LANGUAGE.pm

# See bottom of file for license and copyright information
package Foswiki::Configure::Checkers::LANGUAGE;

use strict;
use warnings;

use Assert;

require Foswiki::Configure::Checker;
our @ISA = ('Foswiki::Configure::Checker');

=begin TML

---++ ObjectMethod check() -> $checkmsg

This is a generic (item-independent) checker for LANGUAGE items.

These have keys of the form {Languages}{ language }{Enabled}.

=cut

sub check_current_value {
    my ( $this, $reporter ) = @_;

    return unless ( $Foswiki::cfg{UserInterfaceInternationalisation} );

    my $enabled = $this->checkExpandedValue($reporter);
    return unless $enabled;

    my $dir = $Foswiki::cfg{LocalesDir};
    Foswiki::Configure::Load::expandValue($dir);
    my $compress = $Foswiki::cfg{LanguageFileCompression};

    my $lang = $this->{item}->{keys};
    unless ( $lang =~ s/^\{Languages\}\{'?([\w-]+)'?\}\{Enabled\}$/$1/ ) {
        die "Invalid item key $lang for LANGUAGE";
    }

    return $reporter->ERROR("Missing language file $dir/$lang.po")
      unless ( -r "$dir/$lang.po" );

    if ($compress) {
        my $ok = -r "$dir/$lang.mo" && -M "$dir/$lang.po" >= -M "$dir/$lang.mo";

        unless ($ok) {
            eval("require Locale::Msgfmt;");
            if ($@) {
                return $reporter->ERROR(
"Locale::Msgfmt can not be loaded, unable to compile strings."
                );
            }
            my $umask =
              umask( oct(777) - $Foswiki::cfg{Store}{filePermission} );
            eval {
                Locale::Msgfmt::msgfmt(
                    {
                        in      => "$dir/$lang.po",
                        out     => "$dir/$lang.mo",
                        verbose => 0
                        , # verbose is not documented, but prints results to STDERR
                    }
                );
            };
            if ($@) {
                $reporter->ERROR(
                    "Unable to compress strings: compilation failed.");
            }
            else {
                $reporter->NOTE("Successfully compressed strings");
            }
            umask($umask);
        }
    }
    else {
        if ( -f "$dir/$lang.mo" ) {
            if ( unlink("$dir/$lang.mo") ) {
                $reporter->NOTE("Removed compressed strings");
            }
            else {
                $reporter->ERROR(
                    "Unable to remove compressed strings in $dir/$lang.mo: $!");
            }
        }
    }
}

=begin TML

---++ ObjectMethod onSave()

This routine is called during the Save wizard, for any key that being
saved, regardless of whether or not it has actually changed.  This
is enabled by including the ONSAVE key in the Spec. (In this case it is
automatically enabled by the =Pluggable/LANGUAGES.pm=

This will remove the languages.cache file from the WorkingDir, so that
the cache can be regenerated.

=cut

sub onSave {
    my ( $this, $reporter, $key, $val ) = @_;

    if ( $Foswiki::cfg{UserInterfaceInternationalisation} ) {
        my $dir = $Foswiki::cfg{WorkingDir};

        if ( -f "$dir/languages.cache" ) {
            if ( unlink("$dir/languages.cache") ) {
                $reporter->NOTE("Flushed languages cache");
            }
            else {
                $reporter->ERROR("Failed to remove $dir/languages.cache: $!");
            }
        }
    }
}

1;
__END__
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are listed in the AUTHORS file in the root of this distribution.
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modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version. For
more details read LICENSE in the root of this distribution.

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