[c06b8c]: contrib / asdf / asdf.lisp Maximize Restore History

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;;; -*- mode: Common-Lisp; Base: 10 ; Syntax: ANSI-Common-Lisp -*-
;;; This is ASDF 3.0.2: Another System Definition Facility.
;;;
;;; Feedback, bug reports, and patches are all welcome:
;;; please mail to <asdf-devel@common-lisp.net>.
;;; Note first that the canonical source for ASDF is presently
;;; <URL:http://common-lisp.net/project/asdf/>.
;;;
;;; If you obtained this copy from anywhere else, and you experience
;;; trouble using it, or find bugs, you may want to check at the
;;; location above for a more recent version (and for documentation
;;; and test files, if your copy came without them) before reporting
;;; bugs. There are usually two "supported" revisions - the git master
;;; branch is the latest development version, whereas the git release
;;; branch may be slightly older but is considered `stable'
;;; -- LICENSE START
;;; (This is the MIT / X Consortium license as taken from
;;; http://www.opensource.org/licenses/mit-license.html on or about
;;; Monday; July 13, 2009)
;;;
;;; Copyright (c) 2001-2012 Daniel Barlow and contributors
;;;
;;; Permission is hereby granted, free of charge, to any person obtaining
;;; a copy of this software and associated documentation files (the
;;; "Software"), to deal in the Software without restriction, including
;;; without limitation the rights to use, copy, modify, merge, publish,
;;; distribute, sublicense, and/or sell copies of the Software, and to
;;; permit persons to whom the Software is furnished to do so, subject to
;;; the following conditions:
;;;
;;; The above copyright notice and this permission notice shall be
;;; included in all copies or substantial portions of the Software.
;;;
;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
;;; LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
;;; OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
;;; WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
;;;
;;; -- LICENSE END
;;; The problem with writing a defsystem replacement is bootstrapping:
;;; we can't use defsystem to compile it. Hence, all in one file.
#+xcvb (module ())
(in-package :cl-user)
#+cmu
(eval-when (:load-toplevel :compile-toplevel :execute)
(declaim (optimize (speed 1) (safety 3) (debug 3)))
(setf ext:*gc-verbose* nil))
#+(or abcl clisp clozure cmu ecl xcl)
(eval-when (:load-toplevel :compile-toplevel :execute)
(unless (member :asdf3 *features*)
(let* ((existing-version
(when (find-package :asdf)
(or (symbol-value (find-symbol (string :*asdf-version*) :asdf))
(let ((ver (symbol-value (find-symbol (string :*asdf-revision*) :asdf))))
(etypecase ver
(string ver)
(cons (format nil "~{~D~^.~}" ver))
(null "1.0"))))))
(first-dot (when existing-version (position #\. existing-version)))
(second-dot (when first-dot (position #\. existing-version :start (1+ first-dot))))
(existing-major-minor (subseq existing-version 0 second-dot))
(existing-version-number (and existing-version (read-from-string existing-major-minor)))
(away (format nil "~A-~A" :asdf existing-version)))
(when (and existing-version
(< existing-version-number #+abcl 2.25 #+cmu 2.018 #-(or abcl cmu) 2.27))
(rename-package :asdf away)
(when *load-verbose*
(format t "~&; Renamed old ~A package away to ~A~%" :asdf away))))))
;;;; ---------------------------------------------------------------------------
;;;; Handle ASDF package upgrade, including implementation-dependent magic.
;;
;; See https://bugs.launchpad.net/asdf/+bug/485687
;;
(defpackage :uiop/package
;; CAUTION: we must handle the first few packages specially for hot-upgrade.
;; This package definition MUST NOT change unless its name too changes;
;; if/when it changes, don't forget to add new functions missing from below.
;; Until then, asdf/package is frozen to forever
;; import and export the same exact symbols as for ASDF 2.27.
;; Any other symbol must be import-from'ed and re-export'ed in a different package.
(:use :common-lisp)
(:export
#:find-package* #:find-symbol* #:symbol-call
#:intern* #:export* #:import* #:shadowing-import* #:shadow* #:make-symbol* #:unintern*
#:symbol-shadowing-p #:home-package-p
#:symbol-package-name #:standard-common-lisp-symbol-p
#:reify-package #:unreify-package #:reify-symbol #:unreify-symbol
#:nuke-symbol-in-package #:nuke-symbol #:rehome-symbol
#:ensure-package-unused #:delete-package*
#:package-names #:packages-from-names #:fresh-package-name #:rename-package-away
#:package-definition-form #:parse-define-package-form
#:ensure-package #:define-package))
(in-package :uiop/package)
;;;; General purpose package utilities
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun find-package* (package-designator &optional (error t))
(let ((package (find-package package-designator)))
(cond
(package package)
(error (error "No package named ~S" (string package-designator)))
(t nil))))
(defun find-symbol* (name package-designator &optional (error t))
"Find a symbol in a package of given string'ified NAME;
unless CL:FIND-SYMBOL, work well with 'modern' case sensitive syntax
by letting you supply a symbol or keyword for the name;
also works well when the package is not present.
If optional ERROR argument is NIL, return NIL instead of an error
when the symbol is not found."
(block nil
(let ((package (find-package* package-designator error)))
(when package ;; package error handled by find-package* already
(multiple-value-bind (symbol status) (find-symbol (string name) package)
(cond
(status (return (values symbol status)))
(error (error "There is no symbol ~S in package ~S" name (package-name package))))))
(values nil nil))))
(defun symbol-call (package name &rest args)
"Call a function associated with symbol of given name in given package,
with given ARGS. Useful when the call is read before the package is loaded,
or when loading the package is optional."
(apply (find-symbol* name package) args))
(defun intern* (name package-designator &optional (error t))
(intern (string name) (find-package* package-designator error)))
(defun export* (name package-designator)
(let* ((package (find-package* package-designator))
(symbol (intern* name package)))
(export (or symbol (list symbol)) package)))
(defun import* (symbol package-designator)
(import (or symbol (list symbol)) (find-package* package-designator)))
(defun shadowing-import* (symbol package-designator)
(shadowing-import (or symbol (list symbol)) (find-package* package-designator)))
(defun shadow* (name package-designator)
(shadow (string name) (find-package* package-designator)))
(defun make-symbol* (name)
(etypecase name
(string (make-symbol name))
(symbol (copy-symbol name))))
(defun unintern* (name package-designator &optional (error t))
(block nil
(let ((package (find-package* package-designator error)))
(when package
(multiple-value-bind (symbol status) (find-symbol* name package error)
(cond
(status (unintern symbol package)
(return (values symbol status)))
(error (error "symbol ~A not present in package ~A"
(string symbol) (package-name package))))))
(values nil nil))))
(defun symbol-shadowing-p (symbol package)
(and (member symbol (package-shadowing-symbols package)) t))
(defun home-package-p (symbol package)
(and package (let ((sp (symbol-package symbol)))
(and sp (let ((pp (find-package* package)))
(and pp (eq sp pp))))))))
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun symbol-package-name (symbol)
(let ((package (symbol-package symbol)))
(and package (package-name package))))
(defun standard-common-lisp-symbol-p (symbol)
(multiple-value-bind (sym status) (find-symbol* symbol :common-lisp nil)
(and (eq sym symbol) (eq status :external))))
(defun reify-package (package &optional package-context)
(if (eq package package-context) t
(etypecase package
(null nil)
((eql (find-package :cl)) :cl)
(package (package-name package)))))
(defun unreify-package (package &optional package-context)
(etypecase package
(null nil)
((eql t) package-context)
((or symbol string) (find-package package))))
(defun reify-symbol (symbol &optional package-context)
(etypecase symbol
((or keyword (satisfies standard-common-lisp-symbol-p)) symbol)
(symbol (vector (symbol-name symbol)
(reify-package (symbol-package symbol) package-context)))))
(defun unreify-symbol (symbol &optional package-context)
(etypecase symbol
(symbol symbol)
((simple-vector 2)
(let* ((symbol-name (svref symbol 0))
(package-foo (svref symbol 1))
(package (unreify-package package-foo package-context)))
(if package (intern* symbol-name package)
(make-symbol* symbol-name)))))))
(eval-when (:load-toplevel :compile-toplevel :execute)
(defvar *all-package-happiness* '())
(defvar *all-package-fishiness* (list t))
(defun record-fishy (info)
;;(format t "~&FISHY: ~S~%" info)
(push info *all-package-fishiness*))
(defmacro when-package-fishiness (&body body)
`(when *all-package-fishiness* ,@body))
(defmacro note-package-fishiness (&rest info)
`(when-package-fishiness (record-fishy (list ,@info)))))
(eval-when (:load-toplevel :compile-toplevel :execute)
#+(or clisp clozure)
(defun get-setf-function-symbol (symbol)
#+clisp (let ((sym (get symbol 'system::setf-function)))
(if sym (values sym :setf-function)
(let ((sym (get symbol 'system::setf-expander)))
(if sym (values sym :setf-expander)
(values nil nil)))))
#+clozure (gethash symbol ccl::%setf-function-names%))
#+(or clisp clozure)
(defun set-setf-function-symbol (new-setf-symbol symbol &optional kind)
#+clisp (assert (member kind '(:setf-function :setf-expander)))
#+clozure (assert (eq kind t))
#+clisp
(cond
((null new-setf-symbol)
(remprop symbol 'system::setf-function)
(remprop symbol 'system::setf-expander))
((eq kind :setf-function)
(setf (get symbol 'system::setf-function) new-setf-symbol))
((eq kind :setf-expander)
(setf (get symbol 'system::setf-expander) new-setf-symbol))
(t (error "invalid kind of setf-function ~S for ~S to be set to ~S"
kind symbol new-setf-symbol)))
#+clozure
(progn
(gethash symbol ccl::%setf-function-names%) new-setf-symbol
(gethash new-setf-symbol ccl::%setf-function-name-inverses%) symbol))
#+(or clisp clozure)
(defun create-setf-function-symbol (symbol)
#+clisp (system::setf-symbol symbol)
#+clozure (ccl::construct-setf-function-name symbol))
(defun set-dummy-symbol (symbol reason other-symbol)
(setf (get symbol 'dummy-symbol) (cons reason other-symbol)))
(defun make-dummy-symbol (symbol)
(let ((dummy (copy-symbol symbol)))
(set-dummy-symbol dummy 'replacing symbol)
(set-dummy-symbol symbol 'replaced-by dummy)
dummy))
(defun dummy-symbol (symbol)
(get symbol 'dummy-symbol))
(defun get-dummy-symbol (symbol)
(let ((existing (dummy-symbol symbol)))
(if existing (values (cdr existing) (car existing))
(make-dummy-symbol symbol))))
(defun nuke-symbol-in-package (symbol package-designator)
(let ((package (find-package* package-designator))
(name (symbol-name symbol)))
(multiple-value-bind (sym stat) (find-symbol name package)
(when (and (member stat '(:internal :external)) (eq symbol sym))
(if (symbol-shadowing-p symbol package)
(shadowing-import* (get-dummy-symbol symbol) package)
(unintern* symbol package))))))
(defun nuke-symbol (symbol &optional (packages (list-all-packages)))
#+(or clisp clozure)
(multiple-value-bind (setf-symbol kind)
(get-setf-function-symbol symbol)
(when kind (nuke-symbol setf-symbol)))
(loop :for p :in packages :do (nuke-symbol-in-package symbol p)))
(defun rehome-symbol (symbol package-designator)
"Changes the home package of a symbol, also leaving it present in its old home if any"
(let* ((name (symbol-name symbol))
(package (find-package* package-designator))
(old-package (symbol-package symbol))
(old-status (and old-package (nth-value 1 (find-symbol name old-package))))
(shadowing (and old-package (symbol-shadowing-p symbol old-package) (make-symbol name))))
(multiple-value-bind (overwritten-symbol overwritten-symbol-status) (find-symbol name package)
(unless (eq package old-package)
(let ((overwritten-symbol-shadowing-p
(and overwritten-symbol-status
(symbol-shadowing-p overwritten-symbol package))))
(note-package-fishiness
:rehome-symbol name
(when old-package (package-name old-package)) old-status (and shadowing t)
(package-name package) overwritten-symbol-status overwritten-symbol-shadowing-p)
(when old-package
(if shadowing
(shadowing-import* shadowing old-package))
(unintern* symbol old-package))
(cond
(overwritten-symbol-shadowing-p
(shadowing-import* symbol package))
(t
(when overwritten-symbol-status
(unintern* overwritten-symbol package))
(import* symbol package)))
(if shadowing
(shadowing-import* symbol old-package)
(import* symbol old-package))
#+(or clisp clozure)
(multiple-value-bind (setf-symbol kind)
(get-setf-function-symbol symbol)
(when kind
(let* ((setf-function (fdefinition setf-symbol))
(new-setf-symbol (create-setf-function-symbol symbol)))
(note-package-fishiness
:setf-function
name (package-name package)
(symbol-name setf-symbol) (symbol-package-name setf-symbol)
(symbol-name new-setf-symbol) (symbol-package-name new-setf-symbol))
(when (symbol-package setf-symbol)
(unintern* setf-symbol (symbol-package setf-symbol)))
(setf (fdefinition new-setf-symbol) setf-function)
(set-setf-function-symbol new-setf-symbol symbol kind))))
#+(or clisp clozure)
(multiple-value-bind (overwritten-setf foundp)
(get-setf-function-symbol overwritten-symbol)
(when foundp
(unintern overwritten-setf)))
(when (eq old-status :external)
(export* symbol old-package))
(when (eq overwritten-symbol-status :external)
(export* symbol package))))
(values overwritten-symbol overwritten-symbol-status))))
(defun ensure-package-unused (package)
(loop :for p :in (package-used-by-list package) :do
(unuse-package package p)))
(defun delete-package* (package &key nuke)
(let ((p (find-package package)))
(when p
(when nuke (do-symbols (s p) (when (home-package-p s p) (nuke-symbol s))))
(ensure-package-unused p)
(delete-package package))))
(defun package-names (package)
(cons (package-name package) (package-nicknames package)))
(defun packages-from-names (names)
(remove-duplicates (remove nil (mapcar #'find-package names)) :from-end t))
(defun fresh-package-name (&key (prefix :%TO-BE-DELETED)
separator
(index (random most-positive-fixnum)))
(loop :for i :from index
:for n = (format nil "~A~@[~A~D~]" prefix (and (plusp i) (or separator "")) i)
:thereis (and (not (find-package n)) n)))
(defun rename-package-away (p &rest keys &key prefix &allow-other-keys)
(let ((new-name
(apply 'fresh-package-name
:prefix (or prefix (format nil "__~A__" (package-name p))) keys)))
(record-fishy (list :rename-away (package-names p) new-name))
(rename-package p new-name))))
;;; Communicable representation of symbol and package information
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun package-definition-form (package-designator
&key (nicknamesp t) (usep t)
(shadowp t) (shadowing-import-p t)
(exportp t) (importp t) internp (error t))
(let* ((package (or (find-package* package-designator error)
(return-from package-definition-form nil)))
(name (package-name package))
(nicknames (package-nicknames package))
(use (mapcar #'package-name (package-use-list package)))
(shadow ())
(shadowing-import (make-hash-table :test 'equal))
(import (make-hash-table :test 'equal))
(export ())
(intern ()))
(when package
(loop :for sym :being :the :symbols :in package
:for status = (nth-value 1 (find-symbol* sym package)) :do
(ecase status
((nil :inherited))
((:internal :external)
(let* ((name (symbol-name sym))
(external (eq status :external))
(home (symbol-package sym))
(home-name (package-name home))
(imported (not (eq home package)))
(shadowing (symbol-shadowing-p sym package)))
(cond
((and shadowing imported)
(push name (gethash home-name shadowing-import)))
(shadowing
(push name shadow))
(imported
(push name (gethash home-name import))))
(cond
(external
(push name export))
(imported)
(t (push name intern)))))))
(labels ((sort-names (names)
(sort names #'string<))
(table-keys (table)
(loop :for k :being :the :hash-keys :of table :collect k))
(when-relevant (key value)
(when value (list (cons key value))))
(import-options (key table)
(loop :for i :in (sort-names (table-keys table))
:collect `(,key ,i ,@(sort-names (gethash i table))))))
`(defpackage ,name
,@(when-relevant :nicknames (and nicknamesp (sort-names nicknames)))
(:use ,@(and usep (sort-names use)))
,@(when-relevant :shadow (and shadowp (sort-names shadow)))
,@(import-options :shadowing-import-from (and shadowing-import-p shadowing-import))
,@(import-options :import-from (and importp import))
,@(when-relevant :export (and exportp (sort-names export)))
,@(when-relevant :intern (and internp (sort-names intern)))))))))
;;; ensure-package, define-package
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun ensure-shadowing-import (name to-package from-package shadowed imported)
(check-type name string)
(check-type to-package package)
(check-type from-package package)
(check-type shadowed hash-table)
(check-type imported hash-table)
(let ((import-me (find-symbol* name from-package)))
(multiple-value-bind (existing status) (find-symbol name to-package)
(cond
((gethash name shadowed)
(unless (eq import-me existing)
(error "Conflicting shadowings for ~A" name)))
(t
(setf (gethash name shadowed) t)
(setf (gethash name imported) t)
(unless (or (null status)
(and (member status '(:internal :external))
(eq existing import-me)
(symbol-shadowing-p existing to-package)))
(note-package-fishiness
:shadowing-import name
(package-name from-package)
(or (home-package-p import-me from-package) (symbol-package-name import-me))
(package-name to-package) status
(and status (or (home-package-p existing to-package) (symbol-package-name existing)))))
(shadowing-import* import-me to-package))))))
(defun ensure-imported (import-me into-package &optional from-package)
(check-type import-me symbol)
(check-type into-package package)
(check-type from-package (or null package))
(let ((name (symbol-name import-me)))
(multiple-value-bind (existing status) (find-symbol name into-package)
(cond
((not status)
(import* import-me into-package))
((eq import-me existing))
(t
(let ((shadowing-p (symbol-shadowing-p existing into-package)))
(note-package-fishiness
:ensure-imported name
(and from-package (package-name from-package))
(or (home-package-p import-me from-package) (symbol-package-name import-me))
(package-name into-package)
status
(and status (or (home-package-p existing into-package) (symbol-package-name existing)))
shadowing-p)
(cond
((or shadowing-p (eq status :inherited))
(shadowing-import* import-me into-package))
(t
(unintern* existing into-package)
(import* import-me into-package))))))))
(values))
(defun ensure-import (name to-package from-package shadowed imported)
(check-type name string)
(check-type to-package package)
(check-type from-package package)
(check-type shadowed hash-table)
(check-type imported hash-table)
(multiple-value-bind (import-me import-status) (find-symbol name from-package)
(when (null import-status)
(note-package-fishiness
:import-uninterned name (package-name from-package) (package-name to-package))
(setf import-me (intern* name from-package)))
(multiple-value-bind (existing status) (find-symbol name to-package)
(cond
((and imported (gethash name imported))
(unless (and status (eq import-me existing))
(error "Can't import ~S from both ~S and ~S"
name (package-name (symbol-package existing)) (package-name from-package))))
((gethash name shadowed)
(error "Can't both shadow ~S and import it from ~S" name (package-name from-package)))
(t
(setf (gethash name imported) t))))
(ensure-imported import-me to-package from-package)))
(defun ensure-inherited (name symbol to-package from-package mixp shadowed imported inherited)
(check-type name string)
(check-type symbol symbol)
(check-type to-package package)
(check-type from-package package)
(check-type mixp (member nil t)) ; no cl:boolean on Genera
(check-type shadowed hash-table)
(check-type imported hash-table)
(check-type inherited hash-table)
(multiple-value-bind (existing status) (find-symbol name to-package)
(let* ((sp (symbol-package symbol))
(in (gethash name inherited))
(xp (and status (symbol-package existing))))
(when (null sp)
(note-package-fishiness
:import-uninterned name
(package-name from-package) (package-name to-package) mixp)
(import* symbol from-package)
(setf sp (package-name from-package)))
(cond
((gethash name shadowed))
(in
(unless (equal sp (first in))
(if mixp
(ensure-shadowing-import name to-package (second in) shadowed imported)
(error "Can't inherit ~S from ~S, it is inherited from ~S"
name (package-name sp) (package-name (first in))))))
((gethash name imported)
(unless (eq symbol existing)
(error "Can't inherit ~S from ~S, it is imported from ~S"
name (package-name sp) (package-name xp))))
(t
(setf (gethash name inherited) (list sp from-package))
(when (and status (not (eq sp xp)))
(let ((shadowing (symbol-shadowing-p existing to-package)))
(note-package-fishiness
:inherited name
(package-name from-package)
(or (home-package-p symbol from-package) (symbol-package-name symbol))
(package-name to-package)
(or (home-package-p existing to-package) (symbol-package-name existing)))
(if shadowing (ensure-shadowing-import name to-package from-package shadowed imported)
(unintern* existing to-package)))))))))
(defun ensure-mix (name symbol to-package from-package shadowed imported inherited)
(check-type name string)
(check-type symbol symbol)
(check-type to-package package)
(check-type from-package package)
(check-type shadowed hash-table)
(check-type imported hash-table)
(check-type inherited hash-table)
(unless (gethash name shadowed)
(multiple-value-bind (existing status) (find-symbol name to-package)
(let* ((sp (symbol-package symbol))
(im (gethash name imported))
(in (gethash name inherited)))
(cond
((or (null status)
(and status (eq symbol existing))
(and in (eq sp (first in))))
(ensure-inherited name symbol to-package from-package t shadowed imported inherited))
(in
(remhash name inherited)
(ensure-shadowing-import name to-package (second in) shadowed imported))
(im
(error "Symbol ~S import from ~S~:[~; actually ~:[uninterned~;~:*from ~S~]~] conflicts with existing symbol in ~S~:[~; actually ~:[uninterned~;from ~:*~S~]~]"
name (package-name from-package)
(home-package-p symbol from-package) (symbol-package-name symbol)
(package-name to-package)
(home-package-p existing to-package) (symbol-package-name existing)))
(t
(ensure-inherited name symbol to-package from-package t shadowed imported inherited)))))))
(defun recycle-symbol (name recycle exported)
(check-type name string)
(check-type recycle list)
(check-type exported hash-table)
(when (gethash name exported) ;; don't bother recycling private symbols
(let (recycled foundp)
(dolist (r recycle (values recycled foundp))
(multiple-value-bind (symbol status) (find-symbol name r)
(when (and status (home-package-p symbol r))
(cond
(foundp
;; (nuke-symbol symbol)) -- even simple variable names like O or C will do that.
