diff options
| -rwxr-xr-x | compress_files | 135 |
1 files changed, 70 insertions, 65 deletions
diff --git a/compress_files b/compress_files index bc2d7d2..b8b9d73 100755 --- a/compress_files +++ b/compress_files @@ -23,7 +23,7 @@ sub basename { ################################################################################ # Returns the directory name of the argument passed to it. sub dirname { - my $fn=shift; + my $fn = shift; $fn =~ s!^(.*)/.*?$!$1!; return $fn; } @@ -34,32 +34,31 @@ sub dirname { # parameters that are the command and any parameters that should be passed to # it each time. sub xargs { - my $args=shift; + my $args = shift; # The kernel can accept command lines up to 20k worth of characters. - my $command_max=20000; + my $command_max = 20000; # Figure out length of static portion of command. - my $static_length=0; + my $static_length = 0; foreach (@_) { - $static_length+=length($_)+1; + $static_length += length($_)+1; } - + my @collect; - my $length=$static_length; + my $length = $static_length; foreach (@$args) { - if (length($_) + 1 + $static_length > $command_max) { - error(qq(This command is greater than the maximum command size allowed by the kernel, and cannot be split up further. What on earth are you doing? "@_ $_")); - } - $length+=length($_) + 1; - if ($length < $command_max) { - push @collect, $_; - } - else { - system(@_,@collect) if $#collect > -1; - @collect = $_; - $length=$static_length + length($_) + 1; - } + if (length($_) + 1 + $static_length > $command_max) { + error(qq(This command is greater than the maximum command size allowed by the kernel, and cannot be split up further. What on earth are you doing? "@_ $_")); + } + $length+=length($_) + 1; + if ($length < $command_max) { + push @collect, $_; + } else { + system(@_,@collect) if $#collect > -1; + @collect = $_; + $length = $static_length + length($_) + 1; + } } system(@_,@collect) if $#collect > -1; } @@ -73,26 +72,25 @@ sub find_so_man() { # The -s test is becuase a .so file tends to be small. We don't want # to open every man page. 1024 is arbitrary. if (! -f $_ || -s $_ > 1024) { - return; + return; } # Test first line of file for the .so thing. my $SOTEST; open($SOTEST, $_); - my $l=<$SOTEST>; + my $l = <$SOTEST>; close $SOTEST; if ($l =~ m/\.so\s+(.*)/) { - my $solink=$1; - # This test is here to prevent links like ... man8/../man8/foo.8 - if (basename($File::Find::dir) eq dirname($solink)) { - $solink=basename($solink); - } - else { - $solink="../$solink"; - } - - push @sofiles, "$File::Find::dir/$_"; - push @sodests, $solink; + my $solink=$1; + # This test is here to prevent links like ... man8/../man8/foo.8 + if (basename($File::Find::dir) eq dirname($solink)) { + $solink = basename($solink); + } else { + $solink = "../$solink"; + } + + push @sofiles, "$File::Find::dir/$_"; + push @sodests, $solink; } } @@ -118,68 +116,75 @@ my @files = split(/\n/, `find usr/info usr/share/info usr/man usr/share/man usr/ if ($ext ne '.gz') { my @gz_files = split(/\n/, `find usr/info usr/share/info usr/man usr/share/man usr/X11*/man usr/lib/perl5/man -type f -name "*.gz" 2>/dev/null || true`); - if (@gz_files) { xargs(\@gz_files, "gzip", "-d"); $? ? die "Something wrong with the decompression of the gzip man/info file, fix this ASAP" : exec($0) } + if (@gz_files) { + xargs(\@gz_files, "gzip", "-d"); + $? ? die "Something wrong with the decompression of the gzip man/info file, fix this ASAP" : exec($0) + } } if ($ext ne '.bz2') { my @bz_files = split(/\n/, `find usr/info usr/share/info usr/man usr/share/man usr/X11*/man usr/lib/perl5/man -type f -name "*.bz2" 2>/dev/null || true`); - if (@bz_files) { xargs(\@bz_files, "bzip2", "-d"); $? ? die "Something wrong with the decompression of the bzip2 man/info file, fix this ASAP" : exec($0) } + if (@bz_files) { + xargs(\@bz_files, "bzip2", "-d"); + $? ? die "Something wrong with the decompression of the bzip2 man/info file, fix this ASAP" : exec($0) + } } if ($ext ne '.lzma') { my @lzma_files = split(/\n/, `find usr/info usr/share/info usr/man usr/share/man usr/X11*/man usr/lib/perl5/man -type f -name "*.lzma" 2>/dev/null || true`); - if (@lzma_files) { xargs(\@lzma_files, "lzmash", "-d"); $? ? die "Something wrong with the decompression of the lzma man/info file, fix this ASAP" : exec($0) } + if (@lzma_files) { + xargs(\@lzma_files, "lzmash", "-d"); + $? ? die "Something wrong with the decompression of the lzma man/info file, fix this ASAP" : exec($0) + } } # Exclude files from compression. if (@files && defined($ENV{EXCLUDE_FROM_COMPRESS})) { my @new; foreach (@files) { - my $ok = 1; - foreach my $x (split(' ', $ENV{EXCLUDE_FROM_COMPRESS})) { - if (/\Q$x\E/) { - $ok=''; - last; - } - } - push @new,$_ if $ok; + my $ok = 1; + foreach my $x (split(' ', $ENV{EXCLUDE_FROM_COMPRESS})) { + if (/\Q$x\E/) { + $ok = ''; + last; + } + } + push @new,$_ if $ok; } - @files=@new; + @files = @new; } - + # Look for files with hard links. If we are going to compress both, # we can preserve the hard link across the compression and save # space in the end. my @f; my (%hardlinks, %seen); foreach (@files) { - my ($dev, $inode, undef, $nlink)=stat($_); + my ($dev, $inode, undef, $nlink) = stat($_); if ($nlink > 1) { - if (! $seen{"$inode.$dev"}) { - $seen{"$inode.$dev"} = $_; - push @f, $_; - } - else { - # This is a hardlink. - $hardlinks{$_} = $seen{"$inode.$dev"}; - } - } - else { - push @f, $_; + if (! $seen{"$inode.$dev"}) { + $seen{"$inode.$dev"} = $_; + push @f, $_; + } else { + # This is a hardlink. + $hardlinks{$_} = $seen{"$inode.$dev"}; + } + } else { + push @f, $_; } } if (@f) { # Make executables not be anymore. xargs(\@f, "chmod", "a-x"); - + my @command = $ext eq '.gz' ? qw/gzip -9f/ : $ext eq '.bz2' ? qw/bzip2 -9f/ : $ext eq '.lzma' ? qw/lzma -9f --text/ - : qw// + : qw// ; xargs(\@f, @command); } - + # Now change over any files we can that used to be hard links so # they are again. foreach (keys %hardlinks) { @@ -198,13 +203,13 @@ while (<$FIND>) { my ($directory) = m!(.*)/!; my $linkval = readlink($_); if (! -e "$directory/$linkval" && -e "$directory/$linkval$ext") { - system("rm", "-f", $_); - system("ln", "-sf", "$linkval$ext", "$_$ext"); + system("rm", "-f", $_); + system("ln", "-sf", "$linkval$ext", "$_$ext"); } elsif (! -e "$directory/$linkval" && ! -e "$directory/$linkval$ext" && $directory =~ m|man/|) { - #Bad link go on nowhere (any better idea) ? - unlink($_); + #Bad link go on nowhere (any better idea) ? + unlink($_); } - + } # compress_files ends here |