mirror of
https://github.com/Project-OSS-Revival/alien.git
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93ad8ae367
Add support for control.tar, control.tar.xz, data.tar, data.tar.xz, data.tar.bz2 (deprecated) and data.tar.lzma (deprecated), so that the fallback code is in line with current dpkg-deb. The deprecated members are supported because there might be such binary packages laying around.
873 lines
19 KiB
Perl
873 lines
19 KiB
Perl
#!/usr/bin/perl -w
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=head1 NAME
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Alien::Package::Deb - an object that represents a deb package
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=cut
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package Alien::Package::Deb;
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use strict;
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use base qw(Alien::Package);
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use List::Util qw(first);
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=head1 DESCRIPTION
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This is an object class that represents a deb package. It is derived from
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Alien::Package.
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=head1 FIELDS
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=over 4
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=item have_dpkg_deb
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Set to a true value if dpkg-deb is available.
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=item deb_member_list
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Set to the list of member names in the deb package.
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=item dirtrans
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After the build stage, set to a hash reference of the directories we moved
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files from and to, so these moves can be reverted in the cleantree stage.
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=item fixperms
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If this is set to true, the generated debian/rules will run dh_fixperms.
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=back
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=head1 METHODS
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=over 4
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=item init
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Sets have_dpkg_deb if dpkg-deb is in the path. I prefer to use dpkg-deb,
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if it is available since it is a lot more future-proof.
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=cut
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sub _inpath {
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my $this=shift;
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my $program=shift;
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foreach (split(/:/,$ENV{PATH})) {
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if (-x "$_/$program") {
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return 1;
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}
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}
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return '';
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}
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sub init {
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my $this=shift;
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$this->SUPER::init(@_);
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$this->have_dpkg_deb($this->_inpath('dpkg-deb'));
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}
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=item checkfile
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Detect deb files by their extention.
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=cut
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sub checkfile {
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my $this=shift;
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my $file=shift;
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return $file =~ m/.*\.u?deb$/;
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}
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=item install
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Install a deb with dpkg. Pass in the filename of the deb to install.
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=cut
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sub install {
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my $this=shift;
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my $deb=shift;
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my $v=$Alien::Package::verbose;
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$Alien::Package::verbose=2;
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$this->do("dpkg", "--no-force-overwrite", "-i", $deb)
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or die "Unable to install";
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$Alien::Package::verbose=$v;
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}
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=item test
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Test a deb with lintian. Pass in the filename of the deb to test.
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=cut
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sub test {
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my $this=shift;
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my $deb=shift;
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if ($this->_inpath("lintian")) {
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# Ignore some lintian warnings that don't matter for
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# aliened packages.
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return map { s/\n//; $_ }
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grep {
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! /unknown-section alien/
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} $this->runpipe(1, "lintian '$deb'");
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}
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else {
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return "lintian not available, so not testing";
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}
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}
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=item get_deb_member_list
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Helper method. Pass it the name of the deb and it will return the list of
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ar members.
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=cut
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sub get_deb_member_list {
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my $this=shift;
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my $file=$this->filename;
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my $members=$this->deb_member_list;
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unless (defined $members) {
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$members = [ map { chomp; $_ } $this->runpipe(1, "ar -t '$file'") ];
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$this->deb_member_list($members);
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}
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return @{$members};
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}
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=item getcontrolfile
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Helper method. Pass it the name of a control file, and it will pull it out
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of the deb and return it.
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=cut
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sub getcontrolfile {
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my $this=shift;
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my $controlfile=shift;
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my $file=$this->filename;
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if ($this->have_dpkg_deb) {
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return $this->runpipe(1, "dpkg-deb --info '$file' $controlfile 2>/dev/null");
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}
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else {
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# Solaris tar doesn't support O
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sub tar_out {
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my $file = shift;
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return "(mkdir /tmp/tar_out.$$ &&".
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" cd /tmp/tar_out.$$ &&".
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" tar xf - './$file' &&".
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" cat '$file'; cd /; rm -rf /tmp/tar_out.$$)";
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}
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my $controlcomp;
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my $controlmember = first { /^control\.tar/ }
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$this->get_deb_member_list;
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if (! defined $controlmember) {
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die 'Cannot find control member!';
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} elsif ($controlmember eq 'control.tar.gz') {
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$controlcomp = 'gzip -dc';
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} elsif ($controlmember eq 'control.tar.xz') {
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$controlcomp = 'xz -dc';
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} elsif ($controlmember eq 'control.tar') {
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$controlcomp = 'cat';
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} else {
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die 'Unknown control member!';
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}
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my $getcontrol = "ar -p '$file' $controlmember | $controlcomp | ".tar_out($controlfile)." 2>/dev/null";
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return $this->runpipe(1, $getcontrol);
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}
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}
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=item get_datamember_cmd
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Helper method. Pass it the name of the deb and it will return the raw
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command needed to extract the data.tar member.
