3 # Compresses files and makes sure that symlinks pointing to the
4 # compressed files get fixed.
7 use Debian::Debhelper::Dh_Lib;
10 foreach $PACKAGE (@{$dh{DOPACKAGES}}) {
11 $TMP=tmpdir($PACKAGE);
12 $compress=pkgfile($PACKAGE,"compress");
14 # Run the file name gathering commands from within the directory
15 # structure that will be effected.
17 verbose_print("cd $TMP");
18 chdir($TMP) || error("Can't cd to $TMP: $!");
20 # Figure out what files to compress.
22 # First of all, deal with any files specified right on the command line.
23 if (($PACKAGE eq $dh{FIRSTPACKAGE} || $dh{PARAMS_ALL}) && @ARGV) {
27 # The config file is a sh script that outputs the files to be compressed
28 # (typically using find).
29 push @files, split(/\n/,`sh $olddir/$compress 2>/dev/null`);
32 # By default, fall back to what the policy manual says to compress.
33 # Note that all the excludes of odd things like _z are because
34 # gzip refuses to compress such files, assumming they are zip files.
35 # I looked at the gzip source to get the complete list of such
36 # extensions: ".gz", ".z", ".taz", ".tgz", "-gz", "-z", "_z"
38 push @files, split(/\n/,`
39 find usr/info usr/share/info usr/man usr/share/man usr/X11*/man -type f ! -name "*.gz" 2>/dev/null || true;
40 find usr/doc usr/share/doc -type f \\( -size +4k -or -name "changelog*" \\) \\
41 \\( -name changelog.html -or ! -iname "*.htm*" \\) \\
42 ! -iname "*.gif" ! -iname "*.png" ! -iname "*.jpg" ! -iname "*.jpeg" ! -iname "*.gz" \\
43 ! -iname "*.taz" ! -iname "*.tgz" ! -iname "*.z" \\
44 ! -iname "*-gz" ! -iname "*-z" ! -iname "*_z" \\
45 ! -name "copyright" 2>/dev/null || true
49 # Exclude files from compression.
50 if (@files && defined($dh{EXCLUDE}) && $dh{EXCLUDE}) {
54 foreach $x (@{$dh{EXCLUDE}}) {
65 # Look for files with hard links. If we are going to compress both,
66 # we can preserve the hard link across the compression and save
71 ($dev, $inode, undef, $nlink)=stat($_);
73 if (! $seen{"$inode.$dev"}) {
74 $seen{"$inode.$dev"}=$_;
79 $hardlinks{$_}=$seen{"$inode.$dev"};
88 # Make executables not be anymore.
89 xargs(\@f,"chmod","a-x");
91 xargs(\@f,"gzip","-9f");
94 # Now change over any files we can that used to be hard links so
96 foreach (keys %hardlinks) {
100 doit("ln","$hardlinks{$_}.gz","$_.gz");
103 verbose_print("cd $olddir");
106 # Fix up symlinks that were pointing to the uncompressed files.
107 open (FIND,"find $TMP -type l |");
110 ($directory)=m:(.*)/:;
111 $linkval=readlink($_);
112 if (! -e "$directory/$linkval" && -e "$directory/$linkval.gz") {
114 doit("ln","-sf","$linkval.gz","$_.gz");