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Re: sourcev3 branch - quilt based source package



In article <[🔎] 20080315142433.GA6789@ouaza.com>, Raphael Hertzog wrote:
>I pushed the last (functional) changes that I wanted to have in the
>sourcev3 branch: a module handling a format named "3.0 (quilt)" which
>is wig&pen based. I made the choice to directly use quilt if available
>so that after extraction, one can continue to use quilt without finding a
>way to recreate the ".pc" directory. Also the source generation is smart
>enough to ignore this directory.

With regard to the sourcev3 branch, could you please also apply the
appended patch for 3.0 (bzr) support? See
http://lists.debian.org/debian-dpkg/2007/10/msg00026.html for the
initial implementation of this; I've brought it up to date with the
changes to the git implementation.

(The thread was very long with many digressions, but I don't think there
were substantive objections to including 3.0 (bzr) support there. The
only major concern I remember being raised was that of an equivalent to
git's shallow clones, which I'm pretty sure is on bzr's roadmap; in any
case this only really makes much of a difference for large and old
packages, and there are enough cases of tolerably-sized bzr branches
that it seems worthwhile despite that.)

>- copy upstream tarballs in the extraction directory for
>  all formats (and take it the relevant part out of the Format: 1.0 code).

Am I confused? I admit that I haven't really looked at 3.0 (quilt), but
I thought that at least 3.0 (git) wasn't going to have a separate
upstream tarball.

>http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=4588
>Support addition of binary files. Now that the debian directory
>is stored in a separate tarball, it's possible to add binary files
>in the debian directory but it's not possible to add them directly in some
>upstream directory, they have to be moved in place at build time if
>needed. Is that enough to consider this bug solved?

Still inconvenient, just not quite so inconvenient as before ...

Thanks,

-- 
Colin Watson                                       [cjwatson@debian.org]

