From: intrigeri Date: Thu, 13 Nov 2008 03:38:48 +0000 (+0100) Subject: Merge commit 'upstream/master' X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/commitdiff_plain/6d98c5290f2542552979e374d8e3dcbef51f31a6?hp=699aa79c2e2dbec02a38ba6ff32e9c861ee9f7be Merge commit 'upstream/master' --- diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm new file mode 100644 index 000000000..c8ec37c22 --- /dev/null +++ b/IkiWiki/Plugin/po.pm @@ -0,0 +1,657 @@ +#!/usr/bin/perl +# .po as a wiki page type +# Licensed under GPL v2 or greater +# Copyright (C) 2008 intrigeri +# 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; + +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 => "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); + $origsubs{'targetpage'}=\&IkiWiki::targetpage; + inject(name => "IkiWiki::targetpage", call => \&mytargetpage); +} #}}} + +sub getsetup () { #{{{ + return + plugin => { + safe => 0, + rebuild => 1, # format plugin & changes html filenames + }, + po_master_language => { + type => "string", + example => { + 'code' => 'en', + 'name' => 'English' + }, + description => "master language (non-PO files)", + safe => 1, + rebuild => 1, + }, + po_slave_languages => { + type => "string", + example => { + 'fr' => 'Français', + 'es' => 'Castellano', + 'de' => 'Deutsch' + }, + description => "slave languages (PO files)", + safe => 1, + rebuild => 1, + }, + po_translatable_pages => { + type => "pagespec", + example => "!*/Discussion", + description => "PageSpec controlling which pages are translatable", + link => "ikiwiki/PageSpec", + safe => 1, + rebuild => 1, + }, + po_link_to => { + type => "string", + example => "current", + description => "internal linking behavior (default/current/negotiated)", + safe => 1, + rebuild => 1, + }, +} #}}} + +sub islanguagecode ($) { #{{{ + 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 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 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($$) { #{{{ + my $to=shift; + my $from=shift; + + inject(name => "IkiWiki::beautify_urlpath", call => $origsubs{'beautify_urlpath'}); + my $res=urlto($to, $from); + inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath); + + return $res; +} #}}} + +sub mybestlink ($$) { #{{{ + 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 diff --git a/debian/control b/debian/control index fdf2a3a36..04283532b 100644 --- a/debian/control +++ b/debian/control @@ -14,7 +14,7 @@ Package: ikiwiki Architecture: all Depends: ${perl:Depends}, markdown | libtext-markdown-perl, libhtml-scrubber-perl, libhtml-template-perl, libhtml-parser-perl, liburi-perl Recommends: gcc | c-compiler, libc6-dev | libc-dev, subversion | git-core (>= 1:1.5.0) | tla | bzr (>= 0.91) | mercurial | monotone (>= 0.38), libxml-simple-perl, libnet-openid-consumer-perl, liblwpx-paranoidagent-perl, libtimedate-perl, libcgi-formbuilder-perl (>= 3.05), libcgi-session-perl (>= 4.14-1), libmail-sendmail-perl, libauthen-passphrase-perl -Suggests: viewvc | gitweb | viewcvs, libsearch-xapian-perl, xapian-omega (>= 1.0.5), librpc-xml-perl, libtext-wikiformat-perl, python, python-docutils, polygen, tidy, libxml-feed-perl, libmailtools-perl, perlmagick, libfile-mimeinfo-perl, libcrypt-ssleay-perl, liblocale-gettext-perl (>= 1.05-1), libtext-typography-perl, libtext-csv-perl, libdigest-sha1-perl, graphviz, libnet-amazon-s3-perl, sparkline-php, texlive, dvipng +Suggests: viewvc | gitweb | viewcvs, libsearch-xapian-perl, xapian-omega (>= 1.0.5), librpc-xml-perl, libtext-wikiformat-perl, python, python-docutils, polygen, tidy, libxml-feed-perl, libmailtools-perl, perlmagick, libfile-mimeinfo-perl, libcrypt-ssleay-perl, liblocale-gettext-perl (>= 1.05-1), libtext-typography-perl, libtext-csv-perl, libdigest-sha1-perl, graphviz, libnet-amazon-s3-perl, sparkline-php, texlive, dvipng, po4a Conflicts: ikiwiki-plugin-table Replaces: ikiwiki-plugin-table