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authorOlivier Thauvin <nanardon@mandriva.org>2004-12-06 11:11:11 +0000
committerOlivier Thauvin <nanardon@mandriva.org>2004-12-06 11:11:11 +0000
commitc97874ddf56237a4fe4ddf195a50faa39c912e1a (patch)
tree73f6533c5bdb0ea4004d4031a6c3ecfbfa1ebb9b /packdrake-pm
parentc8adf1612e4a9af4d516627b14462149f149d3f9 (diff)
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- bump to packdrakeng
Diffstat (limited to 'packdrake-pm')
-rw-r--r--packdrake-pm/Makefile.PL9
-rw-r--r--packdrake-pm/packdrake.pm515
2 files changed, 0 insertions, 524 deletions
diff --git a/packdrake-pm/Makefile.PL b/packdrake-pm/Makefile.PL
deleted file mode 100644
index 71f56ac..0000000
--- a/packdrake-pm/Makefile.PL
+++ /dev/null
@@ -1,9 +0,0 @@
-use ExtUtils::MakeMaker;
-# See lib/ExtUtils/MakeMaker.pm for details of how to influence
-# the contents of the Makefile that is written.
-
-WriteMakefile(
- 'NAME' => 'packdrake',
- 'VERSION_FROM' => 'packdrake.pm',
-);
-
diff --git a/packdrake-pm/packdrake.pm b/packdrake-pm/packdrake.pm
deleted file mode 100644
index 2b66f8a..0000000
--- a/packdrake-pm/packdrake.pm
+++ /dev/null
@@ -1,515 +0,0 @@
-package packdrake;
-
-use strict;
-use vars qw($VERSION);
-
-$VERSION = "0.04";
-
-=head1 NAME
-
-packdrake - Simple Archive Extractor/Builder
-
-=head1 SYNOPSIS
-
- require packdrake;
-
- packdrake::cat_archive("/export/media/media_info/hdlist.cz",
- "/export/media/media_info/hdlist2.cz");
- packdrake::list_archive("/tmp/modules.cz2");
-
- my $packer = new packdrake("/tmp/modules.cz2");
- $packer->extract_archive("/tmp", "file1.o", "file2.o");
-
- my $packer = packdrake::build_archive
- (\*STDIN, "/lib/modules", "/tmp/modules.cz2",
- 400000, "bzip2", "bzip2 -d");
- my $packer = packdrake::build_archive
- (\*STDIN, "/export/media/media_info/hdlist.cz",
- 400000, "gzip -9", "gzip -d");
-
-=head1 DESCRIPTION
-
-C<packdrake> is a very simple archive extractor and builder used by Mandrakesoft.
-
-=head1 IMPLEMENTATION
-
-uncompressing sheme is:
- | |
- | | | |
- $off1 =|*| } | |
- |*| } $off2 =|+| }
- |*| } $siz1 => 'gzip/bzip2 -d' => |+| } $siz2 => $filename
- |*| } |+| }
- |*| } | |
- | | | |
- | | | |
- | |
-where %data has the following format:
- { 'filename' => [ 'f', $off1, $siz1, $off2, $siz2 ] }
-except for symbolink link where it is:
- { 'filename_symlink' => [ 'l', $symlink_value ] }
-and directory where it is only
- { 'filename_directory' => [ 'd' ] }
-as you can see, there is no owner, group, filemode... an extension could be
-made with 'F' (instead of 'f'), 'L' instead of 'l' for exemple.
-we do not need them as it is used for DrakX for fast archive extraction and
-owner/filemode is for user running only (ie root).
-
-archive file contains concatenation of all bzip2'ed group of files whose
-filenames are on input,
-then a TOC (describing %data, concatenation of toc_line) follow and a
-TOC_TRAILER for summary.
-
-=head1 SEE ALSO
-
-The packdrake command is a simple executable perl script using this module.
-
-=head1 COPYRIGHT
-
-Copyright (C) 2000-2004 Mandrakesoft <fpons@mandrakesoft.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-=cut
-
-#- taken from DrakX common stuff, for conveniance and modified to match our expectation.
