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Currently repo-rebase requires that all modifications be committed locally before it will allow the rebase. In high-velocity environments, you may want to just pull in newer code without explicitly creating local commits, which is typically achieved using git-stash. If called with the --auto-stash command line argument, and it is determined that the current index is dirty, the local modifications are stashed, and the rebase continues. If a stash was performed, that stash is popped once the rebase completes. Note that there is still a possibility that the git-stash pop will result in a merge conflict. Change-Id: Ibe3da96f0b4486cb7ce8d040639187e26501f6af
129 lines
4.1 KiB
Python
129 lines
4.1 KiB
Python
#
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# Copyright (C) 2010 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from command import Command
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from git_command import GitCommand
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from git_refs import GitRefs, HEAD, R_HEADS, R_TAGS, R_PUB, R_M
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from error import GitError
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class Rebase(Command):
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common = True
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helpSummary = "Rebase local branches on upstream branch"
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helpUsage = """
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%prog {[<project>...] | -i <project>...}
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"""
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helpDescription = """
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'%prog' uses git rebase to move local changes in the current topic branch to
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the HEAD of the upstream history, useful when you have made commits in a topic
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branch but need to incorporate new upstream changes "underneath" them.
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"""
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def _Options(self, p):
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p.add_option('-i', '--interactive',
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dest="interactive", action="store_true",
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help="interactive rebase (single project only)")
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p.add_option('-f', '--force-rebase',
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dest='force_rebase', action='store_true',
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help='Pass --force-rebase to git rebase')
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p.add_option('--no-ff',
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dest='no_ff', action='store_true',
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help='Pass --no-ff to git rebase')
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p.add_option('-q', '--quiet',
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dest='quiet', action='store_true',
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help='Pass --quiet to git rebase')
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p.add_option('--autosquash',
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dest='autosquash', action='store_true',
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help='Pass --autosquash to git rebase')
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p.add_option('--whitespace',
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dest='whitespace', action='store', metavar='WS',
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help='Pass --whitespace to git rebase')
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p.add_option('--auto-stash',
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dest='auto_stash', action='store_true',
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help='Stash local modifications before starting')
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def Execute(self, opt, args):
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all = self.GetProjects(args)
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one_project = len(all) == 1
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if opt.interactive and not one_project:
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print >>sys.stderr, 'error: interactive rebase not supported with multiple projects'
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return -1
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for project in all:
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cb = project.CurrentBranch
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if not cb:
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if one_project:
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print >>sys.stderr, "error: project %s has a detatched HEAD" % project.relpath
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return -1
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# ignore branches with detatched HEADs
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continue
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upbranch = project.GetBranch(cb)
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if not upbranch.LocalMerge:
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if one_project:
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print >>sys.stderr, "error: project %s does not track any remote branches" % project.relpath
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return -1
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# ignore branches without remotes
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continue
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args = ["rebase"]
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if opt.whitespace:
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args.append('--whitespace=%s' % opt.whitespace)
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if opt.quiet:
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args.append('--quiet')
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if opt.force_rebase:
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args.append('--force-rebase')
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if opt.no_ff:
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args.append('--no-ff')
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if opt.autosquash:
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args.append('--autosquash')
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if opt.interactive:
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args.append("-i")
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args.append(upbranch.LocalMerge)
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print >>sys.stderr, '# %s: rebasing %s -> %s' % \
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(project.relpath, cb, upbranch.LocalMerge)
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needs_stash = False
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if opt.auto_stash:
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stash_args = ["update-index", "--refresh", "-q"]
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if GitCommand(project, stash_args).Wait() != 0:
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needs_stash = True
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# Dirty index, requires stash...
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stash_args = ["stash"]
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if GitCommand(project, stash_args).Wait() != 0:
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return -1
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if GitCommand(project, args).Wait() != 0:
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return -1
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if needs_stash:
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stash_args.append('pop')
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stash_args.append('--quiet')
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if GitCommand(project, stash_args).Wait() != 0:
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return -1
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