git-repo/subcmds/download.py
Shawn O. Pearce 632768bc65 Teach repo how to download changes to the local checkout
Now `repo download . 1402` would download the change numbered 1402
into the current project and check it out for the user, using a
detached HEAD.  `repo sync .` would back out of the change and
return to the upstream version.

Multiple projects can be fetched at once by listing them out on
the command line as different arguments.

Individual patch sets can be selected by adding a '/n' to indicate
the n-th patch set should be downloaded instead of the default of
patch set 1.

Signed-off-by: Shawn O. Pearce <sop@google.com>
2008-10-23 14:43:28 -07:00

79 lines
2.2 KiB
Python

#
# Copyright (C) 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import re
import sys
from command import Command
CHANGE_RE = re.compile(r'^([1-9][0-9]*)(?:[/\.-]([1-9][0-9]*))?$')
class Download(Command):
common = True
helpSummary = "Download and checkout a change"
helpUsage = """
%prog {project change[/patchset]}...
"""
helpDescription = """
The '%prog' command downloads a change from the review system and
makes it available in your project's local working directory.
"""
def _Options(self, p):
pass
def _ParseChangeIds(self, args):
to_get = []
project = None
for a in args:
m = CHANGE_RE.match(a)
if m:
if not project:
self.Usage()
chg_id = int(m.group(1))
if m.group(2):
ps_id = int(m.group(2))
else:
ps_id = 1
to_get.append((project, chg_id, ps_id))
else:
project = self.GetProjects([a])[0]
return to_get
def Execute(self, opt, args):
for project, change_id, ps_id in self._ParseChangeIds(args):
dl = project.DownloadPatchSet(change_id, ps_id)
if not dl:
print >>sys.stderr, \
'[%s] change %d/%d not found' \
% (project.name, change_id, ps_id)
sys.exit(1)
if not dl.commits:
print >>sys.stderr, \
'[%s] change %d/%d has already been merged' \
% (project.name, change_id, ps_id)
continue
if len(dl.commits) > 1:
print >>sys.stderr, \
'[%s] %d/%d depends on %d unmerged changes:' \
% (project.name, change_id, ps_id, len(dl.commits))
for c in dl.commits:
print >>sys.stderr, ' %s' % (c)
project._Checkout(dl.commit)