(note-package-fishiness :recycled-duplicate name (package-name foundp) (package-name r)))
(t
(setf recycled symbol foundp r)))))))))
(defun symbol-recycled-p (sym recycle)
(check-type sym symbol)
(check-type recycle list)
(and (member (symbol-package sym) recycle) t))
(defun ensure-symbol (name package intern recycle shadowed imported inherited exported)
(check-type name string)
(check-type package package)
(check-type intern (member nil t)) ; no cl:boolean on Genera
(check-type shadowed hash-table)
(check-type imported hash-table)
(check-type inherited hash-table)
(unless (or (gethash name shadowed)
(gethash name imported)
(gethash name inherited))
(multiple-value-bind (existing status)
(find-symbol name package)
(multiple-value-bind (recycled previous) (recycle-symbol name recycle exported)
(cond
((and status (eq existing recycled) (eq previous package)))
(previous
(rehome-symbol recycled package))
((and status (eq package (symbol-package existing))))
(t
(when status
(note-package-fishiness
:ensure-symbol name
(reify-package (symbol-package existing) package)
status intern)
(unintern existing))
(when intern
(intern* name package))))))))
(declaim (ftype function ensure-exported))
(defun ensure-exported-to-user (name symbol to-package &optional recycle)
(check-type name string)
(check-type symbol symbol)
(check-type to-package package)
(check-type recycle list)
(assert (equal name (symbol-name symbol)))
(multiple-value-bind (existing status) (find-symbol name to-package)
(unless (and status (eq symbol existing))
(let ((accessible
(or (null status)
(let ((shadowing (symbol-shadowing-p existing to-package))
(recycled (symbol-recycled-p existing recycle)))
(unless (and shadowing (not recycled))
(note-package-fishiness
:ensure-export name (symbol-package-name symbol)
(package-name to-package)
(or (home-package-p existing to-package) (symbol-package-name existing))
status shadowing)
(if (or (eq status :inherited) shadowing)
(shadowing-import* symbol to-package)
(unintern existing to-package))
t)))))
(when (and accessible (eq status :external))
(ensure-exported name symbol to-package recycle))))))
(defun ensure-exported (name symbol from-package &optional recycle)
(dolist (to-package (package-used-by-list from-package))
(ensure-exported-to-user name symbol to-package recycle))
(unless (eq from-package (symbol-package symbol))
(ensure-imported symbol from-package))
(export* name from-package))
(defun ensure-export (name from-package &optional recycle)
(multiple-value-bind (symbol status) (find-symbol* name from-package)
(unless (eq status :external)
(ensure-exported name symbol from-package recycle))))
(defun ensure-package (name &key
nicknames documentation use
shadow shadowing-import-from
import-from export intern
recycle mix reexport
unintern)
#+(or gcl2.6 genera) (declare (ignore documentation))
(let* ((package-name (string name))
(nicknames (mapcar #'string nicknames))
(names (cons package-name nicknames))
(previous (packages-from-names names))
(discarded (cdr previous))
(to-delete ())
(package (or (first previous) (make-package package-name :nicknames nicknames)))
(recycle (packages-from-names recycle))
(use (mapcar 'find-package* use))
(mix (mapcar 'find-package* mix))
(reexport (mapcar 'find-package* reexport))
(shadow (mapcar 'string shadow))
(export (mapcar 'string export))
(intern (mapcar 'string intern))
(unintern (mapcar 'string unintern))
(shadowed (make-hash-table :test 'equal)) ; string to bool
(imported (make-hash-table :test 'equal)) ; string to bool
(exported (make-hash-table :test 'equal)) ; string to bool
;; string to list home package and use package:
(inherited (make-hash-table :test 'equal)))
(when-package-fishiness (record-fishy package-name))
#-(or gcl2.6 genera)
(when documentation (setf (documentation package t) documentation))
(loop :for p :in (set-difference (package-use-list package) (append mix use))
:do (note-package-fishiness :over-use name (package-names p))
(unuse-package p package))
(loop :for p :in discarded
:for n = (remove-if #'(lambda (x) (member x names :test 'equal))
(package-names p))
:do (note-package-fishiness :nickname name (package-names p))
(cond (n (rename-package p (first n) (rest n)))
(t (rename-package-away p)
(push p to-delete))))
(rename-package package package-name nicknames)
(dolist (name unintern)
(multiple-value-bind (existing status) (find-symbol name package)
(when status
(unless (eq status :inherited)
(note-package-fishiness
:unintern (package-name package) name (symbol-package-name existing) status)
(unintern* name package nil)))))
(dolist (name export)
(setf (gethash name exported) t))
(dolist (p reexport)
(do-external-symbols (sym p)
(setf (gethash (string sym) exported) t)))
(do-external-symbols (sym package)
(let ((name (symbol-name sym)))
(unless (gethash name exported)
(note-package-fishiness
:over-export (package-name package) name
(or (home-package-p sym package) (symbol-package-name sym)))
(unexport sym package))))
(dolist (name shadow)
(setf (gethash name shadowed) t)
(multiple-value-bind (existing status) (find-symbol name package)
(multiple-value-bind (recycled previous) (recycle-symbol name recycle exported)
(let ((shadowing (and status (symbol-shadowing-p existing package))))
(cond
((eq previous package))
(previous
(rehome-symbol recycled package))
((or (member status '(nil :inherited))
(home-package-p existing package)))
(t
(let ((dummy (make-symbol name)))
(note-package-fishiness
:shadow-imported (package-name package) name
(symbol-package-name existing) status shadowing)
(shadowing-import* dummy package)
(import* dummy package)))))))
(shadow* name package))
(loop :for (p . syms) :in shadowing-import-from
:for pp = (find-package* p) :do
(dolist (sym syms) (ensure-shadowing-import (string sym) package pp shadowed imported)))
(loop :for p :in mix
:for pp = (find-package* p) :do
(do-external-symbols (sym pp) (ensure-mix (symbol-name sym) sym package pp shadowed imported inherited)))
(loop :for (p . syms) :in import-from
:for pp = (find-package p) :do
(dolist (sym syms) (ensure-import (symbol-name sym) package pp shadowed imported)))
(dolist (p (append use mix))
(do-external-symbols (sym p) (ensure-inherited (string sym) sym package p nil shadowed imported inherited))
(use-package p package))
(loop :for name :being :the :hash-keys :of exported :do
(ensure-symbol name package t recycle shadowed imported inherited exported)
(ensure-export name package recycle))
(dolist (name intern)
(ensure-symbol name package t recycle shadowed imported inherited exported))
(do-symbols (sym package)
(ensure-symbol (symbol-name sym) package nil recycle shadowed imported inherited exported))
(map () 'delete-package* to-delete)
package)))
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun parse-define-package-form (package clauses)
(loop
:with use-p = nil :with recycle-p = nil
:with documentation = nil
:for (kw . args) :in clauses
:when (eq kw :nicknames) :append args :into nicknames :else
:when (eq kw :documentation)
:do (cond
(documentation (error "define-package: can't define documentation twice"))
((or (atom args) (cdr args)) (error "define-package: bad documentation"))
(t (setf documentation (car args)))) :else
:when (eq kw :use) :append args :into use :and :do (setf use-p t) :else
:when (eq kw :shadow) :append args :into shadow :else
:when (eq kw :shadowing-import-from) :collect args :into shadowing-import-from :else
:when (eq kw :import-from) :collect args :into import-from :else
:when (eq kw :export) :append args :into export :else
:when (eq kw :intern) :append args :into intern :else
:when (eq kw :recycle) :append args :into recycle :and :do (setf recycle-p t) :else
:when (eq kw :mix) :append args :into mix :else
:when (eq kw :reexport) :append args :into reexport :else
:when (eq kw :unintern) :append args :into unintern :else
:do (error "unrecognized define-package keyword ~S" kw)
:finally (return `(,package
:nicknames ,nicknames :documentation ,documentation
:use ,(if use-p use '(:common-lisp))
:shadow ,shadow :shadowing-import-from ,shadowing-import-from
:import-from ,import-from :export ,export :intern ,intern
:recycle ,(if recycle-p recycle (cons package nicknames))
:mix ,mix :reexport ,reexport :unintern ,unintern)))))
(defmacro define-package (package &rest clauses)
(let ((ensure-form
`(apply 'ensure-package ',(parse-define-package-form package clauses))))
`(progn
#+clisp
(eval-when (:compile-toplevel :load-toplevel :execute)
,ensure-form)
#+(or clisp ecl gcl) (defpackage ,package (:use))
(eval-when (:compile-toplevel :load-toplevel :execute)
,ensure-form))))
;;;; Final tricks to keep various implementations happy.
;; We want most such tricks in common-lisp.lisp,
;; but these need to be done before the define-package form there,
;; that we nevertheless want to be the very first form.
(eval-when (:load-toplevel :compile-toplevel :execute)
#+allegro ;; We need to disable autoloading BEFORE any mention of package ASDF.
(setf excl::*autoload-package-name-alist*
(remove "asdf" excl::*autoload-package-name-alist*
:test 'equalp :key 'car))
#+gcl
;; Debian's GCL 2.7 has bugs with compiling multiple-value stuff,
;; but can run ASDF 2.011. GCL 2.6 has even more issues.
(cond
((or (< system::*gcl-major-version* 2)
(and (= system::*gcl-major-version* 2)
(< system::*gcl-minor-version* 6)))
(error "GCL 2.6 or later required to use ASDF"))
((and (= system::*gcl-major-version* 2)
(= system::*gcl-minor-version* 6))
(pushnew 'ignorable pcl::*variable-declarations-without-argument*)
(pushnew :gcl2.6 *features*))
(t
(pushnew :gcl2.7 *features*))))
;; Compatibility with whoever calls asdf/package
(define-package :asdf/package (:use :cl :uiop/package) (:reexport :uiop/package))
;;;; -------------------------------------------------------------------------
;;;; Handle compatibility with multiple implementations.
;;; This file is for papering over the deficiencies and peculiarities
;;; of various Common Lisp implementations.
;;; For implementation-specific access to the system, see os.lisp instead.
;;; A few functions are defined here, but actually exported from utility;
;;; from this package only common-lisp symbols are exported.
(uiop/package:define-package :uiop/common-lisp
(:nicknames :uoip/cl :asdf/common-lisp :asdf/cl)
(:use #-genera :common-lisp #+genera :future-common-lisp :uiop/package)
(:reexport :common-lisp)
(:recycle :uiop/common-lisp :uoip/cl :asdf/common-lisp :asdf/cl :asdf)
#+allegro (:intern #:*acl-warn-save*)
#+cormanlisp (:shadow #:user-homedir-pathname)
#+cormanlisp
(:export
#:logical-pathname #:translate-logical-pathname
#:make-broadcast-stream #:file-namestring)
#+gcl2.6 (:shadow #:type-of #:with-standard-io-syntax) ; causes errors when loading fasl(!)
#+gcl2.6 (:shadowing-import-from :system #:*load-pathname*)
#+genera (:shadowing-import-from :scl #:boolean)
#+genera (:export #:boolean #:ensure-directories-exist)
#+mcl (:shadow #:user-homedir-pathname))
(in-package :uiop/common-lisp)
#-(or abcl allegro clisp clozure cmu cormanlisp ecl gcl genera lispworks mcl mkcl sbcl scl xcl)
(error "ASDF is not supported on your implementation. Please help us port it.")
;; (declaim (optimize (speed 1) (debug 3) (safety 3))) ; DON'T: trust implementation defaults.
;;;; Early meta-level tweaks
#+(or abcl (and allegro ics) (and (or clisp cmu ecl mkcl) unicode)
clozure lispworks (and sbcl sb-unicode) scl)
(eval-when (:load-toplevel :compile-toplevel :execute)
(pushnew :asdf-unicode *features*))
#+allegro
(eval-when (:load-toplevel :compile-toplevel :execute)
(defparameter *acl-warn-save*
(when (boundp 'excl:*warn-on-nested-reader-conditionals*)
excl:*warn-on-nested-reader-conditionals*))
(when (boundp 'excl:*warn-on-nested-reader-conditionals*)
(setf excl:*warn-on-nested-reader-conditionals* nil))
(setf *print-readably* nil))
#+cormanlisp
(eval-when (:load-toplevel :compile-toplevel :execute)
(deftype logical-pathname () nil)
(defun make-broadcast-stream () *error-output*)
(defun translate-logical-pathname (x) x)
(defun user-homedir-pathname (&optional host)
(declare (ignore host))
(parse-namestring (format nil "~A\\" (cl:user-homedir-pathname))))
(defun file-namestring (p)
(setf p (pathname p))
(format nil "~@[~A~]~@[.~A~]" (pathname-name p) (pathname-type p))))
#+ecl
(eval-when (:load-toplevel :compile-toplevel :execute)
(setf *load-verbose* nil)
(defun use-ecl-byte-compiler-p () (and (member :ecl-bytecmp *features*) t))
(unless (use-ecl-byte-compiler-p) (require :cmp)))
#+gcl ;; Debian's GCL 2.7 has bugs with compiling multiple-value stuff, but can run ASDF 2.011
(eval-when (:load-toplevel :compile-toplevel :execute)
(unless (member :ansi-cl *features*)
(error "ASDF only supports GCL in ANSI mode. Aborting.~%"))
(setf compiler::*compiler-default-type* (pathname "")
compiler::*lsp-ext* ""))
#+gcl2.6
(eval-when (:compile-toplevel :load-toplevel :execute)
(shadow 'type-of :uiop/common-lisp)
(shadowing-import 'system:*load-pathname* :uiop/common-lisp))
#+gcl2.6
(eval-when (:compile-toplevel :load-toplevel :execute)
(export 'type-of :uiop/common-lisp)
(export 'system:*load-pathname* :uiop/common-lisp))
#+gcl2.6 ;; Doesn't support either logical-pathnames or output-translations.
(eval-when (:load-toplevel :compile-toplevel :execute)
(defvar *gcl2.6* t)
(deftype logical-pathname () nil)
(defun type-of (x) (class-name (class-of x)))
(defun wild-pathname-p (path) (declare (ignore path)) nil)
(defun translate-logical-pathname (x) x)
(defvar *compile-file-pathname* nil)
(defun pathname-match-p (in-pathname wild-pathname)
(declare (ignore in-wildname wild-wildname)) nil)
(defun translate-pathname (source from-wildname to-wildname &key)
(declare (ignore from-wildname to-wildname)) source)
(defun %print-unreadable-object (object stream type identity thunk)
(format stream "#<~@[~S ~]" (when type (type-of object)))
(funcall thunk)
(format stream "~@[ ~X~]>" (when identity (system:address object))))
(defmacro with-standard-io-syntax (&body body)
`(progn ,@body))
(defmacro with-compilation-unit (options &body body)
(declare (ignore options)) `(progn ,@body))
(defmacro print-unreadable-object ((object stream &key type identity) &body body)
`(%print-unreadable-object ,object ,stream ,type ,identity (lambda () ,@body)))
(defun ensure-directories-exist (path)
(lisp:system (format nil "mkdir -p ~S"
(namestring (make-pathname :name nil :type nil :version nil :defaults path))))))
#+genera
(eval-when (:load-toplevel :compile-toplevel :execute)
(unless (fboundp 'ensure-directories-exist)
(defun ensure-directories-exist (path)
(fs:create-directories-recursively (pathname path)))))
#.(or #+mcl ;; the #$ doesn't work on other lisps, even protected by #+mcl, so we use this trick
(read-from-string
"(eval-when (:load-toplevel :compile-toplevel :execute)
(ccl:define-entry-point (_getenv \"getenv\") ((name :string)) :string)
(ccl:define-entry-point (_system \"system\") ((name :string)) :int)
;; Note: ASDF may expect user-homedir-pathname to provide
;; the pathname of the current user's home directory, whereas
;; MCL by default provides the directory from which MCL was started.
;; See http://code.google.com/p/mcl/wiki/Portability
(defun user-homedir-pathname ()
(ccl::findfolder #$kuserdomain #$kCurrentUserFolderType))
(defun probe-posix (posix-namestring)
\"If a file exists for the posix namestring, return the pathname\"
(ccl::with-cstrs ((cpath posix-namestring))
(ccl::rlet ((is-dir :boolean)
(fsref :fsref))
(when (eq #$noerr (#_fspathmakeref cpath fsref is-dir))
(ccl::%path-from-fsref fsref is-dir))))))"))
#+mkcl
(eval-when (:load-toplevel :compile-toplevel :execute)
(require :cmp)
(setq clos::*redefine-class-in-place* t)) ;; Make sure we have strict ANSI class redefinition semantics
;;;; Looping
(eval-when (:load-toplevel :compile-toplevel :execute)
(defmacro loop* (&rest rest)
#-genera `(loop ,@rest)
#+genera `(lisp:loop ,@rest))) ;; In genera, CL:LOOP can't destructure, so we use LOOP*. Sigh.
;;;; compatfmt: avoid fancy format directives when unsupported
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun frob-substrings (string substrings &optional frob)
(declare (optimize (speed 0) (safety 3) (debug 3)))
(let ((length (length string)) (stream nil))
(labels ((emit-string (x &optional (start 0) (end (length x)))
(when (< start end)
(unless stream (setf stream (make-string-output-stream)))
(write-string x stream :start start :end end)))
(emit-substring (start end)
(when (and (zerop start) (= end length))
(return-from frob-substrings string))
(emit-string string start end))
(recurse (substrings start end)
(cond
((>= start end))
((null substrings) (emit-substring start end))
(t (let* ((sub-spec (first substrings))
(sub (if (consp sub-spec) (car sub-spec) sub-spec))
(fun (if (consp sub-spec) (cdr sub-spec) frob))
(found (search sub string :start2 start :end2 end))
(more (rest substrings)))
(cond
(found
(recurse more start found)
(etypecase fun
(null)
(string (emit-string fun))
(function (funcall fun sub #'emit-string)))
(recurse substrings (+ found (length sub)) end))
(t
(recurse more start end))))))))
(recurse substrings 0 length))
(if stream (get-output-stream-string stream) "")))
(defmacro compatfmt (format)
#+(or gcl genera)
(frob-substrings format `("~3i~_" #+(or genera gcl2.6) ,@'("~@<" "~@;" "~@:>" "~:>")))
#-(or gcl genera) format))
;;;; -------------------------------------------------------------------------
;;;; General Purpose Utilities for ASDF
(uiop/package:define-package :uiop/utility
(:nicknames :asdf/utility)
(:recycle :uiop/utility :asdf/utility :asdf)
(:use :uiop/common-lisp :uiop/package)
;; import and reexport a few things defined in :asdf/common-lisp
(:import-from :uiop/common-lisp #:compatfmt #:loop* #:frob-substrings
#+ecl #:use-ecl-byte-compiler-p #+mcl #:probe-posix)
(:export #:compatfmt #:loop* #:frob-substrings #:compatfmt
#+ecl #:use-ecl-byte-compiler-p #+mcl #:probe-posix)
(:export
;; magic helper to define debugging functions:
#:uiop-debug #:load-uiop-debug-utility #:*uiop-debug-utility*
#:undefine-function #:undefine-functions #:defun* #:defgeneric* #:with-upgradability ;; (un)defining functions
#:if-let ;; basic flow control
#:while-collecting #:appendf #:length=n-p #:ensure-list ;; lists
#:remove-plist-keys #:remove-plist-key ;; plists
#:emptyp ;; sequences
#:+non-base-chars-exist-p+ ;; characters
#:base-string-p #:strings-common-element-type #:reduce/strcat #:strcat ;; strings
#:first-char #:last-char #:split-string
#:string-prefix-p #:string-enclosed-p #:string-suffix-p
#:find-class* ;; CLOS
#:stamp< #:stamps< #:stamp*< #:stamp<= ;; stamps
#:earlier-stamp #:stamps-earliest #:earliest-stamp
#:later-stamp #:stamps-latest #:latest-stamp #:latest-stamp-f
#:list-to-hash-set ;; hash-table
#:ensure-function #:access-at #:access-at-count ;; functions
#:call-function #:call-functions #:register-hook-function
#:match-condition-p #:match-any-condition-p ;; conditions
#:call-with-muffled-conditions #:with-muffled-conditions
#:lexicographic< #:lexicographic<=
#:parse-version #:unparse-version #:version< #:version<= #:version-compatible-p)) ;; version
(in-package :uiop/utility)
;;;; Defining functions in a way compatible with hot-upgrade:
;; DEFUN* and DEFGENERIC* use FMAKUNBOUND to delete any previous fdefinition,
;; thus replacing the function without warning or error
;; even if the signature and/or generic-ness of the function has changed.
;; For a generic function, this invalidates any previous DEFMETHOD.
(eval-when (:load-toplevel :compile-toplevel :execute)
(defun undefine-function (function-spec)
(cond
((symbolp function-spec)
#+clisp
(let ((f (and (fboundp function-spec) (fdefinition function-spec))))
(when (typep f 'clos:standard-generic-function)
(loop :for m :in (clos:generic-function-methods f)
:do (remove-method f m))))
(fmakunbound function-spec))
((and (consp function-spec) (eq (car function-spec) 'setf)
(consp (cdr function-spec)) (null (cddr function-spec)))
#-gcl2.6 (fmakunbound function-spec))
(t (error "bad function spec ~S" function-spec))))
(defun undefine-functions (function-spec-list)
(map () 'undefine-function function-spec-list))
(macrolet
((defdef (def* def)
`(defmacro ,def* (name formals &rest rest)
(destructuring-bind (name &key (supersede t))
(if (or (atom name) (eq (car name) 'setf))
(list name :supersede nil)
name)
(declare (ignorable supersede))
`(progn
;; undefining the previous function is the portable way
;; of overriding any incompatible previous gf, except on CLISP.
;; We usually try to do it only for the functions that need it,
;; which happens in asdf/upgrade - however, for ECL, we need this hammer,
;; (which causes issues in clisp)
,@(when (or #-clisp supersede #+(or ecl gcl2.7) t) ; XXX
`((undefine-function ',name)))
#-gcl ; gcl 2.7.0 notinline functions lose secondary return values :-(
,@(when (and #+ecl (symbolp name)) ; fails for setf functions on ecl
`((declaim (notinline ,name))))
(,',def ,name ,formals ,@rest))))))
(defdef defgeneric* defgeneric)
(defdef defun* defun))
(defmacro with-upgradability ((&optional) &body body)
`(eval-when (:compile-toplevel :load-toplevel :execute)
,@(loop :for form :in body :collect
(if (consp form)
(destructuring-bind (car . cdr) form
(case car
((defun) `(defun* ,@cdr))
((defgeneric)
(unless (or #+gcl2.6 (and (consp (car cdr)) (eq 'setf (caar cdr))))
`(defgeneric* ,@cdr)))
(otherwise form)))
form)))))
;;; Magic debugging help. See contrib/debug.lisp
(with-upgradability ()
(defvar *uiop-debug-utility*
'(or (ignore-errors
(symbol-call :asdf :system-relative-pathname :uiop "contrib/debug.lisp"))
(symbol-call :uiop/pathname :subpathname (user-homedir-pathname) "cl/asdf/uiop/contrib/debug.lisp"))
"form that evaluates to the pathname to your favorite debugging utilities")
(defmacro uiop-debug (&rest keys)
`(eval-when (:compile-toplevel :load-toplevel :execute)
(load-uiop-debug-utility ,@keys)))
(defun load-uiop-debug-utility (&key package utility-file)
(let* ((*package* (if package (find-package package) *package*))
(keyword (read-from-string
(format nil ":DBG-~:@(~A~)" (package-name *package*)))))
(unless (member keyword *features*)
(let* ((utility-file (or utility-file *uiop-debug-utility*))
(file (ignore-errors (probe-file (eval utility-file)))))
(if file (load file)
(error "Failed to locate debug utility file: ~S" utility-file)))))))
;;; Flow control
(with-upgradability ()
(defmacro if-let (bindings &body (then-form &optional else-form)) ;; from alexandria
;; bindings can be (var form) or ((var1 form1) ...)
(let* ((binding-list (if (and (consp bindings) (symbolp (car bindings)))
(list bindings)
bindings))
(variables (mapcar #'car binding-list)))
`(let ,binding-list
(if (and ,@variables)
,then-form
,else-form)))))
;;; List manipulation
(with-upgradability ()
(defmacro while-collecting ((&rest collectors) &body body)
"COLLECTORS should be a list of names for collections. A collector
defines a function that, when applied to an argument inside BODY, will
add its argument to the corresponding collection. Returns multiple values,
a list for each collection, in order.
E.g.,
\(while-collecting \(foo bar\)
\(dolist \(x '\(\(a 1\) \(b 2\) \(c 3\)\)\)
\(foo \(first x\)\)
\(bar \(second x\)\)\)\)
Returns two values: \(A B C\) and \(1 2 3\)."
(let ((vars (mapcar #'(lambda (x) (gensym (symbol-name x))) collectors))
(initial-values (mapcar (constantly nil) collectors)))
`(let ,(mapcar #'list vars initial-values)
(flet ,(mapcar #'(lambda (c v) `(,c (x) (push x ,v) (values))) collectors vars)
,@body
(values ,@(mapcar #'(lambda (v) `(reverse ,v)) vars))))))
(define-modify-macro appendf (&rest args)
append "Append onto list") ;; only to be used on short lists.
(defun length=n-p (x n) ;is it that (= (length x) n) ?