Provides: ikiwiki-plugin-table diff --git a/doc/ikiwiki/pagespec.mdwn b/doc/ikiwiki/pagespec.mdwn index c78666c40..176228e4b 100644 --- a/doc/ikiwiki/pagespec.mdwn +++ b/doc/ikiwiki/pagespec.mdwn @@ -47,6 +47,8 @@ Some more elaborate limits can be added to what matches using these functions: wiki admins. * "`ip(address)`" - tests whether a modification is being made from the specified IP address. +* Some additional special-purpose limits may be enabled, for matching + [[attachments|attachment]] and [[translations|po]]. For example, to match all pages in a blog that link to the page about music and were written in 2005: diff --git a/doc/ikiwiki/pagespec/po.mdwn b/doc/ikiwiki/pagespec/po.mdwn new file mode 100644 index 000000000..60c344689 --- /dev/null +++ b/doc/ikiwiki/pagespec/po.mdwn @@ -0,0 +1,16 @@ +[[!if test="enabled(po)" + then="This wiki has po support **enabled**." + else="This wiki has po support **disabled**."]] + +If the [[po|plugins/po]] plugin is enabled, the regular +[[ikiwiki/PageSpec]] syntax is expanded with the following additional +tests that can be used to improve user navigation in a multi-lingual +wiki: + +* "`lang(LL)`" - Tests whether a page is written in the language + specified as a ISO639-1 (two-letter) language code. +* "`currentlang()`" - Tests whether a page is written in the same + language as the current page. + +Note: every non-po page is considered to be written in +`po_master_language`, as specified in `ikiwiki.setup`. diff --git a/doc/plugins/po.mdwn b/doc/plugins/po.mdwn new file mode 100644 index 000000000..923ccd63a --- /dev/null +++ b/doc/plugins/po.mdwn @@ -0,0 +1,272 @@ +[[!template id=plugin name=po core=0 author="[[intrigeri]]"]] +[[!tag type/format]] + +This plugin adds support for multi-lingual wikis, translated with +gettext, using [po4a](http://po4a.alioth.debian.org/). + +It depends on the Perl `Locale::Po4a::Po` library (`apt-get install po4a`). + +Introduction +============ + +A language is chosen as the "master" one, and any other supported +language is a "slave" one. + +A page written in the "master" language is a "master" page. It can be +of any page type supported by ikiwiki, except `po`. It does not have to be +named a special way: migration to this plugin does not imply any page +renaming work. + +Example: `bla/page.mdwn` is a "master" Markdown page written in +English; if `usedirs` is enabled, it is rendered as +`bla/page/index.en.html`, else as `bla/page.en.html`. + +Any translation of a "master" page into a "slave" language is called +a "slave" page; it is written in the gettext PO format. `po` is now +a page type supported by ikiwiki. + +Example: `bla/page.fr.po` is the PO "message catalog" used to +translate `bla/page.mdwn` into French; if `usedirs` is enabled, it is +rendered as `bla/page/index.fr.html`, else as `bla/page.fr.html` + + +Configuration +============= + +Supported languages +------------------- + +`po_master_language` is used to set the "master" language in +`ikiwiki.setup`, such as: + + po_master_language => { 'code' => 'en', 'name' => 'English' } + +`po_slave_languages` is used to set the list of supported "slave" +languages, such as: + + po_slave_languages => { 'fr' => 'Français', + 'es' => 'Castellano', + 'de' => 'Deutsch', + } + +Decide which pages are translatable +----------------------------------- + +The `po_translatable_pages` setting configures what pages are +translatable. It is a [[ikiwiki/PageSpec]], so you have lots of +control over what kind of pages are translatable. + +The `.po` files are not considered as being translatable, so you don't need to +worry about excluding them explicitly from this [[ikiwiki/PageSpec]]. + +Internal links +-------------- + +The `po_link_to` option in `ikiwiki.setup` is used to decide how +internal links should be generated, depending on web server features +and site-specific preferences. + +### Default linking behavior + +If `po_link_to` is unset, or set to `default`, ikiwiki's default +linking behavior is preserved: `\[[destpage]]` links to the master +language's page. + +### Link to current language + +If `po_link_to` is set to `current`, `\[[destpage]]` links to the +`destpage`'s version written in the current page's language, if +available, *i.e.