135 lines
3.6 KiB
Perl
Executable File
135 lines
3.6 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# which_deb
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#
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# Simple helper tool to find the appropriate version of a package in
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# the archive to meet a requirement in the debian-cd build
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use strict;
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use List::Util qw{first};
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# Give prefernce to i386 and amd64, if specified, or if building a
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# source-only CD.
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my @ARCHES;
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if ( $ENV{ARCHES} ) {
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push @ARCHES, 'i386' if $ENV{ARCHES} =~ /i386/;
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push @ARCHES, 'amd64' if $ENV{ARCHES} =~ /amd64/;
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push @ARCHES, grep { !/source|i386|amd64/ } split /\s+/, $ENV{ARCHES};
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}
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@ARCHES = qw{i386 amd64} unless @ARCHES;
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my ($mirror, $codename, $pkg, $pth, $output);
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$mirror = shift;
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$codename = shift;
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$pkg = shift;
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$output = shift;
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$pth = "$mirror/dists/$codename";
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my @components = qw(main);
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push @components, 'contrib' if $ENV{CONTRIB};
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push @components, 'non-free' if $ENV{NONFREE};
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push @components, 'local' if $ENV{LOCAL};
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if (!defined ($output)) {
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$output = "binary";
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}
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sub grab_bin_info {
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my $pth = shift;
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my $arch = shift;
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my $pkgname = shift;
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my $old_split = $/;
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my $match;
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my $result = "";
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$/ = ''; # Browse by paragraph
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for my $component ( @components ) {
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my $pgz = "$pth/$component/binary-$arch/Packages.gz";
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if ( $component eq 'local' and $ENV{LOCALDEBS} ) {
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$pgz = "$ENV{LOCALDEBS}/dists/$codename/local/binary-$arch/Packages.gz";
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}
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if (-e $pgz) {
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open(PFILE, "zcat $pgz |") or
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die "Failed to read Packages file $pgz";
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while (defined($match = <PFILE>)) {
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if (($match =~ /^Package: \Q$pkgname\E$/m)) {
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$result = $match;
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close PFILE;
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return $result;
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}
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}
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# Fell through
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close PFILE;
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}
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}
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return "";
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}
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sub grab_src_info {
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my $pth = shift;
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my $pkgname = shift;
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my $old_split = $/;
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my $match;
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my $result = "";
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$/ = ''; # Browse by paragraph
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for my $component ( @components ) {
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my $pgz = "$pth/$component/source/Sources.gz";
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if (-e $pgz) {
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open(PFILE, "zcat $pgz |") or
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die "Failed to read Sources file $pgz";
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while (defined($match = <PFILE>)) {
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if (($match =~ /^Package: \Q$pkgname\E$/m)) {
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$result = $match;
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close PFILE;
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return $result;
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}
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}
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# Fell through
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close PFILE;
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}
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}
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return "";
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}
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my $bin_deb = "";
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my $pkgdata = "";
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my $srcname = "";
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if ($pkg eq "silo") {
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$pkgdata = grab_bin_info($pth, "sparc", $pkg);
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} elsif ($pkg eq "syslinux") {
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first { $pkgdata = grab_bin_info($pth, $_, "syslinux-common") } @ARCHES;
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if (length($pkgdata) < 3) {
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first { $pkgdata = grab_bin_info($pth, $_, "syslinux") } @ARCHES;
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}
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} elsif ($pkg eq "yaboot") {
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$pkgdata = grab_bin_info($pth, "powerpc", $pkg);
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} else { # Fallthrough for all other packages
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first { $pkgdata = grab_bin_info($pth, $_, $pkg) } @ARCHES;
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}
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if (length($pkgdata) > 2) {
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if ($output eq "binary") {
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$pkgdata =~ m/^Filename: (\S+)/m and $bin_deb = $1;
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print "$bin_deb\n";
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}
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elsif ($output eq "source") {
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$srcname = $pkg;
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$pkgdata =~ m/^Source: (\S+)/m and $srcname = $1;
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$pkgdata = grab_src_info($pth, $srcname);
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if (length($pkgdata) > 2) {
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my $dir;
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$pkgdata =~ m/^Directory: (\S+)/m and $dir = $1;
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# Explicitly use the md5 lines in the Sources stanza, hence the xdigit(32) here
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while ($pkgdata =~ m/^ ([[:xdigit:]]{32}) (\d+) (\S+)/msg) { print "$dir/$3\n"; }
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}
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}
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}
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