diff options
Diffstat (limited to 'IkiWiki/Plugin')
| -rw-r--r-- | IkiWiki/Plugin/po.pm | 717 |
1 files changed, 717 insertions, 0 deletions
diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm new file mode 100644 index 000000000..89bd99470 --- /dev/null +++ b/IkiWiki/Plugin/po.pm @@ -0,0 +1,717 @@ +#!/usr/bin/perl +# .po as a wiki page type +# Licensed under GPL v2 or greater +# Copyright (C) 2008 intrigeri <intrigeri@boum.org> +# inspired by the GPL'd po4a-translate, +# which is Copyright 2002, 2003, 2004 by Martin Quinson (mquinson#debian.org) +package IkiWiki::Plugin::po; + +use warnings; +use strict; +use IkiWiki 2.00; +use Encode; +use Locale::Po4a::Chooser; +use Locale::Po4a::Po; +use File::Basename; +use File::Copy; +use File::Spec; +use File::Temp; +use Memoize; +use UNIVERSAL; + +my %translations; +my @origneedsbuild; +our %filtered; + +memoize("_istranslation"); +memoize("percenttranslated"); +# FIXME: memoizing istranslatable() makes some test cases fail once every +# two tries; this may be related to the artificial way the testsuite is +# run, or not. +# memoize("istranslatable"); + +# backup references to subs that will be overriden +my %origsubs; + +sub import { #{{{ + hook(type => "getsetup", id => "po", call => \&getsetup); + hook(type => "checkconfig", id => "po", call => \&checkconfig); + hook(type => "needsbuild", id => "po", call => \&needsbuild); + hook(type => "scan", id => "po", call => \&scan, last =>1); + hook(type => "filter", id => "po", call => \&filter); + hook(type => "htmlize", id => "po", call => \&htmlize); + hook(type => "pagetemplate", id => "po", call => \&pagetemplate, last => 1); + hook(type => "change", id => "po", call => \&change); + hook(type => "editcontent", id => "po", call => \&editcontent); + + $origsubs{'bestlink'}=\&IkiWiki::bestlink; + inject(name => "IkiWiki::bestlink", call => \&mybestlink); + $origsubs{'beautify_urlpath'}=\&IkiWiki::beautify_urlpath; + inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath); + $origsubs{'targetpage'}=\&IkiWiki::targetpage; + inject(name => "IkiWiki::targetpage", call => \&mytargetpage); + $origsubs{'urlto'}=\&IkiWiki::urlto; + inject(name => "IkiWiki::urlto", call => \&myurlto); +} #}}} + +sub getsetup () { #{{{ + return + plugin => { + safe => 0, + rebuild => 1, # format plugin & changes html filenames + }, + po_master_language => { + type => "string", + example => { + 'code' => 'en', + 'name' => 'English' + }, + description => "master language (non-PO files)", + safe => 1, + rebuild => 1, + }, + po_slave_languages => { + type => "string", + example => { + 'fr' => 'Français', + 'es' => 'Castellano', + 'de' => 'Deutsch' + }, + description => "slave languages (PO files)", + safe => 1, + rebuild => 1, + }, + po_translatable_pages => { + type => "pagespec", + example => "!*/Discussion", + description => "PageSpec controlling which pages are translatable", + link => "ikiwiki/PageSpec", + safe => 1, + rebuild => 1, + }, + po_link_to => { + type => "string", + example => "current", + description => "internal linking behavior (default/current/negotiated)", + safe => 1, + rebuild => 1, + }, +} #}}} + +sub islanguagecode ($) { #{{{ + my $code=shift; + return ($code =~ /^[a-z]{2}$/); +} #}}} + +sub checkconfig () { #{{{ + foreach my $field (qw{po_master_language po_slave_languages}) { + if (! exists $config{$field} || ! defined $config{$field}) { + error(sprintf(gettext("Must specify %s"), $field)); + } + } + if (! (keys %{$config{po_slave_languages}})) { + error(gettext("At least one slave language must be defined in po_slave_languages")); + } + map { + islanguagecode($_) + or error(sprintf(gettext("%s is not a valid language code"), $_)); + } ($config{po_master_language}{code}, keys %{$config{po_slave_languages}}); + if (! exists $config{po_translatable_pages} || + ! defined $config{po_translatable_pages}) { + $config{po_translatable_pages}=""; + } + if (! exists $config{po_link_to} || + ! defined $config{po_link_to}) { + $config{po_link_to}='default'; + } + elsif (! grep { + $config{po_link_to} eq $_ + } ('default', 'current', 'negotiated')) { + warn(sprintf(gettext('po_link_to=%s is not a valid setting, falling back to po_link_to=default'), + $config{po_link_to})); + $config{po_link_to}='default'; + } + elsif ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) { + warn(gettext('po_link_to=negotiated requires usedirs to be enabled, falling back to po_link_to=default')); + $config{po_link_to}='default'; + } + push @{$config{wiki_file_prune_regexps}}, qr/\.pot$/; +} #}}} + +sub potfile ($) { #{{{ + my $masterfile=shift; + + (my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/); + $dir='' if $dir eq './'; + return File::Spec->catpath('', $dir, $name . ".pot"); +} #}}} + +sub pofile ($$) { #{{{ + my $masterfile=shift; + my $lang=shift; + + (my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/); + $dir='' if $dir eq './'; + return File::Spec->catpath('', $dir, $name . "." . $lang . ".po"); +} #}}} + +sub pofiles ($) { #{{{ + my $masterfile=shift; + return map pofile($masterfile, $_), (keys %{$config{po_slave_languages}}); +} #}}} + +sub refreshpot ($) { #{{{ + my $masterfile=shift; + + my $potfile=potfile($masterfile); + my %options = ("markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0); + my $doc=Locale::Po4a::Chooser::new('text',%options); + $doc->read($masterfile); + $doc->{TT}{utf_mode} = 1; + $doc->{TT}{file_in_charset} = 'utf-8'; + $doc->{TT}{file_out_charset} = 'utf-8'; + # let's cheat a bit to force porefs option to be passed to Locale::Po4a::Po; + # this is undocument use of internal Locale::Po4a::TransTractor's data, + # compulsory since this module prevents us from using the porefs option. + my %po_options = ('porefs' => 'none'); + $doc->{TT}{po_out}=Locale::Po4a::Po->new(\%po_options); + $doc->{TT}{po_out}->set_charset('utf-8'); + # do the actual work + $doc->parse; + IkiWiki::prep_writefile(basename($potfile),dirname($potfile)); + $doc->writepo($potfile); +} #}}} + +sub refreshpofiles ($@) { #{{{ + my $masterfile=shift; + my @pofiles=@_; + + my $potfile=potfile($masterfile); + error("[po/refreshpofiles] POT file ($potfile) does not exist") unless (-e $potfile); + + foreach my $pofile (@pofiles) { + IkiWiki::prep_writefile(basename($pofile),dirname($pofile)); + if (-e $pofile) { + system("msgmerge", "-U", "--backup=none", $pofile, $potfile) == 0 + or error("[po/refreshpofiles:$pofile] failed to update"); + } + else { + File::Copy::syscopy($potfile,$pofile) + or error("[po/refreshpofiles:$pofile] failed to copy the POT file"); + } + } +} #}}} + +sub needsbuild () { #{{{ + my $needsbuild=shift; + + # backup @needsbuild content so that change() can know whether + # a given master page was rendered because its source file was changed + @origneedsbuild=(@$needsbuild); + + # build %translations, using istranslation's side-effect + map istranslation($_), (keys %pagesources); + + # make existing translations depend on the corresponding master page + foreach my $master (keys %translations) { + foreach my $slave (values %{$translations{$master}}) { + add_depends($slave, $master); + } + } +} #}}} + +sub scan (@) { #{{{ + my %params=@_; + my $page=$params{page}; + my $content=$params{content}; + + return unless UNIVERSAL::can("IkiWiki::Plugin::link", "import"); + + if (istranslation($page)) { + my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/); + foreach my $destpage (@{$links{$page}}) { + if (istranslatable($destpage)) { + # replace one occurence of $destpage in $links{$page} + # (we only want to replace the one that was added by + # IkiWiki::Plugin::link::scan, other occurences may be + # there for other reasons) + for (my $i=0; $i<@{$links{$page}}; $i++) { + if (@{$links{$page}}[$i] eq $destpage) { + @{$links{$page}}[$i] = $destpage . '.' . $curlang; + last; + } + } + } + } + } + elsif (! istranslatable($page) && ! istranslation($page)) { + foreach my $destpage (@{$links{$page}}) { + if (istranslatable($destpage)) { + map { + push @{$links{$page}}, $destpage . '.' . $_; + } (keys %{$config{po_slave_languages}}); + } + } + } +} #}}} + +sub mytargetpage ($$) { #{{{ + my $page=shift; + my $ext=shift; + + if (istranslation($page)) { + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + if (! $config{usedirs} || $masterpage eq 'index') { + return $masterpage . "." . $lang . "." . $ext; + } + else { + return $masterpage . "/index." . $lang . "." . $ext; + } + } + elsif (istranslatable($page)) { + if (! $config{usedirs} || $page eq 'index') { + return $page . "." . $config{po_master_language}{code} . "." . $ext; + } + else { + return $page . "/index." . $config{po_master_language}{code} . "." . $ext; + } + } + return $origsubs{'targetpage'}->($page, $ext); +} #}}} + +sub mybeautify_urlpath ($) { #{{{ + my $url=shift; + + my $res=$origsubs{'beautify_urlpath'}->($url); + if ($config{po_link_to} eq "negotiated") { + $res =~ s!