diff --git a/scripts/Dpkg/Source/Package/V3_0/bzr.pm b/scripts/Dpkg/Source/Package/V3_0/bzr.pm
new file mode 100644
index 0000000..a0e1974
--- /dev/null
+++ b/scripts/Dpkg/Source/Package/V3_0/bzr.pm
@@ -0,0 +1,206 @@
+#!/usr/bin/perl
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+package Dpkg::Source::Package::V3_0::bzr;
+
+use strict;
+use warnings;
+
+use base 'Dpkg::Source::Package';
+
+use Cwd;
+use File::Basename;
+use File::Find;
+use File::Temp qw(tempdir);
+
+use Dpkg;
+use Dpkg::Gettext;
+use Dpkg::Compression;
+use Dpkg::ErrorHandling qw(error subprocerr syserr info);
+use Dpkg::Version qw(check_version);
+use Dpkg::Source::Archive;
+use Dpkg::Exit;
+use Dpkg::Source::Functions qw(erasedir);
+
+sub import {
+	foreach my $dir (split(/:/, $ENV{PATH})) {
+		if (-x "$dir/bzr") {
+			return 1;
+		}
+	}
+	error(_g("This source package can only be manipulated using bzr, which is not in the PATH."));
+}
+
+sub sanity_check {
+	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, $dir) = @_;
+	return (-d "$dir/.bzr", _g("doesn't contain a bzr repository"));
+}
+
+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_regexp = $self->{'options'}{'diff_ignore_regexp'};
+
+	$dir =~ s{/+$}{}; # Strip trailing /
+	my ($dirname, $updir) = fileparse($dir);
+
+	if (scalar(@argv)) {
+		usageerr(_g("-b takes only one parameter with v3.0 source packages"));
+	}
+
+	my $sourcepackage = $self->{'fields'}{'Source'};
+	my $basenamerev = $self->get_basename(1);
+	my $basename = $self->get_basename();
+	my $basedirname = $basename;
+	$basedirname =~ s/_/-/;
+
+	sanity_check($dir);
+
+	my $old_cwd=getcwd();
+	chdir($dir) ||
+		syserr(_g("unable to chdir to `%s'"), $dir);
+
+	# Check for uncommitted files.
+	# To support dpkg-source -i, remove any ignored files from the
+	# output of bzr status.
+	open(BZR_STATUS, '-|', "bzr", "status") ||
+		subprocerr("bzr status");
+	my @files;
+	while (<BZR_STATUS>) {
+		chomp;
+		next unless s/^ +//;
+		if (! length $diff_ignore_regexp ||
+		    ! m/$diff_ignore_regexp/o) {
+			push @files, $_;
+		}
+	}
+	close(BZR_STATUS) || syserr(_g("bzr status exited nonzero"));
+	if (@files) {
+		error(sprintf(_g("uncommitted, not-ignored changes in working directory: %s"),
+		            join(" ", @files)));
+	}
+
+	chdir($old_cwd) ||
+		syserr(_g("unable to chdir to `%s'"), $old_cwd);
+
+	my $tmp = tempdir("$dirname.bzr.XXXXXX", DIR => $updir);
+	push @Dpkg::Exit::handlers, sub { erasedir($tmp) };
+	my $tardir = "$tmp/$dirname";
+
+	system("bzr", "branch", $dir, $tardir);
+	$? && subprocerr("bzr branch $dir $tardir");
+
+	# Remove the working tree.
+	system("bzr", "remove-tree", $tardir);
+
+	# Some branch metadata files are unhelpful.
+	unlink("$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 @Dpkg::Exit::handlers;
+
+	$self->add_file($debianfile);
+}
+
+# Called after a tarball is unpacked, to check out the working copy.
+sub do_extract {
+	my ($self, $newdirectory) = @_;
+	my $fields = $self->{'fields'};
+
+	my $dscdir = $self->{'basedir'};
+
+	check_version($fields->{'Version'});
+
+	my $basename = $self->get_basename();
+	my $basenamerev = $self->get_basename(1);
+
+	my @files = $self->get_files();
+	if (@files > 1) {
+		error(_g("format v3.0 uses only one source file"));
+	}
+	my $tarfile = $files[0];
+	if ($tarfile !~ /^\Q$basenamerev\E\.bzr\.tar\.$comp_regex$/) {
+		error(_g("expected %s, got %s"),
+		      "$basenamerev.bzr.tar.$comp_regex", $tarfile);
+	}
+
+	erasedir($newdirectory);
+
+	# Extract main tarball
+	info(_g("unpacking %s"), $tarfile);
+	my $tar = Dpkg::Source::Archive->new(filename => "$dscdir$tarfile");
+	$tar->extract($newdirectory);
+
+	sanity_check($newdirectory);
+
+	my $old_cwd=getcwd();
+	chdir($newdirectory) ||
+		syserr(_g("unable to chdir to `%s'"), $newdirectory);
+
+	# Reconstitute the working tree.
+	system("bzr", "checkout");
+
+	chdir($old_cwd) ||
+		syserr(_g("unable to chdir to `%s'"), $old_cwd);
+}
+
+1
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index a9c6e91..2300d9b 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -113,6 +113,7 @@ nobase_dist_perllib_DATA = \
 	Dpkg/Source/Package.pm \
 	Dpkg/Source/Package/V1_0.pm \
 	Dpkg/Source/Package/V2_0.pm \
+	Dpkg/Source/Package/V3_0/bzr.pm \
 	Dpkg/Source/Package/V3_0/native.pm \
 	Dpkg/Source/Package/V3_0/git.pm \
 	Dpkg/Source/Package/V3_0/quilt.pm \
diff --git a/scripts/po/POTFILES.in b/scripts/po/POTFILES.in
index 7cc9903..33413ca 100644
--- a/scripts/po/POTFILES.in
+++ b/scripts/po/POTFILES.in
@@ -35,6 +35,7 @@ scripts/Dpkg/Source/Patch.pm
 scripts/Dpkg/Source/Package.pm
 scripts/Dpkg/Source/Package/V1_0.pm
 scripts/Dpkg/Source/Package/V2_0.pm
+scripts/Dpkg/Source/Package/V3_0/bzr.pm
 scripts/Dpkg/Source/Package/V3_0/native.pm
 scripts/Dpkg/Source/Package/V3_0/git.pm
 scripts/Dpkg/Source/Package/V3_0/quilt.pm


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