From: apeiron <apeiron@bd8105ee-0ff8-0310-8827-fb3f25b6796d>
Date: Sun, 14 Feb 2010 11:25:32 +0000 (+0000)
Subject: Beginning of better docs for --self-contained courtesy of markstos@cpan.org.
X-Git-Tag: 1.006009~49
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=b0c48f8e34169eac29f6f3b662d430a1731439d1;p=p5sagit%2Flocal-lib.git

Beginning of better docs for --self-contained courtesy of markstos@cpan.org.
Also bump the version number immediately so I don't forget to when I release it.

git-svn-id: http://dev.catalyst.perl.org/repos/bast/local-lib/1.000/trunk@8706 bd8105ee-0ff8-0310-8827-fb3f25b6796d
---

diff --git a/Changes b/Changes
index 870aa17..5431661 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision history for local::lib
 
+        - Start of better docs for C<--self-contained> thanks to
+          markstos@cpan.org.
+
 1.004009 2009-11-07
 
         - Fix warning if your $ENV{PERL5LIB} is undef
diff --git a/lib/local/lib.pm b/lib/local/lib.pm
index 128648c..1dd92a7 100644
--- a/lib/local/lib.pm
+++ b/lib/local/lib.pm
@@ -11,7 +11,7 @@ use File::Path ();
 use Carp ();
 use Config;
 
-our $VERSION = '1.004009'; # 1.4.9
+our $VERSION = '1.005000'; # 1.5.0
 my @KNOWN_FLAGS = (qw/--self-contained/);
 
 sub import {
@@ -567,6 +567,26 @@ PATH is appended to, rather than clobbered.
 
 These values are then available for reference by any code after import.
 
+=head1 CREATING A SELF-CONTAINED SET OF MODULES
+
+You can use local::lib to prepare a directory which contains a module and all
+of its non-core dependencies.  The C<--self-contained> option ignores any
+globally installed modules when resolving dependencies, only considering
+modules installed in a "local::lib" directory or provided by core Perl.
+
+A use-case for this feature would be to prepare to deploy a whole "stack" of
+module dependencies on a new machine, even if you have copies of the same
+dependencies installed globally already.
+
+The C<--self-contained> option should be used like this: 
+
+  # Install LWP and *all non-core* dependencies to the 'my_lwp' directory 
+  perl -MCPAN -Mlocal::lib=--self-contained,my_lwp -e 'CPAN::install(LWP)'
+
+Note that some dependencies may involve C-based "XS" code even if your target
+module doesn't. The issue of dealing with XS vs Pure Perl code is beyond the scope
+of what local::lib provides. 
+
 =head1 METHODS
 
 =head2 ensure_directory_structure_for