NAME

   perl-migrate-modules - Migrate installed CPAN modules from one Perl to
   another

SYNOPSIS

     perl-migrate-modules [OPTIONS] [<src-path>] <dest-path>

       perl-migrate-modules /path/to/perl-5.28.0 /path/to/perl-5.28.1
       perl-migrate-modules -nq -Ilib /usr/bin/perl ~/bin/perl
       perl-migrate-modules --from ~/perl5/lib/perl5 ~/perls/5.20.0

     Options:
       -h, --help                   Show this message
       -f <path>, --from=<path>     Search only these path(s) for source modules
       -I <path>, --lib=<path>      Additional search path(s) for source modules
       -n, --notest                 Skip testing and test dependencies
       -q, --quiet                  Show only installation successes and failures
       -v, --version                Show the version of this script

DESCRIPTION

   Reinstalls all modules found in the source Perl into the destination
   Perl, similar to the clone-modules command for perlbrew or the
   migrate-modules command for plenv <https://github.com/tokuhirom/plenv>.
   The Perls may be passed as paths to the base installation directory or
   paths to the perl executable itself. If only one path is passed, it
   will be used as both the source and destination.

   The -I/--lib option allows specifying additional search paths for
   modules from the source Perl, such as local::lib directories. The
   install behavior for the destination Perl can be influenced using
   standard Perl and cpanm environment variables, such as "PERL_MM_OPT" in
   ExtUtils::MakeMaker, "PERL_MB_OPT" in Module::Build, and
   "PERL_CPANM_OPT" in cpanm.

EXAMPLES

     * Basic migration of modules to a newly installed Perl:

       $ perl-migrate-modules /opt/perl-5.20.3 /opt/perl-5.22.0

     * Migrate modules from an old (inactive) local::lib directory:

       $ perl-migrate-modules --from ~/perl5-old/lib/perl5 /usr/bin/perl

     * Migrate modules to a custom local::lib location:

       $ env PERL_CPANM_OPT='-l /opt/project/local' perl-migrate-modules /opt/perl-5.28.0 /opt/perl-5.28.1

     * Update all modules installed in the current Perl:

       $ perl-migrate-modules $(which perl)

CAVEATS

   Only modules with .packlist will be migrated, this will include any
   module installed by CPAN clients, but generally not modules installed
   by vendor packages or core modules.

   Migrated modules will be installed at their latest indexed version, not
   the version that exists in the source Perl.

   Any environment settings that affect Perl's library search and module
   install locations, such as PERL5LIB or an active local::lib, will be
   ignored for the source Perl but will have its normal effect on
   installation into the destination Perl.

BUGS

   Report any issues on the public bugtracker.

AUTHOR

   Dan Book <[email protected]>

COPYRIGHT AND LICENSE

   This software is Copyright (c) 2018 by Dan Book.

   This is free software, licensed under:

     The Artistic License 2.0 (GPL Compatible)

SEE ALSO

   "COMMAND: CLONE-MODULES" in perlbrew

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