/usr/share/pyshared/gbp/scripts/common/pq.py is in git-buildpackage 0.6.0~git20120601.
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#
# (C) 2011 Guido Günther <agx@sigxcpu.org>
# (C) 2012 Intel Corporation <markus.lehtonen@linux.intel.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 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
#
"""Common functionality for Debian and RPM patchqueue management"""
import re
import os
import shutil
import subprocess
from gbp.git import (GitRepositoryError, GitRepository)
from gbp.command_wrappers import (Command, GitCommand, RunAtCommand,
CommandExecFailed)
from gbp.errors import GbpError
import gbp.log
from gbp.patch_series import (PatchSeries, Patch)
PQ_BRANCH_PREFIX = "patch-queue/"
def is_pq_branch(branch):
"""
is branch a patch-queue branch?
>>> is_pq_branch("foo")
False
>>> is_pq_branch("patch-queue/foo")
True
"""
return [False, True][branch.startswith(PQ_BRANCH_PREFIX)]
def pq_branch_name(branch):
"""
get the patch queue branch corresponding to branch
>>> pq_branch_name("patch-queue/master")
>>> pq_branch_name("foo")
'patch-queue/foo'
"""
if not is_pq_branch(branch):
return PQ_BRANCH_PREFIX + branch
def pq_branch_base(pq_branch):
"""
get the branch corresponding to the given patch queue branch
>>> pq_branch_base("patch-queue/master")
'master'
>>> pq_branch_base("foo")
"""
if is_pq_branch(pq_branch):
return pq_branch[len(PQ_BRANCH_PREFIX):]
def write_patch(patch, patch_dir, options):
"""Write the patch exported by 'git-format-patch' to it's final location
(as specified in the commit)"""
oldname = os.path.basename(patch)
newname = oldname
tmpname = patch + ".gbp"
old = file(patch, 'r')
tmp = file(tmpname, 'w')
in_patch = False
topic = None
# Skip first line (From <sha1>)
old.readline()
for line in old:
if line.lower().startswith("gbp-pq-topic: "):
topic = line.split(" ",1)[1].strip()
gbp.log.debug("Topic %s found for %s" % (topic, patch))
continue
tmp.write(line)
tmp.close()
old.close()
if not options.patch_numbers:
patch_re = re.compile("[0-9]+-(?P<name>.+)")
m = patch_re.match(oldname)
if m:
newname = m.group('name')
if topic:
topicdir = os.path.join(patch_dir, topic)
else:
topicdir = patch_dir
if not os.path.isdir(topicdir):
os.makedirs(topicdir, 0755)
os.unlink(patch)
dstname = os.path.join(topicdir, newname)
gbp.log.debug("Moving %s to %s" % (tmpname, dstname))
shutil.move(tmpname, dstname)
return dstname
def get_maintainer_from_control():
"""Get the maintainer from the control file"""
cmd = 'sed -n -e \"s/Maintainer: \\+\\(.*\\)/\\1/p\" debian/control'
cmdout = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout.readlines()
if len(cmdout) > 0:
maintainer = cmdout[0].strip()
m = re.match('(?P<name>.*[^ ]) *<(?P<email>.*)>', maintainer)
if m:
return m.group('name'), m.group('email')
return None, None
def switch_to_pq_branch(repo, branch):
"""
Switch to patch-queue branch if not already there, create it if it
doesn't exist yet
"""
if is_pq_branch (branch):
return
pq_branch = pq_branch_name(branch)
if not repo.has_branch(pq_branch):
try:
repo.create_branch(pq_branch)
except CommandExecFailed:
raise GbpError, ("Cannot create patch-queue branch '%s'. Try 'rebase' instead."
% pq_branch)
gbp.log.info("Switching to '%s'" % pq_branch)
repo.set_branch(pq_branch)
def apply_single_patch(repo, branch, patch, topic=None):
switch_to_pq_branch(repo, branch)
apply_and_commit_patch(repo, patch, topic)
def apply_and_commit_patch(repo, patch, topic=None):
"""apply a single patch 'patch', add topic 'topic' and commit it"""
author = { 'name': patch.author,
'email': patch.email,
'date': patch.date }
if not (patch.author and patch.email):
name, email = get_maintainer_from_control()
if name:
gbp.log.warn("Patch '%s' has no authorship information, "
"using '%s <%s>'" % (patch.path, name, email))
author['name'] = name
author['email'] = email
else:
gbp.log.warn("Patch %s has no authorship information")
repo.apply_patch(patch.path)
tree = repo.write_tree()
msg = "%s\n\n%s" % (patch.subject, patch.long_desc)
if topic:
msg += "\nGbp-Pq-Topic: %s" % topic
commit = repo.commit_tree(tree, msg, [repo.head], author=author)
repo.update_ref('HEAD', commit, msg="gbp-pq import %s" % patch.path)
def drop_pq(repo, branch):
if is_pq_branch(branch):
gbp.log.err("On a patch-queue branch, can't drop it.")
raise GbpError
else:
pq_branch = pq_branch_name(branch)
if repo.has_branch(pq_branch):
repo.delete_branch(pq_branch)
gbp.log.info("Dropped branch '%s'." % pq_branch)
else:
gbp.log.info("No patch queue branch found - doing nothing.")
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