-sub dirname { @_ == 1 or die "packdrake: usage: dirname <name>\n"; local $_ = shift; s|[^/]*/*\s*$||; s|(.)/*$|$1|; $_ || '.' }
-sub basename { @_ == 1 or die "packdrake: usage: basename <name>\n"; local $_ = shift; s|/*\s*$||; s|.*/||; $_ }
-sub mkdir_ {
- my $root = dirname $_[0];
- if (-e $root) {
- -d $root or die "packdrake: mkdir: error creating directory $_[0]: $root is a file and i won't delete it\n";
- } else {
- mkdir_($root);
- }
- -d $_[0] and return;
- mkdir $_[0], 0755 or die "packdrake: mkdir: error creating directory $_[0]: $!\n";
-}
-sub symlink_ { mkdir_ dirname($_[1]); unlink $_[1]; symlink $_[0], $_[1] }
-
-#- for building an archive, returns the string containing the file and data associated.
-sub build_toc_line {
- my ($file, $data) = @_;
-
- for ($data->[0]) {
- return(/l/ && pack("anna*", 'l', length($file), length($data->[1]), "$file$data->[1]") ||
- /d/ && pack("ana*", 'd', length($file), $file) ||
- /f/ && pack("anNNNNa*", 'f', length($file), @$data[1..4], $file) ||
- die "packdrake: unknown extension $_\n");
- }
-}
-
-sub build_toc_trailer {
- my ($packer) = @_;
-
- #- 'cz[0' is toc_trailer header where 0 is version information, only 0 now.
- #- '0]cz' is toc_trailer trailer that match the corresponding header for information.
- pack "a4NNNNa40a4", ($packer->{header},
- $packer->{toc_d_count}, $packer->{toc_l_count}, $packer->{toc_f_count},
- $packer->{toc_str_size}, $packer->{uncompress},
- $packer->{trailer});
-}
-
-#- degraded reading of toc at end of archive, do not check filelist.
-sub read_toc_trailer {
- my ($packer, $file) = @_;
- my $toc_trailer;
-
- local *ARCHIVE;
- open ARCHIVE, "<$file" or die "packdrake: cannot open archive file $file\n";
- $packer->{archive} = $file;
-
- #- seek to end of file minus 64, size of trailer.
- #- read toc_trailer, check header/trailer for version 0.
- seek ARCHIVE, -64, 2;
- read ARCHIVE, $toc_trailer, 64 or die "packdrake: cannot read toc_trailer of archive file $file\n";
- @$packer{qw(header toc_d_count toc_l_count toc_f_count toc_str_size uncompress trailer)} =
- unpack "a4NNNNZ40a4", $toc_trailer;
- $packer->{header} eq 'cz[0' && $packer->{trailer} eq '0]cz' or die "packdrake: bad toc_trailer in archive file $file\n";
-
- close ARCHIVE;
-}
-
-#- read toc at end of archive.
-sub read_toc {
- my ($packer, $file) = @_;
- my ($toc, $toc_trailer, $toc_size);
- my @toc_str;
- my @toc_data;
-
- local *ARCHIVE;
- open ARCHIVE, "<$file" or die "packdrake: cannot open archive file $file\n";
- $packer->{archive} = $file;
-
- #- seek to end of file minus 64, size of trailer.
- #- read toc_trailer, check header/trailer for version 0.
- seek ARCHIVE, -64, 2;
- read ARCHIVE, $toc_trailer, 64 or die "packdrake: cannot read toc_trailer of archive file $file\n";
- @$packer{qw(header toc_d_count toc_l_count toc_f_count toc_str_size uncompress trailer)} =
- unpack "a4NNNNZ40a4", $toc_trailer;
- $packer->{header} eq 'cz[0' && $packer->{trailer} eq '0]cz' or die "packdrake: bad toc_trailer in archive file $file\n";
-
- #- read toc, extract data hashes.
- $toc_size = $packer->{toc_str_size} + 16*$packer->{toc_f_count};
- seek ARCHIVE, -64-$toc_size, 2;
-
- #- read strings separated by \n, so this char cannot be inside filename, oops.
- read ARCHIVE, $toc, $packer->{toc_str_size} or die "packdrake: cannot read toc of archive file $file\n";
- @toc_str = split "\n", $toc;
-
- #- read data for file.