(check-type n (integer 0 *))
(loop
:for l = x :then (cdr l)
:for i :downfrom n :do
(cond
((zerop i) (return (null l)))
((not (consp l)) (return nil)))))
(defun ensure-list (x)
(if (listp x) x (list x))))
;;; remove a key from a plist, i.e. for keyword argument cleanup
(with-upgradability ()
(defun remove-plist-key (key plist)
"Remove a single key from a plist"
(loop* :for (k v) :on plist :by #'cddr
:unless (eq k key)
:append (list k v)))
(defun remove-plist-keys (keys plist)
"Remove a list of keys from a plist"
(loop* :for (k v) :on plist :by #'cddr
:unless (member k keys)
:append (list k v))))
;;; Sequences
(with-upgradability ()
(defun emptyp (x)
"Predicate that is true for an empty sequence"
(or (null x) (and (vectorp x) (zerop (length x))))))
;;; Characters
(with-upgradability ()
(defconstant +non-base-chars-exist-p+ (not (subtypep 'character 'base-char)))
(when +non-base-chars-exist-p+ (pushnew :non-base-chars-exist-p *features*)))
;;; Strings
(with-upgradability ()
(defun base-string-p (string)
(declare (ignorable string))
(and #+non-base-chars-exist-p (eq 'base-char (array-element-type string))))
(defun strings-common-element-type (strings)
(declare (ignorable strings))
#-non-base-chars-exist-p 'character
#+non-base-chars-exist-p
(if (loop :for s :in strings :always (or (null s) (typep s 'base-char) (base-string-p s)))
'base-char 'character))
(defun reduce/strcat (strings &key key start end)
"Reduce a list as if by STRCAT, accepting KEY START and END keywords like REDUCE.
NIL is interpreted as an empty string. A character is interpreted as a string of length one."
(when (or start end) (setf strings (subseq strings start end)))
(when key (setf strings (mapcar key strings)))
(loop :with output = (make-string (loop :for s :in strings :sum (if (characterp s) 1 (length s)))
:element-type (strings-common-element-type strings))
:with pos = 0
:for input :in strings
:do (etypecase input
(null)
(character (setf (char output pos) input) (incf pos))
(string (replace output input :start1 pos) (incf pos (length input))))
:finally (return output)))
(defun strcat (&rest strings)
(reduce/strcat strings))
(defun first-char (s)
(and (stringp s) (plusp (length s)) (char s 0)))
(defun last-char (s)
(and (stringp s) (plusp (length s)) (char s (1- (length s)))))
(defun split-string (string &key max (separator '(#\Space #\Tab)))
"Split STRING into a list of components separated by
any of the characters in the sequence SEPARATOR.
If MAX is specified, then no more than max(1,MAX) components will be returned,
starting the separation from the end, e.g. when called with arguments
\"a.b.c.d.e\" :max 3 :separator \".\" it will return (\"a.b.c\" \"d\" \"e\")."
(block ()
(let ((list nil) (words 0) (end (length string)))
(flet ((separatorp (char) (find char separator))
(done () (return (cons (subseq string 0 end) list))))
(loop
:for start = (if (and max (>= words (1- max)))
(done)
(position-if #'separatorp string :end end :from-end t))
:do (when (null start) (done))
(push (subseq string (1+ start) end) list)
(incf words)
(setf end start))))))
(defun string-prefix-p (prefix string)
"Does STRING begin with PREFIX?"
(let* ((x (string prefix))
(y (string string))
(lx (length x))
(ly (length y)))
(and (<= lx ly) (string= x y :end2 lx))))
(defun string-suffix-p (string suffix)
"Does STRING end with SUFFIX?"
(let* ((x (string string))
(y (string suffix))
(lx (length x))
(ly (length y)))
(and (<= ly lx) (string= x y :start1 (- lx ly)))))
(defun string-enclosed-p (prefix string suffix)
"Does STRING begin with PREFIX and end with SUFFIX?"
(and (string-prefix-p prefix string)
(string-suffix-p string suffix))))
;;; CLOS
(with-upgradability ()
(defun find-class* (x &optional (errorp t) environment)
(etypecase x
((or standard-class built-in-class) x)
#+gcl2.6 (keyword nil)
(symbol (find-class x errorp environment)))))
;;; stamps: a REAL or boolean where NIL=-infinity, T=+infinity
(eval-when (#-lispworks :compile-toplevel :load-toplevel :execute)
(deftype stamp () '(or real boolean)))
(with-upgradability ()
(defun stamp< (x y)
(etypecase x
(null (and y t))
((eql t) nil)
(real (etypecase y
(null nil)
((eql t) t)
(real (< x y))))))
(defun stamps< (list) (loop :for y :in list :for x = nil :then y :always (stamp< x y)))
(defun stamp*< (&rest list) (stamps< list))
(defun stamp<= (x y) (not (stamp< y x)))
(defun earlier-stamp (x y) (if (stamp< x y) x y))
(defun stamps-earliest (list) (reduce 'earlier-stamp list :initial-value t))
(defun earliest-stamp (&rest list) (stamps-earliest list))
(defun later-stamp (x y) (if (stamp< x y) y x))
(defun stamps-latest (list) (reduce 'later-stamp list :initial-value nil))
(defun latest-stamp (&rest list) (stamps-latest list))
(define-modify-macro latest-stamp-f (&rest stamps) latest-stamp))
;;; Hash-tables
(with-upgradability ()
(defun list-to-hash-set (list &aux (h (make-hash-table :test 'equal)))
(dolist (x list h) (setf (gethash x h) t))))
;;; Function designators
(with-upgradability ()
(defun ensure-function (fun &key (package :cl))
"Coerce the object FUN into a function.
If FUN is a FUNCTION, return it.
If the FUN is a non-sequence literal constant, return constantly that,
i.e. for a boolean keyword character number or pathname.
Otherwise if FUN is a non-literally constant symbol, return its FDEFINITION.
If FUN is a CONS, return the function that applies its CAR
to the appended list of the rest of its CDR and the arguments.
If FUN is a string, READ a form from it in the specified PACKAGE (default: CL)
and EVAL that in a (FUNCTION ...) context."
(etypecase fun
(function fun)
((or boolean keyword character number pathname) (constantly fun))
((or function symbol) fun)
(cons #'(lambda (&rest args) (apply (car fun) (append (cdr fun) args))))
(string (eval `(function ,(with-standard-io-syntax
(let ((*package* (find-package package)))
(read-from-string fun))))))))
(defun access-at (object at)
"Given an OBJECT and an AT specifier, list of successive accessors,
call each accessor on the result of the previous calls.
An accessor may be an integer, meaning a call to ELT,
a keyword, meaning a call to GETF,
NIL, meaning identity,
a function or other symbol, meaning itself,
or a list of a function designator and arguments, interpreted as per ENSURE-FUNCTION.
As a degenerate case, the AT specifier may be an atom of a single such accessor
instead of a list."
(flet ((access (object accessor)
(etypecase accessor
(function (funcall accessor object))
(integer (elt object accessor))
(keyword (getf object accessor))
(null object)
(symbol (funcall accessor object))
(cons (funcall (ensure-function accessor) object)))))
(if (listp at)
(dolist (accessor at object)
(setf object (access object accessor)))
(access object at))))
(defun access-at-count (at)
"From an AT specification, extract a COUNT of maximum number
of sub-objects to read as per ACCESS-AT"
(cond
((integerp at)
(1+ at))
((and (consp at) (integerp (first at)))
(1+ (first at)))))
(defun call-function (function-spec &rest arguments)
(apply (ensure-function function-spec) arguments))
(defun call-functions (function-specs)
(map () 'call-function function-specs))
(defun register-hook-function (variable hook &optional call-now-p)
(pushnew hook (symbol-value variable))
(when call-now-p (call-function hook))))
;;; Version handling
(with-upgradability ()
(defun unparse-version (version-list)
(format nil "~{~D~^.~}" version-list))
(defun parse-version (version-string &optional on-error)
"Parse a VERSION-STRING as a series of natural integers separated by dots.
Return a (non-null) list of integers if the string is valid;
otherwise return NIL.
When invalid, ON-ERROR is called as per CALL-FUNCTION before to return NIL,
with format arguments explaining why the version is invalid.
ON-ERROR is also called if the version is not canonical
in that it doesn't print back to itself, but the list is returned anyway."
(block nil
(unless (stringp version-string)
(call-function on-error "~S: ~S is not a string" 'parse-version version-string)
(return))
(unless (loop :for prev = nil :then c :for c :across version-string
:always (or (digit-char-p c)
(and (eql c #\.) prev (not (eql prev #\.))))
:finally (return (and c (digit-char-p c))))
(call-function on-error "~S: ~S doesn't follow asdf version numbering convention"
'parse-version version-string)
(return))
(let* ((version-list
(mapcar #'parse-integer (split-string version-string :separator ".")))
(normalized-version (unparse-version version-list)))
(unless (equal version-string normalized-version)
(call-function on-error "~S: ~S contains leading zeros" 'parse-version version-string))
version-list)))
(defun lexicographic< (< x y)
(cond ((null y) nil)
((null x) t)
((funcall < (car x) (car y)) t)
((funcall < (car y) (car x)) nil)
(t (lexicographic< < (cdr x) (cdr y)))))
(defun lexicographic<= (< x y)
(not (lexicographic< < y x)))
(defun version< (version1 version2)
(let ((v1 (parse-version version1 nil))
(v2 (parse-version version2 nil)))
(lexicographic< '< v1 v2)))
(defun version<= (version1 version2)
(not (version< version2 version1)))
(defun version-compatible-p (provided-version required-version)
"Is the provided version a compatible substitution for the required-version?
If major versions differ, it's not compatible.
If they are equal, then any later version is compatible,
with later being determined by a lexicographical comparison of minor numbers."
(let ((x (parse-version provided-version nil))
(y (parse-version required-version nil)))
(and x y (= (car x) (car y)) (lexicographic<= '< (cdr y) (cdr x))))))
;;; Condition control
(with-upgradability ()
(defparameter +simple-condition-format-control-slot+
#+abcl 'system::format-control
#+allegro 'excl::format-control
#+clisp 'system::$format-control
#+clozure 'ccl::format-control
#+(or cmu scl) 'conditions::format-control
#+ecl 'si::format-control
#+(or gcl lispworks) 'conditions::format-string
#+sbcl 'sb-kernel:format-control
#-(or abcl allegro clisp clozure cmu ecl gcl lispworks sbcl scl) nil
"Name of the slot for FORMAT-CONTROL in simple-condition")
(defun match-condition-p (x condition)
"Compare received CONDITION to some pattern X:
a symbol naming a condition class,
a simple vector of length 2, arguments to find-symbol* with result as above,
or a string describing the format-control of a simple-condition."
(etypecase x
(symbol (typep condition x))
((simple-vector 2)
(ignore-errors (typep condition (find-symbol* (svref x 0) (svref x 1) nil))))
(function (funcall x condition))
(string (and (typep condition 'simple-condition)
;; On SBCL, it's always set and the check triggers a warning
#+(or allegro clozure cmu lispworks scl)
(slot-boundp condition +simple-condition-format-control-slot+)
(ignore-errors (equal (simple-condition-format-control condition) x))))))
(defun match-any-condition-p (condition conditions)
"match CONDITION against any of the patterns of CONDITIONS supplied"
(loop :for x :in conditions :thereis (match-condition-p x condition)))
(defun call-with-muffled-conditions (thunk conditions)
(handler-bind ((t #'(lambda (c) (when (match-any-condition-p c conditions)
(muffle-warning c)))))
(funcall thunk)))
(defmacro with-muffled-conditions ((conditions) &body body)
`(call-with-muffled-conditions #'(lambda () ,@body) ,conditions)))
;;;; ---------------------------------------------------------------------------
;;;; Access to the Operating System
(uiop/package:define-package :uiop/os
(:nicknames :asdf/os)
(:recycle :uiop/os :asdf/os :asdf)
(:use :uiop/common-lisp :uiop/package :uiop/utility)
(:export
#:featurep #:os-unix-p #:os-windows-p #:os-genera-p #:detect-os ;; features
#:getenv #:getenvp ;; environment variables
#:implementation-identifier ;; implementation identifier
#:implementation-type #:*implementation-type*
#:operating-system #:architecture #:lisp-version-string
#:hostname #:getcwd #:chdir
;; Windows shortcut support
#:read-null-terminated-string #:read-little-endian
#:parse-file-location-info #:parse-windows-shortcut))
(in-package :uiop/os)
;;; Features
(with-upgradability ()
(defun featurep (x &optional (*features* *features*))
(cond
((atom x) (and (member x *features*) t))
((eq :not (car x)) (assert (null (cddr x))) (not (featurep (cadr x))))
((eq :or (car x)) (some #'featurep (cdr x)))
((eq :and (car x)) (every #'featurep (cdr x)))
(t (error "Malformed feature specification ~S" x))))
(defun os-unix-p ()
(or #+abcl (featurep :unix)
#+(and (not abcl) (or unix cygwin darwin)) t))
(defun os-windows-p ()
(or #+abcl (featurep :windows)
#+(and (not (or abcl unix cygwin darwin)) (or win32 windows mswindows mingw32)) t))
(defun os-genera-p ()
(or #+genera t))
(defun os-oldmac-p ()
(or #+mcl t))
(defun detect-os ()
(loop* :with o
:for (feature . detect) :in '((:os-unix . os-unix-p) (:os-windows . os-windows-p)
(:genera . os-genera-p) (:os-oldmac . os-oldmac-p))
:when (and (not o) (funcall detect)) :do (setf o feature) (pushnew o *features*)
:else :do (setf *features* (remove feature *features*))
:finally
(return (or o (error "Congratulations for trying ASDF on an operating system~%~
that is neither Unix, nor Windows, nor Genera, nor even old MacOS.~%Now you port it.")))))
(detect-os))
;;;; Environment variables: getting them, and parsing them.
(with-upgradability ()
(defun getenv (x)
(declare (ignorable x))
#+(or abcl clisp ecl xcl) (ext:getenv x)
#+allegro (sys:getenv x)
#+clozure (ccl:getenv x)
#+(or cmu scl) (cdr (assoc x ext:*environment-list* :test #'string=))
#+cormanlisp
(let* ((buffer (ct:malloc 1))
(cname (ct:lisp-string-to-c-string x))
(needed-size (win:getenvironmentvariable cname buffer 0))
(buffer1 (ct:malloc (1+ needed-size))))
(prog1 (if (zerop (win:getenvironmentvariable cname buffer1 needed-size))
nil
(ct:c-string-to-lisp-string buffer1))
(ct:free buffer)
(ct:free buffer1)))
#+gcl (system:getenv x)
#+genera nil
#+lispworks (lispworks:environment-variable x)
#+mcl (ccl:with-cstrs ((name x))
(let ((value (_getenv name)))
(unless (ccl:%null-ptr-p value)
(ccl:%get-cstring value))))
#+mkcl (#.(or (find-symbol* 'getenv :si nil) (find-symbol* 'getenv :mk-ext nil)) x)
#+sbcl (sb-ext:posix-getenv x)
#-(or abcl allegro clisp clozure cmu cormanlisp ecl gcl genera lispworks mcl mkcl sbcl scl xcl)
(error "~S is not supported on your implementation" 'getenv))
(defun getenvp (x)
"Predicate that is true if the named variable is present in the libc environment,
then returning the non-empty string value of the variable"
(let ((g (getenv x))) (and (not (emptyp g)) g))))
;;;; implementation-identifier
;;
;; produce a string to identify current implementation.
;; Initially stolen from SLIME's SWANK, completely rewritten since.
;; We're back to runtime checking, for the sake of e.g. ABCL.
(with-upgradability ()
(defun first-feature (feature-sets)
(dolist (x feature-sets)
(multiple-value-bind (short long feature-expr)
(if (consp x)
(values (first x) (second x) (cons :or (rest x)))
(values x x x))
(when (featurep feature-expr)
(return (values short long))))))
(defun implementation-type ()
(first-feature
'(:abcl (:acl :allegro) (:ccl :clozure) :clisp (:corman :cormanlisp)
(:cmu :cmucl :cmu) :ecl :gcl
(:lwpe :lispworks-personal-edition) (:lw :lispworks)
:mcl :mkcl :sbcl :scl (:smbx :symbolics) :xcl)))
(defvar *implementation-type* (implementation-type))
(defun operating-system ()
(first-feature
'(:cygwin (:win :windows :mswindows :win32 :mingw32) ;; try cygwin first!
(:linux :linux :linux-target) ;; for GCL at least, must appear before :bsd
(:macosx :macosx :darwin :darwin-target :apple) ; also before :bsd
(:solaris :solaris :sunos) (:bsd :bsd :freebsd :netbsd :openbsd :dragonfly) :unix
:genera)))
(defun architecture ()
(first-feature
'((:x64 :x86-64 :x86_64 :x8664-target :amd64 (:and :word-size=64 :pc386))
(:x86 :x86 :i386 :i486 :i586 :i686 :pentium3 :pentium4 :pc386 :iapx386 :x8632-target)
(:ppc64 :ppc64 :ppc64-target) (:ppc32 :ppc32 :ppc32-target :ppc :powerpc)
:hppa64 :hppa :sparc64 (:sparc32 :sparc32 :sparc)
:mipsel :mipseb :mips :alpha (:arm :arm :arm-target) :imach
;; Java comes last: if someone uses C via CFFI or otherwise JNA or JNI,
;; we may have to segregate the code still by architecture.
(:java :java :java-1.4 :java-1.5 :java-1.6 :java-1.7))))
#+clozure
(defun ccl-fasl-version ()
;; the fasl version is target-dependent from CCL 1.8 on.
(or (let ((s 'ccl::target-fasl-version))
(and (fboundp s) (funcall s)))
(and (boundp 'ccl::fasl-version)
(symbol-value 'ccl::fasl-version))
(error "Can't determine fasl version.")))
(defun lisp-version-string ()
(let ((s (lisp-implementation-version)))
(car ; as opposed to OR, this idiom prevents some unreachable code warning
(list
#+allegro
(format nil "~A~@[~A~]~@[~A~]~@[~A~]"
excl::*common-lisp-version-number*
;; M means "modern", as opposed to ANSI-compatible mode (which I consider default)
(and (eq excl:*current-case-mode* :case-sensitive-lower) "M")
;; Note if not using International ACL
;; see http://www.franz.com/support/documentation/8.1/doc/operators/excl/ics-target-case.htm
(excl:ics-target-case (:-ics "8"))
(and (member :smp *features*) "S"))
#+armedbear (format nil "~a-fasl~a" s system::*fasl-version*)
#+clisp
(subseq s 0 (position #\space s)) ; strip build information (date, etc.)
#+clozure
(format nil "~d.~d-f~d" ; shorten for windows
ccl::*openmcl-major-version*
ccl::*openmcl-minor-version*
(logand (ccl-fasl-version) #xFF))
#+cmu (substitute #\- #\/ s)
#+scl (format nil "~A~A" s
;; ANSI upper case vs lower case.
(ecase ext:*case-mode* (:upper "") (:lower "l")))
#+ecl (format nil "~A~@[-~A~]" s
(let ((vcs-id (ext:lisp-implementation-vcs-id)))
(subseq vcs-id 0 (min (length vcs-id) 8))))
#+gcl (subseq s (1+ (position #\space s)))
#+genera
(multiple-value-bind (major minor) (sct:get-system-version "System")
(format nil "~D.~D" major minor))
#+mcl (subseq s 8) ; strip the leading "Version "
s))))
(defun implementation-identifier ()
(substitute-if
#\_ #'(lambda (x) (find x " /:;&^\\|?<>(){}[]$#`'\""))
(format nil "~(~a~@{~@[-~a~]~}~)"
(or (implementation-type) (lisp-implementation-type))
(or (lisp-version-string) (lisp-implementation-version))
(or (operating-system) (software-type))
(or (architecture) (machine-type))))))
;;;; Other system information
(with-upgradability ()
(defun hostname ()
;; Note: untested on RMCL
#+(or abcl clozure cmu ecl genera lispworks mcl mkcl sbcl scl xcl) (machine-instance)
#+cormanlisp "localhost" ;; is there a better way? Does it matter?
#+allegro (symbol-call :excl.osi :gethostname)
#+clisp (first (split-string (machine-instance) :separator " "))
#+gcl (system:gethostname)))
;;; Current directory
(with-upgradability ()
#+cmu
(defun parse-unix-namestring* (unix-namestring)
(multiple-value-bind (host device directory name type version)
(lisp::parse-unix-namestring unix-namestring 0 (length unix-namestring))
(make-pathname :host (or host lisp::*unix-host*) :device device
:directory directory :name name :type type :version version)))
(defun getcwd ()
"Get the current working directory as per POSIX getcwd(3), as a pathname object"
(or #+abcl (parse-namestring
(java:jstatic "getProperty" "java.lang.System" "user.dir") :ensure-directory t)
#+allegro (excl::current-directory)
#+clisp (ext:default-directory)
#+clozure (ccl:current-directory)
#+(or cmu scl) (#+cmu parse-unix-namestring* #+scl lisp::parse-unix-namestring
(strcat (nth-value 1 (unix:unix-current-directory)) "/"))
#+cormanlisp (pathname (pl::get-current-directory)) ;; Q: what type does it return?
#+ecl (ext:getcwd)
#+gcl (parse-namestring ;; this is a joke. Isn't there a better way?
(first (symbol-call :uiop :run-program '("/bin/pwd") :output :lines)))
#+genera *default-pathname-defaults* ;; on a Lisp OS, it *is* canonical!
#+lispworks (system:current-directory)
#+mkcl (mk-ext:getcwd)
#+sbcl (sb-ext:parse-native-namestring (sb-unix:posix-getcwd/))
#+xcl (extensions:current-directory)
(error "getcwd not supported on your implementation")))
(defun chdir (x)
"Change current directory, as per POSIX chdir(2), to a given pathname object"
(if-let (x (pathname x))
(or #+abcl (java:jstatic "setProperty" "java.lang.System" "user.dir" (namestring x))
#+allegro (excl:chdir x)
#+clisp (ext:cd x)
#+clozure (setf (ccl:current-directory) x)
#+(or cmu scl) (unix:unix-chdir (ext:unix-namestring x))
#+cormanlisp (unless (zerop (win32::_chdir (namestring x)))
(error "Could not set current directory to ~A" x))
#+ecl (ext:chdir x)
#+genera (setf *default-pathname-defaults* x)
#+lispworks (hcl:change-directory x)
#+mkcl (mk-ext:chdir x)
#+sbcl (symbol-call :sb-posix :chdir (sb-ext:native-namestring x))
(error "chdir not supported on your implementation")))))
;;;; -----------------------------------------------------------------
;;;; Windows shortcut support. Based on:
;;;;
;;;; Jesse Hager: The Windows Shortcut File Format.
;;;; http://www.wotsit.org/list.asp?fc=13
#-(or clisp genera) ; CLISP doesn't need it, and READ-SEQUENCE annoys old Genera.
(with-upgradability ()
(defparameter *link-initial-dword* 76)
(defparameter *link-guid* #(1 20 2 0 0 0 0 0 192 0 0 0 0 0 0 70))
(defun read-null-terminated-string (s)
(with-output-to-string (out)
(loop :for code = (read-byte s)
:until (zerop code)
:do (write-char (code-char code) out))))
(defun read-little-endian (s &optional (bytes 4))
(loop :for i :from 0 :below bytes
:sum (ash (read-byte s) (* 8 i))))
(defun parse-file-location-info (s)
(let ((start (file-position s))
(total-length (read-little-endian s))
(end-of-header (read-little-endian s))
(fli-flags (read-little-endian s))
(local-volume-offset (read-little-endian s))
(local-offset (read-little-endian s))
(network-volume-offset (read-little-endian s))
(remaining-offset (read-little-endian s)))
(declare (ignore total-length end-of-header local-volume-offset))
(unless (zerop fli-flags)
(cond
((logbitp 0 fli-flags)
(file-position s (+ start local-offset)))
((logbitp 1 fli-flags)
(file-position s (+ start
network-volume-offset
#x14))))
(strcat (read-null-terminated-string s)
(progn
(file-position s (+ start remaining-offset))
(read-null-terminated-string s))))))
(defun parse-windows-shortcut (pathname)
(with-open-file (s pathname :element-type '(unsigned-byte 8))
(handler-case
(when (and (= (read-little-endian s) *link-initial-dword*)
(let ((header (make-array (length *link-guid*))))
(read-sequence header s)
(equalp header *link-guid*)))
(let ((flags (read-little-endian s)))
(file-position s 76) ;skip rest of header
(when (logbitp 0 flags)
;; skip shell item id list
(let ((length (read-little-endian s 2)))
(file-position s (+ length (file-position s)))))
(cond
((logbitp 1 flags)
(parse-file-location-info s))
(t
(when (logbitp 2 flags)
;; skip description string
(let ((length (read-little-endian s 2)))
(file-position s (+ length (file-position s)))))
(when (logbitp 3 flags)
;; finally, our pathname
(let* ((length (read-little-endian s 2))
(buffer (make-array length)))
(read-sequence buffer s)
(map 'string #'code-char buffer)))))))
(end-of-file (c)
(declare (ignore c))
nil)))))
;;;; -------------------------------------------------------------------------
;;;; Portability layer around Common Lisp pathnames
;; This layer allows for portable manipulation of pathname objects themselves,
;; which all is necessary prior to any access the filesystem or environment.
