File indexing completed on 2024-12-29 04:44:02

 #!/usr/bin/perl
 #
 # Copyright 2019 Harald Sitter <sitter@kde.org>
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as
 # published by the Free Software Foundation; either version 3 of
 # the License or any later version accepted by the membership of
 # KDE e.V. (or its successor approved by the membership of KDE
 # e.V.), which shall act as a proxy defined in Section 14 of
 # version 3 of the license.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 use strict;
 
 my $debug = 0;
 if (defined $ENV{'LOCALE_DEBUG'}) {
   $debug = 1;
 }
 
 my $config_dir = ($ENV{'XDG_CONFIG_HOME'} or "$ENV{'HOME'}/.config");
 my $conf="$config_dir/klanguageoverridesrc";
 
 my @languages = ('C.UTF-8');
 
 sub debug {
   print(@_) if $debug;
 }
 
 # Grab langs from languageoverrides file (in-app language switch feature).
 if (-e $conf) {
   my $group;
   open my $ini, '<', $conf or die "Can't open $conf: $!\n";
   while (<$ini>) { # loops in $_
     chomp;
     my $keyword;
     my $value;
     if (/^\s*\[(.+)\].*/) {
         $group = $1;
     } elsif (/^([^=]+?)\s*=\s*(.*?)\s*$/) { # https://code-maven.com/slides/perl-programming/solution-parse-ini-file
       if ($group ne 'Language') {
         next;
       }
       $keyword = $1;
       $value = $2;
       my $pattern = '@ByteArray\((.+)\)';
       (my $langs = $value) =~ s/$pattern/$1/g;
       push @languages, split(/:/, $langs);
       # print("-- keyword: $1 -- value: $2\n");
     }
   }
   close($ini);
 }
 
 # Grab values from ENV.
 push @languages, ($ENV{'LANG'} or 'C.UTF-8');
 foreach my $key (sort keys %ENV) {
   my $needle = 'LC_';
   if (substr($key, 0, length($needle)) eq $needle) {
     push @languages, $ENV{$key};
   }
 }
 if (my $language = $ENV{'LANGUAGE'}) {
   push @languages, split(':', $language);
 }
 push @languages, ($ENV{'LANG'} or 'C.UTF-8');
 
 # Uniqify; can't really use any perl modules as the base requirements of KF5 are
 # mostly perl core only.
 @languages = do { my %seen; grep { !$seen{$_}++ } @languages };
 
 # Generate as necessary.
 # Note: this actually generates invalid stuff as well (e.g. fr.UTF-8) while we
 #   apparently do not need these there isn't much of a downside to generate them
 #   lest something in glibc falls over if the language is entirely unknown in
 #   the locpath. I should point out that we can't actually get from
 #   language-only settings (as seen in klanguageoverrides) to full locales, so
 #   there is no other option here anyway.
 my $env_locpath = $ENV{'LOCPATH'} or die "LOCPATH not set";
 my @locpaths = split(/:/, $env_locpath);
 my $master_locpath = $locpaths[0];
 foreach my $lang (@languages) {
   my ($locale, $encoding) = split(/\./, $lang);
   $encoding //= 'UTF-8';
   debug("lang: $lang loc: $locale, char: $encoding\n");
 
   my $found = 0;
   foreach my $locpath (@locpaths) {
     my $loc_target = "$locpath/$locale.$encoding";
     debug("checking $loc_target\n");
     if (-e $loc_target) {
       debug("exists! skipping\n");
       $found = 1;
       last;
     }
   }
   next if $found;
   my $target = "$master_locpath/$locale.$encoding";
 
   debug("generating $target\n");
   # localedef will exit !0 for unknown reasons, even when everything was
   # generated fine.
   #  may be: /snap/krita/32/usr/share/i18n/locales/iso14651_t1_common:7120: LC_COLLATE: symbol `pure-ta-zh' not known
   system('localedef', '-i', $locale, '-f', $encoding, $target);
 }
 
 # use Data::Dumper;
 # print Dumper(@languages);