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README.txt 2015-06-30 9.3 kB 11 weekly downloads
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=============================================== Download and installation instructions for Cado =============================================== Questions? Ask on the cado forum: https://groups.google.com/forum/#!forum/cadolang PREREQUISITE: we assume you have installed some version of perl >= 5.8, and have the perl interpreter in your path: $ perl --version This is perl, v5.8.9 built for darwin-2level ... Cado is highly portable, and is not particularly sensitive to the perl version. Some cado extension libraries may require additional perl modules, but the base interpreter has no external perl dependencies. After you have verified your perl installation, pick a port from the following list. We will call it "$PORT": {linux, cygwin, nt, macosx, solx86, solsparc} NOTE: the nt distribution requires MKS/NT. The cygwin port is usually a better option for windows. Next, untar or unzip the distribution into a directory. We will call it "$TOOLROOT". For example: cd /tmp tar xvf cado_macosx_1_107.tgz export TOOLROOT TOOLROOT=/tmp/cado_macosx_1_107 Set-up your environment to run Cado. For bash and posix shells: export PERL_LIBPATH export CG_TEMPLATE_PATH PERL_LIBPATH="$TOOLROOT/lib/cmn" CG_TEMPLATE_PATH=".;$TOOLROOT/lib/cmn/templates;$TOOLROOT/lib/cmn/templates/java" PATH="$TOOLROOT/bin/${PORT}:$TOOLROOT/bin/cmn:$PATH For tcsh/csh shells: setenv PERL_LIBPATH "$TOOLROOT/lib/cmn" setenv CG_TEMPLATE_PATH ".;$TOOLROOT/lib/cmn/templates;$TOOLROOT/lib/cmn/templates/java" set path = ( $TOOLROOT/bin/$PORT $TOOLROOT/bin/cmn $path ) They try: % cado -V cado: Version 1.107, 18-Nov-2014. If this works, you are all set up and ready to go. ----- NOTES: ----- o If you are running on another unix variant, pick the linux distribution and recompile the crc binary (you can use any C compiler): gcc -o $TOOLROOT/bin/$PORT/crc $TOOLROOT/bin/$PORT/src/crc.c If you have any trouble with crc on your platform variant, recompile it. Note that cado will still work without the compiled crc, by substituting a perl implementation. However, some operations will be slower - primarily, update operations, since cado uses crc to compare the newly generated result against the previous version. o Here is an instructive way to get the documentation: cado -q %readtemplate thedoc cgdoc.txt %print $thedoc ^D (control-d or EOF to exit interactive interpreter) If this doesn't work, then check your CG_TEMPLATE_PATH setting. o To see the doc the old fashioned way: cat $TOOLROOT/lib/cmn/templates/cgdoc.txt The file cgdoc.txt is the best documentation currently. Keep it handy. o There is also command line help: cado -help ============================================================================ Please feel free to email with any questions: russt (at) releasetools.org. Or join the cadolang mailing list: https://groups.google.com/forum/#!forum/cadolang Twitter hashtag: #cadolang Release date: 06/30/2015 ============================ Version 1.107 Release Notes: ============================ ----------------- Language changes: ----------------- o Added %constant (%const) prefix for assignment statements, which marks variables as immutable: %const foo = xx foo = yy cado: WARNING: line 2: 'foo' is a constant and cannot be modified. o Introduced the empty variable, "$:", useful when you want to apply operators to an empty string. Note that $::some_op and $:some_op will both work (extra colon not required). o Changed semantics for initializing stack vars. Before, "%push stack" would result in %undef stack. Now it pushes an empty string onto the stack. Pushing onto an empty stack now works as well. Note that only an undefined stack has zero elements: %echo $foo ${foo:undef} %echo $foo:stacksize 0 %echo $::stacksize 1 This could have consequences for programs that rely on the previous behavior, where an empty stack was considered to have zero elements. o Added "%pragma xml_indent_element_content", which will nicely indent xml element content. ----------------------- Template macro changes: ----------------------- o Can now use %void inside template macros. o Can now use %pragma statements inside template macros. ------------ Interpreter: ------------ o Added $FORCE_EXIT global variable to force the interpreter to exit after current call-chain is complete. o