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lyx_mirror/po/diff_po.pl

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#! /usr/bin/env perl
# -*- mode: 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 -rHEAD~100 cs.po #fetch git revision and compare
# ./diff_po.pl -r39229 cs.po #fetch svn revision and compare
# ./diff_po.pl -r-1 cs.po #fetch the previous change of cs.po 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) 2010-2013 Kornel Benko, kornel@lyx.org
#
# TODO:
# 1.) Search for good correlations of deleted <==> inserted string
# using Text::Levenshtein or Algorithm::Diff
#
# val: '0' | '1' ;
#
# fuzzyopt: '--display-fuzzy=' val ;
#
# untranslatedopt: '--display-untranslated=' val ;
#
# option: fuzzyopt
# | untranslatedopt
# ;
# options: | options option
# ;
#
# revspec: revision-tag # e.g. 46c00bab7
# | 'HEAD' relative-rev # e.g. HEAD~3, HEAD-3
# | '-' number # -1 == previous commit of the following po-file
# ;
#
# revision: '-r' revspec ;
#
# filespecold: revision | filespec ;
#
# filespec: # path to existing po-file
#
# filespecnew: filespec ;
#
# files: filespecold filespecnew ;
#
# diff: 'diff_po.pl' ' ' options files
#
BEGIN {
use File::Spec;
my $p = File::Spec->rel2abs( __FILE__ );
$p =~ s/[\/\\]?[^\/\\]+$//;
unshift(@INC, "$p");
}
# Prototypes
sub get_env_name($ );
sub buildParentDir($$);
sub searchRepo($);
sub diff_po(@);
sub check_po_file_readable($$);
sub printDiff($$$$);
sub printIfDiff($$$);
sub printExtraMessages($$$);
sub getrev($$$);
#########
use strict;
use parsePoLine;
use Term::ANSIColor qw(:constants);
use File::Temp;
use Cwd qw(abs_path getcwd);
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 $printlines = 1;
my @names = ();
my %options = (
"--display-fuzzy" => 1,
"--display-untranslated" => 1,
);
# Check for options
my ($opt, $val);
sub get_env_name($)
{
my ($e) = @_;
return undef if ($e !~ s/^\-\-//);
$e = uc($e);
$e =~ s/\-/_/g;
return "DIFF_PO_" . $e;
}
# Set option-defaults from environment
# git: not needed, diff is not recursive here
# svn: needed to pass options through --diff-cmd parameter
# hg: needed to pass options through extdiff parameter
for my $opt (keys %options) {
my $e = get_env_name($opt);
if (defined($e)) {
if (defined($ENV{$e})) {
$options{$opt} = $ENV{$e};
}
}
}
while (($opt=$ARGV[0]) =~ s/=(\d+)$//) {
$val = $1;
if (defined($options{$opt})) {
$options{$opt} = $val;
my $e = get_env_name($opt);
if (defined($e)) {
$ENV{$e} = $val;
}
shift(@ARGV);
}
else {
die("illegal option \"$opt\"\n");
}
}
# Check first, if called as standalone program for git
if ($ARGV[0] =~ /^-r(.*)/) {
my $rev = $1;
shift(@ARGV);
if ($rev eq "") {
$rev = shift(@ARGV);
}
# convert arguments to full path ...
for my $argf1 (@ARGV) {
$argf1 = abs_path($argf1);
}
for my $argf (@ARGV) {
#my $argf = abs_path($argf1);
my $baseargf;
my $filedir;
if ($argf =~ /^(.*)\/([^\/]+)$/) {
$baseargf = $2;
$filedir = $1;
chdir($filedir); # set working directory for the repo-command
}
else {
$baseargf = $argf;
$filedir = ".";
}
$filedir = getcwd();
my ($repo, $level) = searchRepo($filedir);
my $relargf = $baseargf; # argf relative to the top-most repo directory
my $topdir;
if (defined($level)) {
my $abspathpo = $filedir; # directory of the po-file
$topdir = $abspathpo;
#print "Level = $level, abs path = $abspathpo\n";
while ($level > 0) {
$topdir =~ s/\/([^\/]+)$//;
$relargf = "$1/$relargf";
$level--;
#print "Level = $level, topdir = $topdir, rel path = $relargf\n";
}
chdir($topdir);
}
else {
print "Could not find the repo-type\n";
exit(-1);
}
#check po-file
check_po_file_readable($baseargf, $relargf);
if ($repo eq ".git") {
my @args = ();
my $tmpfile = File::Temp->new();
$rev = getrev($repo, $rev, $argf);
push(@args, "-L", $argf . " (" . $rev . ")");
push(@args, "-L", $argf . " (local copy)");
print "git show $rev:$relargf\n";
open(FI, "git show $rev:$relargf|");
$tmpfile->unlink_on_destroy( 1 );
while(my $l = <FI>) {
print $tmpfile $l;
}
close(FI);
$tmpfile->seek( 0, SEEK_END ); # Flush()
push(@args, $tmpfile->filename, $argf);
print "===================================================================\n";
diff_po(@args);
}
elsif ($repo eq ".svn") {
# program svnversion needed here
$rev = getrev($repo, $rev, $argf);
# call it again indirectly
my @cmd = ("svn", "diff", "-r$rev", "--diff-cmd", $0, $relargf);
print "cmd = " . join(' ', @cmd) . "\n";
system(@cmd);
}
elsif ($repo eq ".hg") {
# for this to work, one has to edit ~/.hgrc
# Insert there
# [extensions]
# hgext.extdiff =
#
$rev = getrev($repo, $rev, $argf);
my @cmd = ("hg", "extdiff", "-r", "$rev", "-p", $0, $relargf);
print "cmd = " . join(' ', @cmd) . "\n";
system(@cmd);
}
}
}
else {
diff_po(@ARGV);
}
exit($result);
