build: add script to extract i18n tags from sources and generate *.po snippets
[project/luci.git] / build / i18n-po2lua.pl
1 #!/usr/bin/perl
2
3 @ARGV == 2 || die "Usage: $0 <source-dir> <dest-dir>\n";
4
5 my $source_dir  = shift @ARGV;
6 my $target_dir  = shift @ARGV;
7
8 if( ! -d $target_dir )
9 {
10         system('mkdir', '-p', $target_dir);
11 }
12
13
14 my %target_strings;
15
16
17 if( open F, "find $source_dir -type f -name '*.po' |" )
18 {
19         while( chomp( my $file = readline F ) )
20         {
21                 if( open L, "< $file" )
22                 {
23                         my ( $basename ) = $file =~ m{.+/([^/]+\.[\w\-]+)\.po$};
24
25                         if( open D, "> $target_dir/$basename.lua" )
26                         {
27                                 printf "Generating %-40s ", "$target_dir/$basename.lua";
28
29                                 my ( $k, $v );
30
31                                 while( chomp( my $line = readline L ) )
32                                 {
33                                         if( $line =~ /^msgid "(.+)"/ )
34                                         {
35                                                 $k = $1;
36                                         }
37                                         elsif( $k && $line =~ /^msgstr "(.*)"/ )
38                                         {
39                                                 $v = $1;
40                                         }
41                                         elsif( $k && defined($v) && $line =~ /^"(.+)"/ )
42                                         {
43                                                 $v .= $1;
44                                         }
45                                         else
46                                         {
47                                                 if( $k && defined($v) )
48                                                 {
49                                                         $v =~ s/\\(['"\\])/$1/g;
50                                                         $v =~ s/(['\\])/\\$1/g;
51
52                                                         printf D "%s%s='%s'\n", $v ? '' : '--', $k, $v;
53                                                 }
54                 
55                                                 $k = $v = undef;
56                                         }
57                                 }
58
59                                 print "done\n";
60
61                                 close D;
62                         }
63
64                         close L;
65                 }
66         }
67
68         close F;
69 }