NAME
   lib::abs - "lib" that makes relative path absolute to caller.

SYNOPSIS
   Simple use like "use lib ...":

       use lib::abs qw(./mylibs1 ../mylibs2);
       use lib::abs 'mylibs';

       # if your path may not exists and it is ok, then:
       use lib::abs -soft => qw(./mylibs1 ../mylibs2);

   Extended syntax (glob)

       use lib::abs 'modules/*/lib';

   There are also may be used helper function from lib::abs (see
   example/ex4):

       use lib::abs;
       # ...
       my $path = lib::abs::path('../path/relative/to/me'); # returns absolute path

DESCRIPTION
   The main reason of this library is transformate relative paths to
   absolute at the "BEGIN" stage, and push transformed to @INC. Relative
   path basis is not the current working directory, but the location of
   file, where the statement is (caller file). When using common "lib",
   relative paths stays relative to curernt working directory,

       # For ex:
       # script: /opt/scripts/my.pl
       use lib::abs '../lib';

       # We run `/opt/scripts/my.pl` having cwd /home/mons
       # The @INC will contain '/opt/lib';

       # We run `./my.pl` having cwd /opt
       # The @INC will contain '/opt/lib';

       # We run `../my.pl` having cwd /opt/lib
       # The @INC will contain '/opt/lib';

   Also this module is useful when writing tests, when you want to load
   strictly the module from ../lib, respecting the test file.

       # t/00-test.t
       use lib::abs '../lib';

   Also this is useful, when you running under "mod_perl", use something
   like "Apache::StatINC", and your application may change working
   directory. So in case of chdir "StatINC" fails to reload module if the
   @INC contain relative paths.

RATIONALE
   Q: We already have "FindBin" and "lib", why we need this module?

   A: There are several reasons:

   1) "FindBin" could find path incorrectly under "mod_perl"
   2) "FindBin" works relatively to executed binary instead of relatively
   to caller
   3) Perl is linguistic language, and `use lib::abs "..."' semantically
   more clear and looks more beautiful than `use FindBin; use lib
   "$FindBin::Bin/../lib";'
   4) "FindBin" b<will> work incorrectly, if will be called not from
   executed binary (see <http://github.com/Mons/lib-abs-vs-findbin>
   comparison for details)

BUGS
   None known

COPYRIGHT AND LICENSE
   This software is copyright (c) 2007-2020 by Mons Anderson.

   This is free software; you can redistribute it and/or modify it under
   the same terms as the Perl 5 programming language system itself.

AUTHOR
   Mons Anderson, "<[email protected]>"

CONTRIBUTORS
   Oleg Kostyuk, "<[email protected]>"