lyx_mirror/po/diff_po.pl

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Perl
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#! /usr/bin/env perl
# file diff_po.pl
# script to compare changes between translation files before merging them
#
# Examples of usage:
# ./diff_po.pl cs.po.old cs.po
# svn diff -r38367 --diff-cmd ./diff_po.pl cs.po
# git difftool --extcmd=./diff_po.pl sk.po
# ./diff_po.pl -r HEAD~100 cs.po #fetch git revision and compare
# ./diff_po.pl -r39229 cs.po #fetch svn revision and compare
#
# This file 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 2 of the License, or (at your option) any later version.
#
# This software 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 software; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Copyright (c) 1010-2011 Kornel Benko, kornel@lyx.org
#
# TODO:
# 1.) Check for ".git" or ".svn" to decide about revisioning
# 2.) Search for good correlations of deleted <==> inserted string
# using Text::Levenshtein or Algorithm::Diff
use strict;
use Term::ANSIColor qw(:constants);
use File::Temp;
my ($status, $foundline, $msgid, $msgstr, $fuzzy);
my %Messages = (); # Used for original po-file
my %newMessages = (); # new po-file
my %Untranslated = (); # inside new po-file
my %Fuzzy = (); # inside new po-file
my $result = 0; # exit value
my $printlines = 1;
my @names = ();
# Check first, if called as standalone program for git
if ($ARGV[0] =~ /^-r(.*)/) {
my $rev = $1;
shift(@ARGV);
if ($rev eq "") {
$rev = shift(@ARGV);
}
for my $argf (@ARGV) {
my $baseargf;
my $filedir;
if ($argf =~ /^(.*)\/([^\/]+)$/) {
$baseargf = $2;
$filedir = $1;
}
else {
$baseargf = $argf;
$filedir = ".";
}
if (-d "$filedir/../.git") {
my @args = ();
my $tmpfile = File::Temp->new();
push(@args, "-L", $argf . " (" . $rev . ")");
push(@args, "-L", $argf . " (local copy)");
open(FI, "git show $rev:po/$baseargf|");
$tmpfile->unlink_on_destroy( 1 );
while(my $l = <FI>) {
print $tmpfile $l;
}
close(FI);
push(@args, $tmpfile->filename, $argf);
print "===================================================================\n";
&diff_po(@args);
}
elsif (-d "$filedir/.svn") {
# call it again indirectly
my @cmd = ("svn", "diff", "-r$rev", "--diff-cmd", $0, $argf);
print "cmd = " . join(' ', @cmd) . "\n";
system(@cmd);
}
}
}
else {
&diff_po(@ARGV);
}
exit($result);
#########################################################
sub diff_po($$)
{
my @args = @_;
%Messages = ();
%newMessages = ();
%Untranslated = ();
%Fuzzy = ();
@names = ();
while(defined($args[0])) {
last if ($args[0] !~ /^\-/);
my $param = shift(@args);
if ($param eq "-L") {
my $name = shift(@args);
push(@names, $name);
}
}
if (! defined($names[0])) {
push(@names, "original");
}
if (! defined($names[1])) {
push(@names, "new");
}
if (@args != 2) {
die("names = \"", join('" "', @names) . "\"... args = \"" . join('" "', @args) . "\" Expected exactly 2 parameters");
}
&check($names[0], $args[0]);
&check($names[1], $args[1]);
&parse_po_file($args[0], \%Messages);
&parse_po_file($args[1], \%newMessages);
my @MsgKeys = &getLineSortedKeys(\%newMessages);
print RED "<<< \"$names[0]\"\n", RESET;
print GREEN ">>> \"$names[1]\"\n", RESET;
for my $k (@MsgKeys) {
if ($newMessages{$k}->{msgstr} eq "") {
# this is still untranslated string
$Untranslated{$newMessages{$k}->{line}} = $k;
}
elsif ($newMessages{$k}->{fuzzy}) {
#fuzzy string
$Fuzzy{$newMessages{$k}->{line}} = $k;
}
if (exists($Messages{$k})) {
&printIfDiff($k, $Messages{$k}, $newMessages{$k});
delete($Messages{$k});
delete($newMessages{$k});
}
}
if (0) {
@MsgKeys = sort keys %Messages, keys %newMessages;
for my $k (@MsgKeys) {
if (defined($Messages{$k})) {
$result |= 8;
print "deleted message\n";
print "< line = " . $Messages{$k}->{line} . "\n" if ($printlines);
print RED "< fuzzy = " . $Messages{$k}->{fuzzy} . "\n", RESET;
