name : podebconf-display-po #!/usr/bin/perl -w use strict; use File::Temp; use Getopt::Long; sub usage { my $rc = shift; print "Usage: podebconf-display-po [-h] [-f frontend] file.po\n"; exit($rc); } my $help = 0; my $frontend = ''; Getopt::Long::Configure('bundling'); Getopt::Long::GetOptions( "h|help" => \$help, "f|frontend=s" => \$frontend, ) || usage(1); usage(0) if $help; usage(1) if $#ARGV != 0; sub unescapechar { my $char = shift; if ($char eq 'n') { # Add a space to conform to debconf templates format return "\n "; } elsif ($char eq 't') { return "\t"; } elsif ($char eq 'r') { return "\r"; } else { # Fallback also works for \\ and \" return $char; } } sub unescapestr { my $text = shift; my $out = ''; my $last = 0; while ($text =~ m/\G([^\\]*)\\([ntr"\\])/g) { $last = pos($text); $out .= $1 . unescapechar($2); } $out .= substr($text, $last); return $out; } # Format 1: No "Type:" in comments # Format 2: Only one reference per string and file, line numbers # match the ones in templates files # Format 3: All references are written into PO files; first template # is numbered from 1001, 2nd from 2001 etc. sub guessFormat { my $text = shift; return 1 unless $text =~ m/^#\. Type:/; while ($text =~ s/#:\s*([^:\s]+):(\d+)/#:/) { my ($file,$line) = ($1, $2); return 2 if $line < 1000; } return 3; } # 1. Read the PO file and write a fake templates file my $fields = {}; my $rfc822Format = 0; # Recode PO files into UTF-8 to avoid stateful encodings { open(PO, "msgconv -t UTF-8 $ARGV[0] |") or die "'msgconv -t UTF-8 $ARGV[0]' failed: $!\n"; local $/ = "\n\n"; while (<PO>) { next unless m/^msgid/m; s/"\n"//g; # Skip header entry next if m/^msgid ""$/m; my $type = ''; my $field = ''; m/^msgid "(.*)"/m; my $msgid = unescapestr($1); m/^msgstr "(.*)"/m; my $msgstr = unescapestr($1); # Escape dollar signs to prevent variable substitutions $msgid =~ s/\$/\${dollarsign}/g; $msgstr =~ s/\$/\${dollarsign}/g; $rfc822Format = guessFormat($_) if $rfc822Format == 0; while (s/#:\s*([^:\s]+):(\d+)/#:/) { my ($file,$line) = ($1, $2); my $tmp = $_; if ($rfc822Format == 1) { # Old format 1 while ($tmp =~ s/^#\.\s+(.*)//m); $field = $1; } else { # New format if ($tmp =~ s/^#\. Type:\s*(\S+)\n//) { $type = lc($1); } # The entropy-text type is a plugin $type = "text" if $type eq "entropy-text"; if ($tmp =~ s/^#\. (\S+)\n//) { $field = $1; } } $field = ucfirst($field); $fields->{$file} = {} unless defined($fields->{$file}); if (defined $fields->{$file}->{$line}) { if ($field eq 'Choices') { if ($msgstr =~ m/,/) { warn "The translation of Choices ". "should not contain commas. ". "Please fix the translation ". "of '$msgid'."; } $fields->{$file}->{$line}->{msgid} .= ", ".$msgid; $fields->{$file}->{$line}->{msgstr} .= ", ".$msgstr; } else { $fields->{$file}->{$line}->{msgid} .= "\n ".($fields->{$file}->{$line}->{msgid} =~ m/\n/ ? ".\n " : '').$msgid; $fields->{$file}->{$line}->{msgstr} .= "\n ".($fields->{$file}->{$line}->{msgstr} =~ m/\n/ ? ".\n " : '').$msgstr; } } else { $fields->{$file}->{$line} = { type => $type, field => $field, msgid => $msgid, msgstr => $msgstr, line => $line, }; } } } close(PO); } # Translated fields in the generated templates file will be written # with an extension which is suitable for current user's environment. # Of course, there will be trouble if there is some encoding mismatch. my $lang = $ENV{LANGUAGE} || $ENV{LC_ALL} || $ENV{LC_MESSAGES} || $ENV{LANG} || $ARGV[0]; # For LANGUAGE $lang =~ s/:.*//; # For filename $lang =~ s{.*/}{}; $lang =~ s/\.po$//; # For locale variables. Charset and modifiers have to be stripped. $lang =~ s/[.@].*//; my $count = 0; my $new = 1; my $choices = 0; my @tempfiles = (); my ($fh, $template) = File::Temp::tempfile() or die "Unable to write temporary files"; push (@tempfiles, $template); $SIG{INT} = sub { unlink (@tempfiles); exit(1); }; my $titles = {}; # TODO: Refactor this code if ($rfc822Format < 3) { for my $file (keys %$fields) { for (sort { $a <=> $b } keys %{$fields->{$file}}) { $titles->{$count} = 1 if ($fields->{$file}->{$_}->{type} =~ m/title/); print $fh "Template: foo/bar$count\n" if $new; if ($fields->{$file}->{$_}->{field} eq 'Description') { print $fh "Type: ". (length($fields->{$file}->{$_}->{type}) ? $fields->{$file}->{$_}->{type} : ($choices ? "select" : "string"))."