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=cut
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sub get_datamember_cmd {
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my $this=shift;
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my $file=$this->filename;
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my $datacomp;
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my $datamember = first { /^data\.tar/ }
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$this->get_deb_member_list;
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if (! defined $datamember) {
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die 'Cannot find data member!';
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} elsif ($datamember eq 'data.tar.gz') {
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$datacomp = 'gzip -dc';
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} elsif ($datamember eq 'data.tar.bz2') {
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$datacomp = 'bzip2 -dc';
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} elsif ($datamember eq 'data.tar.xz') {
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$datacomp = 'xz -dc';
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} elsif ($datamember eq 'data.tar.lzma') {
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$datacomp = 'xz -dc';
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} elsif ($datamember eq 'data.tar') {
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$datacomp = 'cat';
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} else {
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die 'Unknown data member!';
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}
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return "ar -p '$file' $datamember | $datacomp";
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}
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=item scan
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Implement the scan method to read a deb file.
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=cut
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sub scan {
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my $this=shift;
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$this->SUPER::scan(@_);
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my $file=$this->filename;
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my @control=$this->getcontrolfile('control');
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die "Control file couldn't be read!"
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if @control == 0;
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# Parse control file and extract fields. Use a translation table
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# to map between the debian names and the internal field names,
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# which more closely resemble those used by rpm (for historical
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# reasons; TODO: change to deb style names).
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my $description='';
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my $field;
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my %fieldtrans=(
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Package => 'name',
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Version => 'version',
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Architecture => 'arch',
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Maintainer => 'maintainer',
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Section => 'group',
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Description => 'summary',
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);
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for (my $i=0; $i <= $#control; $i++) {
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$_ = $control[$i];
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chomp;
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if (/^(\w.*?):\s+(.*)/) {
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# Really old debs might have oddly capitalized
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# field names.
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$field=ucfirst(lc($1));
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if (exists $fieldtrans{$field}) {
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$field=$fieldtrans{$field};
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$this->$field($2);
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}
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}
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elsif (/^ / && $field eq 'summary') {
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# Handle extended description.
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s/^ //g;
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$_="" if $_ eq ".";
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$description.="$_\n";
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}
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}
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$this->description($description);
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$this->copyright("see /usr/share/doc/".$this->name."/copyright");
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$this->group("unknown") if ! $this->group;
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$this->distribution("Debian");
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$this->origformat("deb");
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$this->binary_info(scalar $this->getcontrolfile('control'));
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# Read in the list of conffiles, if any.
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my @conffiles;
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@conffiles=map { chomp; $_ } $this->getcontrolfile('conffiles');
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$this->conffiles(\@conffiles);
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# Read in the list of all files.
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# Note that tar doesn't supply a leading '/', so we have to add that.
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my $datamember_cmd;
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if ($this->have_dpkg_deb) {
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$datamember_cmd = "dpkg-deb --fsys-tarfile '$file'";
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}
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else {
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$datamember_cmd = $this->get_datamember_cmd($file);
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}
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my @filelist=map { chomp; s:\./::; "/$_" }
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$this->runpipe(0, "$datamember_cmd | tar tf -");
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$this->filelist(\@filelist);
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# Read in the scripts, if any.
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foreach my $field (qw{postinst postrm preinst prerm}) {
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$this->$field(scalar $this->getcontrolfile($field));
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}
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return 1;
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}
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=item unpack
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Implement the unpack method to unpack a deb file.
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=cut
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sub unpack {
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my $this=shift;
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$this->SUPER::unpack(@_);
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my $file=$this->filename;
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if ($this->have_dpkg_deb) {
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$this->do("dpkg-deb", "-x", $file, $this->unpacked_tree)
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or die "Unpacking of '$file' failed: $!";
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}
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else {
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my $datamember_cmd = $this->get_datamember_cmd($file);
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$this->do("$datamember_cmd | (cd ".$this->unpacked_tree."; tar xpf -)")
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or die "Unpacking of '$file' failed: $!";
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}
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return 1;
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}
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=item getpatch
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This method tries to find a patch file to use in the prep stage. If it
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finds one, it returns it. Pass in a list of directories to search for
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patches in.