- read ARCHIVE, $toc, 16*$packer->{toc_f_count} or die "packdrake: cannot read toc of archive file $file\n";
- @toc_data = unpack "N" . 4*$packer->{toc_f_count}, $toc;
-
- close ARCHIVE;
-
- foreach (0..$packer->{toc_d_count}-1) {
- my $file = $toc_str[$_];
- push @{$packer->{files}}, $file;
- $packer->{data}{$file} = [ 'd' ];
- }
- foreach (0..$packer->{toc_l_count}-1) {
- my ($file, $symlink) = ($toc_str[$packer->{toc_d_count}+2*$_],
- $toc_str[$packer->{toc_d_count}+2*$_+1]);
- push @{$packer->{files}}, $file;
- $packer->{data}{$file} = [ 'l', $symlink ];
- }
- foreach (0..$packer->{toc_f_count}-1) {
- my $file = $toc_str[$packer->{toc_d_count}+2*$packer->{toc_l_count}+$_];
- push @{$packer->{files}}, $file;
- $packer->{data}{$file} = [ 'f', @toc_data[4*$_ .. 4*$_+3] ];
- }
-
- scalar keys %{$packer->{data}} == $packer->{toc_d_count}+$packer->{toc_l_count}+$packer->{toc_f_count} or
- die "packdrake: mismatch count when reading toc, bad archive file $file\n";
-}
-
-sub catsksz {
- my ($input, $seek, $siz, $output) = @_;
- my ($buf, $sz);
-
- while ($sz = sysread($input, $buf, $seek > 65536 ? 65536 : $seek)) {
- $seek -= $sz;
- last unless $seek > 0;
- }
- while ($sz = sysread($input, $buf, $siz > 65536 ? 65536 : $siz)) {
- $siz -= $sz;
- syswrite($output, $buf);
- last unless $siz > 0;
- }
-}
-
-sub cat_compress {
- my ($packer, $srcdir, @filenames) = @_;
- local *F;
- open F, "| $ENV{LD_LOADER} $packer->{compress} >$packer->{tmpz}"
- or die "packdrake: cannot start \"$packer->{compress}\"\n";
- foreach (@filenames) {
- my $srcfile = $srcdir ? "$srcdir/$_" : $_;
- my ($buf, $siz, $sz);
- local *FILE;
- open FILE, $srcfile or die "packdrake: cannot open $srcfile: $!\n";
- $siz = -s $srcfile;
- while ($sz = sysread(FILE, $buf, $siz > 65536 ? 65536 : $siz)) {
- $siz -= $sz;
- syswrite(F, $buf);
- last unless $siz > 0;
- }
- close FILE;
- }
- close F or die "packdrake: unable to compress data using \"$packer->{compress}\"\n";
- -s $packer->{tmpz};
-}
-
-#- compute the closure of filename list according to symlinks or directory
-#- contents inside the archive.
-sub compute_closure {
- my $packer = shift;
- my %file;
- my @file;
-
- #- keep in mind when a filename already exist and remove doublons.
- @file{@_} = ();
-
- #- navigate through filename list to follow symlinks.
- do {
- @file = grep { !$file{$_} } keys %file;
- foreach (@file) {
- my $file = $_;
-
- #- keep in mind this one has been processed and does not need
- #- to be examined again.
- $file{$file} = 1;
-
- exists $packer->{data}{$file} or next;
-
- for ($packer->{data}{$file}[0]) {
- #- on symlink, try to follow it and mark %file if
- #- it is still inside the archive contents.
- /l/ and do {
- my ($source, $target) = ($file, $packer->{data}{$file}[1]);
-
- $source =~ s|[^/]*$||; #- remove filename to navigate directory.
- if ($source) {
- while ($target =~ s|^\./|| || $target =~ s|//+|/| || $target =~ s|/$|| or
- $source and $target =~ s|^\.\./|| and $source =~ s|[^/]*/$||) {}
- }
-
- #- FALL THROUGH with new selection.
- $file = $target =~ m|^/| ? $target : $source.$target;
- };
-
- #- on directory, try all files on data starting with
- #- this directory, provided they are not already taken
- #- into account.
- /[ld]/ && do {
- @file{grep { !$file{$_} && m|^$file$| || m|^$file/| } keys %{$packer->{data}}} = ();
- last;
- };
- }
- }
- } while @file > 0;
-
- keys %file;
-}
-
-
-#- getting an packer object.
-sub new {
- my ($class, $file, %options) = @_;
- my $packer = bless {
- #- toc trailer data information.
- header => 'cz[0',
- toc_d_count => 0,
- toc_l_count => 0,
- toc_f_count => 0,
- toc_str_size => 0,
- uncompress => 'gzip -d',
- trailer => '0]cz',
-
- #- tempories used for making an archive.