*: + +- `foo/destpage/index.LL.html` if `usedirs` is enabled +- `foo/destpage.LL.html` if `usedirs` is disabled + +### Link to negotiated language + +If `po_link_to` is set to `negotiated`, `\[[page]]` links to the +negotiated preferred language, *i.e.* `foo/page/`. + +(In)compatibility notes: + +- if `usedirs` is disabled, it does not make sense to set `po_link_to` + to `negotiated`; this option combination is neither implemented + nor allowed. +- if the web server does not support Content Negotiation, setting + `po_link_to` to `negotiated` will produce a unusable website. + + +Server support +============== + +Apache +------ + +Using Apache `mod_negotiation` makes it really easy to have Apache +serve any page in the client's preferred language, if available. +This is the default Debian Apache configuration. + +When `usedirs` is enabled, one has to set `DirectoryIndex index` for +the wiki context. + +Setting `DefaultLanguage LL` (replace `LL` with your default MIME +language code) for the wiki context can help to ensure +`bla/page/index.en.html` is served as `Content-Language: LL`. + +lighttpd +-------- + +lighttpd unfortunately does not support content negotiation. + +**FIXME**: does `mod_magnet` provide the functionality needed to + emulate this? + + +Usage +===== + +Templates +--------- + +The `ISTRANSLATION` and `ISTRANSLATABLE` variables can be used to +display things only on translatable or translation pages. + +### Display page's versions in other languages + +The `OTHERLANGUAGES` loop provides ways to display other languages' +versions of the same page, and the translations' status. + +One typically adds the following code to `templates/page.tmpl`: + + +
+
    + +
  • + "> + + ( %) + +
    • +     +
+
+ + +The following variables are available inside the loop (for every page in): + +- `URL` - url to the page +- `CODE` - two-letters language code +- `LANGUAGE` - language name (as defined in `po_slave_languages`) +- `MASTER` - is true (1) if, and only if the page is a "master" page +- `PERCENT` - for "slave" pages, is set to the translation completeness, in percents + +### Display the current translation status + +The `PERCENTTRANSLATED` variable is set to the translation +completeness, expressed in percent, on "slave" pages. + +One can use it this way: + + +
+ +
+ + +Additional PageSpec tests +------------------------- + +This plugin enhances the regular [[ikiwiki/PageSpec]] syntax with some +additional tests that are documented [[here|ikiwiki/pagespec/po]]. + +Automatic PO file update +------------------------ + +Committing changes to a "master" page: + +1. updates the POT file and the PO files for the "slave" languages; + the updated PO files are then put under version control; +2. triggers a refresh of the corresponding HTML slave pages. + +Also, when the plugin has just been enabled, or when a page has just +been declared as being translatable, the needed POT and PO files are +created, and the PO files are checked into version control. + +Discussion pages +---------------- + +Discussion should happen in the language in which the pages are +written for real, *i.e.