/\Qindex.$config{po_master_language}{code}.$config{htmlext}\E$!/!; + } + return $res; +} #}}} + +sub urlto_with_orig_beautiful_urlpath($$) { #{{{ + my $to=shift; + my $from=shift; + + inject(name => "IkiWiki::beautify_urlpath", call => $origsubs{'beautify_urlpath'}); + my $res=urlto($to, $from); + inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath); + + return $res; +} #}}} + +sub myurlto ($$;$) { #{{{ + my $to=shift; + my $from=shift; + my $absolute=shift; + + # workaround hard-coded /index.$config{htmlext} in IkiWiki::urlto() + if (! length $to + && $config{po_link_to} eq "current" + && istranslation($from) + && istranslatable('index')) { + my ($masterpage, $curlang) = ($from =~ /(.*)[.]([a-z]{2})$/); + return IkiWiki::beautify_urlpath(IkiWiki::baseurl($from) . "index." . $curlang . ".$config{htmlext}"); + } + return $origsubs{'urlto'}->($to,$from,$absolute); +} #}}} + +sub mybestlink ($$) { #{{{ + my $page=shift; + my $link=shift; + + my $res=$origsubs{'bestlink'}->($page, $link); + if (length $res) { + if ($config{po_link_to} eq "current" + && istranslatable($res) + && istranslation($page)) { + my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/); + return $res . "." . $curlang; + } + else { + return $res; + } + } + return ""; +} #}}} + +# We use filter to convert PO to the master page's format, +# since the rest of ikiwiki should not work on PO files. +sub filter (@) { #{{{ + my %params = @_; + + my $page = $params{page}; + my $destpage = $params{destpage}; + my $content = decode_utf8(encode_utf8($params{content})); + + return $content if ( ! istranslation($page) + || ( exists $filtered{$page}{$destpage} + && $filtered{$page}{$destpage} eq 1 )); + + # CRLF line terminators make poor Locale::Po4a feel bad + $content=~s/\r\n/\n/g; + + # Implementation notes + # + # 1. Locale::Po4a reads/writes from/to files, and I'm too lazy + # to learn how to disguise a variable as a file. + # 2. There are incompatibilities between some File::Temp versions + # (including 0.18, bundled with Lenny's perl-modules package) + # and others (e.g. 0.20, previously present in the archive as + # a standalone package): under certain circumstances, some + # return a relative filename, whereas others return an absolute one; + # we here use this module in a way that is at least compatible + # with 0.18 and 0.20. Beware, hit'n'run refactorers! + my $infile = new File::Temp(TEMPLATE => "ikiwiki-po-filter-in.XXXXXXXXXX", + DIR => File::Spec->tmpdir, + UNLINK => 1)->filename; + my $outfile = new File::Temp(TEMPLATE => "ikiwiki-po-filter-out.XXXXXXXXXX", + DIR => File::Spec->tmpdir, + UNLINK => 1)->filename; + + writefile(basename($infile), File::Spec->tmpdir, $content); + + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + my $masterfile = srcfile($pagesources{$masterpage}); + my (@pos,@masters); + push @pos,$infile; + push @masters,$masterfile; + my %options = ( + "markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0, + ); + my $doc=Locale::Po4a::Chooser::new('text',%options); + $doc->process( + 'po_in_name' => \@pos, + 'file_in_name' => \@masters, + 'file_in_charset' => 'utf-8', + 'file_out_charset' => 'utf-8', + ) or error("[po/filter:$infile]: failed to translate"); + $doc->write($outfile) or error("[po/filter:$infile] could not write $outfile"); + $content = readfile($outfile) or error("[po/filter:$infile] could not read $outfile"); + + # Unlinking should happen automatically, thanks to File::Temp, + # but it does not work here, probably because of the way writefile() + # and Locale::Po4a::write() work. + unlink $infile, $outfile; + + $filtered{$page}{$destpage}=1; + return $content; +} #}}} + +sub htmlize (@) { #{{{ + my %params=@_; + + my $page = $params{page}; + my $content = $params{content}; + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + my $masterfile = srcfile($pagesources{$masterpage}); + + # force content to be htmlize'd as if it was the same type