256c2dc42c
Change the logic of the i18n functions I added in 5e9637c629 (i18n:
add infrastructure for translating Git with gettext, 2011-11-18) to
use pass-through functions when NO_GETTEXT is defined.
This speeds up the compilation time of commands that use this library
when NO_GETTEXT=Y is in effect. Loading it and POSIX.pm is around 20ms
on my machine, whereas it takes 2ms to just instantiate perl itself.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
126 lines
2.8 KiB
Perl
126 lines
2.8 KiB
Perl
package Git::I18N;
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use 5.008;
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use strict;
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use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
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BEGIN {
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require Exporter;
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if ($] < 5.008003) {
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*import = \&Exporter::import;
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} else {
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# Exporter 5.57 which supports this invocation was
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# released with perl 5.8.3
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Exporter->import('import');
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}
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}
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our @EXPORT = qw(__ __n N__);
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our @EXPORT_OK = @EXPORT;
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# See Git::LoadCPAN's NO_PERL_CPAN_FALLBACKS_STR for a description of
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# this "'@@' [...] '@@'" pattern.
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use constant NO_GETTEXT_STR => '@@' . 'NO_GETTEXT' . '@@';
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use constant NO_GETTEXT => (
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q[@@NO_GETTEXT@@] ne ''
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and
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q[@@NO_GETTEXT@@] ne NO_GETTEXT_STR
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);
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sub __bootstrap_locale_messages {
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our $TEXTDOMAIN = 'git';
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our $TEXTDOMAINDIR ||= $ENV{GIT_TEXTDOMAINDIR} || '@@LOCALEDIR@@';
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die "NO_GETTEXT=" . NO_GETTEXT_STR if NO_GETTEXT;
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require POSIX;
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POSIX->import(qw(setlocale));
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# Non-core prerequisite module
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require Locale::Messages;
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Locale::Messages->import(qw(:locale_h :libintl_h));
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setlocale(LC_MESSAGES(), '');
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setlocale(LC_CTYPE(), '');
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textdomain($TEXTDOMAIN);
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bindtextdomain($TEXTDOMAIN => $TEXTDOMAINDIR);
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return;
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}
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BEGIN
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{
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# Used by our test script to see if it should test fallbacks or
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# not.
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our $__HAS_LIBRARY = 1;
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local $@;
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eval {
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__bootstrap_locale_messages();
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*__ = \&Locale::Messages::gettext;
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*__n = \&Locale::Messages::ngettext;
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1;
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} or do {
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# Tell test.pl that we couldn't load the gettext library.
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$Git::I18N::__HAS_LIBRARY = 0;
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# Just a fall-through no-op
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*__ = sub ($) { $_[0] };
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*__n = sub ($$$) { $_[2] == 1 ? $_[0] : $_[1] };
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};
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sub N__($) { return shift; }
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}
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1;
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__END__
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=head1 NAME
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Git::I18N - Perl interface to Git's Gettext localizations
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=head1 SYNOPSIS
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use Git::I18N;
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print __("Welcome to Git!\n");
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printf __("The following error occurred: %s\n"), $error;
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printf __n("committed %d file\n", "committed %d files\n", $files), $files;
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=head1 DESCRIPTION
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Git's internal Perl interface to gettext via L<Locale::Messages>. If
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L<Locale::Messages> can't be loaded (it's not a core module) we
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provide stub passthrough fallbacks.
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This is a distilled interface to gettext, see C<info '(gettext)Perl'>
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for the full interface. This module implements only a small part of
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it.
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=head1 FUNCTIONS
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=head2 __($)
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L<Locale::Messages>'s gettext function if all goes well, otherwise our
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passthrough fallback function.
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=head2 __n($$$)
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L<Locale::Messages>'s ngettext function or passthrough fallback function.
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=head2 N__($)
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No-operation that only returns its argument. Use this if you want xgettext to
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extract the text to the pot template but do not want to trigger retrival of the
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translation at run time.
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=head1 AUTHOR
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E<AElig>var ArnfjE<ouml>rE<eth> Bjarmason <avarab@gmail.com>
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=head1 COPYRIGHT
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Copyright 2010 E<AElig>var ArnfjE<ouml>rE<eth> Bjarmason <avarab@gmail.com>
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=cut
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