(uiop/package:define-package :uiop/pathname
(:nicknames :asdf/pathname)
(:recycle :uiop/pathname :asdf/pathname :asdf)
(:use :uiop/common-lisp :uiop/package :uiop/utility :uiop/os)
(:export
;; Making and merging pathnames, portably
#:normalize-pathname-directory-component #:denormalize-pathname-directory-component
#:merge-pathname-directory-components #:*unspecific-pathname-type* #:make-pathname*
#:make-pathname-component-logical #:make-pathname-logical
#:merge-pathnames*
#:nil-pathname #:*nil-pathname* #:with-pathname-defaults
;; Predicates
#:pathname-equal #:logical-pathname-p #:physical-pathname-p
#:absolute-pathname-p #:relative-pathname-p #:hidden-pathname-p #:file-pathname-p
;; Directories
#:pathname-directory-pathname #:pathname-parent-directory-pathname
#:directory-pathname-p #:ensure-directory-pathname
;; Parsing filenames
#:component-name-to-pathname-components
#:split-name-type #:parse-unix-namestring #:unix-namestring
#:split-unix-namestring-directory-components
;; Absolute and relative pathnames
#:subpathname #:subpathname*
#:ensure-absolute-pathname
#:pathname-root #:pathname-host-pathname
#:subpathp
;; Checking constraints
#:ensure-pathname ;; implemented in filesystem.lisp to accommodate for existence constraints
;; Wildcard pathnames
#:*wild* #:*wild-file* #:*wild-directory* #:*wild-inferiors* #:*wild-path* #:wilden
;; Translate a pathname
#:relativize-directory-component #:relativize-pathname-directory
#:directory-separator-for-host #:directorize-pathname-host-device
#:translate-pathname*
#:*output-translation-function*))
(in-package :uiop/pathname)
;;; Normalizing pathnames across implementations
(with-upgradability ()
(defun normalize-pathname-directory-component (directory)
"Given a pathname directory component, return an equivalent form that is a list"
#+gcl2.6 (setf directory (substitute :back :parent directory))
(cond
#-(or cmu sbcl scl) ;; these implementations already normalize directory components.
((stringp directory) `(:absolute ,directory))
#+gcl2.6
((and (consp directory) (eq :root (first directory)))
`(:absolute ,@(rest directory)))
((or (null directory)
(and (consp directory) (member (first directory) '(:absolute :relative))))
directory)
#+gcl2.6
((consp directory)
`(:relative ,@directory))
(t
(error (compatfmt "~@<Unrecognized pathname directory component ~S~@:>") directory))))
(defun denormalize-pathname-directory-component (directory-component)
#-gcl2.6 directory-component
#+gcl2.6
(let ((d (substitute-if :parent (lambda (x) (member x '(:up :back)))
directory-component)))
(cond
((and (consp d) (eq :relative (first d))) (rest d))
((and (consp d) (eq :absolute (first d))) `(:root ,@(rest d)))
(t d))))
(defun merge-pathname-directory-components (specified defaults)
;; Helper for merge-pathnames* that handles directory components.
(let ((directory (normalize-pathname-directory-component specified)))
(ecase (first directory)
((nil) defaults)
(:absolute specified)
(:relative
(let ((defdir (normalize-pathname-directory-component defaults))
(reldir (cdr directory)))
(cond
((null defdir)
directory)
((not (eq :back (first reldir)))
(append defdir reldir))
(t
(loop :with defabs = (first defdir)
:with defrev = (reverse (rest defdir))
:while (and (eq :back (car reldir))
(or (and (eq :absolute defabs) (null defrev))
(stringp (car defrev))))
:do (pop reldir) (pop defrev)
:finally (return (cons defabs (append (reverse defrev) reldir)))))))))))
;; Giving :unspecific as :type argument to make-pathname is not portable.
;; See CLHS make-pathname and 19.2.2.2.3.
;; This will be :unspecific if supported, or NIL if not.
(defparameter *unspecific-pathname-type*
#+(or abcl allegro clozure cmu gcl genera lispworks mkcl sbcl scl xcl) :unspecific
#+(or clisp ecl #|These haven't been tested:|# cormanlisp mcl) nil)
(defun make-pathname* (&rest keys &key (directory nil #+gcl2.6 directoryp)
host (device () #+allegro devicep) name type version defaults
#+scl &allow-other-keys)
"Takes arguments like CL:MAKE-PATHNAME in the CLHS, and
tries hard to make a pathname that will actually behave as documented,
despite the peculiarities of each implementation"
;; TODO: reimplement defaulting for MCL, whereby an explicit NIL should override the defaults.
(declare (ignorable host device directory name type version defaults))
(apply 'make-pathname
(append
#+allegro (when (and devicep (null device)) `(:device :unspecific))
#+gcl2.6
(when directoryp
`(:directory ,(denormalize-pathname-directory-component directory)))
keys)))
(defun make-pathname-component-logical (x)
"Make a pathname component suitable for use in a logical-pathname"
(typecase x
((eql :unspecific) nil)
#+clisp (string (string-upcase x))
#+clisp (cons (mapcar 'make-pathname-component-logical x))
(t x)))
(defun make-pathname-logical (pathname host)
"Take a PATHNAME's directory, name, type and version components,
and make a new pathname with corresponding components and specified logical HOST"
(make-pathname*
:host host
:directory (make-pathname-component-logical (pathname-directory pathname))
:name (make-pathname-component-logical (pathname-name pathname))
:type (make-pathname-component-logical (pathname-type pathname))
:version (make-pathname-component-logical (pathname-version pathname))))
(defun merge-pathnames* (specified &optional (defaults *default-pathname-defaults*))
"MERGE-PATHNAMES* is like MERGE-PATHNAMES except that
if the SPECIFIED pathname does not have an absolute directory,
then the HOST and DEVICE both come from the DEFAULTS, whereas
if the SPECIFIED pathname does have an absolute directory,
then the HOST and DEVICE both come from the SPECIFIED.
This is what users want on a modern Unix or Windows operating system,
unlike the MERGE-PATHNAME behavior.
Also, if either argument is NIL, then the other argument is returned unmodified;
this is unlike MERGE-PATHNAME which always merges with a pathname,
by default *DEFAULT-PATHNAME-DEFAULTS*, which cannot be NIL."
(when (null specified) (return-from merge-pathnames* defaults))
(when (null defaults) (return-from merge-pathnames* specified))
#+scl
(ext:resolve-pathname specified defaults)
#-scl
(let* ((specified (pathname specified))
(defaults (pathname defaults))
(directory (normalize-pathname-directory-component (pathname-directory specified)))
(name (or (pathname-name specified) (pathname-name defaults)))
(type (or (pathname-type specified) (pathname-type defaults)))
(version (or (pathname-version specified) (pathname-version defaults))))
(labels ((unspecific-handler (p)
(if (typep p 'logical-pathname) #'make-pathname-component-logical #'identity)))
(multiple-value-bind (host device directory unspecific-handler)
(ecase (first directory)
((:absolute)
(values (pathname-host specified)
(pathname-device specified)
directory
(unspecific-handler specified)))
((nil :relative)
(values (pathname-host defaults)
(pathname-device defaults)
(merge-pathname-directory-components directory (pathname-directory defaults))
(unspecific-handler defaults))))
(make-pathname* :host host :device device :directory directory
:name (funcall unspecific-handler name)
:type (funcall unspecific-handler type)
:version (funcall unspecific-handler version))))))
(defun nil-pathname (&optional (defaults *default-pathname-defaults*))
"A pathname that is as neutral as possible for use as defaults
when merging, making or parsing pathnames"
;; 19.2.2.2.1 says a NIL host can mean a default host;
;; see also "valid physical pathname host" in the CLHS glossary, that suggests
;; strings and lists of strings or :unspecific
;; But CMUCL decides to die on NIL.
;; MCL has issues with make-pathname, nil and defaulting
(declare (ignorable defaults))
#.`(make-pathname* :directory nil :name nil :type nil :version nil :device nil
:host (or #+cmu lisp::*unix-host*)
#+scl ,@'(:scheme nil :scheme-specific-part nil
:username nil :password nil :parameters nil :query nil :fragment nil)
;; the default shouldn't matter, but we really want something physical
#-mcl ,@'(:defaults defaults)))
(defvar *nil-pathname* (nil-pathname (translate-logical-pathname (user-homedir-pathname))))
(defmacro with-pathname-defaults ((&optional defaults) &body body)
`(let ((*default-pathname-defaults* ,(or defaults '*nil-pathname*))) ,@body)))
;;; Some pathname predicates
(with-upgradability ()
(defun pathname-equal (p1 p2)
(when (stringp p1) (setf p1 (pathname p1)))
(when (stringp p2) (setf p2 (pathname p2)))
(flet ((normalize-component (x)
(unless (member x '(nil :unspecific :newest (:relative)) :test 'equal)
x)))
(macrolet ((=? (&rest accessors)
(flet ((frob (x)
(reduce 'list (cons 'normalize-component accessors)
:initial-value x :from-end t)))
`(equal ,(frob 'p1) ,(frob 'p2)))))
(or (and (null p1) (null p2))
(and (pathnamep p1) (pathnamep p2)
(and (=? pathname-host)
(=? pathname-device)
(=? normalize-pathname-directory-component pathname-directory)
(=? pathname-name)
(=? pathname-type)
(=? pathname-version)))))))
(defun logical-pathname-p (x)
(typep x 'logical-pathname))
(defun physical-pathname-p (x)
(and (pathnamep x) (not (logical-pathname-p x))))
(defun absolute-pathname-p (pathspec)
"If PATHSPEC is a pathname or namestring object that parses as a pathname
possessing an :ABSOLUTE directory component, return the (parsed) pathname.
Otherwise return NIL"
(and pathspec
(typep pathspec '(or null pathname string))
(let ((pathname (pathname pathspec)))
(and (eq :absolute (car (normalize-pathname-directory-component
(pathname-directory pathname))))
pathname))))
(defun relative-pathname-p (pathspec)
"If PATHSPEC is a pathname or namestring object that parses as a pathname
possessing a :RELATIVE or NIL directory component, return the (parsed) pathname.
Otherwise return NIL"
(and pathspec
(typep pathspec '(or null pathname string))
(let* ((pathname (pathname pathspec))
(directory (normalize-pathname-directory-component
(pathname-directory pathname))))
(when (or (null directory) (eq :relative (car directory)))
pathname))))
(defun hidden-pathname-p (pathname)
"Return a boolean that is true if the pathname is hidden as per Unix style,
i.e. its name starts with a dot."
(and pathname (equal (first-char (pathname-name pathname)) #\.)))
(defun file-pathname-p (pathname)
"Does PATHNAME represent a file, i.e. has a non-null NAME component?
Accepts NIL, a string (converted through PARSE-NAMESTRING) or a PATHNAME.
Note that this does _not_ check to see that PATHNAME points to an
actually-existing file.
Returns the (parsed) PATHNAME when true"
(when pathname
(let* ((pathname (pathname pathname))
(name (pathname-name pathname)))
(when (not (member name '(nil :unspecific "") :test 'equal))
pathname)))))
;;; Directory pathnames
(with-upgradability ()
(defun pathname-directory-pathname (pathname)
"Returns a new pathname with same HOST, DEVICE, DIRECTORY as PATHNAME,
and NIL NAME, TYPE and VERSION components"
(when pathname
(make-pathname :name nil :type nil :version nil :defaults pathname)))
(defun pathname-parent-directory-pathname (pathname)
"Returns a new pathname that corresponds to the parent of the current pathname's directory,
i.e. removing one level of depth in the DIRECTORY component. e.g. if pathname is
Unix pathname /foo/bar/baz/file.type then return /foo/bar/"
(when pathname
(make-pathname* :name nil :type nil :version nil
:directory (merge-pathname-directory-components
'(:relative :back) (pathname-directory pathname))
:defaults pathname)))
(defun directory-pathname-p (pathname)
"Does PATHNAME represent a directory?
A directory-pathname is a pathname _without_ a filename. The three
ways that the filename components can be missing are for it to be NIL,
:UNSPECIFIC or the empty string.
Note that this does _not_ check to see that PATHNAME points to an
actually-existing directory."
(when pathname
(let ((pathname (pathname pathname)))
(flet ((check-one (x)
(member x '(nil :unspecific "") :test 'equal)))
(and (not (wild-pathname-p pathname))
(check-one (pathname-name pathname))
(check-one (pathname-type pathname))
t)))))
(defun ensure-directory-pathname (pathspec &optional (on-error 'error))
"Converts the non-wild pathname designator PATHSPEC to directory form."
(cond
((stringp pathspec)
(ensure-directory-pathname (pathname pathspec)))
((not (pathnamep pathspec))
(call-function on-error (compatfmt "~@<Invalid pathname designator ~S~@:>") pathspec))
((wild-pathname-p pathspec)
(call-function on-error (compatfmt "~@<Can't reliably convert wild pathname ~3i~_~S~@:>") pathspec))
((directory-pathname-p pathspec)
pathspec)
(t
(make-pathname* :directory (append (or (normalize-pathname-directory-component
(pathname-directory pathspec))
(list :relative))
(list (file-namestring pathspec)))
:name nil :type nil :version nil :defaults pathspec)))))
;;; Parsing filenames
(with-upgradability ()
(defun split-unix-namestring-directory-components
(unix-namestring &key ensure-directory dot-dot)
"Splits the path string UNIX-NAMESTRING, returning four values:
A flag that is either :absolute or :relative, indicating
how the rest of the values are to be interpreted.
A directory path --- a list of strings and keywords, suitable for
use with MAKE-PATHNAME when prepended with the flag value.
Directory components with an empty name or the name . are removed.
Any directory named .. is read as DOT-DOT, or :BACK if it's NIL (not :UP).
A last-component, either a file-namestring including type extension,
or NIL in the case of a directory pathname.
A flag that is true iff the unix-style-pathname was just
a file-namestring without / path specification.
ENSURE-DIRECTORY forces the namestring to be interpreted as a directory pathname:
the third return value will be NIL, and final component of the namestring
will be treated as part of the directory path.
An empty string is thus read as meaning a pathname object with all fields nil.
Note that : characters will NOT be interpreted as host specification.
Absolute pathnames are only appropriate on Unix-style systems.
The intention of this function is to support structured component names,
e.g., \(:file \"foo/bar\"\), which will be unpacked to relative pathnames."
(check-type unix-namestring string)
(check-type dot-dot (member nil :back :up))
(if (and (not (find #\/ unix-namestring)) (not ensure-directory)
(plusp (length unix-namestring)))
(values :relative () unix-namestring t)
(let* ((components (split-string unix-namestring :separator "/"))
(last-comp (car (last components))))
(multiple-value-bind (relative components)
(if (equal (first components) "")
(if (equal (first-char unix-namestring) #\/)
(values :absolute (cdr components))
(values :relative nil))
(values :relative components))
(setf components (remove-if #'(lambda (x) (member x '("" ".") :test #'equal))
components))
(setf components (substitute (or dot-dot :back) ".." components :test #'equal))
(cond
((equal last-comp "")
(values relative components nil nil)) ; "" already removed from components
(ensure-directory
(values relative components nil nil))
(t
(values relative (butlast components) last-comp nil)))))))
(defun split-name-type (filename)
"Split a filename into two values NAME and TYPE that are returned.
We assume filename has no directory component.
The last . if any separates name and type from from type,
except that if there is only one . and it is in first position,
the whole filename is the NAME with an empty type.
NAME is always a string.
For an empty type, *UNSPECIFIC-PATHNAME-TYPE* is returned."
(check-type filename string)
(assert (plusp (length filename)))
(destructuring-bind (name &optional (type *unspecific-pathname-type*))
(split-string filename :max 2 :separator ".")
(if (equal name "")
(values filename *unspecific-pathname-type*)
(values name type))))
(defun parse-unix-namestring (name &rest keys &key type defaults dot-dot ensure-directory
&allow-other-keys)
"Coerce NAME into a PATHNAME using standard Unix syntax.
Unix syntax is used whether or not the underlying system is Unix;
on such non-Unix systems it is only usable but for relative pathnames;
but especially to manipulate relative pathnames portably, it is of crucial
to possess a portable pathname syntax independent of the underlying OS.
This is what PARSE-UNIX-NAMESTRING provides, and why we use it in ASDF.
When given a PATHNAME object, just return it untouched.
When given NIL, just return NIL.
When given a non-null SYMBOL, first downcase its name and treat it as a string.
When given a STRING, portably decompose it into a pathname as below.
#\\/ separates directory components.
The last #\\/-separated substring is interpreted as follows:
1- If TYPE is :DIRECTORY or ENSURE-DIRECTORY is true,
the string is made the last directory component, and NAME and TYPE are NIL.
if the string is empty, it's the empty pathname with all slots NIL.
2- If TYPE is NIL, the substring is file-namestring, and its NAME and TYPE
are separated by SPLIT-NAME-TYPE.
3- If TYPE is a string, it is the given TYPE, and the whole string is the NAME.
Directory components with an empty name the name . are removed.
Any directory named .. is read as DOT-DOT,
which must be one of :BACK or :UP and defaults to :BACK.
HOST, DEVICE and VERSION components are taken from DEFAULTS,
which itself defaults to *NIL-PATHNAME*, also used if DEFAULTS in NIL.
No host or device can be specified in the string itself,
which makes it unsuitable for absolute pathnames outside Unix.
For relative pathnames, these components (and hence the defaults) won't matter
if you use MERGE-PATHNAMES* but will matter if you use MERGE-PATHNAMES,
which is an important reason to always use MERGE-PATHNAMES*.
Arbitrary keys are accepted, and the parse result is passed to ENSURE-PATHNAME
with those keys, removing TYPE DEFAULTS and DOT-DOT.
When you're manipulating pathnames that are supposed to make sense portably
even though the OS may not be Unixish, we recommend you use :WANT-RELATIVE T
to throw an error if the pathname is absolute"
(block nil
(check-type type (or null string (eql :directory)))
(when ensure-directory
(setf type :directory))
(etypecase name
((or null pathname) (return name))
(symbol
(setf name (string-downcase name)))
(string))
(multiple-value-bind (relative path filename file-only)
(split-unix-namestring-directory-components
name :dot-dot dot-dot :ensure-directory (eq type :directory))
(multiple-value-bind (name type)
(cond
((or (eq type :directory) (null filename))
(values nil nil))
(type
(values filename type))
(t
(split-name-type filename)))
(apply 'ensure-pathname
(make-pathname*
:directory (unless file-only (cons relative path))
:name name :type type
:defaults (or #-mcl defaults *nil-pathname*))
(remove-plist-keys '(:type :dot-dot :defaults) keys))))))
(defun unix-namestring (pathname)
"Given a non-wild PATHNAME, return a Unix-style namestring for it.
If the PATHNAME is NIL or a STRING, return it unchanged.
This only considers the DIRECTORY, NAME and TYPE components of the pathname.
This is a portable solution for representing relative pathnames,
But unless you are running on a Unix system, it is not a general solution
to representing native pathnames.
An error is signaled if the argument is not NULL, a STRING or a PATHNAME,
or if it is a PATHNAME but some of its components are not recognized."
(etypecase pathname
((or null string) pathname)
(pathname
(with-output-to-string (s)
(flet ((err () (error "Not a valid unix-namestring ~S" pathname)))
(let* ((dir (normalize-pathname-directory-component (pathname-directory pathname)))
(name (pathname-name pathname))
(type (pathname-type pathname))
(type (and (not (eq type :unspecific)) type)))
(cond
((eq dir ()))
((eq dir '(:relative)) (princ "./" s))
((consp dir)
(destructuring-bind (relabs &rest dirs) dir
(or (member relabs '(:relative :absolute)) (err))
(when (eq relabs :absolute) (princ #\/ s))
(loop :for x :in dirs :do
(cond
((member x '(:back :up)) (princ "../" s))
((equal x "") (err))
;;((member x '("." "..") :test 'equal) (err))
((stringp x) (format s "~A/" x))
(t (err))))))
(t (err)))
(cond
(name
(or (and (stringp name) (or (null type) (stringp type))) (err))
(format s "~A~@[.~A~]" name type))
(t
(or (null type) (err)))))))))))
;;; Absolute and relative pathnames
(with-upgradability ()
(defun subpathname (pathname subpath &key type)
"This function takes a PATHNAME and a SUBPATH and a TYPE.
If SUBPATH is already a PATHNAME object (not namestring),
and is an absolute pathname at that, it is returned unchanged;
otherwise, SUBPATH is turned into a relative pathname with given TYPE
as per PARSE-UNIX-NAMESTRING with :WANT-RELATIVE T :TYPE TYPE,
then it is merged with the PATHNAME-DIRECTORY-PATHNAME of PATHNAME."
(or (and (pathnamep subpath) (absolute-pathname-p subpath))
(merge-pathnames* (parse-unix-namestring subpath :type type :want-relative t)
(pathname-directory-pathname pathname))))
(defun subpathname* (pathname subpath &key type)
"returns NIL if the base pathname is NIL, otherwise like SUBPATHNAME."
