[Assorted-commits] SF.net SVN: assorted: [524] shell-tools/trunk/src/bash-commons/common.bash

[<yan...@us...>]

Revision: 524
          http://assorted.svn.sourceforge.net/assorted/?rev=524&view=rev
Author:   yangzhang
Date:     2008-02-28 19:31:47 -0800 (Thu, 28 Feb 2008)

Log Message:
-----------
added named, parent-dir (for assorted.bash)

Modified Paths:
--------------
    shell-tools/trunk/src/bash-commons/common.bash

Modified: shell-tools/trunk/src/bash-commons/common.bash
===================================================================
--- shell-tools/trunk/src/bash-commons/common.bash	2008-02-29 03:31:33 UTC (rev 523)
+++ shell-tools/trunk/src/bash-commons/common.bash	2008-02-29 03:31:47 UTC (rev 524)
@@ -350,6 +350,24 @@
   fi
 }
 
+# For use with parent-dir.
+named() {
+  [[ "$( basename "$( realpath "$2" )" )" == "$1" ]] && return 0 || return 1
+}
+
+# Recursively search parent directories until a directory is found that
+# satisfies the given predicate. The predicate is the command formed from the
+# arguments passed in.
+parent-dir() {
+  local dir=.
+  while true ; do
+    if "$@" "$dir" ; then break ; fi
+    if [[ "$( realpath "$dir" )" == / ]] ; then return 1 ; fi
+    dir="$dir/.."
+  done
+  echo "$dir"
+}
+
 is-empty() {
   [[ -f "$1" && "$( stat -c%s "$1" )" == 0 ]]
 }


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