X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/75fc44ce2fa43c984a1920f40d97631ace84d4f6..a8e8613fa11c1ac0b0f82e159df97d0837ae97e5:/IkiWiki/Plugin/po.pm

diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index fb4741cd4..ca26101b7 100644
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -1,17 +1,34 @@
 #!/usr/bin/perl
 # .po as a wiki page type
+# 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 File::Basename;
+use File::Copy;
+use File::Spec;
+use File::Temp;
+use Memoize;
+
+my %translations;
+memoize("istranslatable");
+memoize("_istranslation");
 
 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 => "targetpage", id => "po", call => \&targetpage);
+	hook(type => "tweakurlpath", id => "po", call => \&tweakurlpath);
+	hook(type => "tweakbestlink", id => "po", call => \&tweakbestlink);
 	hook(type => "filter", id => "po", call => \&filter);
 	hook(type => "htmlize", id => "po", call => \&htmlize);
+	hook(type => "pagetemplate", id => "po", call => \&pagetemplate);
 }
 
 sub getsetup () { #{{{
@@ -20,85 +37,332 @@ sub getsetup () { #{{{
 			safe => 0,
 			rebuild => 1, # format plugin
 		},
-		po_supported_languages => {
+		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' => { 'name' => 'Français' },
-				    'es' => { 'name' => 'Castellano' },
-				    'de' => { 'name' => 'Deutsch' },
+			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 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 (! exists $config{po_link_to} ||
+	    ! defined $config{po_link_to}) {
+	    $config{po_link_to}="default";
+	}
+	if (! exists $config{po_translatable_pages} ||
+	    ! defined $config{po_translatable_pages}) {
+	    $config{po_translatable_pages}="";
+	}
+	if ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) {
+		error(gettext("po_link_to=negotiated requires usedirs to be set"));
+	}
+	push @{$config{wiki_file_prune_regexps}}, qr/\.pot$/;
+} #}}}
+
+sub refreshpot ($) { #{{{
+	my $masterfile=shift;
+	(my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/);
+	my $potfile=File::Spec->catfile($dir, $name . ".pot");
+	my %options = ("markdown" => (pagetype($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';
+	$doc->parse;
+	$doc->writepo($potfile);
+} #}}}
+
+sub refreshpofiles ($@) { #{{{
+	my $masterfile=shift;
+	my @pofiles=@_;
+
+	(my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/);
+	my $potfile=File::Spec->catfile($dir, $name . ".pot");
+	error("[po/refreshpofiles] POT file ($potfile) does not exist") unless (-e $potfile);
+
+	foreach my $pofile (@pofiles) {
+		if (-e $pofile) {
+			my $cmd = "msgmerge -U $pofile $potfile";
+			system ($cmd) == 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;
+
+	# build %translations, using istranslation's side-effect
+	foreach my $page (keys %pagesources) {
+		istranslation($page);
+	}
+
+	# refresh POT and PO files as needed
+	foreach my $file (@$needsbuild) {
+		my $page=pagename($file);
+		if (istranslatable($page)) {
+			refreshpot(srcfile($file));
+			my @pofiles;
+			foreach my $lang (keys %{$translations{$page}}) {
+				push @pofiles, $pagesources{$translations{$page}{$lang}};
+			}
+			refreshpofiles(srcfile($file), map { srcfile($_) } @pofiles);
+		}
+	}
+} #}}}
+
 sub targetpage (@) { #{{{
 	my %params = @_;
         my $page=$params{page};
         my $ext=$params{ext};
 
-	if (! IkiWiki::PageSpec::match_istranslation($page, $page)) {
-		return;
+	if (istranslation($page)) {
+		my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+		if (! $config{usedirs} || $page 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;
+} #}}}
 
-	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
-	if (! $config{usedirs} || $page eq 'index') {
-		return $masterpage.".".$ext.".".$lang;
+sub tweakurlpath ($) { #{{{
+	my %params = @_;
+	my $url=$params{url};
+	if ($config{po_link_to} eq "negotiated") {
+		$url =~ s!/index.$config{po_master_language}{code}.$config{htmlext}$!/!;
 	}
-	else {
-		return $masterpage."/index.".$ext.".".$lang;
+	return $url;
+} #}}}
+
+sub tweakbestlink ($$) { #{{{
+	my %params = @_;
+	my $page=$params{page};
+	my $link=$params{link};
+	if ($config{po_link_to} eq "current"
+	    && istranslatable($link)
+	    && istranslation($page)) {
+		my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+		return $link . "." . $curlang;
 	}
+	return $link;
 } #}}}
 