(and pathname
(subpathname (ensure-directory-pathname pathname) subpath :type type)))
(defun pathname-root (pathname)
(make-pathname* :directory '(:absolute)
:name nil :type nil :version nil
:defaults pathname ;; host device, and on scl, *some*
;; scheme-specific parts: port username password, not others:
. #.(or #+scl '(:parameters nil :query nil :fragment nil))))
(defun pathname-host-pathname (pathname)
(make-pathname* :directory nil
:name nil :type nil :version nil :device nil
:defaults pathname ;; host device, and on scl, *some*
;; scheme-specific parts: port username password, not others:
. #.(or #+scl '(:parameters nil :query nil :fragment nil))))
(defun subpathp (maybe-subpath base-pathname)
(and (pathnamep maybe-subpath) (pathnamep base-pathname)
(absolute-pathname-p maybe-subpath) (absolute-pathname-p base-pathname)
(directory-pathname-p base-pathname) (not (wild-pathname-p base-pathname))
(pathname-equal (pathname-root maybe-subpath) (pathname-root base-pathname))
(with-pathname-defaults ()
(let ((enough (enough-namestring maybe-subpath base-pathname)))
(and (relative-pathname-p enough) (pathname enough))))))
(defun ensure-absolute-pathname (path &optional defaults (on-error 'error))
(cond
((absolute-pathname-p path))
((stringp path) (ensure-absolute-pathname (pathname path) defaults on-error))
((not (pathnamep path)) (call-function on-error "not a valid pathname designator ~S" path))
((let ((default-pathname (if (pathnamep defaults) defaults (call-function defaults))))
(or (if (absolute-pathname-p default-pathname)
(absolute-pathname-p (merge-pathnames* path default-pathname))
(call-function on-error "Default pathname ~S is not an absolute pathname"
default-pathname))
(call-function on-error "Failed to merge ~S with ~S into an absolute pathname"
path default-pathname))))
(t (call-function on-error
"Cannot ensure ~S is evaluated as an absolute pathname with defaults ~S"
path defaults)))))
;;; Wildcard pathnames
(with-upgradability ()
(defparameter *wild* (or #+cormanlisp "*" :wild))
(defparameter *wild-directory-component* (or #+gcl2.6 "*" :wild))
(defparameter *wild-inferiors-component* (or #+gcl2.6 "**" :wild-inferiors))
(defparameter *wild-file*
(make-pathname :directory nil :name *wild* :type *wild*
:version (or #-(or allegro abcl xcl) *wild*)))
(defparameter *wild-directory*
(make-pathname* :directory `(:relative ,*wild-directory-component*)
:name nil :type nil :version nil))
(defparameter *wild-inferiors*
(make-pathname* :directory `(:relative ,*wild-inferiors-component*)
:name nil :type nil :version nil))
(defparameter *wild-path*
(merge-pathnames* *wild-file* *wild-inferiors*))
(defun wilden (path)
(merge-pathnames* *wild-path* path)))
;;; Translate a pathname
(with-upgradability ()
(defun relativize-directory-component (directory-component)
(let ((directory (normalize-pathname-directory-component directory-component)))
(cond
((stringp directory)
(list :relative directory))
((eq (car directory) :absolute)
(cons :relative (cdr directory)))
(t
directory))))
(defun relativize-pathname-directory (pathspec)
(let ((p (pathname pathspec)))
(make-pathname*
:directory (relativize-directory-component (pathname-directory p))
:defaults p)))
(defun directory-separator-for-host (&optional (pathname *default-pathname-defaults*))
(let ((foo (make-pathname* :directory '(:absolute "FOO") :defaults pathname)))
(last-char (namestring foo))))
#-scl
(defun directorize-pathname-host-device (pathname)
#+(or unix abcl)
(when (and #+abcl (os-unix-p) (physical-pathname-p pathname))
(return-from directorize-pathname-host-device pathname))
(let* ((root (pathname-root pathname))
(wild-root (wilden root))
(absolute-pathname (merge-pathnames* pathname root))
(separator (directory-separator-for-host root))
(root-namestring (namestring root))
(root-string
(substitute-if #\/
#'(lambda (x) (or (eql x #\:)
(eql x separator)))
root-namestring)))
(multiple-value-bind (relative path filename)
(split-unix-namestring-directory-components root-string :ensure-directory t)
(declare (ignore relative filename))
(let ((new-base
(make-pathname* :defaults root :directory `(:absolute ,@path))))
(translate-pathname absolute-pathname wild-root (wilden new-base))))))
#+scl
(defun directorize-pathname-host-device (pathname)
(let ((scheme (ext:pathname-scheme pathname))
(host (pathname-host pathname))
(port (ext:pathname-port pathname))
(directory (pathname-directory pathname)))
(flet ((specificp (x) (and x (not (eq x :unspecific)))))
(if (or (specificp port)
(and (specificp host) (plusp (length host)))
(specificp scheme))
(let ((prefix ""))
(when (specificp port)
(setf prefix (format nil ":~D" port)))
(when (and (specificp host) (plusp (length host)))
(setf prefix (strcat host prefix)))
(setf prefix (strcat ":" prefix))
(when (specificp scheme)
(setf prefix (strcat scheme prefix)))
(assert (and directory (eq (first directory) :absolute)))
(make-pathname* :directory `(:absolute ,prefix ,@(rest directory))
:defaults pathname)))
pathname)))
(defun* (translate-pathname*) (path absolute-source destination &optional root source)
(declare (ignore source))
(cond
((functionp destination)
(funcall destination path absolute-source))
((eq destination t)
path)
((not (pathnamep destination))
(error "Invalid destination"))
((not (absolute-pathname-p destination))
(translate-pathname path absolute-source (merge-pathnames* destination root)))
(root
(translate-pathname (directorize-pathname-host-device path) absolute-source destination))
(t
(translate-pathname path absolute-source destination))))
(defvar *output-translation-function* 'identity
"Hook for output translations.
This function needs to be idempotent, so that actions can work
whether their inputs were translated or not,
which they will be if we are composing operations. e.g. if some
create-lisp-op creates a lisp file from some higher-level input,
you need to still be able to use compile-op on that lisp file."))
;;;; -------------------------------------------------------------------------
;;;; Portability layer around Common Lisp filesystem access
(uiop/package:define-package :uiop/filesystem
(:nicknames :asdf/filesystem)
(:recycle :uiop/filesystem :asdf/pathname :asdf)
(:use :uiop/common-lisp :uiop/package :uiop/utility :uiop/os :uiop/pathname)
(:export
;; Native namestrings
#:native-namestring #:parse-native-namestring
;; Probing the filesystem
#:truename* #:safe-file-write-date #:probe-file* #:directory-exists-p #:file-exists-p
#:directory* #:filter-logical-directory-results #:directory-files #:subdirectories
#:collect-sub*directories
;; Resolving symlinks somewhat
#:truenamize #:resolve-symlinks #:*resolve-symlinks* #:resolve-symlinks*
;; merging with cwd
#:get-pathname-defaults #:call-with-current-directory #:with-current-directory
;; Environment pathnames
#:inter-directory-separator #:split-native-pathnames-string
#:getenv-pathname #:getenv-pathnames
#:getenv-absolute-directory #:getenv-absolute-directories
#:lisp-implementation-directory #:lisp-implementation-pathname-p
;; Simple filesystem operations
#:ensure-all-directories-exist
#:rename-file-overwriting-target
#:delete-file-if-exists #:delete-empty-directory #:delete-directory-tree))
(in-package :uiop/filesystem)
;;; Native namestrings, as seen by the operating system calls rather than Lisp
(with-upgradability ()
(defun native-namestring (x)
"From a non-wildcard CL pathname, a return namestring suitable for passing to the operating system"
(when x
(let ((p (pathname x)))
#+clozure (with-pathname-defaults () (ccl:native-translated-namestring p)) ; see ccl bug 978
#+(or cmu scl) (ext:unix-namestring p nil)
#+sbcl (sb-ext:native-namestring p)
#-(or clozure cmu sbcl scl)
(if (os-unix-p) (unix-namestring p)
(namestring p)))))
(defun parse-native-namestring (string &rest constraints &key ensure-directory &allow-other-keys)
"From a native namestring suitable for use by the operating system, return
a CL pathname satisfying all the specified constraints as per ENSURE-PATHNAME"
(check-type string (or string null))
(let* ((pathname
(when string
(with-pathname-defaults ()
#+clozure (ccl:native-to-pathname string)
#+sbcl (sb-ext:parse-native-namestring string)
#-(or clozure sbcl)
(if (os-unix-p)
(parse-unix-namestring string :ensure-directory ensure-directory)
(parse-namestring string)))))
(pathname
(if ensure-directory
(and pathname (ensure-directory-pathname pathname))
pathname)))
(apply 'ensure-pathname pathname constraints))))
;;; Probing the filesystem
(with-upgradability ()
(defun truename* (p)
;; avoids both logical-pathname merging and physical resolution issues
(and p (handler-case (with-pathname-defaults () (truename p)) (file-error () nil))))
(defun safe-file-write-date (pathname)
;; If FILE-WRITE-DATE returns NIL, it's possible that
;; the user or some other agent has deleted an input file.
;; Also, generated files will not exist at the time planning is done
;; and calls compute-action-stamp which calls safe-file-write-date.
;; So it is very possible that we can't get a valid file-write-date,
;; and we can survive and we will continue the planning
;; as if the file were very old.
;; (or should we treat the case in a different, special way?)
(and pathname
(handler-case (file-write-date (translate-logical-pathname pathname))
(file-error () nil))))
(defun probe-file* (p &key truename)
"when given a pathname P (designated by a string as per PARSE-NAMESTRING),
probes the filesystem for a file or directory with given pathname.
If it exists, return its truename is ENSURE-PATHNAME is true,
or the original (parsed) pathname if it is false (the default)."
(with-pathname-defaults () ;; avoids logical-pathname issues on some implementations
(etypecase p
(null nil)
(string (probe-file* (parse-namestring p) :truename truename))
(pathname
(and (not (wild-pathname-p p))
(handler-case
(or
#+allegro
(probe-file p :follow-symlinks truename)
#-(or allegro clisp gcl2.6)
(if truename
(probe-file p)
(ignore-errors
(let ((pp (translate-logical-pathname p)))
(and
#+(or cmu scl) (unix:unix-stat (ext:unix-namestring pp))
#+(and lispworks unix) (system:get-file-stat pp)
#+sbcl (sb-unix:unix-stat (sb-ext:native-namestring pp))
#-(or cmu (and lispworks unix) sbcl scl) (file-write-date pp)
p))))
#+(or clisp gcl2.6)
#.(flet ((probe (probe)
`(let ((foundtrue ,probe))
(cond
(truename foundtrue)
(foundtrue p)))))
#+gcl2.6
(probe '(or (probe-file p)
(and (directory-pathname-p p)
(ignore-errors
(ensure-directory-pathname
(truename* (subpathname
(ensure-directory-pathname p) ".")))))))
#+clisp
(let* ((fs (find-symbol* '#:file-stat :posix nil))
(pp (find-symbol* '#:probe-pathname :ext nil))
(resolve (if pp
`(ignore-errors (,pp p))
'(or (truename* p)
(truename* (ignore-errors (ensure-directory-pathname p)))))))
(if fs
`(if truename
,resolve
(and (ignore-errors (,fs p)) p))
(probe resolve)))))
(file-error () nil)))))))
(defun directory-exists-p (x)
(let ((p (probe-file* x :truename t)))
(and (directory-pathname-p p) p)))
(defun file-exists-p (x)
(let ((p (probe-file* x :truename t)))
(and (file-pathname-p p) p)))
(defun directory* (pathname-spec &rest keys &key &allow-other-keys)
(apply 'directory pathname-spec
(append keys '#.(or #+allegro '(:directories-are-files nil :follow-symbolic-links nil)
#+(or clozure digitool) '(:follow-links nil)
#+clisp '(:circle t :if-does-not-exist :ignore)
#+(or cmu scl) '(:follow-links nil :truenamep nil)
#+sbcl (when (find-symbol* :resolve-symlinks '#:sb-impl nil)
'(:resolve-symlinks nil))))))
(defun filter-logical-directory-results (directory entries merger)
(if (logical-pathname-p directory)
;; Try hard to not resolve logical-pathname into physical pathnames;
;; otherwise logical-pathname users/lovers will be disappointed.
;; If directory* could use some implementation-dependent magic,
;; we will have logical pathnames already; otherwise,
;; we only keep pathnames for which specifying the name and
;; translating the LPN commute.
(loop :for f :in entries
:for p = (or (and (logical-pathname-p f) f)
(let* ((u (ignore-errors (funcall merger f))))
;; The first u avoids a cumbersome (truename u) error.
;; At this point f should already be a truename,
;; but isn't quite in CLISP, for it doesn't have :version :newest
(and u (equal (truename* u) (truename* f)) u)))
:when p :collect p)
entries))
(defun directory-files (directory &optional (pattern *wild-file*))
(let ((dir (pathname directory)))
(when (logical-pathname-p dir)
;; Because of the filtering we do below,
;; logical pathnames have restrictions on wild patterns.
;; Not that the results are very portable when you use these patterns on physical pathnames.
(when (wild-pathname-p dir)
(error "Invalid wild pattern in logical directory ~S" directory))
(unless (member (pathname-directory pattern) '(() (:relative)) :test 'equal)
(error "Invalid file pattern ~S for logical directory ~S" pattern directory))
(setf pattern (make-pathname-logical pattern (pathname-host dir))))
(let* ((pat (merge-pathnames* pattern dir))
(entries (append (ignore-errors (directory* pat))
#+clisp
(when (equal :wild (pathname-type pattern))
(ignore-errors (directory* (make-pathname :type nil :defaults pat)))))))
(filter-logical-directory-results
directory entries
#'(lambda (f)
(make-pathname :defaults dir
:name (make-pathname-component-logical (pathname-name f))
:type (make-pathname-component-logical (pathname-type f))
:version (make-pathname-component-logical (pathname-version f))))))))
(defun subdirectories (directory)
(let* ((directory (ensure-directory-pathname directory))
#-(or abcl cormanlisp genera xcl)
(wild (merge-pathnames*
#-(or abcl allegro cmu lispworks sbcl scl xcl)
*wild-directory*
#+(or abcl allegro cmu lispworks sbcl scl xcl) "*.*"
directory))
(dirs
#-(or abcl cormanlisp genera xcl)
(ignore-errors
(directory* wild . #.(or #+clozure '(:directories t :files nil)
#+mcl '(:directories t))))
#+(or abcl xcl) (system:list-directory directory)
#+cormanlisp (cl::directory-subdirs directory)
#+genera (fs:directory-list directory))
#+(or abcl allegro cmu genera lispworks sbcl scl xcl)
(dirs (loop :for x :in dirs
:for d = #+(or abcl xcl) (extensions:probe-directory x)
#+allegro (excl:probe-directory x)
#+(or cmu sbcl scl) (directory-pathname-p x)
#+genera (getf (cdr x) :directory)
#+lispworks (lw:file-directory-p x)
:when d :collect #+(or abcl allegro xcl) d
#+genera (ensure-directory-pathname (first x))
#+(or cmu lispworks sbcl scl) x)))
(filter-logical-directory-results
directory dirs
(let ((prefix (or (normalize-pathname-directory-component (pathname-directory directory))
'(:absolute)))) ; because allegro returns NIL for #p"FOO:"
#'(lambda (d)
(let ((dir (normalize-pathname-directory-component (pathname-directory d))))
(and (consp dir) (consp (cdr dir))
(make-pathname
:defaults directory :name nil :type nil :version nil
:directory (append prefix (make-pathname-component-logical (last dir)))))))))))
(defun collect-sub*directories (directory collectp recursep collector)
(when (call-function collectp directory)
(call-function collector directory))
(dolist (subdir (subdirectories directory))
(when (call-function recursep subdir)
(collect-sub*directories subdir collectp recursep collector)))))
;;; Resolving symlinks somewhat
(with-upgradability ()
(defun truenamize (pathname)
"Resolve as much of a pathname as possible"
(block nil
(when (typep pathname '(or null logical-pathname)) (return pathname))
(let ((p pathname))
(unless (absolute-pathname-p p)
(setf p (or (absolute-pathname-p (ensure-absolute-pathname p 'get-pathname-defaults nil))
(return p))))
(when (logical-pathname-p p) (return p))
(let ((found (probe-file* p :truename t)))
(when found (return found)))
(let* ((directory (normalize-pathname-directory-component (pathname-directory p)))
(up-components (reverse (rest directory)))
(down-components ()))
(assert (eq :absolute (first directory)))
(loop :while up-components :do
(if-let (parent (probe-file* (make-pathname* :directory `(:absolute ,@(reverse up-components))
:name nil :type nil :version nil :defaults p)))
(return (merge-pathnames* (make-pathname* :directory `(:relative ,@down-components)
:defaults p)
(ensure-directory-pathname parent)))
(push (pop up-components) down-components))
:finally (return p))))))
(defun resolve-symlinks (path)
#-allegro (truenamize path)
#+allegro
(if (physical-pathname-p path)
(or (ignore-errors (excl:pathname-resolve-symbolic-links path)) path)
path))
(defvar *resolve-symlinks* t
"Determine whether or not ASDF resolves symlinks when defining systems.
Defaults to T.")
(defun resolve-symlinks* (path)
(if *resolve-symlinks*
(and path (resolve-symlinks path))
path)))
;;; Check pathname constraints
(with-upgradability ()
(defun ensure-pathname
(pathname &key
on-error
defaults type dot-dot
want-pathname
want-logical want-physical ensure-physical
want-relative want-absolute ensure-absolute ensure-subpath
want-non-wild want-wild wilden
want-file want-directory ensure-directory
want-existing ensure-directories-exist
truename resolve-symlinks truenamize
&aux (p pathname)) ;; mutable working copy, preserve original
"Coerces its argument into a PATHNAME,
optionally doing some transformations and checking specified constraints.
If the argument is NIL, then NIL is returned unless the WANT-PATHNAME constraint is specified.
If the argument is a STRING, it is first converted to a pathname via PARSE-UNIX-NAMESTRING
reusing the keywords DEFAULTS TYPE DOT-DOT ENSURE-DIRECTORY WANT-RELATIVE;
then the result is optionally merged into the DEFAULTS if ENSURE-ABSOLUTE is true,
and the all the checks and transformations are run.
Each non-nil constraint argument can be one of the symbols T, ERROR, CERROR or IGNORE.
The boolean T is an alias for ERROR.
ERROR means that an error will be raised if the constraint is not satisfied.
CERROR means that an continuable error will be raised if the constraint is not satisfied.
IGNORE means just return NIL instead of the pathname.
The ON-ERROR argument, if not NIL, is a function designator (as per CALL-FUNCTION)
that will be called with the the following arguments:
a generic format string for ensure pathname, the pathname,
the keyword argument corresponding to the failed check or transformation,
a format string for the reason ENSURE-PATHNAME failed,
and a list with arguments to that format string.
If ON-ERROR is NIL, ERROR is used instead, which does the right thing.
You could also pass (CERROR \"CONTINUE DESPITE FAILED CHECK\").
The transformations and constraint checks are done in this order,
which is also the order in the lambda-list:
WANT-PATHNAME checks that pathname (after parsing if needed) is not null.
Otherwise, if the pathname is NIL, ensure-pathname returns NIL.
WANT-LOGICAL checks that pathname is a LOGICAL-PATHNAME
WANT-PHYSICAL checks that pathname is not a LOGICAL-PATHNAME
ENSURE-PHYSICAL ensures that pathname is physical via TRANSLATE-LOGICAL-PATHNAME
WANT-RELATIVE checks that pathname has a relative directory component
WANT-ABSOLUTE checks that pathname does have an absolute directory component
ENSURE-ABSOLUTE merges with the DEFAULTS, then checks again
that the result absolute is an absolute pathname indeed.
ENSURE-SUBPATH checks that the pathname is a subpath of the DEFAULTS.
WANT-FILE checks that pathname has a non-nil FILE component
WANT-DIRECTORY checks that pathname has nil FILE and TYPE components
ENSURE-DIRECTORY uses ENSURE-DIRECTORY-PATHNAME to interpret
any file and type components as being actually a last directory component.
WANT-NON-WILD checks that pathname is not a wild pathname
WANT-WILD checks that pathname is a wild pathname
WILDEN merges the pathname with **/*.*.* if it is not wild
WANT-EXISTING checks that a file (or directory) exists with that pathname.
ENSURE-DIRECTORIES-EXIST creates any parent directory with ENSURE-DIRECTORIES-EXIST.
TRUENAME replaces the pathname by its truename, or errors if not possible.
RESOLVE-SYMLINKS replaces the pathname by a variant with symlinks resolved by RESOLVE-SYMLINKS.
TRUENAMIZE uses TRUENAMIZE to resolve as many symlinks as possible."
(block nil
(flet ((report-error (keyword description &rest arguments)
(call-function (or on-error 'error)
"Invalid pathname ~S: ~*~?"
pathname keyword description arguments)))
(macrolet ((err (constraint &rest arguments)
`(report-error ',(intern* constraint :keyword) ,@arguments))
(check (constraint condition &rest arguments)
`(when ,constraint
(unless ,condition (err ,constraint ,@arguments))))
(transform (transform condition expr)
`(when ,transform
(,@(if condition `(when ,condition) '(progn))
(setf p ,expr)))))
(etypecase p
((or null pathname))
(string
(setf p (parse-unix-namestring
p :defaults defaults :type type :dot-dot dot-dot
:ensure-directory ensure-directory :want-relative want-relative))))
(check want-pathname (pathnamep p) "Expected a pathname, not NIL")
(unless (pathnamep p) (return nil))
(check want-logical (logical-pathname-p p) "Expected a logical pathname")
(check want-physical (physical-pathname-p p) "Expected a physical pathname")
(transform ensure-physical () (translate-logical-pathname p))
(check ensure-physical (physical-pathname-p p) "Could not translate to a physical pathname")
(check want-relative (relative-pathname-p p) "Expected a relative pathname")
(check want-absolute (absolute-pathname-p p) "Expected an absolute pathname")
(transform ensure-absolute (not (absolute-pathname-p p))
(ensure-absolute-pathname p defaults (list #'report-error :ensure-absolute "~@?")))
(check ensure-absolute (absolute-pathname-p p)
"Could not make into an absolute pathname even after merging with ~S" defaults)
(check ensure-subpath (absolute-pathname-p defaults)
"cannot be checked to be a subpath of non-absolute pathname ~S" defaults)
(check ensure-subpath (subpathp p defaults) "is not a sub pathname of ~S" defaults)
(check want-file (file-pathname-p p) "Expected a file pathname")
(check want-directory (directory-pathname-p p) "Expected a directory pathname")
(transform ensure-directory (not (directory-pathname-p p)) (ensure-directory-pathname p))
(check want-non-wild (not (wild-pathname-p p)) "Expected a non-wildcard pathname")
(check want-wild (wild-pathname-p p) "Expected a wildcard pathname")
(transform wilden (not (wild-pathname-p p)) (wilden p))
(when want-existing
(let ((existing (probe-file* p :truename truename)))
(if existing
(when truename
(return existing))
(err want-existing "Expected an existing pathname"))))
(when ensure-directories-exist (ensure-directories-exist p))
(when truename
(let ((truename (truename* p)))
(if truename
(return truename)
(err truename "Can't get a truename for pathname"))))
(transform resolve-symlinks () (resolve-symlinks p))
(transform truenamize () (truenamize p))
p)))))
;;; Pathname defaults
(with-upgradability ()
(defun get-pathname-defaults (&optional (defaults *default-pathname-defaults*))
(or (absolute-pathname-p defaults)
(merge-pathnames* defaults (getcwd))))
(defun call-with-current-directory (dir thunk)
(if dir
(let* ((dir (resolve-symlinks* (get-pathname-defaults (pathname-directory-pathname dir))))
(*default-pathname-defaults* dir)
(cwd (getcwd)))
(chdir dir)
(unwind-protect
(funcall thunk)
(chdir cwd)))
(funcall thunk)))
(defmacro with-current-directory ((&optional dir) &body body)
"Call BODY while the POSIX current working directory is set to DIR"
`(call-with-current-directory ,dir #'(lambda () ,@body))))
;;; Environment pathnames
(with-upgradability ()
(defun inter-directory-separator ()
(if (os-unix-p) #\: #\;))
(defun split-native-pathnames-string (string &rest constraints &key &allow-other-keys)
(loop :for namestring :in (split-string string :separator (string (inter-directory-separator)))
:collect (apply 'parse-native-namestring namestring constraints)))
(defun getenv-pathname (x &rest constraints &key ensure-directory want-directory on-error &allow-other-keys)
;; For backward compatibility with ASDF 2, want-directory implies ensure-directory
(apply 'parse-native-namestring (getenvp x)
:ensure-directory (or ensure-directory want-directory)
:on-error (or on-error
`(error "In (~S ~S), invalid pathname ~*~S: ~*~?" getenv-pathname ,x))
constraints))
(defun getenv-pathnames (x &rest constraints &key on-error &allow-other-keys)
(apply 'split-native-pathnames-string (getenvp x)
:on-error (or on-error
`(error "In (~S ~S), invalid pathname ~*~S: ~*~?" getenv-pathnames ,x))
constraints))
(defun getenv-absolute-directory (x)
(getenv-pathname x :want-absolute t :ensure-directory t))
(defun getenv-absolute-directories (x)
(getenv-pathnames x :want-absolute t :ensure-directory t))
(defun lisp-implementation-directory (&key truename)
(declare (ignorable truename))
#+(or clozure ecl gcl mkcl sbcl)
(let ((dir
(ignore-errors
#+clozure #p"ccl:"
#+(or ecl mkcl) #p"SYS:"
#+gcl system::*system-directory*
#+sbcl (if-let (it (find-symbol* :sbcl-homedir-pathname :sb-int nil))
(funcall it)
(getenv-pathname "SBCL_HOME" :ensure-directory t)))))
(if (and dir truename)
(truename* dir)
dir)))
(defun lisp-implementation-pathname-p (pathname)
;; Other builtin systems are those under the implementation directory
(and (when pathname
(if-let (impdir (lisp-implementation-directory))
(or (subpathp pathname impdir)
(when *resolve-symlinks*
(if-let (truename (truename* pathname))
(if-let (trueimpdir (truename* impdir))
(subpathp truename trueimpdir)))))))
t)))
;;; Simple filesystem operations
(with-upgradability ()
(defun ensure-all-directories-exist (pathnames)
(dolist (pathname pathnames)
(when pathname
(ensure-directories-exist (translate-logical-pathname pathname)))))
(defun rename-file-overwriting-target (source target)
#+clisp ;; But for a bug in CLISP 2.48, we should use :if-exists :overwrite and be atomic
(posix:copy-file source target :method :rename)
#-clisp
(rename-file source target
#+clozure :if-exists #+clozure :rename-and-delete))
(defun delete-file-if-exists (x)
(when x (handler-case (delete-file x) (file-error () nil))))
(defun delete-empty-directory (directory-pathname)
"Delete an empty directory"
#+(or abcl digitool gcl) (delete-file directory-pathname)
#+allegro (excl:delete-directory directory-pathname)
#+clisp (ext:delete-directory directory-pathname)
#+clozure (ccl::delete-empty-directory directory-pathname)
#+(or cmu scl) (multiple-value-bind (ok errno)
(unix:unix-rmdir (native-namestring directory-pathname))
(unless ok
#+cmu (error "Error number ~A when trying to delete directory ~A"
errno directory-pathname)
#+scl (error "~@<Error deleting ~S: ~A~@:>"
directory-pathname (unix:get-unix-error-msg errno))))
#+cormanlisp (win32:delete-directory directory-pathname)
#+ecl (si:rmdir directory-pathname)
#+lispworks (lw:delete-directory directory-pathname)
#+mkcl (mkcl:rmdir directory-pathname)
#+sbcl #.(if-let (dd (find-symbol* :delete-directory :sb-ext nil))
`(,dd directory-pathname) ;; requires SBCL 1.0.44 or later
`(progn (require :sb-posix) (symbol-call :sb-posix :rmdir directory-pathname)))
#-(or abcl allegro clisp clozure cmu cormanlisp digitool ecl gcl lispworks sbcl scl)
(error "~S not implemented on ~S" 'delete-empty-directory (implementation-type))) ; genera xcl
(defun delete-directory-tree (directory-pathname &key (validate nil validatep) (if-does-not-exist :error))
"Delete a directory including all its recursive contents, aka rm -rf.
