1 files changed, 213 insertions, 0 deletions
diff --git a/scripts/Dpkg/Source/Package/V3/Bzr.pm b/scripts/Dpkg/Source/Package/V3/Bzr.pm
new file mode 100644
index 0000000..2f18fee
--- /dev/null
+++ b/scripts/Dpkg/Source/Package/V3/Bzr.pm
@@ -0,0 +1,213 @@
+#
+# bzr support for dpkg-source
+#
+# Copyright © 2007 Colin Watson <cjwatson@debian.org>.
+# Based on Dpkg::Source::Package::V3_0::git, which is:
+# Copyright © 2007 Joey Hess <joeyh@debian.org>.
+# Copyright © 2008 Frank Lichtenheld <djpig@debian.org>
+#
+# 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 of the License, 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, see <https://www.gnu.org/licenses/>.
+
+package Dpkg::Source::Package::V3::Bzr;
+
+use strict;
+use warnings;
+
+our $VERSION = '0.01';
+
+use Cwd;
+use File::Basename;
+use File::Spec;
+use File::Find;
+use File::Temp qw(tempdir);
+
+use Dpkg::Gettext;
+use Dpkg::Compression;
+use Dpkg::ErrorHandling;
+use Dpkg::Source::Archive;
+use Dpkg::Exit qw(push_exit_handler pop_exit_handler);
+use Dpkg::Path qw(find_command);
+use Dpkg::Source::Functions qw(erasedir);
+
+use parent qw(Dpkg::Source::Package);
+
+our $CURRENT_MINOR_VERSION = '0';
+
+sub prerequisites {
+    return 1 if find_command('bzr');
+    error(g_('cannot unpack bzr-format source package because ' .
+             'bzr is not in the PATH'));
+}
+
+sub _check_workdir {
+    my $srcdir = shift;
+
+    if (! -d "$srcdir/.bzr") {
+        error(g_('source directory is not the top directory of a bzr repository (%s/.bzr not present), but Format bzr was specified'),
+              $srcdir);
+    }
+
+    # Symlinks from .bzr to outside could cause unpack failures, or
+    # point to files they shouldn't, so check for and don't allow.
+    if (-l "$srcdir/.bzr") {
+        error(g_('%s is a symlink'), "$srcdir/.bzr");
+    }
+    my $abs_srcdir = Cwd::abs_path($srcdir);
+    find(sub {
+        if (-l) {
+            if (Cwd::abs_path(readlink) !~ /^\Q$abs_srcdir\E(?:\/|$)/) {
+                error(g_('%s is a symlink to outside %s'),
+                      $File::Find::name, $srcdir);
+            }
+        }
+    }, "$srcdir/.bzr");
+
+    return 1;
+}
+
+sub can_build {
+    my ($self, $dir) = @_;
+
+    return (0, g_("doesn't contain a bzr repository")) unless -d "$dir/.bzr";
+    return 1;
+}
+
+sub do_build {
+    my ($self, $dir) = @_;
+    my @argv = @{$self->{options}{ARGV}};
+    # TODO: warn here?
+    #my @tar_ignore = map { "--exclude=$_" } @{$self->{options}{tar_ignore}};
+    my $diff_ignore_regex = $self->{options}{diff_ignore_regex};
+
+    $dir =~ s{/+$}{}; # Strip trailing /
+    my ($dirname, $updir) = fileparse($dir);
+
+    if (scalar(@argv)) {
+        usageerr(g_("-b takes only one parameter with format '%s'"),
+                 $self->{fields}{'Format'});
+    }
+
+    my $sourcepackage = $self->{fields}{'Source'};
+    my $basenamerev = $self->get_basename(1);
+    my $basename = $self->get_basename();
+    my $basedirname = $basename;
+    $basedirname =~ s/_/-/;
+
+    _check_workdir($dir);
+
+    my $old_cwd = getcwd();
+    chdir $dir or syserr(g_("unable to chdir to '%s'"), $dir);
+
+    local $_;
+
+    # Check for uncommitted files.