#########################################################
# This routine builds n-th parent-path
# E.g. buildParentDir("abc", 1) --> "abc/.."
# buildParentDir("abc", 4) --> "abc/../../../.."
sub buildParentDir($$)
{
my ($dir, $par) = @_;
if ($par > 0) {
return buildParentDir("$dir/..", $par-1);
}
else {
return $dir;
}
}
# Tries up to 10 parent levels to find the repo-type
# Returns the repo-type
sub searchRepo($)
{
my ($dir) = @_;
for my $parent ( 0 .. 10 ) {
my $f = buildParentDir($dir, $parent);
for my $s (".git", ".svn", ".hg") {
if (-d "$f/$s") {
#print "Found repo on level $parent\n";
return ($s, $parent);
}
}
}
return(""); # not found
}
sub diff_po(@)
{
my @args = @_;
%Messages = ();
%newMessages = ();
%Untranslated = ();
%Fuzzy = ();
@names = ();
my $switchargs = 0;
while(defined($args[0])) {
last if ($args[0] !~ /^\-/);
my $param = shift(@args);
if ($param eq "-L") {
my $name = shift(@args);
push(@names, $name);
}
else {
# ignore other options
}
}
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_po_file_readable($names[0], $args[0]);
check_po_file_readable($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
# mark only, if not in alternative area
if (! $newMessages{$k}->{alternative}) {
$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;
}
}
if ($options{"--display-fuzzy"}) {
printExtraMessages("fuzzy", \%Fuzzy, \@names);
}
if ($options{"--display-untranslated"}) {
printExtraMessages("untranslated", \%Untranslated, \@names);
}
}
sub check_po_file_readable($$)
{
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");
}
}
# Diff of one corresponding entry
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 printExtraMessages($$$)
{
my ($type, $rExtra, $rNames) = @_;
#print "file1 = $rNames->[0], file2 = $rNames->[1]\n";
my @sortedExtraKeys = sort { $a <=> $b;} keys %{$rExtra};
if (@sortedExtraKeys > 0) {
print "Still " . 0 + @sortedExtraKeys . " $type messages found in $rNames->[1]\n";
for my $l (@sortedExtraKeys) {
print "> line $l: \"" . $rExtra->{$l} . "\"\n";
}
}
}
#
# get repository dependent revision representation
sub getrev($$$)
{
my ($repo, $rev, $argf) = @_;
my $revnum;
if ($rev eq "HEAD") {
$revnum = 0;
}
else {
return $rev if ($rev !~ /^(-|HEAD[-~])(\d+)$/);
$revnum = $2;
}
if ($repo eq ".hg") {
# try to get the revision of n-th previous change of the po-file
if (open(FIR, "hg log '$argf'|")) {
my $count = $revnum;
my $res = "-$revnum";
while (my $l = <FIR>) {
chomp($l);
if ($l =~ /:\s+(\d+):([^\s]+)$/) {
$res = $2;
last if ($count-- <= 0);
}
}
close(FIR);
return($res);
}
else {
return "-$revnum";
}
}
elsif ($repo eq ".git") {
# try to get the revision of n-th previous change of the po-file
if (open(FIR, "git log --skip=$revnum -1 '$argf'|")) {
my $res = "HEAD~$revnum";
while (my $l = <FIR>) {
chomp($l);
if ($l =~ /^commit\s+([^\s]+)$/) {
$res = $1;
last;
}
}
close(FIR);
return($res);
}
else {
return("HEAD~$revnum");
}
}
elsif ($repo eq ".svn") {
if (open(FIR, "svn log '$argf'|")) {
my $count = $revnum;
my $res = $rev;
while (my $l = <FIR>) {
chomp($l);
if ($l =~ /^r(\d+)\s+\|/) {
$res = $1;
last if ($count-- <= 0);
}
}
close(FIR);
return $res;
}
else {
if (open(VI, "svnversion |")) {
while (my $r1 = <VI>) {
chomp($r1);
if ($r1 =~ /^((\d+):)?(\d+)M?$/) {
$rev = $3-$revnum;
}
}
close(VI);
}
return $rev;
}
}
return $rev;
}
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