* the "master" one. If discussion pages are +enabled, "slave" pages therefore link to the "master" page's +discussion page. + +Translating +----------- + +One can edit the PO files using ikiwiki's CGI (a message-by-message +interface could also be implemented at some point). + +If [[tips/untrusted_git_push]] is setup, one can edit the PO files in one's +preferred `$EDITOR`, without needing to be online. + +TODO +==== + +Security checks +--------------- + +- Can any sort of directives be put in po files that will + cause mischief (ie, include other files, run commands, crash gettext, + whatever). +- Any security issues on running po4a on untrusted content? + +gettext/po4a rough corners +-------------------------- + +- fix infinite loop when synchronizing two ikiwiki (when checkouts + live in different directories): say bla.fr.po has been updated in + repo2; pulling repo2 from repo1 seems to trigger a PO update, that + changes bla.fr.po in repo1; then pushing repo1 to repo2 triggers + a PO update, that changes bla.fr.po in repo2; etc.; fixed in + `629968fc89bced6727981c0a1138072631751fee`? +- new translations created in the web interface must get proper + charset/encoding gettext metadata, else the next automatic PO update + removes any non-ascii chars; possible solution: put such metadata + into the Pot file, and let it propagate; should be fixed in + `773de05a7a1ee68d2bed173367cf5e716884945a`, time will tell. + +Misc. improvements +------------------ + +### page titles + +Use nice page titles from meta plugin in links, as inline already +does. This is actually a duplicate for +[[bugs/pagetitle_function_does_not_respect_meta_titles]], which might +be fixed by something like [[todo/using_meta_titles_for_parentlinks]]. + +### backlinks + +`po_link_to = negotiated`: if a given translatable `sourcepage.mdwn` +links to \[[destpage]], `sourcepage.LL.po` also link to \[[destpage]], +and the latter has the master page *and* all its translations listed +in the backlinks. + +`po_link_to = current`: seems to work nicely + +### parentlinks + +When `usedirs` is disabled and the home page is translatable, the +parent link to the wiki home page is broken (`/index.html`). + +Translation quality assurance +----------------------------- + +Modifying a PO file via the CGI must be forbidden if the new version +is not a valid PO file. As a bonus, check that it provides a more +complete translation than the existing one. + +A new `cansave` type of hook would be needed to implement this. + +Note: committing to the underlying repository is a way to bypass +this check. diff --git a/t/po.t b/t/po.t new file mode 100755 index 000000000..232c98c81 --- /dev/null +++ b/t/po.t @@ -0,0 +1,111 @@ +#!/usr/bin/perl +# -*- cperl-indent-level: 8; -*- +use warnings; +use strict; +use File::Temp; + +BEGIN { + unless (eval { require Locale::Po4a::Chooser }) { + eval q{ + use Test::More skip_all => "Locale::Po4a::Chooser::new is not available" + } + } + unless (eval { require Locale::Po4a::Po }) { + eval q{ + use Test::More skip_all => "Locale::Po4a::Po::new is not available" + } + } +} + +use Test::More tests => 34; + +BEGIN { use_ok("IkiWiki"); } + +my $msgprefix; + +### Init +%config=IkiWiki::defaultconfig(); +$config{srcdir}=$config{destdir}="/dev/null"; +## will need this when more thorough tests are written +# $config{srcdir} = "t/po/src"; +# $config{destdir} = File::Temp->newdir("ikiwiki-test-po.XXXXXXXXXX", TMPDIR => 1)->dirname; +$config{po_master_language} = { code => 'en', + name => 'English' + }; +$config{po_slave_languages} = { + es => 'Castellano', + fr => "Français" + }; +$config{po_translatable_pages}='index or test1 or test2'; +$config{po_link_to}='negotiated'; +IkiWiki::loadplugins(); +IkiWiki::checkconfig(); +ok(IkiWiki::loadplugin('po'), "po plugin loaded"); + +### seed %pagesources and %pagecase +$pagesources{'index'}='index.mdwn'; +$pagesources{'index.fr'}='index.fr.po'; +$pagesources{'test1'}='test1.mdwn'; +$pagesources{'test1.fr'}='test1.fr.po'; +$pagesources{'test2'}='test2.mdwn'; +$pagesources{'test2.es'}='test2.es.po'; +$pagesources{'test2.fr'}='test2.fr.po'; +$pagesources{'test3'}='test3.mdwn'; +$pagesources{'test3.es'}='test3.es.mdwn'; +foreach my $page (keys %pagesources) { + $IkiWiki::pagecase{lc $page}=$page; +} + +### istranslatable/istranslation +# we run these tests twice because memoization