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=cut
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sub getpatch {
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my $this=shift;
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my $anypatch=shift;
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my @patches;
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foreach my $dir (@_) {
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push @patches, glob("$dir/".$this->name."_".$this->version."-".$this->release."*.diff.gz");
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}
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if (! @patches) {
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# Try not matching the release, see if that helps.
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foreach my $dir (@_) {
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push @patches,glob("$dir/".$this->name."_".$this->version."*.diff.gz");
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}
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if (@patches && $anypatch) {
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# Fallback to anything that matches the name.
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foreach my $dir (@_) {
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push @patches,glob("$dir/".$this->name."_*.diff.gz");
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}
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}
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}
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# If we ended up with multiple matches, return the first.
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return $patches[0];
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}
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=item prep
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Adds a populated debian directory the unpacked package tree, making it
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ready for building. This can either be done automatically, or via a patch
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file.
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=cut
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sub prep {
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my $this=shift;
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my $dir=$this->unpacked_tree || die "The package must be unpacked first!";
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$this->do("mkdir $dir/debian") ||
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die "mkdir $dir/debian failed: $!";
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# Use a patch file to debianize?
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if (defined $this->patchfile) {
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# The -f passed to zcat makes it pass uncompressed files
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# through without error.
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$this->do("zcat -f ".$this->patchfile." | (cd $dir; patch -p1)")
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or die "patch error: $!";
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# Look for .rej files.
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die "patch failed with .rej files; giving up"
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if $this->runpipe(1, "find '$dir' -name \"*.rej\"");
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$this->do('find', '.', '-name', '*.orig', '-exec', 'rm', '{}', ';');
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$this->do("chmod", 755, "$dir/debian/rules");
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# It's possible that the patch file changes the debian
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# release or version. Parse changelog to detect that.
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open (my $changelog, "<$dir/debian/changelog") || return;
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my $line=<$changelog>;
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if ($line=~/^[^ ]+\s+\(([^)]+)\)\s/) {
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my $version=$1;
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$version=~s/\s+//; # ensure no whitespace
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if ($version=~/(.*)-(.*)/) {
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$version=$1;
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$this->release($2);
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}
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$this->version($1);
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}
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close $changelog;
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return;
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}
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# Automatic debianization.
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# Changelog file.
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open (OUT, ">$dir/debian/changelog") || die "$dir/debian/changelog: $!";
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print OUT $this->name." (".$this->version."-".$this->release.") experimental; urgency=low\n";
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print OUT "\n";
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print OUT " * Converted from .".$this->origformat." format to .deb by alien version $Alien::Version\n";
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print OUT " \n";
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if (defined $this->changelogtext) {
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my $ct=$this->changelogtext;
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$ct=~s/^/ /gm;
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print OUT $ct."\n";
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}
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print OUT "\n";
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print OUT " -- ".$this->username." <".$this->email."> ".$this->date."\n";
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close OUT;
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# Control file.
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open (OUT, ">$dir/debian/control") || die "$dir/debian/control: $!";
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print OUT "Source: ".$this->name."\n";
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print OUT "Section: alien\n";
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print OUT "Priority: extra\n";
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print OUT "Maintainer: ".$this->username." <".$this->email.">\n";
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print OUT "\n";
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print OUT "Package: ".$this->name."\n";
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print OUT "Architecture: ".$this->arch."\n";
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if (defined $this->depends) {
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print OUT "Depends: ".join(", ", "\${shlibs:Depends}", $this->depends)."\n";
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}
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else {
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print OUT "Depends: \${shlibs:Depends}\n";
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}
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print OUT "Description: ".$this->summary."\n";
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print OUT $this->description."\n";
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close OUT;
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# Copyright file.
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open (OUT, ">$dir/debian/copyright") || die "$dir/debian/copyright: $!";
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print OUT "This package was debianized by the alien program by converting\n";
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print OUT "a binary .".$this->origformat." package on ".$this->date."\n";
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print OUT "\n";
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print OUT "Copyright: ".$this->copyright."\n";
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print OUT "\n";
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print OUT "Information from the binary package:\n";
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print OUT $this->binary_info."\n";
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close OUT;
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# Conffiles, if any. Note that debhelper takes care of files in /etc.
