NAME

Gentoo::PerlMod::Version - Convert arbitrary Perl Modules' versions into normalised Gentoo versions.

VERSION

version 0.001.000

SYNOPSIS

    use Gentoo::PerlMod::Version qw( :all );

    # http://search.cpan.org/~gmpassos/XML-Smart-1.6.9/
    say gentooize_version( '1.6.9' )  # 1.006.009

    http://search.cpan.org/~pip/Math-BaseCnv-1.6.A6FGHKE/

    say gentooize('1.6.A6FGHKE')   #  <-- death, this is awful

    # -- Work-In-Progress Features --

    say gentooize('1.6.A6FGHKE',{ lax => 1}) # <-- still death

    say gentooize('1.6.A6FGHKE',{ lax => 2}) # 1.006.366.556.632.014  # <-- the best we can do.

    say gentooize('1.9902-TRIAL')   #  <-- death, this is awful

    say gentooize('1.9902-TRIAL', { lax => 1 })   #  1.990.200_rc # <-- -TRIAL gets nuked, 'rc' is added.

METHODS

gentooize_version

    my $normalized = gentooize_version( $weird_version )

gentooize_version tries hard to mangle a version that is part of a CPAN dist into a normalized form for Gentoo, which can be used as the version number of the ebuild, while storing the original upstream version in the ebuild.

    CPAN: Foo-Bar-Baz 1.5
    print gentooize_version('1.5');  # -> 1.500
    -> dev-perl/Foo-Bar-Baz-1.500.ebuild
    cat dev-perl/Foo-Bar-Baz-1.500.ebuild
    # ...
    # MODULE_VERSION="1.5"
    # ...

Normal behaviour accepts only sane non-testing versions, and expands them to the form of \d(.\d\d\d)+ i.e.:

    0.1         -> 0.100
    0.001       -> 0.001
    1.1         -> 1.100
    1.123.13    -> 1.123.013

Etc.

This uses version.pm to read versions and to normalize them to floating-point form, and the floating point form is sliced into arbitrary parts 3-digits long. i.e.:

    $x = version->parse( 0.01 )->numify;   # 0.010
    $x =~ s/(\.\d\d\d)(\d+)$/$1.$2/;       # 0.010
    $x = version->parse( 0.001 )->numify;  # 0.001
    $x =~ s/(\.\d\d\d)(\d+)$/$1.$2/;       # 0.001
    $x = version->parse( 0.0001 )->numify; # 0.000100
    $x =~ s/(\.\d\d\d)(\d+)$/$1.$2/;       # 0.000.100

So assuming Perl can handle your versions, they can be normalised.

lax level 1

    my $nomralized = gentooize_version( $werid_version, { lax => 1 } );

EXPERIMENTAL: This feature is still in flux, and the emitted versions may change.

This adds one layer of laxativity, and permits parsing and processing of "Developer Release" builds.

    1.10-TRIAL  # 1.100_rc
    1.11-TRIAL  # 1.110_rc
    1.1_1       # 1.110_rc

lax level 2

    my $nomralized = gentooize_version( $werid_version, { lax => 2 } );

EXPERIMENTAL: This feature is still in flux, and the emitted versions may change.

This adds another layer of laxativity, and permits parsing and processing of packages with versions not officially supported by Perl.

This means versions such as

    1.6.A       # 1.006.010
    1.6.AA      # 1.006.370
    1.6.AAA      # 1.006.370.010
    1.6.AAAA      # 1.006.370.370

    1.6.A6FGHKE # 1.006.366.556.632.014

This is performed by some really nasty tricks, and treats the ASCII portion like a set of pairs.

    1.6.A6.FG.HK.E

And each ascii pair is treated like a Base36 number.

    0 -> 0
    ....
    9 -> 9
    A -> 10
    ...
    Z -> 35

A6 is thus

    10 * 36 + 6 => 366

As you can see, its really nasty, and hopefully its not needed.

AUTHOR

Kent Fredric <kentnl@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Kent Fredric <kentnl@cpan.org>.

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