mirror of
https://gerrit.googlesource.com/git-repo
synced 2024-12-21 07:16:21 +00:00
8da4861b38
Follow the same approach as 39ffd9977e to reduce serialization overhead.
Below benchmarks are tested with 2.7k projects on my workstation
(warm cache). git tracing is disabled for benchmark.
(seconds) | v2.48 | v2.48 | this CL | this CL
| | -j32 | | -j32
-----------------------------------------------------------
with clean tree state:
branches (none) | 5.6 | 5.9 | 1.0 | 0.9
status (clean) | 21.3 | 9.4 | 19.4 | 4.7
diff (none) | 7.6 | 7.2 | 5.7 | 2.2
prune (none) | 5.7 | 6.1 | 1.3 | 1.2
abandon (none) | 19.4 | 18.6 | 0.9 | 0.8
upload (none) | 19.7 | 18.7 | 0.9 | 0.8
forall -c true | 7.5 | 7.6 | 0.6 | 0.6
forall -c "git log -1" | 11.3 | 11.1 | 0.6 | 0.6
with branches:
start BRANCH --all | 21.9 | 20.3 | 13.6 | 2.6
checkout BRANCH | 29.1 | 27.8 | 1.1 | 1.0
branches (2) | 28.0 | 28.6 | 1.5 | 1.3
abandon BRANCH | 29.2 | 27.5 | 9.7 | 2.2
Bug: b/371638995
Change-Id: I53989a3d1e43063587b3f52f852b1c2c56b49412
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/440221
Reviewed-by: Josip Sokcevic <sokcevic@google.com>
Tested-by: Kuang-che Wu <kcwu@google.com>
Commit-Queue: Kuang-che Wu <kcwu@google.com>
88 lines
2.8 KiB
Python
88 lines
2.8 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
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from command import 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(
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"-u",
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"--absolute",
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dest="absolute",
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action="store_true",
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help="paths are relative to the repository root",
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)
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@classmethod
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def _ExecuteOne(cls, absolute, local, project_idx):
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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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local: a boolean, if True, the path is relative to the local
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(sub)manifest. If false, the path is relative to the outermost
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manifest.
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project_idx: Project index 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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project = cls.get_parallel_context()["projects"][project_idx]
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ret = project.PrintWorkTreeDiff(absolute, output_redir=buf, local=local)
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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(
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args, all_manifests=not opt.this_manifest_only
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)
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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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with self.ParallelContext():
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self.get_parallel_context()["projects"] = all_projects
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return self.ExecuteInParallel(
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opt.jobs,
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functools.partial(
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self._ExecuteOne, opt.absolute, opt.this_manifest_only
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),
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range(len(all_projects)),
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callback=_ProcessResults,
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ordered=True,
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chunksize=1,
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)
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