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my @conffiles=grep { $_ !~ /^\/etc/ } @{$this->conffiles};
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if (@conffiles) {
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open (OUT, ">$dir/debian/conffiles") || die "$dir/debian/conffiles: $!";
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print OUT join("\n", @conffiles)."\n";
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close OUT;
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}
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# Use debhelper v7
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open (OUT, ">$dir/debian/compat") || die "$dir/debian/compat: $!";
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print OUT "7\n";
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close OUT;
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# A minimal rules file.
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open (OUT, ">$dir/debian/rules") || die "$dir/debian/rules: $!";
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my $fixpermscomment = $this->fixperms ? "" : "#";
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print OUT << "EOF";
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#!/usr/bin/make -f
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# debian/rules for alien
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PACKAGE=\$(shell dh_listpackages)
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build:
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dh_testdir
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clean:
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dh_testdir
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dh_testroot
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dh_clean -d
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binary-indep: build
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binary-arch: build
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dh_testdir
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dh_testroot
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dh_prep
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dh_installdirs
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dh_installdocs
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dh_installchangelogs
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# Copy the packages's files.
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find . -maxdepth 1 -mindepth 1 -not -name debian -print0 | \\
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xargs -0 -r -i cp -a {} debian/\$(PACKAGE)
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#
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# If you need to move files around in debian/\$(PACKAGE) or do some
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# binary patching, do it here
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#
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# This has been known to break on some wacky binaries.
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# dh_strip
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dh_compress
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$fixpermscomment dh_fixperms
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dh_makeshlibs
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dh_installdeb
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-dh_shlibdeps
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dh_gencontrol
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dh_md5sums
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dh_builddeb
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binary: binary-indep binary-arch
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.PHONY: build clean binary-indep binary-arch binary
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EOF
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close OUT;
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$this->do("chmod", 755, "$dir/debian/rules");
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if ($this->usescripts) {
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foreach my $script (qw{postinst postrm preinst prerm}) {
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$this->savescript($script, $this->$script());
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}
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}
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else {
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# There may be a postinst with permissions fixups even when
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# scripts are disabled.
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$this->savescript("postinst", undef);
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}
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my %dirtrans=( # Note: no trailing slashes on these directory names!
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# Move files to FHS-compliant locations, if possible.
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'/usr/man' => '/usr/share/man',
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'/usr/info' => '/usr/share/info',
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'/usr/doc' => '/usr/share/doc',
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);
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foreach my $olddir (keys %dirtrans) {
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if (-d "$dir/$olddir" && ! -e "$dir/$dirtrans{$olddir}") {
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# Ignore failure..
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my ($dirbase)=$dirtrans{$olddir}=~/(.*)\//;
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$this->do("install", "-d", "$dir/$dirbase");
|
|
$this->do("mv", "$dir/$olddir", "$dir/$dirtrans{$olddir}");
|
|
if (-d "$dir/$olddir") {
|
|
$this->do("rmdir", "-p", "$dir/$olddir");
|
|
}
|
|
}
|
|
else {
|
|
delete $dirtrans{$olddir};
|
|
}
|
|
}
|
|
$this->dirtrans(\%dirtrans); # store for cleantree
|
|
}
|
|
|
|
=item build
|
|
|
|
Build a deb.
|
|
|
|
=cut
|
|
|
|
sub build {
|
|
my $this=shift;
|
|
|
|
# Detect architecture mismatch and abort with a comprehensible
|
|
# error message.
|
|
my $arch=$this->arch;
|
|
if ($arch ne 'all') {
|
|
my $ret=system("dpkg-architecture", "-i".$arch);
|
|
if ($ret != 0) {
|
|
die $this->filename." is for architecture ".$this->arch." ; the package cannot be built on this system"."\n";
|
|
}
|
|
}
|
|
|
|
chdir $this->unpacked_tree;
|
|
my $log=$this->runpipe(1, "debian/rules binary 2>&1");
|
|
chdir "..";
|
|
my $err=$?;
|
|
if ($err) {
|
|
if (! defined $log) {
|
|
die "Package build failed; could not run generated debian/rules file.\n";
|
|
}
|
|
die "Package build failed. Here's the log:\n", $log;
|
|
}
|
|
|
|
return $this->name."_".$this->version."-".$this->release."_".$this->arch.".deb";
|
|
}
|
|
|
|
=item cleantree
|
|
|
|
Delete the entire debian/ directory.