-# We use filter to convert PO to HTML, since the other plugins might do harm to it.
+our %filtered;
+# We use filter to convert PO to the master page's type,
+# since other plugins 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}));
 
-	if (defined $pagesources{$params{page}} && $pagesources{$params{page}} =~ /\.po$/) {
-		$content = "<pre>" . $content . "</pre>";
+	# decide if this is a PO file that should be converted into a translated document,
+	# and perform various sanity checks
+	if (! istranslation($page) || $filtered{$page}{$destpage}) {
+		return $content;
 	}
 
+	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+	my $file=srcfile(exists $params{file} ? $params{file} : $IkiWiki::pagesources{$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);
+	$doc->process(
+		'po_in_name'	=> \@pos,
+		'file_in_name'	=> \@masters,
+		'file_in_charset'  => 'utf-8',
+		'file_out_charset' => 'utf-8',
+	) or error("[po/filter:$file]: failed to translate");
+	my ($percent,$hit,$queries) = $doc->stats();
+	my $tmpfh = File::Temp->new(TEMPLATE => "/tmp/ikiwiki-po-filter-out.XXXXXXXXXX");
+	my $tmpout = $tmpfh->filename;
+	$doc->write($tmpout) or error("[po/filter:$file] could not write $tmpout");
+	$content = readfile($tmpout) or error("[po/filter:$file] could not read $tmpout");
+	$filtered{$page}{$destpage}=1;
 	return $content;
 } #}}}
 
-# We need this to register the .po file extension
 sub htmlize (@) { #{{{
 	my %params=@_;
-	return $params{content};
-} #}}}
+	my $page = $params{page};
+	my $content = $params{content};
+	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+	my $masterfile = srcfile($pagesources{$masterpage});
 
-package IkiWiki::PageSpec;
+	# 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 match_istranslation ($;@) { #{{{
+sub otherlanguages ($) { #{{{
 	my $page=shift;
-	my $wanted=shift;
+	my @ret;
+	if (istranslatable($page)) {
+		foreach my $lang (sort keys %{$translations{$page}}) {
+			push @ret, {
+				url => urlto($translations{$page}{$lang}, $page),
+				code => $lang,
+				language => $config{po_slave_languages}{$lang},
+				master => 0,
+			};
+		}
+	}
+	elsif (istranslation($page)) {
+		my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+		push @ret, {
+			url => urlto($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},
+				master => 0,
+			} unless ($lang eq $curlang);
+		}
+	}
+	return @ret;
+} #}}}
 
+sub pagetemplate (@) { #{{{
 	my %params=@_;
-	my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+        my $page=$params{page};
+        my $template=$params{template};
+
+	if ($template->query(name => "otherlanguages")) {
+		$template->param(otherlanguages => [otherlanguages($page)]);
+	}
+} # }}}
+
+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 (! IkiWiki::pagetype($page) eq 'po') {
-		return IkiWiki::FailReason->new("is not a PO file");
+	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($lang) > 0)) {
-		return IkiWiki::FailReason->new("is not named like a translation file");
+	    || ! (length($masterpage) > 0) || ! (length($lang) > 0)
+	    || ! defined $pagesources{$masterpage}
+	    || ! defined $config{po_slave_languages}{$lang}) {
+		return 0;
 	}
 
-	if (! defined $IkiWiki::pagesources{$masterpage}) {
-		return IkiWiki::FailReason->new("the master page does not exist");
-	}
+	return istranslatable($masterpage);
+} #}}}
 
-	if (! defined $IkiWiki::config{po_supported_languages}{$lang}) {
-		return IkiWiki::FailReason->new("language $lang is not supported");
+sub istranslation ($) { #{{{
+	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;
+} #}}}
 
-	return IkiWiki::SuccessReason->new("page $page is a translation");
+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");
+	}
 } #}}}
 
 1