print RED "< msgid = \"$k\"\n", RESET;
print RED "< msgstr = \"" . $Messages{$k}->{msgstr} . "\"\n", RESET;
}
if (defined($newMessages{$k})) {
$result |= 16;
print "new message\n";
print "> line = " . $newMessages{$k}->{line} . "\n" if ($printlines);
print GREEN "> fuzzy = " . $newMessages{$k}->{fuzzy} . "\n", RESET;
print GREEN "> msgid = \"$k\"\n", RESET;
print GREEN "> msgstr = \"" . $newMessages{$k}->{msgstr} . "\"\n", RESET;
}
}
}
else {
@MsgKeys = &getLineSortedKeys(\%Messages);
for my $k (@MsgKeys) {
$result |= 8;
print "deleted message\n";
print "< line = " . $Messages{$k}->{line} . "\n" if ($printlines);
print RED "< fuzzy = " . $Messages{$k}->{fuzzy} . "\n", RESET;
print RED "< msgid = \"$k\"\n", RESET;
print RED "< msgstr = \"" . $Messages{$k}->{msgstr} . "\"\n", RESET;
}
@MsgKeys = &getLineSortedKeys(\%newMessages);
for my $k (@MsgKeys) {
$result |= 16;
print "new message\n";
print "> line = " . $newMessages{$k}->{line} . "\n" if ($printlines);
print GREEN "> fuzzy = " . $newMessages{$k}->{fuzzy} . "\n", RESET;
print GREEN "> msgid = \"$k\"\n", RESET;
print GREEN "> msgstr = \"" . $newMessages{$k}->{msgstr} . "\"\n", RESET;
}
}
&printExtraMessages("fuzzy", \%Fuzzy);
&printExtraMessages("untranslated", \%Untranslated);
}
sub check($$)
{
my ($spec, $filename) = @_;
if (! -e $filename ) {
die("$spec po file does not exist");
}
if ( ! -f $filename ) {
die("$spec po file is not regular");
}
if ( ! -r $filename ) {
die("$spec po file is not readable");
}
}
sub printDiff($$$$)
{
my ($k, $nk, $rM, $rnM) = @_;
print "diffline = " . $rM->{line} . "," . $rnM->{line} . "\n" if ($printlines);
print " msgid = \"$k\"\n";
if ($rM->{fuzzy} eq $rnM->{fuzzy}) {
print " fuzzy = " . $rM->{fuzzy} . "\n" if ($printlines);
}
else {
print RED "< fuzzy = " . $rM->{fuzzy} . "\n", RESET;
}
print RED "< msgstr = " . $rM->{msgstr} . "\n", RESET;
if ($k ne $nk) {
print GREEN "> msgid = \"$nk\"\n", RESET;
}
if ($rM->{fuzzy} ne $rnM->{fuzzy}) {
print GREEN "> fuzzy = " . $rnM->{fuzzy} . "\n", RESET;
}
print GREEN "> msgstr = " . $rnM->{msgstr} . "\n", RESET;
print "\n";
}
sub printIfDiff($$$)
{
my ($k, $rM, $rnM) = @_;
my $doprint = 0;
$doprint = 1 if ($rM->{fuzzy} != $rnM->{fuzzy});
$doprint = 1 if ($rM->{msgstr} ne $rnM->{msgstr});
if ($doprint) {
$result |= 4;
&printDiff($k, $k, $rM, $rnM);
}
}
sub parse_po_file($$)
{
my ($file, $rMessages) = @_;
if (open(FI, '<', $file)) {
$status = "normal";
$fuzzy = 0;
my $lineno = 0;
while (my $line = <FI>) {
$lineno++;
&parse_po_line($line, $lineno, $rMessages);
}
&parse_po_line("", $lineno + 1, $rMessages);
close(FI);
}
}
sub parse_po_line($$$)
{
my ($line, $lineno, $rMessages) = @_;
chomp($line);
if ($status eq "normal") {
if ($line =~ /^#, fuzzy/) {
$fuzzy = 1;
}
elsif ($line =~ s/^msgid\s+//) {
$foundline = $lineno;
$status = "msgid";
$msgid = "";
&parse_po_line($line);
}
}
elsif ($status eq "msgid") {
if ($line =~ /^\s*"(.*)"\s*/) {
$msgid .= $1;
}
elsif ($line =~ s/^msgstr\s+//) {
$status = "msgstr";
$msgstr = "";
&parse_po_line($line);
}
}
elsif ($status eq "msgstr") {
if ($line =~ /^\s*"(.*)"\s*/) {
$msgstr .= $1;
}
else {
if ($msgid ne "") {
$rMessages->{$msgid}->{line} = $foundline;
$rMessages->{$msgid}->{fuzzy} = $fuzzy;
$rMessages->{$msgid}->{msgstr} = $msgstr;
}
$fuzzy = 0;
$status = "normal";
}
}
else {
die("invalid status");
}
}
sub getLineSortedKeys($)
{
my ($rMessages) = @_;
return sort {$rMessages->{$a}->{line} <=> $rMessages->{$b}->{line};} keys %{$rMessages};
}
sub printExtraMessages($$)
{
my ($type, $rExtra) = @_;
my @UntranslatedKeys = sort { $a <=> $b;} keys %{$rExtra};
if (@UntranslatedKeys > 0) {
print "Still " . 0 + @UntranslatedKeys . " $type messages found in $ARGV[1]\n";
for my $l (@UntranslatedKeys) {
print "> line $l: \"" . $rExtra->{$l} . "\"\n";
}
}
}