To reduce the risk of infortunate mistakes, DIRECTORY-PATHNAME must be
a physical non-wildcard directory pathname (not namestring).
If the directory does not exist, the IF-DOES-NOT-EXIST argument specifies what happens:
if it is :ERROR (the default), an error is signaled, whereas if it is :IGNORE, nothing is done.
Furthermore, before any deletion is attempted, the DIRECTORY-PATHNAME must pass
the validation function designated (as per ENSURE-FUNCTION) by the VALIDATE keyword argument
which in practice is thus compulsory, and validates by returning a non-NIL result.
If you're suicidal or extremely confident, just use :VALIDATE T."
(check-type if-does-not-exist (member :error :ignore))
(cond
((not (and (pathnamep directory-pathname) (directory-pathname-p directory-pathname)
(physical-pathname-p directory-pathname) (not (wild-pathname-p directory-pathname))))
(error "~S was asked to delete ~S but it is not a physical non-wildcard directory pathname"
'delete-filesystem-tree directory-pathname))
((not validatep)
(error "~S was asked to delete ~S but was not provided a validation predicate"
'delete-filesystem-tree directory-pathname))
((not (call-function validate directory-pathname))
(error "~S was asked to delete ~S but it is not valid ~@[according to ~S~]"
'delete-filesystem-tree directory-pathname validate))
((not (directory-exists-p directory-pathname))
(ecase if-does-not-exist
(:error
(error "~S was asked to delete ~S but the directory does not exist"
'delete-filesystem-tree directory-pathname))
(:ignore nil)))
#-(or allegro cmu clozure sbcl scl)
((os-unix-p) ;; On Unix, don't recursively walk the directory and delete everything in Lisp,
;; except on implementations where we can prevent DIRECTORY from following symlinks;
;; instead spawn a standard external program to do the dirty work.
(symbol-call :uiop :run-program `("rm" "-rf" ,(native-namestring directory-pathname))))
(t
;; On supported implementation, call supported system functions
#+allegro (symbol-call :excl.osi :delete-directory-and-files
directory-pathname :if-does-not-exist if-does-not-exist)
#+clozure (ccl:delete-directory directory-pathname)
#+genera (error "~S not implemented on ~S" 'delete-directory-tree (implementation-type))
#+sbcl #.(if-let (dd (find-symbol* :delete-directory :sb-ext nil))
`(,dd directory-pathname :recursive t) ;; requires SBCL 1.0.44 or later
'(error "~S requires SBCL 1.0.44 or later" 'delete-directory-tree))
;; Outside Unix or on CMUCL and SCL that can avoid following symlinks,
;; do things the hard way.
#-(or allegro clozure genera sbcl)
(let ((sub*directories
(while-collecting (c)
(collect-sub*directories directory-pathname t t #'c))))
(dolist (d (nreverse sub*directories))
(map () 'delete-file (directory-files d))
(delete-empty-directory d)))))))
;;;; ---------------------------------------------------------------------------
;;;; Utilities related to streams
(uiop/package:define-package :uiop/stream
(:nicknames :asdf/stream)
(:recycle :uiop/stream :asdf/stream :asdf)
(:use :uiop/common-lisp :uiop/package :uiop/utility :uiop/os :uiop/pathname :uiop/filesystem)
(:export
#:*default-stream-element-type* #:*stderr* #:setup-stderr
#:detect-encoding #:*encoding-detection-hook* #:always-default-encoding
#:encoding-external-format #:*encoding-external-format-hook* #:default-encoding-external-format
#:*default-encoding* #:*utf-8-external-format*
#:with-safe-io-syntax #:call-with-safe-io-syntax #:safe-read-from-string
#:with-output #:output-string #:with-input
#:with-input-file #:call-with-input-file #:with-output-file #:call-with-output-file
#:finish-outputs #:format! #:safe-format!
#:copy-stream-to-stream #:concatenate-files #:copy-file
#:slurp-stream-string #:slurp-stream-lines #:slurp-stream-line
#:slurp-stream-forms #:slurp-stream-form
#:read-file-string #:read-file-lines #:read-file-forms #:read-file-form #:safe-read-file-form
#:eval-input #:eval-thunk #:standard-eval-thunk
;; Temporary files
#:*temporary-directory* #:temporary-directory #:default-temporary-directory
#:setup-temporary-directory
#:call-with-temporary-file #:with-temporary-file
#:add-pathname-suffix #:tmpize-pathname
#:call-with-staging-pathname #:with-staging-pathname))
(in-package :uiop/stream)
(with-upgradability ()
(defvar *default-stream-element-type* (or #+(or abcl cmu cormanlisp scl xcl) 'character :default)
"default element-type for open (depends on the current CL implementation)")
(defvar *stderr* *error-output*
"the original error output stream at startup")
(defun setup-stderr ()
(setf *stderr*
#+allegro excl::*stderr*
#+clozure ccl::*stderr*
#-(or allegro clozure) *error-output*))
(setup-stderr))
;;; Encodings (mostly hooks only; full support requires asdf-encodings)
(with-upgradability ()
(defparameter *default-encoding*
;; preserve explicit user changes to something other than the legacy default :default
(or (if-let (previous (and (boundp '*default-encoding*) (symbol-value '*default-encoding*)))
(unless (eq previous :default) previous))
:utf-8)
"Default encoding for source files.
The default value :utf-8 is the portable thing.
The legacy behavior was :default.
If you (asdf:load-system :asdf-encodings) then
you will have autodetection via *encoding-detection-hook* below,
reading emacs-style -*- coding: utf-8 -*- specifications,
and falling back to utf-8 or latin1 if nothing is specified.")
(defparameter *utf-8-external-format*
#+(and asdf-unicode (not clisp)) :utf-8
#+(and asdf-unicode clisp) charset:utf-8
#-asdf-unicode :default
"Default :external-format argument to pass to CL:OPEN and also
CL:LOAD or CL:COMPILE-FILE to best process a UTF-8 encoded file.
On modern implementations, this will decode UTF-8 code points as CL characters.
On legacy implementations, it may fall back on some 8-bit encoding,
with non-ASCII code points being read as several CL characters;
hopefully, if done consistently, that won't affect program behavior too much.")
(defun always-default-encoding (pathname)
(declare (ignore pathname))
*default-encoding*)
(defvar *encoding-detection-hook* #'always-default-encoding
"Hook for an extension to define a function to automatically detect a file's encoding")
(defun detect-encoding (pathname)
(if (and pathname (not (directory-pathname-p pathname)) (probe-file* pathname))
(funcall *encoding-detection-hook* pathname)
*default-encoding*))
(defun default-encoding-external-format (encoding)
(case encoding
(:default :default) ;; for backward-compatibility only. Explicit usage discouraged.
(:utf-8 *utf-8-external-format*)
(otherwise
(cerror "Continue using :external-format :default" (compatfmt "~@<Your ASDF component is using encoding ~S but it isn't recognized. Your system should :defsystem-depends-on (:asdf-encodings).~:>") encoding)
:default)))
(defvar *encoding-external-format-hook*
#'default-encoding-external-format
"Hook for an extension to define a mapping between non-default encodings
and implementation-defined external-format's")
(defun encoding-external-format (encoding)
(funcall *encoding-external-format-hook* (or encoding *default-encoding*))))
;;; Safe syntax
(with-upgradability ()
(defvar *standard-readtable* (copy-readtable nil))
(defmacro with-safe-io-syntax ((&key (package :cl)) &body body)
"Establish safe CL reader options around the evaluation of BODY"
`(call-with-safe-io-syntax #'(lambda () (let ((*package* (find-package ,package))) ,@body))))
(defun call-with-safe-io-syntax (thunk &key (package :cl))
(with-standard-io-syntax
(let ((*package* (find-package package))
(*read-default-float-format* 'double-float)
(*print-readably* nil)
(*read-eval* nil))
(funcall thunk))))
(defun safe-read-from-string (string &key (package :cl) (eof-error-p t) eof-value (start 0) end preserve-whitespace)
(with-safe-io-syntax (:package package)
(read-from-string string eof-error-p eof-value :start start :end end :preserve-whitespace preserve-whitespace))))
;;; Output to a stream or string, FORMAT-style
(with-upgradability ()
(defun call-with-output (output function)
"Calls FUNCTION with an actual stream argument,
behaving like FORMAT with respect to how stream designators are interpreted:
If OUTPUT is a stream, use it as the stream.
If OUTPUT is NIL, use a STRING-OUTPUT-STREAM as the stream, and return the resulting string.
If OUTPUT is T, use *STANDARD-OUTPUT* as the stream.
If OUTPUT is a string with a fill-pointer, use it as a string-output-stream.
Otherwise, signal an error."
(etypecase output
(null
(with-output-to-string (stream) (funcall function stream)))
((eql t)
(funcall function *standard-output*))
(stream
(funcall function output))
(string
(assert (fill-pointer output))
(with-output-to-string (stream output) (funcall function stream)))))
(defmacro with-output ((output-var &optional (value output-var)) &body body)
"Bind OUTPUT-VAR to an output stream, coercing VALUE (default: previous binding of OUTPUT-VAR)
as per FORMAT, and evaluate BODY within the scope of this binding."
`(call-with-output ,value #'(lambda (,output-var) ,@body)))
(defun output-string (string &optional output)
"If the desired OUTPUT is not NIL, print the string to the output; otherwise return the string"
(if output
(with-output (output) (princ string output))
string)))
;;; Input helpers
(with-upgradability ()
(defun call-with-input (input function)
"Calls FUNCTION with an actual stream argument, interpreting
stream designators like READ, but also coercing strings to STRING-INPUT-STREAM.
If INPUT is a STREAM, use it as the stream.
If INPUT is NIL, use a *STANDARD-INPUT* as the stream.
If INPUT is T, use *TERMINAL-IO* as the stream.
As an extension, if INPUT is a string, use it as a string-input-stream.
Otherwise, signal an error."
(etypecase input
(null (funcall function *standard-input*))
((eql t) (funcall function *terminal-io*))
(stream (funcall function input))
(string (with-input-from-string (stream input) (funcall function stream)))))
(defmacro with-input ((input-var &optional (value input-var)) &body body)
"Bind INPUT-VAR to an input stream, coercing VALUE (default: previous binding of INPUT-VAR)
as per CALL-WITH-INPUT, and evaluate BODY within the scope of this binding."
`(call-with-input ,value #'(lambda (,input-var) ,@body)))
(defun call-with-input-file (pathname thunk
&key
(element-type *default-stream-element-type*)
(external-format *utf-8-external-format*)
(if-does-not-exist :error))
"Open FILE for input with given recognizes options, call THUNK with the resulting stream.
Other keys are accepted but discarded."
#+gcl2.6 (declare (ignore external-format))
(with-open-file (s pathname :direction :input
:element-type element-type
#-gcl2.6 :external-format #-gcl2.6 external-format
:if-does-not-exist if-does-not-exist)
(funcall thunk s)))
(defmacro with-input-file ((var pathname &rest keys
&key element-type external-format if-does-not-exist)
&body body)
(declare (ignore element-type external-format if-does-not-exist))
`(call-with-input-file ,pathname #'(lambda (,var) ,@body) ,@keys))
(defun call-with-output-file (pathname thunk
&key
(element-type *default-stream-element-type*)
(external-format *utf-8-external-format*)
(if-exists :error)
(if-does-not-exist :create))
"Open FILE for input with given recognizes options, call THUNK with the resulting stream.
Other keys are accepted but discarded."
#+gcl2.6 (declare (ignore external-format))
(with-open-file (s pathname :direction :output
:element-type element-type
#-gcl2.6 :external-format #-gcl2.6 external-format
:if-exists if-exists
:if-does-not-exist if-does-not-exist)
(funcall thunk s)))
(defmacro with-output-file ((var pathname &rest keys
&key element-type external-format if-exists if-does-not-exist)
&body body)
(declare (ignore element-type external-format if-exists if-does-not-exist))
`(call-with-output-file ,pathname #'(lambda (,var) ,@body) ,@keys)))
;;; Ensure output buffers are flushed
(with-upgradability ()
(defun finish-outputs (&rest streams)
"Finish output on the main output streams as well as any specified one.
Useful for portably flushing I/O before user input or program exit."
;; CCL notably buffers its stream output by default.
(dolist (s (append streams
(list *stderr* *error-output* *standard-output* *trace-output*
*debug-io* *terminal-io* *debug-io* *query-io*)))
(ignore-errors (finish-output s)))
(values))
(defun format! (stream format &rest args)
"Just like format, but call finish-outputs before and after the output."
(finish-outputs stream)
(apply 'format stream format args)
(finish-output stream))
(defun safe-format! (stream format &rest args)
(with-safe-io-syntax ()
(ignore-errors (apply 'format! stream format args))
(finish-outputs stream)))) ; just in case format failed
;;; Simple Whole-Stream processing
(with-upgradability ()
(defun copy-stream-to-stream (input output &key element-type buffer-size linewise prefix)
"Copy the contents of the INPUT stream into the OUTPUT stream.
If LINEWISE is true, then read and copy the stream line by line, with an optional PREFIX.
Otherwise, using WRITE-SEQUENCE using a buffer of size BUFFER-SIZE."
(with-open-stream (input input)
(if linewise
(loop* :for (line eof) = (multiple-value-list (read-line input nil nil))
:while line :do
(when prefix (princ prefix output))
(princ line output)
(unless eof (terpri output))
(finish-output output)
(when eof (return)))
(loop
:with buffer-size = (or buffer-size 8192)
:for buffer = (make-array (list buffer-size) :element-type (or element-type 'character))
:for end = (read-sequence buffer input)
:until (zerop end)
:do (write-sequence buffer output :end end)
(when (< end buffer-size) (return))))))
(defun concatenate-files (inputs output)
(with-open-file (o output :element-type '(unsigned-byte 8)
:direction :output :if-exists :rename-and-delete)
(dolist (input inputs)
(with-open-file (i input :element-type '(unsigned-byte 8)
:direction :input :if-does-not-exist :error)
(copy-stream-to-stream i o :element-type '(unsigned-byte 8))))))
(defun copy-file (input output)
;; Not available on LW personal edition or LW 6.0 on Mac: (lispworks:copy-file i f)
(concatenate-files (list input) output))
(defun slurp-stream-string (input &key (element-type 'character))
"Read the contents of the INPUT stream as a string"
(with-open-stream (input input)
(with-output-to-string (output)
(copy-stream-to-stream input output :element-type element-type))))
(defun slurp-stream-lines (input &key count)
"Read the contents of the INPUT stream as a list of lines, return those lines.
Read no more than COUNT lines."
(check-type count (or null integer))
(with-open-stream (input input)
(loop :for n :from 0
:for l = (and (or (not count) (< n count))
(read-line input nil nil))
:while l :collect l)))
(defun slurp-stream-line (input &key (at 0))
"Read the contents of the INPUT stream as a list of lines,
then return the ACCESS-AT of that list of lines using the AT specifier.
PATH defaults to 0, i.e. return the first line.
PATH is typically an integer, or a list of an integer and a function.
If PATH is NIL, it will return all the lines in the file.
The stream will not be read beyond the Nth lines,
where N is the index specified by path
if path is either an integer or a list that starts with an integer."
(access-at (slurp-stream-lines input :count (access-at-count at)) at))
(defun slurp-stream-forms (input &key count)
"Read the contents of the INPUT stream as a list of forms,
and return those forms.
If COUNT is null, read to the end of the stream;
if COUNT is an integer, stop after COUNT forms were read.
BEWARE: be sure to use WITH-SAFE-IO-SYNTAX, or some variant thereof"
(check-type count (or null integer))
(loop :with eof = '#:eof
:for n :from 0
:for form = (if (and count (>= n count))
eof
(read-preserving-whitespace input nil eof))
:until (eq form eof) :collect form))
(defun slurp-stream-form (input &key (at 0))
"Read the contents of the INPUT stream as a list of forms,
then return the ACCESS-AT of these forms following the AT.
AT defaults to 0, i.e. return the first form.
AT is typically a list of integers.
If AT is NIL, it will return all the forms in the file.
The stream will not be read beyond the Nth form,
where N is the index specified by path,
if path is either an integer or a list that starts with an integer.
BEWARE: be sure to use WITH-SAFE-IO-SYNTAX, or some variant thereof"
(access-at (slurp-stream-forms input :count (access-at-count at)) at))
(defun read-file-string (file &rest keys)
"Open FILE with option KEYS, read its contents as a string"
(apply 'call-with-input-file file 'slurp-stream-string keys))
(defun read-file-lines (file &rest keys)
"Open FILE with option KEYS, read its contents as a list of lines
BEWARE: be sure to use WITH-SAFE-IO-SYNTAX, or some variant thereof"
(apply 'call-with-input-file file 'slurp-stream-lines keys))
(defun read-file-forms (file &rest keys &key count &allow-other-keys)
"Open input FILE with option KEYS (except COUNT),
and read its contents as per SLURP-STREAM-FORMS with given COUNT.
BEWARE: be sure to use WITH-SAFE-IO-SYNTAX, or some variant thereof"
(apply 'call-with-input-file file
#'(lambda (input) (slurp-stream-forms input :count count))
(remove-plist-key :count keys)))
(defun read-file-form (file &rest keys &key (at 0) &allow-other-keys)
"Open input FILE with option KEYS (except AT),
and read its contents as per SLURP-STREAM-FORM with given AT specifier.
BEWARE: be sure to use WITH-SAFE-IO-SYNTAX, or some variant thereof"
(apply 'call-with-input-file file
#'(lambda (input) (slurp-stream-form input :at at))
(remove-plist-key :at keys)))
(defun safe-read-file-form (pathname &rest keys &key (package :cl) &allow-other-keys)
"Reads the specified form from the top of a file using a safe standardized syntax.
Extracts the form using READ-FILE-FORM,
within an WITH-SAFE-IO-SYNTAX using the specified PACKAGE."
(with-safe-io-syntax (:package package)
(apply 'read-file-form pathname (remove-plist-key :package keys))))
(defun eval-input (input)
"Portably read and evaluate forms from INPUT, return the last values."
(with-input (input)
(loop :with results :with eof ='#:eof
:for form = (read input nil eof)
:until (eq form eof)
:do (setf results (multiple-value-list (eval form)))
:finally (return (apply 'values results)))))
(defun eval-thunk (thunk)
"Evaluate a THUNK of code:
If a function, FUNCALL it without arguments.
If a constant literal and not a sequence, return it.
If a cons or a symbol, EVAL it.
If a string, repeatedly read and evaluate from it, returning the last values."
(etypecase thunk
((or boolean keyword number character pathname) thunk)
((or cons symbol) (eval thunk))
(function (funcall thunk))
(string (eval-input thunk))))
(defun standard-eval-thunk (thunk &key (package :cl))
"Like EVAL-THUNK, but in a more standardized evaluation context."
;; Note: it's "standard-" not "safe-", because evaluation is never safe.
(when thunk
(with-safe-io-syntax (:package package)
(let ((*read-eval* t))
(eval-thunk thunk))))))
;;; Using temporary files
(with-upgradability ()
(defun default-temporary-directory ()
(or
(when (os-unix-p)
(or (getenv-pathname "TMPDIR" :ensure-directory t)
(parse-native-namestring "/tmp/")))
(when (os-windows-p)
(getenv-pathname "TEMP" :ensure-directory t))
(subpathname (user-homedir-pathname) "tmp/")))
(defvar *temporary-directory* nil)
(defun temporary-directory ()
(or *temporary-directory* (default-temporary-directory)))
(defun setup-temporary-directory ()
(setf *temporary-directory* (default-temporary-directory))
;; basic lack fixed after gcl 2.7.0-61, but ending / required still on 2.7.0-64.1
#+(and gcl (not gcl2.6)) (setf system::*tmp-dir* *temporary-directory*))
(defun call-with-temporary-file
(thunk &key
prefix keep (direction :io)
(element-type *default-stream-element-type*)
(external-format :default))
#+gcl2.6 (declare (ignorable external-format))
(check-type direction (member :output :io))
(loop
:with prefix = (namestring (ensure-absolute-pathname (or prefix "tmp") #'temporary-directory))
:for counter :from (random (ash 1 32))
:for pathname = (pathname (format nil "~A~36R" prefix counter)) :do
;; TODO: on Unix, do something about umask
;; TODO: on Unix, audit the code so we make sure it uses O_CREAT|O_EXCL
;; TODO: on Unix, use CFFI and mkstemp -- but asdf/driver is precisely meant to not depend on CFFI or on anything! Grrrr.
(with-open-file (stream pathname
:direction direction
:element-type element-type
#-gcl2.6 :external-format #-gcl2.6 external-format
:if-exists nil :if-does-not-exist :create)
(when stream
(return
(if keep
(funcall thunk stream pathname)
(unwind-protect
(funcall thunk stream pathname)
(ignore-errors (delete-file pathname)))))))))
(defmacro with-temporary-file ((&key (stream (gensym "STREAM") streamp)
(pathname (gensym "PATHNAME") pathnamep)
prefix keep direction element-type external-format)
&body body)
"Evaluate BODY where the symbols specified by keyword arguments
STREAM and PATHNAME are bound corresponding to a newly created temporary file
ready for I/O. Unless KEEP is specified, delete the file afterwards."
(check-type stream symbol)
(check-type pathname symbol)
`(flet ((think (,stream ,pathname)
,@(unless pathnamep `((declare (ignore ,pathname))))
,@(unless streamp `((when ,stream (close ,stream))))
,@body))
#-gcl (declare (dynamic-extent #'think))
(call-with-temporary-file
#'think
,@(when direction `(:direction ,direction))
,@(when prefix `(:prefix ,prefix))
,@(when keep `(:keep ,keep))
,@(when element-type `(:element-type ,element-type))
,@(when external-format `(:external-format external-format)))))
;; Temporary pathnames in simple cases where no contention is assumed
(defun add-pathname-suffix (pathname suffix)
(make-pathname :name (strcat (pathname-name pathname) suffix)
:defaults pathname))
(defun tmpize-pathname (x)
(add-pathname-suffix x "-ASDF-TMP"))
(defun call-with-staging-pathname (pathname fun)
"Calls fun with a staging pathname, and atomically
renames the staging pathname to the pathname in the end.
Note: this protects only against failure of the program,
not against concurrent attempts.
For the latter case, we ought pick random suffix and atomically open it."
