Re: Bug#845297: converting translation metadata
On Wed, May 16, 2018 at 01:37:25AM +0100, Steve McIntyre wrote:
>On Wed, May 16, 2018 at 12:05:17AM +0100, Steve McIntyre wrote:
>
>Initial script attached.
After some more discussion on irc with pabs, I've tweaked the script
to use file hashes instead of commit hashes. It's a little slower, but
perfectly usable (~90s runtime on my laptop). Here's the new version,
to allow for comparison.
We'll still need to update the rest of our tools, but step 1 looks OK
I think. Bedtime for now... :-)
--
Steve McIntyre, Cambridge, UK. steve@einval.com
Getting a SCSI chain working is perfectly simple if you remember that there
must be exactly three terminations: one on one end of the cable, one on the
far end, and the goat, terminated over the SCSI chain with a silver-handled
knife whilst burning *black* candles. --- Anthony DeBoer
#!/usr/bin/perl
# This script walks the webwml tree to look for translated files. It
# looks for the wml::debian::translation-check header to see if a file
# is a stranslation of an original, then checks for the revision
# status of the master document.
#
# Part of the effort to switch from CVS to Git
#
# Originally written 2018 by Steve McIntyre <93sam@debian.org>
# © Copyright 2018 Software in the public interest, Inc.
# This program is released under the GNU General Public License, v2.
use strict;
use warnings;
use Getopt::Long;
use Data::Dumper;
use File::Spec::Functions;
use File::Find;
use lib ($0 =~ m|(.*)/|, $1 or ".") ."/Perl";
use Webwml::TransCheck;
my $help = 0;
my $verbose = 0;
my $dry_run = 0;
my $revs_file = "";
my %rev_map;
sub usage {
print <<'EOT';
Usage: switch_to_git_translations.pl [options]
Options:
--help display this message
--verbose run verbosely
--dry-run do not modify translation-check headers
--revisions=REVISIONS location of the cvs2git revisions map file
Find all wml files under the current directory, updating revisions for
translations.
EOT
exit(0);
}
# log very verbose messages
sub vvlog {
if ($verbose >= 2) {
print STDOUT $_[0] . "\n";
}
}
# log verbose messages
sub vlog {
if ($verbose >= 1) {
print STDOUT $_[0] . "\n";
}
}
# Parse the revisions file for use, building a hash of the git and cvs versions for each file
sub parse_revisions
{
my $revs_file = shift;
open(IN, "<", "$revs_file") or die "Can't open revisions file \$revs_file\" for reading: $!\n";
while (my $line = <IN>) {
chomp $line;
my ($file, $cvs_ver, $commit_hash);
if ($line =~ m,^(\S+) ([.\d]+) ([[:xdigit:]]+)$,)
{
$file = $1;
$cvs_ver = $2;
$commit_hash = $3;
$rev_map{"$file"}{"$cvs_ver"}{"commit_hash"} = $commit_hash;
} else {
die "Failed to parse revisions file at line $.\n";
}
vvlog("Found file $file with CVS version $cvs_ver in commit hash $commit_hash");
}
close IN;
vlog("Parsed revisions file \"$revs_file\", found revisions for " . scalar(keys %rev_map) . " files");
}
# return a list of filenames with the given extension
sub find_files_ext
{
my $dir = shift or die('Internal error: No dir specified');
my $ext = shift or die('Internal error: No ext specified');
my @files;
find( sub { if (-f and m/\.$ext$/) { my $filename = $File::Find::name; $filename =~ s,\.\/,,; push @files, $filename }}, $dir );
return @files;
}
# Update the translation-check metadata header in a wml file
sub update_wml_file_metadata
{
my $file = shift;
my $revision = shift;
my $hash = shift;
my $text = "";
open (IN, "< $file") or die "Can't open $file for reading: $!\n";
while (<IN>) {
if (m/^#use wml::debian::translation-check/) {
s/(translation="?)($revision)("?)/$1$hash$3/;
}
$text .= $_;
}
close(IN);
open(OUT, "> $file") or die "Can't open $file for writing: $!\n";
print OUT $text;
close OUT;
}
# Parse a wml file, and see if there's a translation-check header. If
# so, use the rev_map data to switch the translation information from
# the cvs version to the git hash *if available*. If it's not
# available, report an error.
sub parse_wml_file
{
my $file = shift;
my $info = 0; # Do we have any translation header info at all?
my $tc = Webwml::TransCheck->new("$file") or die "Failed transcheck: $!\n";
vlog("Looking at wml file $file");
my $target_lang = "english";
my $maint = $tc->maintainer();
if (defined($maint)) {
vvlog(" Maintainer: $maint");
$info += 1;
}
my $revision = $tc->revision();
if (defined($revision)) {
vvlog(" Revision: $revision");
$info += 1;
}
my $original = $tc->original();
if (defined($original)) {
vvlog(" Original: $original");
$info += 1;
$target_lang = $original;
}
my $mindelta = $tc->mindelta();
if (defined($mindelta)) {
vvlog(" Mindelta: $mindelta");
$info += 1;
}
my $maxdelta = $tc->maxdelta();
if (defined($maxdelta)) {
vvlog(" Maxdelta: $maxdelta");
$info += 1;
}
if ($info > 0) {
my $targetfile = $file;
$targetfile =~ s,^[^/]+,$target_lang,;
vvlog(" Depends on $targetfile");
if (defined($revision)) {
# Do we have a cvs->git map for that file and revision?
my $hash = $rev_map{"$targetfile"}{"$revision"}{"commit_hash"};
my $file_hash = $rev_map{"$targetfile"}{"$revision"}{"file_hash"};
if (defined $hash) {
if (!defined $file_hash) {
$file_hash = `git ls-tree -r $hash $targetfile`;
if ($file_hash =~ m/^\s*\d+\s*blob\s+([[:xdigit:]]+)\s+\S+$/) {
$file_hash = $1;
}
# Cache the result
$rev_map{"$targetfile"}{"$revision"}{"file_hash"} = $file_hash;
}
vlog(" Depends on $targetfile with cvs rev $revision, commit hash $hash, file_hash $file_hash");
} else {
vlog(" Looking up $targetfile with cvs rev $revision, no mapping found");
return 1;
}
if (!$dry_run) {
vlog (" Updating the file data");
update_wml_file_metadata($file, $revision, $file_hash);
}
} else {
vlog(" But no revision data!");
return 1;
}
}
}
# open(IN, "<", "$file") or die "Can't open file \$wml_file\" for reading: $!#\n";
# while (my $line = <IN>) {
# chomp $line;
# if ($line =~ m/^#use wml::debian::translation-check/) {
# my $original="english"; # default
# }
# }
#}
# "main"
if (not GetOptions ("help" => \$help,
"verbose=i" => \$verbose,
"dry-run" => \$dry_run,
"revisions=s" => \$revs_file))
{
warn "Try `$0 --help' for more information.\n";
exit(1);
}
if ($help) {
usage();
}
if (! -f $revs_file) {
die "Can't open revisions file, abort!\n";
}
parse_revisions($revs_file);
my @wmlfiles = sort(find_files_ext(".", 'wml'));
vlog("Found " . scalar(@wmlfiles) . " files to work on\n");
for my $wml_file (@wmlfiles) {
parse_wml_file($wml_file);
}
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