|
|
|
|
=cut
|
|
|
|
sub cleantree {
|
|
my $this=shift;
|
|
my $dir=$this->unpacked_tree || die "The package must be unpacked first!";
|
|
|
|
my %dirtrans=%{$this->dirtrans};
|
|
foreach my $olddir (keys %dirtrans) {
|
|
if (! -e "$dir/$olddir" && -d "$dir/$dirtrans{$olddir}") {
|
|
# Ignore failure.. (should I?)
|
|
my ($dirbase)=$dir=~/(.*)\//;
|
|
$this->do("install", "-d", "$dir/$dirbase");
|
|
$this->do("mv", "$dir/$dirtrans{$olddir}", "$dir/$olddir");
|
|
if (-d "$dir/$dirtrans{$olddir}") {
|
|
$this->do("rmdir", "-p", "$dir/$dirtrans{$olddir}");
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->do("rm", "-rf", "$dir/debian");
|
|
}
|
|
|
|
=item package
|
|
|
|
Set/get package name.
|
|
|
|
Always returns the packge name in lowercase with all invalid characters
|
|
rmoved. The name is however, stored unchanged.
|
|
|
|
=cut
|
|
|
|
sub name {
|
|
my $this=shift;
|
|
|
|
# set
|
|
$this->{name} = shift if @_;
|
|
return unless defined wantarray; # optimization
|
|
|
|
# get
|
|
$_=lc($this->{name});
|
|
tr/_/-/;
|
|
s/[^a-z0-9-\.\+]//g;
|
|
return $_;
|
|
}
|
|
|
|
=item version
|
|
|
|
Set/get package version.
|
|
|
|
When the version is set, it will be stripped of any epoch. If there is a
|
|
release, the release will be stripped away and used to set the release
|
|
field as a side effect. Otherwise, the release will be set to 1.
|
|
|
|
More sanitization of the version is done when the field is retrieved, to
|
|
make sure it is a valid debian version field.
|
|
|
|
=cut
|
|
|
|
sub version {
|
|
my $this=shift;
|
|
|
|
# set
|
|
if (@_) {
|
|
my $version=shift;
|
|
if ($version =~ /(.+)-(.+)/) {
|
|
$version=$1;
|
|
$this->release($2);
|
|
}
|
|
else {
|
|
$this->release(1);
|
|
}
|
|
# Kill epochs.
|
|
$version=~s/^\d+://;
|
|
|
|
$this->{version}=$version;
|
|
}
|
|
|
|
# get
|
|
return unless defined wantarray; # optimization
|
|
$_=$this->{version};
|
|
# Make sure the version contains a digit at the start, as required
|
|
# by dpkg-deb.
|
|
unless (/^[0-9]/) {
|
|
$_="0".$_;
|
|
}
|
|
# filter out some characters not allowed in debian versions
|
|
s/[^-.+~:A-Za-z0-9]//g; # see lib/dpkg/parsehelp.c parseversion
|
|
return $_;
|
|
}
|
|
|
|
=item release
|
|
|
|
Set/get package release.
|
|
|
|
Always returns a sanitized release version. The release is however, stored
|
|
unchanged.
|
|
|
|
=cut
|
|
|
|
sub release {
|
|
my $this=shift;
|
|
|
|
# set
|
|
$this->{release} = shift if @_;
|
|
|
|
# get
|
|
return unless defined wantarray; # optimization
|
|
$_=$this->{release};
|
|
# Make sure the release contains digets.
|
|
return $_."-1" unless /[0-9]/;
|
|
return $_;
|
|
}
|
|
|
|
=item description
|
|
|
|
Set/get description
|
|
|
|
Although the description is stored internally unchanged, this will always
|
|
return a sanitized form of it that is compliant with Debian standards.
|
|
|
|
=cut
|
|
|
|
sub description {
|
|
my $this=shift;
|
|
|
|
# set
|
|
$this->{description} = shift if @_;
|
|
|
|
# get
|
|
return unless defined wantarray; # optimization
|
|
my $ret='';
|
|
foreach (split /\n/,$this->{description}) {
|
|
s/\t/ /g; # change tabs to spaces
|
|
s/\s+$//g; # remove trailing whitespace
|
|
$_="." if $_ eq ''; # empty lines become dots
|
|
$ret.=" $_\n";
|
|
}
|
|
$ret=~s/^\n+//g; # kill leading blank lines
|
|
$ret.=" .\n" if length $ret;
|
|
$ret.=" (Converted from a ".$this->origformat." package by alien version $Alien::Version.)";
|
|
return $ret;
|
|
}
|
|
|
|
=item date
|
|
|
|
Returns the date, in rfc822 format.