(let* ((pathname (pathname pathname))
(staging (tmpize-pathname pathname)))
(unwind-protect
(multiple-value-prog1
(funcall fun staging)
(rename-file-overwriting-target staging pathname))
(delete-file-if-exists staging))))
(defmacro with-staging-pathname ((pathname-var &optional (pathname-value pathname-var)) &body body)
`(call-with-staging-pathname ,pathname-value #'(lambda (,pathname-var) ,@body))))
;;;; -------------------------------------------------------------------------
;;;; Starting, Stopping, Dumping a Lisp image
(uiop/package:define-package :uiop/image
(:nicknames :asdf/image)
(:recycle :uiop/image :asdf/image :xcvb-driver)
(:use :uiop/common-lisp :uiop/package :uiop/utility :uiop/pathname :uiop/stream :uiop/os)
(:export
#:*image-dumped-p* #:raw-command-line-arguments #:*command-line-arguments*
#:command-line-arguments #:raw-command-line-arguments #:setup-command-line-arguments
#:*lisp-interaction*
#:*fatal-conditions* #:fatal-condition-p #:handle-fatal-condition
#:call-with-fatal-condition-handler #:with-fatal-condition-handler
#:*image-restore-hook* #:*image-prelude* #:*image-entry-point*
#:*image-postlude* #:*image-dump-hook*
#:quit #:die #:raw-print-backtrace #:print-backtrace #:print-condition-backtrace
#:shell-boolean-exit
#:register-image-restore-hook #:register-image-dump-hook
#:call-image-restore-hook #:call-image-dump-hook
#:restore-image #:dump-image #:create-image
))
(in-package :uiop/image)
(with-upgradability ()
(defvar *lisp-interaction* t
"Is this an interactive Lisp environment, or is it batch processing?")
(defvar *command-line-arguments* nil
"Command-line arguments")
(defvar *image-dumped-p* nil ; may matter as to how to get to command-line-arguments
"Is this a dumped image? As a standalone executable?")
(defvar *image-restore-hook* nil
"Functions to call (in reverse order) when the image is restored")
(defvar *image-restored-p* nil
"Has the image been restored? A boolean, or :in-progress while restoring, :in-regress while dumping")
(defvar *image-prelude* nil
"a form to evaluate, or string containing forms to read and evaluate
when the image is restarted, but before the entry point is called.")
(defvar *image-entry-point* nil
"a function with which to restart the dumped image when execution is restored from it.")
(defvar *image-postlude* nil
"a form to evaluate, or string containing forms to read and evaluate
before the image dump hooks are called and before the image is dumped.")
(defvar *image-dump-hook* nil
"Functions to call (in order) when before an image is dumped")
(defvar *fatal-conditions* '(error)
"conditions that cause the Lisp image to enter the debugger if interactive,
or to die if not interactive"))
;;; Exiting properly or im-
(with-upgradability ()
(defun quit (&optional (code 0) (finish-output t))
"Quits from the Lisp world, with the given exit status if provided.
This is designed to abstract away the implementation specific quit forms."
(when finish-output ;; essential, for ClozureCL, and for standard compliance.
(finish-outputs))
#+(or abcl xcl) (ext:quit :status code)
#+allegro (excl:exit code :quiet t)
#+clisp (ext:quit code)
#+clozure (ccl:quit code)
#+cormanlisp (win32:exitprocess code)
#+(or cmu scl) (unix:unix-exit code)
#+ecl (si:quit code)
#+gcl (lisp:quit code)
#+genera (error "You probably don't want to Halt the Machine. (code: ~S)" code)
#+lispworks (lispworks:quit :status code :confirm nil :return nil :ignore-errors-p t)
#+mcl (progn code (ccl:quit)) ;; or should we use FFI to call libc's exit(3) ?
#+mkcl (mk-ext:quit :exit-code code)
#+sbcl #.(let ((exit (find-symbol* :exit :sb-ext nil))
(quit (find-symbol* :quit :sb-ext nil)))
(cond
(exit `(,exit :code code :abort (not finish-output)))
(quit `(,quit :unix-status code :recklessly-p (not finish-output)))))
#-(or abcl allegro clisp clozure cmu ecl gcl genera lispworks mcl mkcl sbcl scl xcl)
(error "~S called with exit code ~S but there's no quitting on this implementation" 'quit code))
(defun die (code format &rest arguments)
"Die in error with some error message"
(with-safe-io-syntax ()
(ignore-errors
(format! *stderr* "~&~?~&" format arguments)))
(quit code))
(defun raw-print-backtrace (&key (stream *debug-io*) count)
"Print a backtrace, directly accessing the implementation"
(declare (ignorable stream count))
#+abcl
(let ((*debug-io* stream)) (top-level::backtrace-command count))
#+allegro
(let ((*terminal-io* stream)
(*standard-output* stream)
(tpl:*zoom-print-circle* *print-circle*)
(tpl:*zoom-print-level* *print-level*)
(tpl:*zoom-print-length* *print-length*))
(tpl:do-command "zoom"
:from-read-eval-print-loop nil
:count t
:all t))
#+clisp
(system::print-backtrace :out stream :limit count)
#+(or clozure mcl)
(let ((*debug-io* stream))
#+clozure (ccl:print-call-history :count count :start-frame-number 1)
#+mcl (ccl:print-call-history :detailed-p nil)
(finish-output stream))
#+(or cmu scl)
(let ((debug:*debug-print-level* *print-level*)
(debug:*debug-print-length* *print-length*))
(debug:backtrace most-positive-fixnum stream))
#+ecl
(si::tpl-backtrace)
#+lispworks
(let ((dbg::*debugger-stack*
(dbg::grab-stack nil :how-many (or count most-positive-fixnum)))
(*debug-io* stream)
(dbg:*debug-print-level* *print-level*)
(dbg:*debug-print-length* *print-length*))
(dbg:bug-backtrace nil))
#+sbcl
(sb-debug:backtrace
#.(if (find-symbol* "*VERBOSITY*" "SB-DEBUG" nil) :stream '(or count most-positive-fixnum))
stream))
(defun print-backtrace (&rest keys &key stream count)
(declare (ignore stream count))
(with-safe-io-syntax (:package :cl)
(let ((*print-readably* nil)
(*print-circle* t)
(*print-miser-width* 75)
(*print-length* nil)
(*print-level* nil)
(*print-pretty* t))
(ignore-errors (apply 'raw-print-backtrace keys)))))
(defun print-condition-backtrace (condition &key (stream *stderr*) count)
;; We print the condition *after* the backtrace,
;; for the sake of who sees the backtrace at a terminal.
;; It is up to the caller to print the condition *before*, with some context.
(print-backtrace :stream stream :count count)
(when condition
(safe-format! stream "~&Above backtrace due to this condition:~%~A~&"
condition)))
(defun fatal-condition-p (condition)
(match-any-condition-p condition *fatal-conditions*))
(defun handle-fatal-condition (condition)
"Depending on whether *LISP-INTERACTION* is set, enter debugger or die"
(cond
(*lisp-interaction*
(invoke-debugger condition))
(t
(safe-format! *stderr* "~&Fatal condition:~%~A~%" condition)
(print-condition-backtrace condition :stream *stderr*)
(die 99 "~A" condition))))
(defun call-with-fatal-condition-handler (thunk)
(handler-bind (((satisfies fatal-condition-p) #'handle-fatal-condition))
(funcall thunk)))
(defmacro with-fatal-condition-handler ((&optional) &body body)
`(call-with-fatal-condition-handler #'(lambda () ,@body)))
(defun shell-boolean-exit (x)
"Quit with a return code that is 0 iff argument X is true"
(quit (if x 0 1))))
;;; Using image hooks
(with-upgradability ()
(defun register-image-restore-hook (hook &optional (call-now-p t))
(register-hook-function '*image-restore-hook* hook call-now-p))
(defun register-image-dump-hook (hook &optional (call-now-p nil))
(register-hook-function '*image-dump-hook* hook call-now-p))
(defun call-image-restore-hook ()
(call-functions (reverse *image-restore-hook*)))
(defun call-image-dump-hook ()
(call-functions *image-dump-hook*)))
;;; Proper command-line arguments
(with-upgradability ()
(defun raw-command-line-arguments ()
"Find what the actual command line for this process was."
#+abcl ext:*command-line-argument-list* ; Use 1.0.0 or later!
#+allegro (sys:command-line-arguments) ; default: :application t
#+clisp (coerce (ext:argv) 'list)
#+clozure (ccl::command-line-arguments)
#+(or cmu scl) extensions:*command-line-strings*
#+ecl (loop :for i :from 0 :below (si:argc) :collect (si:argv i))
#+gcl si:*command-args*
#+(or genera mcl) nil
#+lispworks sys:*line-arguments-list*
#+sbcl sb-ext:*posix-argv*
#+xcl system:*argv*
#-(or abcl allegro clisp clozure cmu ecl gcl genera lispworks mcl sbcl scl xcl)
(error "raw-command-line-arguments not implemented yet"))
(defun command-line-arguments (&optional (arguments (raw-command-line-arguments)))
"Extract user arguments from command-line invocation of current process.
Assume the calling conventions of a generated script that uses --
if we are not called from a directly executable image."
#+abcl arguments
#-abcl
(let* (#-(or sbcl allegro)
(arguments
(if (eq *image-dumped-p* :executable)
arguments
(member "--" arguments :test 'string-equal))))
(rest arguments)))
(defun setup-command-line-arguments ()
(setf *command-line-arguments* (command-line-arguments)))
(defun restore-image (&key
((:lisp-interaction *lisp-interaction*) *lisp-interaction*)
((:restore-hook *image-restore-hook*) *image-restore-hook*)
((:prelude *image-prelude*) *image-prelude*)
((:entry-point *image-entry-point*) *image-entry-point*)
(if-already-restored '(cerror "RUN RESTORE-IMAGE ANYWAY")))
(when *image-restored-p*
(if if-already-restored
(call-function if-already-restored "Image already ~:[being ~;~]restored" (eq *image-restored-p* t))
(return-from restore-image)))
(with-fatal-condition-handler ()
(setf *image-restored-p* :in-progress)
(call-image-restore-hook)
(standard-eval-thunk *image-prelude*)
(setf *image-restored-p* t)
(let ((results (multiple-value-list
(if *image-entry-point*
(call-function *image-entry-point*)
t))))
(if *lisp-interaction*
(apply 'values results)
(shell-boolean-exit (first results)))))))
;;; Dumping an image
(with-upgradability ()
(defun dump-image (filename &key output-name executable
((:postlude *image-postlude*) *image-postlude*)
((:dump-hook *image-dump-hook*) *image-dump-hook*)
#+clozure prepend-symbols #+clozure (purify t))
(declare (ignorable filename output-name executable))
(setf *image-dumped-p* (if executable :executable t))
(setf *image-restored-p* :in-regress)
(standard-eval-thunk *image-postlude*)
(call-image-dump-hook)
(setf *image-restored-p* nil)
#-(or clisp clozure cmu lispworks sbcl scl)
(when executable
(error "Dumping an executable is not supported on this implementation! Aborting."))
#+allegro
(progn
(sys:resize-areas :global-gc t :pack-heap t :sift-old-areas t :tenure t) ; :new 5000000
(excl:dumplisp :name filename :suppress-allegro-cl-banner t))
#+clisp
(apply #'ext:saveinitmem filename
:quiet t
:start-package *package*
:keep-global-handlers nil
:executable (if executable 0 t) ;--- requires clisp 2.48 or later, still catches --clisp-x
(when executable
(list
;; :parse-options nil ;--- requires a non-standard patch to clisp.
:norc t :script nil :init-function #'restore-image)))
#+clozure
(flet ((dump (prepend-kernel)
(ccl:save-application filename :prepend-kernel prepend-kernel :purify purify
:toplevel-function (when executable #'restore-image))))
;;(setf ccl::*application* (make-instance 'ccl::lisp-development-system))
(if prepend-symbols
(with-temporary-file (:prefix "ccl-symbols-" :direction :output :pathname path)
(require 'elf)
(funcall (fdefinition 'ccl::write-elf-symbols-to-file) path)
(dump path))
(dump t)))
#+(or cmu scl)
(progn
(ext:gc :full t)
(setf ext:*batch-mode* nil)
(setf ext::*gc-run-time* 0)
(apply 'ext:save-lisp filename #+cmu :executable #+cmu t
(when executable '(:init-function restore-image :process-command-line nil))))
#+gcl
(progn
(si::set-hole-size 500) (si::gbc nil) (si::sgc-on t)
(si::save-system filename))
#+lispworks
(if executable
(lispworks:deliver 'restore-image filename 0 :interface nil)
(hcl:save-image filename :environment nil))
#+sbcl
(progn
;;(sb-pcl::precompile-random-code-segments) ;--- it is ugly slow at compile-time (!) when the initial core is a big CLOS program. If you want it, do it yourself
(setf sb-ext::*gc-run-time* 0)
(apply 'sb-ext:save-lisp-and-die filename
:executable t ;--- always include the runtime that goes with the core
(when executable (list :toplevel #'restore-image :save-runtime-options t)))) ;--- only save runtime-options for standalone executables
#-(or allegro clisp clozure cmu gcl lispworks sbcl scl)
(error "Can't ~S ~S: UIOP doesn't support image dumping with ~A.~%"
'dump-image filename (nth-value 1 (implementation-type))))
(defun create-image (destination object-files
&key kind output-name prologue-code epilogue-code
(prelude () preludep) (postlude () postludep)
(entry-point () entry-point-p) build-args)
(declare (ignorable destination object-files kind output-name prologue-code epilogue-code
prelude preludep postlude postludep entry-point entry-point-p build-args))
;; Is it meaningful to run these in the current environment?
;; only if we also track the object files that constitute the "current" image,
;; and otherwise simulate dump-image, including quitting at the end.
#-ecl (error "~S not implemented for your implementation (yet)" 'create-image)
#+ecl
(progn
(check-type kind (member :binary :dll :lib :static-library :program :object :fasl :program))
(apply 'c::builder
kind (pathname destination)
:lisp-files object-files
:init-name (c::compute-init-name (or output-name destination) :kind kind)
:prologue-code prologue-code
:epilogue-code
`(progn
,epilogue-code
,@(when (eq kind :program)
`((setf *image-dumped-p* :executable)
(restore-image ;; default behavior would be (si::top-level)
,@(when preludep `(:prelude ',prelude))
,@(when entry-point-p `(:entry-point ',entry-point))))))
build-args))))
;;; Some universal image restore hooks
(with-upgradability ()
(map () 'register-image-restore-hook
'(setup-temporary-directory setup-stderr setup-command-line-arguments
#+abcl detect-os)))
;;;; -------------------------------------------------------------------------
;;;; run-program initially from xcvb-driver.
(uiop/package:define-package :uiop/run-program
(:nicknames :asdf/run-program)
(:recycle :uiop/run-program :asdf/run-program :xcvb-driver)
(:use :uiop/common-lisp :uiop/utility :uiop/pathname :uiop/os :uiop/filesystem :uiop/stream)
(:export
;;; Escaping the command invocation madness
#:easy-sh-character-p #:escape-sh-token #:escape-sh-command
#:escape-windows-token #:escape-windows-command
#:escape-token #:escape-command
;;; run-program
#:slurp-input-stream
#:run-program
#:subprocess-error
#:subprocess-error-code #:subprocess-error-command #:subprocess-error-process
))
(in-package :uiop/run-program)
;;;; ----- Escaping strings for the shell -----
(with-upgradability ()
(defun requires-escaping-p (token &key good-chars bad-chars)
"Does this token require escaping, given the specification of
either good chars that don't need escaping or bad chars that do need escaping,
as either a recognizing function or a sequence of characters."
(some
(cond
((and good-chars bad-chars)
(error "only one of good-chars and bad-chars can be provided"))
((functionp good-chars)
(complement good-chars))
((functionp bad-chars)
bad-chars)
((and good-chars (typep good-chars 'sequence))
#'(lambda (c) (not (find c good-chars))))
((and bad-chars (typep bad-chars 'sequence))
#'(lambda (c) (find c bad-chars)))
(t (error "requires-escaping-p: no good-char criterion")))
token))
(defun escape-token (token &key stream quote good-chars bad-chars escaper)
"Call the ESCAPER function on TOKEN string if it needs escaping as per
REQUIRES-ESCAPING-P using GOOD-CHARS and BAD-CHARS, otherwise output TOKEN,
using STREAM as output (or returning result as a string if NIL)"
(if (requires-escaping-p token :good-chars good-chars :bad-chars bad-chars)
(with-output (stream)
(apply escaper token stream (when quote `(:quote ,quote))))
(output-string token stream)))
(defun escape-windows-token-within-double-quotes (x &optional s)
"Escape a string token X within double-quotes
for use within a MS Windows command-line, outputing to S."
(labels ((issue (c) (princ c s))
(issue-backslash (n) (loop :repeat n :do (issue #\\))))
(loop
:initially (issue #\") :finally (issue #\")
:with l = (length x) :with i = 0
:for i+1 = (1+ i) :while (< i l) :do
(case (char x i)
((#\") (issue-backslash 1) (issue #\") (setf i i+1))
((#\\)
(let* ((j (and (< i+1 l) (position-if-not
#'(lambda (c) (eql c #\\)) x :start i+1)))
(n (- (or j l) i)))
(cond
((null j)
(issue-backslash (* 2 n)) (setf i l))
((and (< j l) (eql (char x j) #\"))
(issue-backslash (1+ (* 2 n))) (issue #\") (setf i (1+ j)))
(t
(issue-backslash n) (setf i j)))))
(otherwise
(issue (char x i)) (setf i i+1))))))
(defun escape-windows-token (token &optional s)
"Escape a string TOKEN within double-quotes if needed
for use within a MS Windows command-line, outputing to S."
(escape-token token :stream s :bad-chars #(#\space #\tab #\") :quote nil
:escaper 'escape-windows-token-within-double-quotes))
(defun escape-sh-token-within-double-quotes (x s &key (quote t))
"Escape a string TOKEN within double-quotes
for use within a POSIX Bourne shell, outputing to S;
omit the outer double-quotes if key argument :QUOTE is NIL"
(when quote (princ #\" s))
(loop :for c :across x :do
(when (find c "$`\\\"") (princ #\\ s))
(princ c s))
(when quote (princ #\" s)))
(defun easy-sh-character-p (x)
(or (alphanumericp x) (find x "+-_.,%@:/")))
(defun escape-sh-token (token &optional s)
"Escape a string TOKEN within double-quotes if needed
for use within a POSIX Bourne shell, outputing to S."
(escape-token token :stream s :quote #\" :good-chars
#'easy-sh-character-p
:escaper 'escape-sh-token-within-double-quotes))
(defun escape-shell-token (token &optional s)
(cond
((os-unix-p) (escape-sh-token token s))
((os-windows-p) (escape-windows-token token s))))
(defun escape-command (command &optional s
(escaper 'escape-shell-token))
"Given a COMMAND as a list of tokens, return a string of the
spaced, escaped tokens, using ESCAPER to escape."
(etypecase command
(string (output-string command s))
(list (with-output (s)
(loop :for first = t :then nil :for token :in command :do
(unless first (princ #\space s))
(funcall escaper token s))))))
(defun escape-windows-command (command &optional s)
"Escape a list of command-line arguments into a string suitable for parsing
by CommandLineToArgv in MS Windows"
;; http://msdn.microsoft.com/en-us/library/bb776391(v=vs.85).aspx
;; http://msdn.microsoft.com/en-us/library/17w5ykft(v=vs.85).aspx
(escape-command command s 'escape-windows-token))
(defun escape-sh-command (command &optional s)
"Escape a list of command-line arguments into a string suitable for parsing
by /bin/sh in POSIX"
(escape-command command s 'escape-sh-token))
(defun escape-shell-command (command &optional stream)
"Escape a command for the current operating system's shell"
(escape-command command stream 'escape-shell-token)))
;;;; Slurping a stream, typically the output of another program
(with-upgradability ()
(defgeneric slurp-input-stream (processor input-stream &key &allow-other-keys))
#-(or gcl2.6 genera)
(defmethod slurp-input-stream ((function function) input-stream &key &allow-other-keys)
(funcall function input-stream))
(defmethod slurp-input-stream ((list cons) input-stream &key &allow-other-keys)
(apply (first list) (cons input-stream (rest list))))
#-(or gcl2.6 genera)
(defmethod slurp-input-stream ((output-stream stream) input-stream
&key linewise prefix (element-type 'character) buffer-size &allow-other-keys)
(copy-stream-to-stream
input-stream output-stream
:linewise linewise :prefix prefix :element-type element-type :buffer-size buffer-size))
(defmethod slurp-input-stream ((x (eql 'string)) stream &key &allow-other-keys)
(declare (ignorable x))
(slurp-stream-string stream))
(defmethod slurp-input-stream ((x (eql :string)) stream &key &allow-other-keys)
(declare (ignorable x))
(slurp-stream-string stream))
(defmethod slurp-input-stream ((x (eql :lines)) stream &key count &allow-other-keys)
(declare (ignorable x))
(slurp-stream-lines stream :count count))
(defmethod slurp-input-stream ((x (eql :line)) stream &key (at 0) &allow-other-keys)
(declare (ignorable x))
(slurp-stream-line stream :at at))
(defmethod slurp-input-stream ((x (eql :forms)) stream &key count &allow-other-keys)
(declare (ignorable x))
(slurp-stream-forms stream :count count))
(defmethod slurp-input-stream ((x (eql :form)) stream &key (at 0) &allow-other-keys)
(declare (ignorable x))
(slurp-stream-form stream :at at))
(defmethod slurp-input-stream ((x (eql t)) stream &rest keys &key &allow-other-keys)
(declare (ignorable x))
(apply 'slurp-input-stream *standard-output* stream keys))
(defmethod slurp-input-stream ((pathname pathname) input
&key
(element-type *default-stream-element-type*)
(external-format *utf-8-external-format*)
(if-exists :rename-and-delete)
(if-does-not-exist :create)
buffer-size
linewise)
(with-output-file (output pathname
:element-type element-type
:external-format external-format
:if-exists if-exists
:if-does-not-exist if-does-not-exist)
(copy-stream-to-stream
input output
:element-type element-type :buffer-size buffer-size :linewise linewise)))
(defmethod slurp-input-stream (x stream
&key linewise prefix (element-type 'character) buffer-size
&allow-other-keys)
(declare (ignorable stream linewise prefix element-type buffer-size))
(cond
#+(or gcl2.6 genera)
((functionp x) (funcall x stream))
#+(or gcl2.6 genera)
((output-stream-p x)
(copy-stream-to-stream
input-stream output-stream
:linewise linewise :prefix prefix :element-type element-type :buffer-size buffer-size))
(t
(error "Invalid ~S destination ~S" 'slurp-input-stream x)))))
;;;; ----- Running an external program -----
;;; Simple variant of run-program with no input, and capturing output
;;; On some implementations, may output to a temporary file...
(with-upgradability ()
(define-condition subprocess-error (error)
((code :initform nil :initarg :code :reader subprocess-error-code)
(command :initform nil :initarg :command :reader subprocess-error-command)
(process :initform nil :initarg :process :reader subprocess-error-process))
(:report (lambda (condition stream)
(format stream "Subprocess~@[ ~S~]~@[ run with command ~S~] exited with error~@[ code ~D~]"
(subprocess-error-process condition)
(subprocess-error-command condition)
(subprocess-error-code condition)))))
(defun run-program (command
&key output ignore-error-status force-shell
(element-type *default-stream-element-type*)
(external-format :default)
&allow-other-keys)
"Run program specified by COMMAND,
either a list of strings specifying a program and list of arguments,
or a string specifying a shell command (/bin/sh on Unix, CMD.EXE on Windows).
Always call a shell (rather than directly execute the command)
if FORCE-SHELL is specified.
Signal a SUBPROCESS-ERROR if the process wasn't successful (exit-code 0),
unless IGNORE-ERROR-STATUS is specified.
If OUTPUT is either NIL or :INTERACTIVE, then
return the exit status code of the process that was called.
if it was NIL, the output is discarded;
if it was :INTERACTIVE, the output and the input are inherited from the current process.
Otherwise, OUTPUT should be a value that is a suitable first argument to
SLURP-INPUT-STREAM. In this case, RUN-PROGRAM will create a temporary stream
for the program output. The program output, in that stream, will be processed
by SLURP-INPUT-STREAM, according to the using OUTPUT as the first argument.
RUN-PROGRAM will return whatever SLURP-INPUT-STREAM returns. E.g., using
:OUTPUT :STRING will have it return the entire output stream as a string. Use
ELEMENT-TYPE and EXTERNAL-FORMAT for the stream passed to the OUTPUT processor."