Change -help and -V command-line options to output to stdout instead of stderr. ---------------------- New standard operators: ---------------------- o Added :__<tag> (double-underscore) operator which will explicitly create short form xml elements, e.g.: %echo $::__br <br/> ----------------- Operator changes: ----------------- o Enhanced :_<tag> op to allow stack variables, where first value on stack is contents, and remaining items are interpreted as xml attributes: %push hh print "hello world\n"; %push hh lang="perl" %echo $hh:_source <source lang="perl">print "hello world\n";</source> o Add feature to :_<tag> op to wrap xml elements having no content to appear as "<element/>", instead of "<element></element>". This is now the default behavior, but can be overridden by "%pragma xml_concise_elements 0". o The :indent be now be applied to the empty var ($:) as a convenience for creating whitespace: %echo Heading$::nl${::indent}Sub-heading Heading Sub-heading Indents applied to empty variables other than $: continue to be ignored. ---------------------------- New Libraries and Templates: ---------------------------- o Added html/html_standard.defs cado library, which has helpers to generate basic html documents: %include html/html_standard.defs o Added the MIT open-source license for srcsign utility. Example: export COPYRIGHT_YEARS=2015 export COPYRIGHT_HOLDER="Open Software, Inc" export PROJECT_LICENSE_FILE=licenses/mit.ltpl signsrc foo.c foo.pl See "signsrc -help" for additional documentation. o Added vmware library, which provides simple operations to interact with vmware ESXi hypervisors and vSphere data centers: %pragma require vmware/vmw_ops.pl PREREQUISITE: you must install VMware Perl SDK in order to use this cado extension. See: https://www.vmware.com/support/developer/viperltoolkit/ I have tested with vSphere 5.5 only. The VMware cado library is not yet comprehensive. The following operators provide a base set of operators for managing credentials, and for gathering information about managed virtual machines: Credentials (uses standard VMware credentials.xml file): :vmw_add_password :vmw_get_password Login/logout (see note below on use of :vmw_needlogin): :vmw_login :vmw_logout :vmw_needlogin Get lists of VM's (caches list once obtained): :vmw_getvmids :vmw_getvms :vmw_findvms Generate VMRC urls from a list of vm moids: :vmw_vmrc_urls Virtual Machine operators: :vmw_vmname :vmw_istemplate :vmw_power_state :vmw_guest_fullname :vmw_guest_run_state :vmw_guest_hostname :vmw_guest_ip :vmw_guest_tools_run_status :vmw_guest_tools_version Status/error operators: :vmw_status :vmw_geterror Example: create credentials entry for user admin, password nimda, on server vcenter: %pragma require vmware/vmw_ops.pl CG_STACK_DELIMITER = , %push args nimda,admin,vcenter,./credentials.xml %void $args:vmw_add_password This will create or add the credentials to ./credentials.xml - a one-time operation. Once you have credentials, you can login and get the vm list in a separate script: %pragma require vmware/vmw_ops.pl #fetch credentials and attempt login: CG_STACK_DELIMITER = , %push args admin,vcenter,./credentials.xml %void $args:vmw_get_password %ifnot $::vmw_login %return -e -s 1 LOGIN FAILED #set up the cache file (required): VMW_VM_CACHE_FILE = ./my_vcenter_cache %export VMW_VM_CACHE_FILE #fetch the vm info: myvmids = $::vmw_getvmids %eecho found $myvmids:stacksize vm's, VM moid list is: %($myvmids:showstack) #show the powerstate of all vm's: loopstack = $myvmids %foreach moid loopstack %echo $moid:vmw_vmname is $moid:vmw_power_state %if $::vmw_logout %eecho logout okay Once you populate the $VMW_VM_CACHE_FILE, you no longer need to login. You can avoid the login by using the :vmw_needlogin operator, which returns false and pre-populates the datacache, if the $VMW_VM_CACHE_FILE is available. For scripts sharing the cache, operations are essentially instantaneous. Simply remove the $VMW_VM_CACHE_FILE to force an update of the cache. ---------- Bug fixes: ---------- o Fixed bug in "%pragma version" - now compares correctly by major,minor version numbers. o The :eq, :ne etc operators were returning nonsense. Now they explicitly return 1 if true, and 0 if false or undefined. o The :substituteliteral (or :sl) operator was failing when '|' was used as a delimiter.
Source: README.txt, updated 2015-06-30

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