- tmpz => ($ENV{TMPDIR} || "/tmp") . "/packdrake-tmp.$$",
- compress => 'gzip',
-
- #- internal data to handle compression or uncompression.
- archive => undef,
- files => [],
- data => {},
-
- log => $options{quiet} ? sub {} : sub { printf STDERR "%s\n", $_[0] },
- }, $class;
- $file and $packer->read_toc($file);
- $packer;
-}
-
-sub cat_archive {
- foreach (@_) {
- my $packer = new packdrake;
-
- #- update %data according to TOC_TRAILER of each archive.
- $packer->read_toc_trailer($_);
-
- #- dump all the file according to
- if (my $pid = fork()) {
- waitpid $pid, 0;
- } else {
- open STDIN, "<$_" or die "packdrake: unable to open archive $_\n";
- open STDERR, ">/dev/null" or die "packdrake: unable to open /dev/null\n";
-
- exec(($ENV{LD_LOADER} ? $ENV{LD_LOADER} : @{[]}), split " ", $packer->{uncompress});
-
- die "packdrake: unable to cat the archive with $packer->{uncompress}\n";
- }
- }
-}
-
-sub list_archive {
- foreach (@_) {
- my $packer = new packdrake($_);
- my $count = scalar keys %{$packer->{data}};
-
- $packer->{log}->("processing archive \"$_\"");
- print "$count files in archive, uncompression method is \"$packer->{uncompress}\"\n";
- foreach my $file (@{$packer->{files}}) {
- for ($packer->{data}{$file}[0]) {
- /l/ and do { printf "l %13c %s -> %s\n", ' ', $file, $packer->{data}{$file}[1]; last };
- /d/ and do { printf "d %13c %s\n", ' ', $file; last };
- /f/ && do { printf "f %12d %s\n", $packer->{data}{$file}[4], $file; last };
- }
- }
- }
-}
-
-sub extract_archive {
- my ($packer, $dir, @file) = @_;
- my %extract_table;
-
- #- compute closure.
- @file = $packer->compute_closure(@file);
-
- foreach my $file (@file) {
- #- check for presence of file, but do not abort, continue with others.
- unless ($packer->{data}{$file}) {
- $packer->{log}->("packdrake: unable to find file $file in archive $packer->{archive}");
- next;
- }
-
- my $newfile = "$dir/$file";
-
- $packer->{log}->("extracting $file");
- for ($packer->{data}{$file}[0]) {
- /l/ and do { symlink_ $packer->{data}{$file}[1], $newfile; last };
- /d/ and do { $dir and mkdir_ $newfile; last };
- /f/ and do { $dir and mkdir_ dirname $newfile;
- my $data = $packer->{data}{$file};
- $extract_table{$data->[1]} ||= [ $data->[2], [] ];
- push @{$extract_table{$data->[1]}[1]}, [ $newfile, $data->[3], $data->[4] ];
- $extract_table{$data->[1]}[0] == $data->[2] or die "packdrake: mismatched relocation in toc\n";
- last;
- };
- die "packdrake: unknown extension \"$_\" when uncompressing archive $packer->{archive}\n";
- }
- }
-
- #- delayed extraction is done on each block for a single execution
- #- of uncompress executable.
- foreach (sort { $a <=> $b } keys %extract_table) {
- local *OUTPUT;
- if (open OUTPUT, "-|") {
- #- $curr_off is used to handle the reading in a pipe and simulating
- #- a seek on it as done by catsksz, so last file position is
- #- last byte not read (ie last block read start + last block read size).