as the master page + return IkiWiki::htmlize($page, $page, pagetype($masterfile), $content); +} #}}} + +sub percenttranslated ($) { #{{{ + my $page=shift; + + return gettext("N/A") unless (istranslation($page)); + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + my $file=srcfile($pagesources{$page}); + my $masterfile = srcfile($pagesources{$masterpage}); + my (@pos,@masters); + push @pos,$file; + push @masters,$masterfile; + my %options = ( + "markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0, + ); + my $doc=Locale::Po4a::Chooser::new('text',%options); + $doc->process( + 'po_in_name' => \@pos, + 'file_in_name' => \@masters, + 'file_in_charset' => 'utf-8', + 'file_out_charset' => 'utf-8', + ) or error("[po/percenttranslated:$file]: failed to translate"); + my ($percent,$hit,$queries) = $doc->stats(); + return $percent; +} #}}} + +sub otherlanguages ($) { #{{{ + my $page=shift; + + my @ret; + if (istranslatable($page)) { + foreach my $lang (sort keys %{$translations{$page}}) { + my $translation = $translations{$page}{$lang}; + push @ret, { + url => urlto($translation, $page), + code => $lang, + language => $config{po_slave_languages}{$lang}, + percent => percenttranslated($translation), + }; + } + } + elsif (istranslation($page)) { + my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/); + push @ret, { + url => urlto_with_orig_beautiful_urlpath($masterpage, $page), + code => $config{po_master_language}{code}, + language => $config{po_master_language}{name}, + master => 1, + }; + foreach my $lang (sort keys %{$translations{$masterpage}}) { + push @ret, { + url => urlto($translations{$masterpage}{$lang}, $page), + code => $lang, + language => $config{po_slave_languages}{$lang}, + percent => percenttranslated($translations{$masterpage}{$lang}), + } unless ($lang eq $curlang); + } + } + return @ret; +} #}}} + +sub pagetemplate (@) { #{{{ + my %params=@_; + my $page=$params{page}; + my $destpage=$params{destpage}; + my $template=$params{template}; + + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/) if istranslation($page); + + if (istranslation($page) && $template->query(name => "percenttranslated")) { + $template->param(percenttranslated => percenttranslated($page)); + } + if ($template->query(name => "istranslation")) { + $template->param(istranslation => istranslation($page)); + } + if ($template->query(name => "istranslatable")) { + $template->param(istranslatable => istranslatable($page)); + } + if ($template->query(name => "otherlanguages")) { + $template->param(otherlanguages => [otherlanguages($page)]); + if (istranslatable($page)) { + foreach my $translation (values %{$translations{$page}}) { + add_depends($page, $translation); + } + } + elsif (istranslation($page)) { + add_depends($page, $masterpage); + foreach my $translation (values %{$translations{$masterpage}}) { + add_depends($page, $translation); + } + } + } + # Rely on IkiWiki::Render's genpage() to decide wether + # a discussion link should appear on $page; this is not + # totally accurate, though: some broken links may be generated + # when cgiurl is disabled. + # This compromise avoids some code duplication, and will probably + # prevent future breakage when ikiwiki internals change. + # Known limitations are preferred to future random bugs. + if ($template->param('discussionlink') && istranslation($page)) { + $template->param('discussionlink' => htmllink( + $page, + $destpage, + $masterpage . '/' . gettext("Discussion"), + noimageinline => 1, + forcesubpage => 0, + linktext => gettext("Discussion"), + )); + } + # remove broken parentlink to ./index.html on home page's translations + if ($template->param('parentlinks') + && istranslation($page) + && $masterpage eq "index") { + $template->param('parentlinks' => []); + } +} # }}} + +sub change(@) { #{{{ + my @rendered=@_; + + my $updated_po_files=0; + + # Refresh/create POT and PO files as needed. + foreach my $page (map pagename($_), @rendered) { + next unless istranslatable($page); + my $file=srcfile($pagesources{$page}); + my $updated_pot_file=0; + if ((grep { $_ eq $pagesources{$page} } @origneedsbuild) + || ! -e potfile($file)) { + refreshpot($file); + $updated_pot_file=1; + } + my @pofiles; + foreach my $lang (keys %{$config{po_slave_languages}}) { + my $pofile=pofile($file, $lang); + if ($updated_pot_file || ! -e $pofile) { + push @pofiles, $pofile; + } + } + if (@pofiles) { + refreshpofiles($file, @pofiles); + map { IkiWiki::rcs_add($_); } @pofiles if ($config{rcs}); + $updated_po_files=1; + } + } + + if ($updated_po_files) { + # Check staged changes in. + if ($config{rcs}) { + IkiWiki::disable_commit_hook(); + IkiWiki::rcs_commit_staged(gettext("updated PO files"), + "IkiWiki::Plugin::po::change", "127.0.0.1"); + IkiWiki::enable_commit_hook(); + IkiWiki::rcs_update(); + } + # Reinitialize module's private variables. + undef %filtered; + undef %translations; + # Trigger a wiki refresh. + require IkiWiki::Render; + IkiWiki::refresh(); + IkiWiki::saveindex(); + } +} #}}} + +sub editcontent () { #{{{ + my %params=@_; + # as we're previewing or saving a page, the content may have + # changed, so tell the next filter() invocation it must not be lazy + if (exists $filtered{$params{page}}{$params{page}}) { + delete $filtered{$params{page}}{$params{page}}; + } + return $params{content}; +} #}}} + +sub istranslatable ($) { #{{{ + my $page=shift; + + my $file=$pagesources{$page}; + + if (! defined $file + || (defined pagetype($file) && pagetype($file) eq 'po') + || $file =~ /\.pot$/) { + return 0; + } + return pagespec_match($page, $config{po_translatable_pages}); +} #}}} + +sub _istranslation ($) { #{{{ + my $page=shift; + + my $file=$pagesources{$page}; + if (! defined $file) { + return IkiWiki::FailReason->new("no file specified"); + } + + if (! defined $file + || ! defined pagetype($file) + || ! pagetype($file) eq 'po' + || $file =~ /\.pot$/) { + return 0; + } + + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + if (! defined $masterpage || ! defined $lang + || ! (length($masterpage) > 0) || ! (length($lang) > 0) + || ! defined $pagesources{$masterpage} + || ! defined $config{po_slave_languages}{$lang}) { + return 0; + } + + return istranslatable($masterpage); +} #}}} + +sub istranslation ($) { #{{{ + my $page=shift; + + if (_istranslation($page)) { + my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + $translations{$masterpage}{$lang}=$page unless exists $translations{$masterpage}{$lang}; + return 1; + } + return 0; +} #}}} + +package IkiWiki::PageSpec; +use warnings; +use strict; +use IkiWiki 2.00; + +sub match_istranslation ($;@) { #{{{ + my $page=shift; + + if (IkiWiki::Plugin::po::istranslation($page)) { + return IkiWiki::SuccessReason->new("is a translation page"); + } + else { + return IkiWiki::FailReason->new("is not a translation page"); + } +} #}}} + +sub match_istranslatable ($;@) { #{{{ + my $page=shift; + + if (IkiWiki::Plugin::po::istranslatable($page)) { + return IkiWiki::SuccessReason->new("is set as translatable in po_translatable_pages"); + } + else { + return IkiWiki::FailReason->new("is not set as translatable in po_translatable_pages"); + } +} #}}} + +sub match_lang ($$;@) { #{{{ + my $page=shift; + my $wanted=shift; + + my $regexp=IkiWiki::glob2re($wanted); + my $lang; + my $masterpage; + + if (IkiWiki::Plugin::po::istranslation($page)) { + ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + } + else { + $lang = $config{po_master_language}{code}; + } + + if ($lang!~/^$regexp$/i) { + return IkiWiki::FailReason->new("file language is $lang, not $wanted"); + } + else { + return IkiWiki::SuccessReason->new("file language is $wanted"); + } +} #}}} + +sub match_currentlang ($$;@) { #{{{ + my $page=shift; + + shift; + my %params=@_; + my ($currentmasterpage, $currentlang, $masterpage, $lang); + + return IkiWiki::FailReason->new("no location provided") unless exists $params{location}; + + if (IkiWiki::Plugin::po::istranslation($params{location})) { + ($currentmasterpage, $currentlang) = ($params{location} =~ /(.*)[.]([a-z]{2})$/); + } + else { + $currentlang = $config{po_master_language}{code}; + } + + if (IkiWiki::Plugin::po::istranslation($page)) { + ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/); + } + else { + $lang = $config{po_master_language}{code}; + } + + if ($lang eq $currentlang) { + return IkiWiki::SuccessReason->new("file language is the same as current one, i.e. $currentlang"); + } + else { + return IkiWiki::FailReason->new("file language is $lang, whereas current language is $currentlang"); + } +} #}}} + +1 |