+    # To support dpkg-source -i, remove any ignored files from the
+    # output of bzr status.
+    open(my $bzr_status_fh, '-|', 'bzr', 'status')
+        or subprocerr('bzr status');
+    my @files;
+    while (<$bzr_status_fh>) {
+        chomp;
+        next unless s/^ +//;
+        if (! length $diff_ignore_regex ||
+            ! m/$diff_ignore_regex/o) {
+            push @files, $_;
+        }
+    }
+    close($bzr_status_fh) or syserr(g_('bzr status exited nonzero'));
+    if (@files) {
+        error(g_('uncommitted, not-ignored changes in working directory: %s'),
+              join(' ', @files));
+    }
+
+    chdir $old_cwd or syserr(g_("unable to chdir to '%s'"), $old_cwd);
+
+    my $tmp = tempdir("$dirname.bzr.XXXXXX", DIR => $updir);
+    push_exit_handler(sub { erasedir($tmp) });
+    my $tardir = "$tmp/$dirname";
+
+    system('bzr', 'branch', $dir, $tardir);
+    subprocerr("bzr branch $dir $tardir") if $?;
+
+    # Remove the working tree.
+    system('bzr', 'remove-tree', $tardir);
+    subprocerr("bzr remove-tree $tardir") if $?;
+
+    # Some branch metadata files are unhelpful.
+    unlink("$tardir/.bzr/branch/branch-name",
+           "$tardir/.bzr/branch/parent");
+
+    # Create the tar file
+    my $debianfile = "$basenamerev.bzr.tar." . $self->{options}{comp_ext};
+    info(g_('building %s in %s'),
+         $sourcepackage, $debianfile);
+    my $tar = Dpkg::Source::Archive->new(filename => $debianfile,
+                                         compression => $self->{options}{compression},
+                                         compression_level => $self->{options}{comp_level});
+    $tar->create(chdir => $tmp);
+    $tar->add_directory($dirname);
+    $tar->finish();
+
+    erasedir($tmp);
+    pop_exit_handler();
+
+    $self->add_file($debianfile);
+}
+
+# Called after a tarball is unpacked, to check out the working copy.
+sub do_extract {
+    my ($self, $newdirectory) = @_;
+    my $fields = $self->{fields};
+
+    my $basename = $self->get_basename();
+    my $basenamerev = $self->get_basename(1);
+
+    my @files = $self->get_files();
+    if (@files > 1) {
+        error(g_('format v3.0 (bzr) uses only one source file'));
+    }
+    my $tarfile = $files[0];
+    my $comp_ext_regex = compression_get_file_extension_regex();
+    if ($tarfile !~ /^\Q$basenamerev\E\.bzr\.tar\.$comp_ext_regex$/) {
+        error(g_('expected %s, got %s'),
+              "$basenamerev.bzr.tar.$comp_ext_regex", $tarfile);
+    }
+
+    if ($self->{options}{no_overwrite_dir} and -e $newdirectory) {
+        error(g_('unpack target exists: %s'), $newdirectory);
+    } else {
+        erasedir($newdirectory);
+    }
+
+    # Extract main tarball
+    info(g_('unpacking %s'), $tarfile);
+    my $tar = Dpkg::Source::Archive->new(
+        filename => File::Spec->catfile($self->{basedir}, $tarfile),
+    );
+    $tar->extract($newdirectory);
+
+    _check_workdir($newdirectory);
+
+    my $old_cwd = getcwd();
+    chdir($newdirectory)
+        or syserr(g_("unable to chdir to '%s'"), $newdirectory);
+
+    # Reconstitute the working tree.
+    system('bzr', 'checkout');
+    subprocerr('bzr checkout') if $?;
+
+    chdir $old_cwd or syserr(g_("unable to chdir to '%s'"), $old_cwd);
+}
+
+1;