tools/git-repo.git/command.py, branch v2.57

Remove gitc support from repo

2024-12-03T22:27:56+00:00

gitc is no longer available. Change-Id: I0cbfdf936832f2cdd4876104ae3cc5a6e26154e2 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/444841 Reviewed-by: Gavin Mak Commit-Queue: Josip Sokcevic Tested-by: Josip Sokcevic

subcmds: reduce multiprocessing serialization overhead

2024-10-23T23:34:34+00:00

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 Tested-by: Kuang-che Wu Commit-Queue: Kuang-che Wu

sync: reduce multiprocessing serialization overhead

2024-10-23T02:58:45+00:00

Background: - Manifest object is large (for projects like Android) in terms of serialization cost and size (more than 1mb). - Lots of Project objects usually share only a few manifest objects. Before this CL, Project objects were passed to workers via function parameters. Function parameters are pickled separately (in chunk). In other words, manifests are serialized again and again. The major serialization overhead of repo sync was O(manifest_size * projects / chunksize) This CL uses following tricks to reduce serialization overhead. - All projects are pickled in one invocation. Because Project objects share manifests, pickle library remembers which objects are already seen and avoid the serialization cost. - Pass the Project objects to workers at worker intialization time. And pass project index as function parameters instead. The number of workers is much smaller than the number of projects. - Worker init state are shared on Linux (fork based). So it requires zero serialization for Project objects. On Linux (fork based), the serialization overhead is O(projects) --- one int per project On Windows (spawn based), the serialization overhead is O(manifest_size * min(workers, projects)) Moreover, use chunksize=1 to avoid the chance that some workers are idle while other workers still have more than one job in their chunk queue. Using 2.7k projects as the baseline, originally "repo sync" no-op sync takes 31s for fetch and 25s for checkout on my Linux workstation. With this CL, it takes 12s for fetch and 1s for checkout. Bug: b/371638995 Change-Id: Ifa22072ea54eacb4a5c525c050d84de371e87caa Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/439921 Tested-by: Kuang-che Wu Reviewed-by: Josip Sokcevic Commit-Queue: Kuang-che Wu

cleanup: use new dict & set generator styles

2023-10-21T00:55:01+00:00

Change-Id: Ie34ac33ada7855945c77238da3ce644f8a9f8306 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/390374 Tested-by: Mike Frysinger Commit-Queue: Mike Frysinger Reviewed-by: Aravind Vasudevan

cleanup: leverage yield from in more places

2023-10-20T17:33:03+00:00

Change-Id: I4f9cb27d89241d3738486764817b51981444a903 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/390274 Reviewed-by: Aravind Vasudevan Commit-Queue: Mike Frysinger Tested-by: Mike Frysinger

delete Python 2 (object) compat

2023-10-20T04:51:01+00:00

Bug: 302871152 Change-Id: I39636d73a6e1d69efa8ade74f75c5381651e6dc8 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/390054 Commit-Queue: Mike Frysinger Reviewed-by: Aravind Vasudevan Tested-by: Mike Frysinger

isort: format codebase

2023-08-22T18:32:22+00:00

Change-Id: I6f11d123b68fd077f558d3c21349c55c5f251019 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/383715 Reviewed-by: Gavin Mak Tested-by: Mike Frysinger Commit-Queue: Mike Frysinger

gitc: drop support

2023-08-15T22:14:52+00:00

Bug: b/282775958 Change-Id: Ib6383d6fd82a017d0a6670d6558a905d41be321f Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/375314 Reviewed-by: Mike Frysinger Tested-by: Jason Chang Commit-Queue: Jason Chang

Raise repo exit errors in place of sys.exit

2023-08-07T23:56:07+00:00

Bug: b/293344017 Change-Id: I92d81c78eba8ff31b5252415f4c9a515a6c76411 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/381774 Tested-by: Jason Chang Reviewed-by: Joanna Wang Commit-Queue: Jason Chang

Format codebase with black and check formatting in CQ

2023-03-22T17:46:28+00:00

Apply rules set by https://gerrit-review.googlesource.com/c/git-repo/+/362954/ across the codebase and fix any lingering errors caught by flake8. Also check black formatting in run_tests (and CQ). Bug: b/267675342 Change-Id: I972d77649dac351150dcfeb1cd1ad0ea2efc1956 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/363474 Reviewed-by: Mike Frysinger Tested-by: Gavin Mak Commit-Queue: Gavin Mak