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Most projects will have their branch heads matching in all branches, so switching between them should be just a matter of updating the work tree's HEAD symref. This can be done in pure Python, saving quite a bit of time over forking 'git checkout'. Signed-off-by: Shawn O. Pearce <sop@google.com>
59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
#
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# Copyright (C) 2009 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 progress import Progress
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class Checkout(Command):
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common = True
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helpSummary = "Checkout a branch for development"
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helpUsage = """
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%prog <branchname> [<project>...]
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"""
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helpDescription = """
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The '%prog' command checks out an existing branch that was previously
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created by 'repo start'.
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The command is equivalent to:
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repo forall [<project>...] -c git checkout <branchname>
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"""
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def Execute(self, opt, args):
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if not args:
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self.Usage()
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nb = args[0]
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err = []
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all = self.GetProjects(args[1:])
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pm = Progress('Checkout %s' % nb, len(all))
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for project in all:
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pm.update()
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if not project.CheckoutBranch(nb):
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err.append(project)
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pm.end()
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if err:
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if len(err) == len(all):
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print >>sys.stderr, 'error: no project has branch %s' % nb
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else:
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for p in err:
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print >>sys.stderr,\
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"error: %s/: cannot checkout %s" \
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% (p.relpath, nb)
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sys.exit(1)
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