- local *FILE;
- my $curr_off = 0;
- foreach (sort { $a->[1] <=> $b->[1] } @{$extract_table{$_}[1]}) {
- my ($newfile, $off, $siz) = @$_;
- open FILE, $dir ? ">$newfile" : ">&STDOUT";
- catsksz(\*OUTPUT, $off - $curr_off, $siz, \*FILE);
- $curr_off = $off + $siz;
- close FILE;
- }
- } else {
- local *BUNZIP2;
- open BUNZIP2, "| $ENV{LD_LOADER} $packer->{uncompress}";
- local *ARCHIVE;
- open ARCHIVE, "<$packer->{archive}" or die "packdrake: cannot open archive $packer->{archive}\n";
- catsksz(\*ARCHIVE, $_, $extract_table{$_}[0], \*BUNZIP2);
- exec 'true'; #- exit ala _exit
- }
- }
-}
-
-sub build_archive {
- my ($f, $srcdir, $archivename, $maxsiz, $compress, $uncompress, $tmpz) = @_;
- my ($off1, $siz1, $off2, $siz2) = (0, 0, 0, 0);
- my @filelist;
- my $packer = new packdrake;
-
- $packer->{archive} = $archivename;
- $compress && $uncompress and ($packer->{compress}, $packer->{uncompress}) = ($compress, $uncompress);
- $tmpz and $packer->{tmpz} = $tmpz;
-
- $packer->{log}->("choosing compression method with \"$packer->{compress}\" for archive $packer->{archive}");
-
- unlink $packer->{archive};
- unlink $packer->{tmpz};
-
- my $file;
- while ($file = <$f>) {
- chomp $file;
- my $srcfile = $srcdir ? "$srcdir/$file" : $file;
- -e $srcfile or die "packdrake: unable to find file $srcfile\n";
-
- push @{$packer->{files}}, $file;
- #- now symbolic link and directory are supported, extension is
- #- available with the first field of $data{$file}.
- if (-l $file) {
- $packer->{data}{$file} = [ 'l', readlink $srcfile ];
- } elsif (-d $file) {
- $packer->{data}{$file} = [ 'd' ];
- } else {
- $siz2 = -s $srcfile;
-
- push @filelist, $file;
- $packer->{data}{$file} = [ 'f', -1, -1, $off2, $siz2 ];
-
- if ($off2 + $siz2 > $maxsiz) { #- need compression.
- $siz1 = cat_compress($packer, $srcdir, @filelist);
-
- foreach (@filelist) {
- $packer->{data}{$_} = [ 'f', $off1, $siz1, $packer->{data}{$_}[3], $packer->{data}{$_}[4] ];
- }
-
- system "$ENV{LD_LOADER} cat '$packer->{tmpz}' >>'$packer->{archive}'";
- $off1 += $siz1;
- $off2 = 0; $siz2 = 0;
- @filelist = ();
- }
- $off2 += $siz2;
- }
- }
- if (scalar @filelist) {
- $siz1 = cat_compress($packer, $srcdir, @filelist);
-
- foreach (@filelist) {
- $packer->{data}{$_} = [ 'f', $off1, $siz1, $packer->{data}{$_}[3], $packer->{data}{$_}[4] ];
- }
-
- system "$ENV{LD_LOADER} cat '$packer->{tmpz}' >>'$packer->{archive}'";
- $off1 += $siz1;
- }
- $packer->{log}->("real archive size of $packer->{archive} is $off1");
-
- #- produce a TOC directly at the end of the file, follow with
- #- a trailer with TOC summary and archive summary.
- local *OUTPUT;
- open OUTPUT, ">>$packer->{archive}";
-
- my ($toc_str, $toc_data) = ('', '');
- my @data_d;
- my @data_l;
- my @data_f;
-
- foreach my $file (@{$packer->{files}}) {
- $packer->{data}{$file} or die "packdrake: internal error on $file\n";
-
- #- specific according to type.
- #- with this version, only f has specific data other than strings.
- for ($packer->{data}{$file}[0]) {
- /d/ and do { push @data_d, $file; last };
- /l/ and do { push @data_l, $file; last };
- /f/ and do { push @data_f, $file; $toc_data .= pack("NNNN", @{$packer->{data}{$file}}[1..4]); last };
- die "packdrake: unknown extension $_\n";
- }
- }
-
- foreach (@data_d) { $toc_str .= $_ . "\n" }
- foreach (@data_l) { $toc_str .= $_ . "\n" . $packer->{data}{$_}[1] . "\n" }
- foreach (@data_f) { $toc_str .= $_ . "\n" }
-
- @$packer{qw(toc_d_count toc_l_count toc_f_count toc_str_size uncompress)} =
- (scalar(@data_d), scalar(@data_l), scalar(@data_f), length($toc_str), $uncompress);
-
- print OUTPUT $toc_str;
- print OUTPUT $toc_data;
- print OUTPUT build_toc_trailer($packer);
- close OUTPUT or die "packdrake: unable to build toc trailer of $packer->{archive}\n";
-
- unlink $packer->{tmpz};
-
- $packer;
-}
-
-1;