Find perl module version from command-line

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RE: Find perl module version from command-line by Fastolfe (Vicar) on Oct 18, 2000 at 02:27 UTC
Things like this are frequently done in conjunction with CPAN lookups. Many people don't realize that the CPAN module itself can be used in your own scripts. You can extend lachoy's example a lot further by using CPAN, at the expense of a lot of time: `#!/usr/bin/perl use CPAN; printf("%-20s %10s %10s\n", "Module", "Installed", "CPAN"); foreach $a (@ARGV) { foreach $mod (CPAN::Shell->expand("Module", $a)){ printf("%-20s %10s %10s %s\n", $mod->id, $mod->inst_version eq "undef" \|\| !defined($mod->inst_version) ? "-" : $mod->inst_version, $mod->cpan_version eq "undef" \|\| !defined($mod->cpan_version) ? "-" : $mod->cpan_version, $mod->uptodate ? "" : "" ); } }` [download] Running with arguments: `DBI /DBD::/` `Module Installed CPAN DBI 1.13 1.14 DBD::ADO 0.14 1.17 * DBD::ASAny - 1.09 * DBD::Adabas - 0.2003 * DBD::Altera - - * DBD::CSV - 0.1024 *` [download] ...etc. Though if all you're interested in is the installed version of modules, you're FAR better off going with lachoy's script, since the code above will rely upon CPAN data, which will require time to fetch, extract and browse.	[reply] [d/l] [select]
RE: Find perl module version from command-line by KM (Priest) on Oct 18, 2000 at 16:53 UTC
This is how I do it for checking one module.. I use CPAN to check multiple: `perl -MMODULE -e 'print $MODULE::VERSION';` [download] Of course, if the module author doesn't put the suggested $VERSION variable in, this won't work :) Cheers, KM	[reply] [d/l]
RE: RE: Find perl module version from command-line by lachoy (Parson) on Oct 18, 2000 at 22:24 UTC
Right! This is what I meant by `perl -e` in my writeup. but I thought it was getting kind of tedious to type this in every time... TMTOWDI.	[reply]
Re: Find perl module version from command-line by jmcnamara (Monsignor) on May 01, 2001 at 16:20 UTC
I was going to post the following to the Snippets section when I came across your nicer version: `perl -le 'eval "require $ARGV[0]" and print ${"$ARGV[0]::VERSION"} +' Module` [download] Your method of printing the version number is cleaner as well: `perl -le 'eval "require $ARGV[0]" and print $ARGV[0]->VERSION' Mod +ule` [download] I'm glad that I searched before posting. ;-) John. --	[reply] [d/l] [select]
Re^2: Find perl module version from command-line by cld (Initiate) on Jan 03, 2008 at 23:27 UTC
When I run the perl script provided by Fastolfe I get some extra output in the results: `dal1:/home/user1 % perlmodver.pl CPAN Module Installed CPAN CPAN: Storable loaded ok (v2.13) Going to read /home/user1/.cpan/Metadata Database was generated on Thu, 03 Jan 2008 05:38:06 GMT CPAN 1.9205 1.9205 dal1:/home/user1 %` [download] Is there a simple way to discard this additional text?	[reply] [d/l]
Re^3: Find perl module version from command-line by naChoZ (Curate) on Jan 04, 2008 at 22:56 UTC
The extra output is being generated by the CPAN module itself. I checked out the code on mine and I don't see any conditionals or anything that could be passed to supress that output. So, the simple answer is to grep for what you want or use `perlmodver.pl CPAN \| tail +5` because I don't think there's much you can do from the perl side that doesn't require putting more effort into it than it's worth. -- naChoZ Therapy is expensive. Popping bubble wrap is cheap. You choose.	[reply] [d/l]


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