\n"; } elsif ($fields->{$file}->{$_}->{field} eq 'Choices') { $choices = 1; } elsif ($fields->{$file}->{$_}->{field} eq 'DefaultChoice') { $fields->{$file}->{$_}->{field} = 'Default'; } if ($fields->{$file}->{$_}->{field} eq 'Description' && $choices == 0 && $fields->{$file}->{$_}->{type} =~ m/select/) { # Dummy Choices field, needed to display the # question. print $fh "Choices: dummy1, dummy2\n"; } print $fh "$fields->{$file}->{$_}->{field}: $fields->{$file}->{$_}->{msgid}\n"; print $fh "$fields->{$file}->{$_}->{field}-$lang.UTF-8: $fields->{$file}->{$_}->{msgstr}\n"; $new = 0; if ($fields->{$file}->{$_}->{field} eq 'Description') { $count++; $new = 1; $choices = 0; print $fh "\n"; } } } } else { my $text = ""; my %last = (); for my $file (keys %$fields) { my $oldTemplateNr = 0; for (sort { $a <=> $b } keys %{$fields->{$file}}) { $titles->{$count} = 1 if ($fields->{$file}->{$_}->{type} =~ m/title/); my $newTemplateNr = sprintf("%d", $_ / 1000); if ($newTemplateNr != $oldTemplateNr) { if ($count > 0) { printf $fh "\nTemplate: foo/bar%d\n", $count - 1; print $fh "Type: ". (length($last{type}) ? $last{type} : ($choices ? "select" : "string"))."\n"; if ($choices == 0 && $last{type} =~ m/select/) { # Dummy Choices field, needed to display the # question. print $fh "Choices: dummy1, dummy2\n"; } print $fh "$text\n"; } $count++; $choices = 0; $text = ""; $oldTemplateNr = $newTemplateNr; %last = %{$fields->{$file}->{$_}}; } if ($fields->{$file}->{$_}->{field} eq 'Choices') { $choices = 1; } elsif ($fields->{$file}->{$_}->{field} eq 'DefaultChoice') { $fields->{$file}->{$_}->{field} = 'Default'; } # debconf is kind enough to not display a Select question if there # is only one choice, so add a dummy item if ($fields->{$file}->{$_}->{field} eq 'Choices' && $fields->{$file}->{$_}->{type} eq 'select' && $fields->{$file}->{$_}->{msgid} !~ /,/) { $fields->{$file}->{$_}->{msgid} .= ", dummy2"; $fields->{$file}->{$_}->{msgstr} .= ", dummy2"; } $text .= "$fields->{$file}->{$_}->{field}: $fields->{$file}->{$_}->{msgid}\n"; $text .= "$fields->{$file}->{$_}->{field}-$lang.UTF-8: $fields->{$file}->{$_}->{msgstr}\n"; } } if ($text ne "") { printf $fh "Template: foo/bar%d\n", $count - 1; print $fh "Type: ". (length($last{type}) ? $last{type} : ($choices ? "select" : "string"))."\n"; if ($choices == 0 && $last{type} =~ m/select/) { # Dummy Choices field, needed to display the # question. print $fh "Choices: dummy1, dummy2\n"; } print $fh "$text"; } } close($fh); # 2. Load the templates file in debconf DB use Debconf::Db; use Debconf::AutoSelect qw(:all); use Debconf::Config; my ($dbth, $dbt) = File::Temp::tempfile() or die "Unable to write temporary files"; my ($dbch, $dbc) = File::Temp::tempfile() or die "Unable to write temporary files"; push (@tempfiles, $dbt, $dbc); my %hashconfig = ( driver => "File", mode => '0600', name => "config", backup => 0, filename => $dbc ); my %hashtemplates = ( driver => "File", mode => '0600', name => "templates", backup => 0, filename => $dbt ); $Debconf::Db::config=Debconf::Db->makedriver(%hashconfig); $Debconf::Db::templates=Debconf::Db->makedriver(%hashtemplates); Debconf::Template->load($template, 'display'); Debconf::Db->save; unlink $template; # 3. Display questions $Debconf::Db::config=Debconf::Db->makedriver(%hashconfig); $Debconf::Db::templates=Debconf::Db->makedriver(%hashtemplates); Debconf::Config->frontend($frontend) if length($frontend); my $dc_frontend=make_frontend(); my $dc_confmodule=make_confmodule(); my $code=127; my $cnt = 0; while (1) { $_="RESET foo/bar$cnt\n"; my $ret=$dc_confmodule->process_command($_); if ($titles->{$cnt}) { $_="SETTITLE foo/bar$cnt\n"; $ret=$dc_confmodule->process_command($_); $cnt++; next; } $_="SUBST foo/bar$cnt dollarsign \$\n"; $ret=$dc_confmodule->process_command($_); $_="INPUT high foo/bar$cnt\n"; $ret=$dc_confmodule->process_command($_); ($code, undef)=split(/ /, $ret, 2); last if $code ne 0 && $code ne 30; $_="GO\n"; $ret=$dc_confmodule->process_command($_); ($code, undef)=split(/ /, $ret, 2); $cnt++; } $dc_frontend->shutdown; $dc_confmodule->finish; Debconf::Db->save; unlink $dbt, $dbc; 1;