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b5d075d04f
Now that we have a bunch of subcommands doing parallel execution, a common pattern arises that we can factor out for most of them. We leave forall alone as it's a bit too complicated atm to cut over. Change-Id: I3617a4f7c66142bcd1ab030cb4cca698a65010ac Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/301942 Tested-by: Mike Frysinger <vapier@google.com> Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
# Copyright (C) 2008 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 functools
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import io
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from command import DEFAULT_LOCAL_JOBS, PagedCommand
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class Diff(PagedCommand):
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common = True
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helpSummary = "Show changes between commit and working tree"
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helpUsage = """
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%prog [<project>...]
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The -u option causes '%prog' to generate diff output with file paths
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relative to the repository root, so the output can be applied
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to the Unix 'patch' command.
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"""
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PARALLEL_JOBS = DEFAULT_LOCAL_JOBS
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def _Options(self, p):
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p.add_option('-u', '--absolute',
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dest='absolute', action='store_true',
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help='Paths are relative to the repository root')
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def _ExecuteOne(self, absolute, project):
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"""Obtains the diff for a specific project.
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Args:
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absolute: Paths are relative to the root.
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project: Project to get status of.
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Returns:
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The status of the project.
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"""
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buf = io.StringIO()
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ret = project.PrintWorkTreeDiff(absolute, output_redir=buf)
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return (ret, buf.getvalue())
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def Execute(self, opt, args):
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all_projects = self.GetProjects(args)
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def _ProcessResults(_pool, _output, results):
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ret = 0
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for (state, output) in results:
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if output:
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print(output, end='')
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if not state:
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ret = 1
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return ret
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return self.ExecuteInParallel(
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opt.jobs,
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functools.partial(self._ExecuteOne, opt.absolute),
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all_projects,
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callback=_ProcessResults,
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ordered=True)
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