|
|
|
|
=cut
|
|
|
|
sub date {
|
|
my $this=shift;
|
|
|
|
my $date=$this->runpipe(1, "date -R");
|
|
chomp $date;
|
|
if (!$date) {
|
|
die "date -R did not return a valid result.";
|
|
}
|
|
|
|
return $date;
|
|
}
|
|
|
|
=item email
|
|
|
|
Returns an email address for the current user.
|
|
|
|
=cut
|
|
|
|
sub email {
|
|
my $this=shift;
|
|
|
|
return $ENV{EMAIL} if exists $ENV{EMAIL};
|
|
|
|
my $login = getlogin || (getpwuid($<))[0] || $ENV{USER};
|
|
my $mailname='';
|
|
if (open (MAILNAME,"</etc/mailname")) {
|
|
$mailname=<MAILNAME>;
|
|
if (defined $mailname) {
|
|
chomp $mailname;
|
|
}
|
|
close MAILNAME;
|
|
}
|
|
if (!$mailname) {
|
|
$mailname=$this->runpipe(1, "hostname");
|
|
chomp $mailname;
|
|
}
|
|
return "$login\@$mailname";
|
|
}
|
|
|
|
=item username
|
|
|
|
Returns the user name of the real uid.
|
|
|
|
=cut
|
|
|
|
sub username {
|
|
my $this=shift;
|
|
|
|
my $username;
|
|
my $login = getlogin || (getpwuid($<))[0] || $ENV{USER};
|
|
(undef, undef, undef, undef, undef, undef, $username) = getpwnam($login);
|
|
|
|
# Remove GECOS fields from username.
|
|
$username=~s/,.*//g;
|
|
|
|
# The ultimate fallback.
|
|
if ($username eq '') {
|
|
$username=$login;
|
|
}
|
|
|
|
return $username;
|
|
}
|
|
|
|
=item savescript
|
|
|
|
Saves script to debian directory.
|
|
|
|
=cut
|
|
|
|
sub savescript {
|
|
my $this=shift;
|
|
my $script=shift;
|
|
my $data=shift;
|
|
|
|
if ($script eq 'postinst') {
|
|
$data=$this->gen_postinst($data);
|
|
}
|
|
|
|
my $dir=$this->unpacked_tree;
|
|
|
|
return unless defined $data;
|
|
next if $data =~ m/^\s*$/;
|
|
open (OUT,">$dir/debian/$script") ||
|
|
die "$dir/debian/$script: $!";
|
|
print OUT $data;
|
|
close OUT;
|
|
}
|
|
|
|
=item gen_postinst
|
|
|
|
Modifies or creates a postinst. This may include generated shell code to set
|
|
owners and groups from the owninfo field, and update modes from the modeinfo
|
|
field.
|
|
|
|
=cut
|
|
|
|
sub gen_postinst {
|
|
my $this=shift;
|
|
my $postinst=shift;
|
|
|
|
my $owninfo = $this->owninfo;
|
|
my $modeinfo = $this->modeinfo;
|
|
return $postinst unless ref $owninfo && %$owninfo;
|
|
|
|
# If there is no postinst, let's make one up..
|
|
$postinst="#!/bin/sh\n" unless defined $postinst && length $postinst;
|
|
|
|
my ($firstline, $rest)=split(/\n/, $postinst, 2);
|
|
if ($firstline !~ m/^#!\s*\/bin\/(ba)?sh/) {
|
|
print STDERR "warning: unable to add ownership fixup code to postinst as the postinst is not a shell script!\n";
|
|
return $postinst;
|
|
}
|
|
|
|
my $permscript="# alien added permissions fixup code\n";
|
|
foreach my $file (sort keys %$owninfo) {
|
|
my $quotedfile=$file;
|
|
$quotedfile=~s/'/'"'"'/g; # no single quotes in single quotes..
|
|
$permscript.="chown '".$owninfo->{$file}."' '$quotedfile'\n";
|
|
$permscript.="chmod '".$modeinfo->{$file}."' '$quotedfile'\n"
|
|
if (defined $modeinfo->{$file});
|
|
}
|
|
return "$firstline\n$permscript\n$rest";
|
|
}
|
|
|
|
=back
|
|
|
|
=head1 AUTHOR
|
|
|
|
Joey Hess <joey@kitenet.net>
|
|
|
|
=cut
|
|
|
|
1
|