;; TODO: The current version does not honor :OUTPUT NIL on Allegro. Setting
;; the :INPUT and :OUTPUT arguments to RUN-SHELL-COMMAND on ACL actually do
;; what :OUTPUT :INTERACTIVE is advertised to do here. To get the behavior
;; specified for :OUTPUT NIL, one would have to grab up the process output
;; into a stream and then throw it on the floor. The consequences of
;; getting this wrong seemed so much worse than having excess output that it
;; is not currently implemented.
;; TODO: specially recognize :output pathname ?
(declare (ignorable ignore-error-status element-type external-format))
#-(or abcl allegro clisp clozure cmu cormanlisp ecl gcl lispworks mcl sbcl scl xcl)
(error "RUN-PROGRAM not implemented for this Lisp")
(labels (#+(or allegro clisp clozure cmu ecl (and lispworks os-unix) sbcl scl)
(run-program (command &key pipe interactive)
"runs the specified command (a list of program and arguments).
If using a pipe, returns two values: process and stream
If not using a pipe, returns one values: the process result;
also, inherits the output stream."
;; NB: these implementations have unix vs windows set at compile-time.
(assert (not (and pipe interactive)))
(let* ((wait (not pipe))
#-(and clisp os-windows)
(command
(etypecase command
#+os-unix (string `("/bin/sh" "-c" ,command))
#+os-unix (list command)
#+os-windows
(string
;; NB: We do NOT add cmd /c here. You might want to.
#+allegro command
;; On ClozureCL for Windows, we assume you are using
;; r15398 or later in 1.9 or later,
;; so that bug 858 is fixed http://trac.clozure.com/ccl/ticket/858
#+clozure (cons "cmd" (strcat "/c " command))
;; NB: On other Windows implementations, this is utterly bogus
;; except in the most trivial cases where no quoting is needed.
;; Use at your own risk.
#-(or allegro clozure) (list "cmd" "/c" command))
#+os-windows
(list
#+(or allegro clozure) (escape-windows-command command)
#-(or allegro clozure) command)))
#+(and clozure os-windows) (command (list command))
(process*
(multiple-value-list
#+allegro
(excl:run-shell-command
#+os-unix (coerce (cons (first command) command) 'vector)
#+os-windows command
:input nil
:output (and pipe :stream) :wait wait
#+os-windows :show-window #+os-windows (and (or (null output) pipe) :hide))
#+clisp
(flet ((run (f &rest args)
(apply f `(,@args :input ,(when interactive :terminal) :wait ,wait :output
,(if pipe :stream :terminal)))))
(etypecase command
#+os-windows (run 'ext:run-shell-command command)
(list (run 'ext:run-program (car command)
:arguments (cdr command)))))
#+lispworks
(system:run-shell-command
(cons "/usr/bin/env" command) ; lispworks wants a full path.
:input interactive :output (or (and pipe :stream) interactive)
:wait wait :save-exit-status (and pipe t))
#+(or clozure cmu ecl sbcl scl)
(#+(or cmu ecl scl) ext:run-program
#+clozure ccl:run-program
#+sbcl sb-ext:run-program
(car command) (cdr command)
:input interactive :wait wait
:output (if pipe :stream t)
. #.(append
#+(or clozure cmu ecl sbcl scl) '(:error t)
;; note: :external-format requires a recent SBCL
#+sbcl '(:search t :external-format external-format)))))
(process
#+allegro (if pipe (third process*) (first process*))
#+ecl (third process*)
#-(or allegro ecl) (first process*))
(stream
(when pipe
#+(or allegro lispworks ecl) (first process*)
#+clisp (first process*)
#+clozure (ccl::external-process-output process)
#+(or cmu scl) (ext:process-output process)
#+sbcl (sb-ext:process-output process))))
(values process stream)))
#+(or allegro clisp clozure cmu ecl (and lispworks os-unix) sbcl scl)
(process-result (process pipe)
(declare (ignorable pipe))
;; 1- wait
#+(and clozure os-unix) (ccl::external-process-wait process)
#+(or cmu scl) (ext:process-wait process)
#+(and ecl os-unix) (ext:external-process-wait process)
#+sbcl (sb-ext:process-wait process)
;; 2- extract result
#+allegro (if pipe (sys:reap-os-subprocess :pid process :wait t) process)
#+clisp process
#+clozure (nth-value 1 (ccl:external-process-status process))
#+(or cmu scl) (ext:process-exit-code process)
#+ecl (nth-value 1 (ext:external-process-status process))
#+lispworks (if pipe (system:pipe-exit-status process :wait t) process)
#+sbcl (sb-ext:process-exit-code process))
(check-result (exit-code process)
#+clisp
(setf exit-code
(typecase exit-code (integer exit-code) (null 0) (t -1)))
(unless (or ignore-error-status
(equal exit-code 0))
(error 'subprocess-error :command command :code exit-code :process process))
exit-code)
(use-run-program ()
#-(or abcl cormanlisp gcl (and lispworks os-windows) mcl mkcl xcl)
(let* ((interactive (eq output :interactive))
(pipe (and output (not interactive))))
(multiple-value-bind (process stream)
(run-program command :pipe pipe :interactive interactive)
(if (and output (not interactive))
(unwind-protect
(slurp-input-stream output stream)
(when stream (close stream))
(check-result (process-result process pipe) process))
(unwind-protect
(check-result
#+(or allegro lispworks) ; when not capturing, returns the exit code!
process
#-(or allegro lispworks) (process-result process pipe)
process))))))
(system-command (command)
(etypecase command
(string (if (os-windows-p) (format nil "cmd /c ~A" command) command))
(list (escape-shell-command
(if (os-unix-p) (cons "exec" command) command)))))
(redirected-system-command (command out)
(format nil (if (os-unix-p) "exec > ~*~A ; ~2:*~A" "~A > ~A")
(system-command command) (native-namestring out)))
(system (command &key interactive)
(declare (ignorable interactive))
#+(or abcl xcl) (ext:run-shell-command command)
#+allegro
(excl:run-shell-command
command
:input nil
:output nil
:error-output :output ; write STDERR to output, too
:wait t
#+os-windows :show-window #+os-windows (unless (or interactive (eq output t)) :hide))
#+(or clisp clozure cmu (and lispworks os-unix) sbcl scl)
(process-result (run-program command :pipe nil :interactive interactive) nil)
#+ecl (ext:system command)
#+cormanlisp (win32:system command)
#+gcl (lisp:system command)
#+(and lispworks os-windows)
(system:call-system-showing-output
command :show-cmd (or interactive (eq output t)) :prefix "" :output-stream nil)
#+mcl (ccl::with-cstrs ((%command command)) (_system %command))
#+mkcl (nth-value 2
(mkcl:run-program #+windows command #+windows ()
#-windows "/bin/sh" (list "-c" command)
:input nil :output nil)))
(call-system (command-string &key interactive)
(check-result (system command-string :interactive interactive) nil))
(use-system ()
(let ((interactive (eq output :interactive)))
(if (and output (not interactive))
(with-temporary-file (:pathname tmp :direction :output)
(call-system (redirected-system-command command tmp))
(with-open-file (stream tmp
:direction :input
:if-does-not-exist :error
:element-type element-type
#-gcl2.6 :external-format #-gcl2.6 external-format)
(slurp-input-stream output stream)))
(call-system (system-command command) :interactive interactive)))))
(if (and (not force-shell)
#+(or clisp ecl) ignore-error-status
#+(or abcl cormanlisp gcl (and lispworks os-windows) mcl mkcl xcl) nil)
(use-run-program)
(use-system)))))
;;;; -------------------------------------------------------------------------
;;;; Support to build (compile and load) Lisp files
(uiop/package:define-package :uiop/lisp-build
(:nicknames :asdf/lisp-build)
(:recycle :uiop/lisp-build :asdf/lisp-build :asdf)
(:use :uiop/common-lisp :uiop/package :uiop/utility
:uiop/os :uiop/pathname :uiop/filesystem :uiop/stream :uiop/image)
(:export
;; Variables
#:*compile-file-warnings-behaviour* #:*compile-file-failure-behaviour*
#:*output-translation-function*
#:*optimization-settings* #:*previous-optimization-settings*
#:compile-condition #:compile-file-error #:compile-warned-error #:compile-failed-error
#:compile-warned-warning #:compile-failed-warning
#:check-lisp-compile-results #:check-lisp-compile-warnings
#:*uninteresting-conditions* #:*uninteresting-compiler-conditions* #:*uninteresting-loader-conditions*
;; Types
#+sbcl #:sb-grovel-unknown-constant-condition
;; Functions & Macros
#:get-optimization-settings #:proclaim-optimization-settings
#:call-with-muffled-compiler-conditions #:with-muffled-compiler-conditions
#:call-with-muffled-loader-conditions #:with-muffled-loader-conditions
#:reify-simple-sexp #:unreify-simple-sexp
#:reify-deferred-warnings #:unreify-deferred-warnings
#:reset-deferred-warnings #:save-deferred-warnings #:check-deferred-warnings
#:with-saved-deferred-warnings #:warnings-file-p #:warnings-file-type #:*warnings-file-type*
#:enable-deferred-warnings-check #:disable-deferred-warnings-check
#:current-lisp-file-pathname #:load-pathname
#:lispize-pathname #:compile-file-type #:call-around-hook
#:compile-file* #:compile-file-pathname*
#:load* #:load-from-string #:combine-fasls)
(:intern #:defaults #:failure-p #:warnings-p #:s #:y #:body))
(in-package :uiop/lisp-build)
(with-upgradability ()
(defvar *compile-file-warnings-behaviour*
(or #+clisp :ignore :warn)
"How should ASDF react if it encounters a warning when compiling a file?
Valid values are :error, :warn, and :ignore.")
(defvar *compile-file-failure-behaviour*
(or #+(or mkcl sbcl) :error #+clisp :ignore :warn)
"How should ASDF react if it encounters a failure (per the ANSI spec of COMPILE-FILE)
when compiling a file, which includes any non-style-warning warning.
Valid values are :error, :warn, and :ignore.
Note that ASDF ALWAYS raises an error if it fails to create an output file when compiling."))
;;; Optimization settings
(with-upgradability ()
(defvar *optimization-settings* nil)
(defvar *previous-optimization-settings* nil)
(defun get-optimization-settings ()
"Get current compiler optimization settings, ready to PROCLAIM again"
#-(or clisp clozure cmu ecl sbcl scl)
(warn "~S does not support ~S. Please help me fix that." 'get-optimization-settings (implementation-type))
#+clozure (ccl:declaration-information 'optimize nil)
#+(or clisp cmu ecl sbcl scl)
(let ((settings '(speed space safety debug compilation-speed #+(or cmu scl) c::brevity)))
#.`(loop :for x :in settings
,@(or #+ecl '(:for v :in '(c::*speed* c::*space* c::*safety* c::*debug*))
#+(or cmu scl) '(:for f :in '(c::cookie-speed c::cookie-space c::cookie-safety c::cookie-debug c::cookie-cspeed c::cookie-brevity)))
:for y = (or #+clisp (gethash x system::*optimize*)
#+(or ecl) (symbol-value v)
#+(or cmu scl) (funcall f c::*default-cookie*)
#+sbcl (cdr (assoc x sb-c::*policy*)))
:when y :collect (list x y))))
(defun proclaim-optimization-settings ()
"Proclaim the optimization settings in *OPTIMIZATION-SETTINGS*"
(proclaim `(optimize ,@*optimization-settings*))
(let ((settings (get-optimization-settings)))
(unless (equal *previous-optimization-settings* settings)
(setf *previous-optimization-settings* settings)))))
;;; Condition control
(with-upgradability ()
#+sbcl
(progn
(defun sb-grovel-unknown-constant-condition-p (c)
(and (typep c 'sb-int:simple-style-warning)
(string-enclosed-p
"Couldn't grovel for "
(simple-condition-format-control c)
" (unknown to the C compiler).")))
(deftype sb-grovel-unknown-constant-condition ()
'(and style-warning (satisfies sb-grovel-unknown-constant-condition-p))))
(defvar *usual-uninteresting-conditions*
(append
;;#+clozure '(ccl:compiler-warning)
#+cmu '("Deleting unreachable code.")
#+lispworks '("~S being redefined in ~A (previously in ~A)."
"~S defined more than once in ~A.") ;; lispworks gets confused by eval-when.
#+sbcl
'(sb-c::simple-compiler-note
"&OPTIONAL and &KEY found in the same lambda list: ~S"
#+sb-eval sb-kernel:lexical-environment-too-complex
sb-kernel:undefined-alien-style-warning
sb-grovel-unknown-constant-condition ; defined above.
sb-ext:implicit-generic-function-warning ;; Controversial.
sb-int:package-at-variance
sb-kernel:uninteresting-redefinition
;; BEWARE: the below four are controversial to include here.
sb-kernel:redefinition-with-defun
sb-kernel:redefinition-with-defgeneric
sb-kernel:redefinition-with-defmethod
sb-kernel::redefinition-with-defmacro) ; not exported by old SBCLs
'("No generic function ~S present when encountering macroexpansion of defmethod. Assuming it will be an instance of standard-generic-function.")) ;; from closer2mop
"A suggested value to which to set or bind *uninteresting-conditions*.")
(defvar *uninteresting-conditions* '()
"Conditions that may be skipped while compiling or loading Lisp code.")
(defvar *uninteresting-compiler-conditions* '()
"Additional conditions that may be skipped while compiling Lisp code.")
(defvar *uninteresting-loader-conditions*
(append
'("Overwriting already existing readtable ~S." ;; from named-readtables
#(#:finalizers-off-warning :asdf-finalizers)) ;; from asdf-finalizers
#+clisp '(clos::simple-gf-replacing-method-warning))
"Additional conditions that may be skipped while loading Lisp code."))
;;;; ----- Filtering conditions while building -----
(with-upgradability ()
(defun call-with-muffled-compiler-conditions (thunk)
(call-with-muffled-conditions
thunk (append *uninteresting-conditions* *uninteresting-compiler-conditions*)))
(defmacro with-muffled-compiler-conditions ((&optional) &body body)
"Run BODY where uninteresting compiler conditions are muffled"
`(call-with-muffled-compiler-conditions #'(lambda () ,@body)))
(defun call-with-muffled-loader-conditions (thunk)
(call-with-muffled-conditions
thunk (append *uninteresting-conditions* *uninteresting-loader-conditions*)))
(defmacro with-muffled-loader-conditions ((&optional) &body body)
"Run BODY where uninteresting compiler and additional loader conditions are muffled"
`(call-with-muffled-loader-conditions #'(lambda () ,@body))))
;;;; Handle warnings and failures
(with-upgradability ()
(define-condition compile-condition (condition)
((context-format
:initform nil :reader compile-condition-context-format :initarg :context-format)
(context-arguments
:initform nil :reader compile-condition-context-arguments :initarg :context-arguments)
(description
:initform nil :reader compile-condition-description :initarg :description))
(:report (lambda (c s)
(format s (compatfmt "~@<~A~@[ while ~?~]~@:>")
(or (compile-condition-description c) (type-of c))
(compile-condition-context-format c)
(compile-condition-context-arguments c)))))
(define-condition compile-file-error (compile-condition error) ())
(define-condition compile-warned-warning (compile-condition warning) ())
(define-condition compile-warned-error (compile-condition error) ())
(define-condition compile-failed-warning (compile-condition warning) ())
(define-condition compile-failed-error (compile-condition error) ())
(defun check-lisp-compile-warnings (warnings-p failure-p
&optional context-format context-arguments)
(when failure-p
(case *compile-file-failure-behaviour*
(:warn (warn 'compile-failed-warning
:description "Lisp compilation failed"
:context-format context-format
:context-arguments context-arguments))
(:error (error 'compile-failed-error
:description "Lisp compilation failed"
:context-format context-format
:context-arguments context-arguments))
(:ignore nil)))
(when warnings-p
(case *compile-file-warnings-behaviour*
(:warn (warn 'compile-warned-warning
:description "Lisp compilation had style-warnings"
:context-format context-format
:context-arguments context-arguments))
(:error (error 'compile-warned-error
:description "Lisp compilation had style-warnings"
:context-format context-format
:context-arguments context-arguments))
(:ignore nil))))
(defun check-lisp-compile-results (output warnings-p failure-p
&optional context-format context-arguments)
(unless output
(error 'compile-file-error :context-format context-format :context-arguments context-arguments))
(check-lisp-compile-warnings warnings-p failure-p context-format context-arguments)))
;;;; Deferred-warnings treatment, originally implemented by Douglas Katzman.
;;;
;;; To support an implementation, three functions must be implemented:
;;; reify-deferred-warnings unreify-deferred-warnings reset-deferred-warnings
;;; See their respective docstrings.
(with-upgradability ()
(defun reify-simple-sexp (sexp)
(etypecase sexp
(symbol (reify-symbol sexp))
((or number character simple-string pathname) sexp)
(cons (cons (reify-simple-sexp (car sexp)) (reify-simple-sexp (cdr sexp))))
(simple-vector (vector (mapcar 'reify-simple-sexp (coerce sexp 'list))))))
(defun unreify-simple-sexp (sexp)
(etypecase sexp
((or symbol number character simple-string pathname) sexp)
(cons (cons (unreify-simple-sexp (car sexp)) (unreify-simple-sexp (cdr sexp))))
((simple-vector 2) (unreify-symbol sexp))
((simple-vector 1) (coerce (mapcar 'unreify-simple-sexp (aref sexp 0)) 'vector))))
#+clozure
(progn
(defun reify-source-note (source-note)
(when source-note
(with-accessors ((source ccl::source-note-source) (filename ccl:source-note-filename)
(start-pos ccl:source-note-start-pos) (end-pos ccl:source-note-end-pos)) source-note
(declare (ignorable source))
(list :filename filename :start-pos start-pos :end-pos end-pos
#|:source (reify-source-note source)|#))))
(defun unreify-source-note (source-note)
(when source-note
(destructuring-bind (&key filename start-pos end-pos source) source-note
(ccl::make-source-note :filename filename :start-pos start-pos :end-pos end-pos
:source (unreify-source-note source)))))
(defun unsymbolify-function-name (name)
(if-let (setfed (gethash name ccl::%setf-function-name-inverses%))
`(setf ,setfed)
name))
(defun symbolify-function-name (name)
(if (and (consp name) (eq (first name) 'setf))
(let ((setfed (second name)))
(gethash setfed ccl::%setf-function-names%))
name))
(defun reify-function-name (function-name)
(let ((name (or (first function-name) ;; defun: extract the name
(let ((sec (second function-name)))
(or (and (atom sec) sec) ; scoped method: drop scope
(first sec)))))) ; method: keep gf name, drop method specializers
(list name)))
(defun unreify-function-name (function-name)
function-name)
(defun nullify-non-literals (sexp)
(typecase sexp
((or number character simple-string symbol pathname) sexp)
(cons (cons (nullify-non-literals (car sexp))
(nullify-non-literals (cdr sexp))))
(t nil)))
(defun reify-deferred-warning (deferred-warning)
(with-accessors ((warning-type ccl::compiler-warning-warning-type)
(args ccl::compiler-warning-args)
(source-note ccl:compiler-warning-source-note)
(function-name ccl:compiler-warning-function-name)) deferred-warning
(list :warning-type warning-type :function-name (reify-function-name function-name)
:source-note (reify-source-note source-note)
:args (destructuring-bind (fun &rest more)
args
(cons (unsymbolify-function-name fun)
(nullify-non-literals more))))))
(defun unreify-deferred-warning (reified-deferred-warning)
(destructuring-bind (&key warning-type function-name source-note args)
reified-deferred-warning
(make-condition (or (cdr (ccl::assq warning-type ccl::*compiler-whining-conditions*))
'ccl::compiler-warning)
:function-name (unreify-function-name function-name)
:source-note (unreify-source-note source-note)
:warning-type warning-type
:args (destructuring-bind (fun . more) args
(cons (symbolify-function-name fun) more))))))
#+(or cmu scl)
(defun reify-undefined-warning (warning)
;; Extracting undefined-warnings from the compilation-unit
;; To be passed through the above reify/unreify link, it must be a "simple-sexp"
(list*
(c::undefined-warning-kind warning)
(c::undefined-warning-name warning)
(c::undefined-warning-count warning)
(mapcar
#'(lambda (frob)
;; the lexenv slot can be ignored for reporting purposes
`(:enclosing-source ,(c::compiler-error-context-enclosing-source frob)
:source ,(c::compiler-error-context-source frob)
:original-source ,(c::compiler-error-context-original-source frob)
:context ,(c::compiler-error-context-context frob)
:file-name ,(c::compiler-error-context-file-name frob) ; a pathname
:file-position ,(c::compiler-error-context-file-position frob) ; an integer
:original-source-path ,(c::compiler-error-context-original-source-path frob)))
(c::undefined-warning-warnings warning))))
#+sbcl
(defun reify-undefined-warning (warning)
;; Extracting undefined-warnings from the compilation-unit
;; To be passed through the above reify/unreify link, it must be a "simple-sexp"
(list*
(sb-c::undefined-warning-kind warning)
(sb-c::undefined-warning-name warning)
(sb-c::undefined-warning-count warning)
(mapcar
#'(lambda (frob)
;; the lexenv slot can be ignored for reporting purposes
`(:enclosing-source ,(sb-c::compiler-error-context-enclosing-source frob)
:source ,(sb-c::compiler-error-context-source frob)
:original-source ,(sb-c::compiler-error-context-original-source frob)
:context ,(sb-c::compiler-error-context-context frob)
:file-name ,(sb-c::compiler-error-context-file-name frob) ; a pathname
:file-position ,(sb-c::compiler-error-context-file-position frob) ; an integer
:original-source-path ,(sb-c::compiler-error-context-original-source-path frob)))
(sb-c::undefined-warning-warnings warning))))
(defun reify-deferred-warnings ()
"return a portable S-expression, portably readable and writeable in any Common Lisp implementation
using READ within a WITH-SAFE-IO-SYNTAX, that represents the warnings currently deferred by
WITH-COMPILATION-UNIT. One of three functions required for deferred-warnings support in ASDF."
#+allegro
(list :functions-defined excl::.functions-defined.
:functions-called excl::.functions-called.)
#+clozure
(mapcar 'reify-deferred-warning
(if-let (dw ccl::*outstanding-deferred-warnings*)
(let ((mdw (ccl::ensure-merged-deferred-warnings dw)))
(ccl::deferred-warnings.warnings mdw))))
#+(or cmu scl)
(when lisp::*in-compilation-unit*
;; Try to send nothing through the pipe if nothing needs to be accumulated
`(,@(when c::*undefined-warnings*
`((c::*undefined-warnings*
,@(mapcar #'reify-undefined-warning c::*undefined-warnings*))))
,@(loop :for what :in '(c::*compiler-error-count*
c::*compiler-warning-count*
c::*compiler-note-count*)
:for value = (symbol-value what)
:when (plusp value)
:collect `(,what . ,value))))
#+sbcl
(when sb-c::*in-compilation-unit*
;; Try to send nothing through the pipe if nothing needs to be accumulated
`(,@(when sb-c::*undefined-warnings*
`((sb-c::*undefined-warnings*
,@(mapcar #'reify-undefined-warning sb-c::*undefined-warnings*))))
,@(loop :for what :in '(sb-c::*aborted-compilation-unit-count*
sb-c::*compiler-error-count*
sb-c::*compiler-warning-count*
sb-c::*compiler-style-warning-count*
sb-c::*compiler-note-count*)
:for value = (symbol-value what)
:when (plusp value)
:collect `(,what . ,value)))))
(defun unreify-deferred-warnings (reified-deferred-warnings)
"given a S-expression created by REIFY-DEFERRED-WARNINGS, reinstantiate the corresponding
deferred warnings as to be handled at the end of the current WITH-COMPILATION-UNIT.
Handle any warning that has been resolved already,
such as an undefined function that has been defined since.
One of three functions required for deferred-warnings support in ASDF."
(declare (ignorable reified-deferred-warnings))
#+allegro
(destructuring-bind (&key functions-defined functions-called)
reified-deferred-warnings
(setf excl::.functions-defined.
(append functions-defined excl::.functions-defined.)
excl::.functions-called.
(append functions-called excl::.functions-called.)))
#+clozure