attempts made them +# succeed once every two tries... +ok(IkiWiki::Plugin::po::istranslatable('index'), "index is translatable"); +ok(IkiWiki::Plugin::po::istranslatable('index'), "index is translatable"); +ok(! IkiWiki::Plugin::po::istranslatable('index.fr'), "index is not translatable"); +ok(! IkiWiki::Plugin::po::istranslatable('index.fr'), "index is not translatable"); +ok(! IkiWiki::Plugin::po::istranslation('index'), "index is not a translation"); +ok(! IkiWiki::Plugin::po::istranslation('index'), "index is not a translation"); +ok(IkiWiki::Plugin::po::istranslation('index.fr'), "index.fr is a translation"); +ok(IkiWiki::Plugin::po::istranslation('index.fr'), "index.fr is a translation"); +ok(IkiWiki::Plugin::po::istranslatable('test2'), "test2 is translatable"); +ok(IkiWiki::Plugin::po::istranslatable('test2'), "test2 is translatable"); +ok(! IkiWiki::Plugin::po::istranslation('test2'), "test2 is not a translation"); +ok(! IkiWiki::Plugin::po::istranslation('test2'), "test2 is not a translation"); +ok(! IkiWiki::Plugin::po::istranslatable('test3'), "test3 is not translatable"); +ok(! IkiWiki::Plugin::po::istranslatable('test3'), "test3 is not translatable"); +ok(! IkiWiki::Plugin::po::istranslation('test3'), "test3 is not a translation"); +ok(! IkiWiki::Plugin::po::istranslation('test3'), "test3 is not a translation"); + +### targetpage +$config{usedirs}=0; +$msgprefix="targetpage (usedirs=0)"; +is(targetpage('test1', 'html'), 'test1.en.html', "$msgprefix test1"); +is(targetpage('test1.fr', 'html'), 'test1.fr.html', "$msgprefix test1.fr"); +$config{usedirs}=1; +$msgprefix="targetpage (usedirs=1)"; +is(targetpage('index', 'html'), 'index.en.html', "$msgprefix index"); +is(targetpage('index.fr', 'html'), 'index.fr.html', "$msgprefix index.fr"); +is(targetpage('test1', 'html'), 'test1/index.en.html', "$msgprefix test1"); +is(targetpage('test1.fr', 'html'), 'test1/index.fr.html', "$msgprefix test1.fr"); +is(targetpage('test3', 'html'), 'test3/index.html', "$msgprefix test3 (non-translatable page)"); +is(targetpage('test3.es', 'html'), 'test3.es/index.html', "$msgprefix test3.es (non-translatable page)"); + +### bestlink +$config{po_link_to}='current'; +$msgprefix="bestlink (po_link_to=current)"; +is(bestlink('test1.fr', 'test2'), 'test2.fr', "$msgprefix test1.fr -> test2"); +is(bestlink('test1.fr', 'test2.es'), 'test2.es', "$msgprefix test1.fr -> test2.es"); +$config{po_link_to}='negotiated'; +$msgprefix="bestlink (po_link_to=negotiated)"; +is(bestlink('test1.fr', 'test2'), 'test2', "$msgprefix test1.fr -> test2"); +is(bestlink('test1.fr', 'test2.es'), 'test2.es', "$msgprefix test1.fr -> test2.es"); + +### beautify_urlpath +$config{po_link_to}='default'; +$msgprefix="beautify_urlpath (po_link_to=default)"; +is(IkiWiki::beautify_urlpath('test1/index.en.html'), './test1/index.en.html', "$msgprefix test1/index.en.html"); +is(IkiWiki::beautify_urlpath('test1/index.fr.html'), './test1/index.fr.html', "$msgprefix test1/index.fr.html"); +$config{po_link_to}='negotiated'; +$msgprefix="beautify_urlpath (po_link_to=negotiated)"; +is(IkiWiki::beautify_urlpath('test1/index.en.html'), './test1/', "$msgprefix test1/index.en.html"); +is(IkiWiki::beautify_urlpath('test1/index.fr.html'), './test1/index.fr.html', "$msgprefix test1/index.fr.html"); diff --git a/t/syntax.t b/t/syntax.t index d09d17f7f..8c96d1d84 100755 --- a/t/syntax.t +++ b/t/syntax.t @@ -6,7 +6,7 @@ use Test::More; my @progs="ikiwiki.in"; my @libs="IkiWiki.pm"; # monotone, external, amazon_s3 skipped since they need perl modules -push @libs, map { chomp; $_ } `find IkiWiki -type f -name \\*.pm | grep -v monotone.pm | grep -v external.pm | grep -v amazon_s3.pm`; +push @libs, map { chomp; $_ } `find IkiWiki -type f -name \\*.pm | grep -v monotone.pm | grep -v external.pm | grep -v amazon_s3.pm | grep -v po.pm`; push @libs, 'IkiWiki/Plugin/skeleton.pm.example'; plan(tests => (@progs + @libs));