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Aravind Vasudevan 3edda8d185 Update gclient to use git config caching 
This change updates all the modules used by gclient to use `scm.GIT` for git config calls over directly invoking the subprocess.

This change currently doesn't modify git_cache since the config reads and writes within it are done on bare repository. A follow-up CL will update git_cache.

A follow-up CL will also update git_cl and git_map_branches since they have shown performance improvements too: https://crrev.com/c/4697786.

Benchmarking
============
With chromium/src as the baseline super project, this change reduces about 380 git config calls out of 507 total calls on cache hits during no-op. The below numbers are benchmarked with `update_depot_tools` turned off.

Windows Benchmark
=================
Baseline (gpaste/6360045736951808): ~1min 12 sec.
With Caching (gpaste/6480065209040896): ~1min 3sec.
~12.5% decrease in gclient sync noop runtime.

Linux Benchmark
===============
Baseline (gpaste/4730436763254784): ~3.739 sec.
With Caching (gpaste/4849870978940928): ~3.534 sec.
~5.5% decrease in gclient sync noop runtime.

Bug: 1501984
Change-Id: Ib48df2d26a0c742a9b555a1e2ed6366221c7db17
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5252498
Commit-Queue: Aravind Vasudevan <aravindvasudev@google.com>
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
 		1 year ago
..
gstools
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OWNERS [ChromiumOS] Add a launcher for Bazel 2 years ago
auth_test.py [auth] Be able to generate id_token 2 years ago
autoninja_test.py autoninja: cache negative result of gcloud account check 1 year ago
bazel_test.py tests: switch to 4 space indent 2 years ago
bot_update_coverage_test.py Fix multiline comment formatting 1 year ago
cipd_bootstrap_test.py Update cipd_bootstrap_test to use a newer cipd client binary. 1 year ago
detect_host_arch_test.py [detect_host_arch] Cache HostArch() function 1 year ago
download_from_google_storage_unittest.py Remove __future__ imports 2 years ago
fetch_test.py fetch: stop setting submodules config as we are not using it at all 1 year ago
gclient_cipd_smoketest.py tests: switch to 4 space indent 2 years ago
gclient_eval_unittest.py Reland^3 "Upgrade python to 3.11" 1 year ago
gclient_git_mutates_smoketest.py tests: switch to 4 space indent 2 years ago
gclient_git_smoketest.py Remove .git suffix from git submodules 1 year ago
gclient_no_sync_smoketest.py tests: switch to 4 space indent 2 years ago
gclient_paths_test.py Cache values in gclient_paths.py 2 years ago
gclient_scm_test.py Update gclient to use git config caching 1 year ago
gclient_smoketest.py tests: switch to 4 space indent 2 years ago
gclient_smoketest_base.py Fix multiline comment formatting 1 year ago
gclient_test.py Fix multiline comment formatting 1 year ago
gclient_transitions_smoketest.py Fix multiline comment formatting 1 year ago
gclient_utils_test.py tests: switch to 4 space indent 2 years ago
gerrit_client_test.py tests: switch to 4 space indent 2 years ago
gerrit_util_test.py Update gclient to use git config caching 1 year ago
git_cache_test.py [git_cache] Track if git cache is fully initialized 1 year ago
git_cl_creds_check_report.txt Fix gerrit new-password URL 2 years ago
git_cl_test.py Update gclient to use git config caching 1 year ago
git_common_test.py Update gclient to use git config caching 1 year ago
git_dates_test.py tests: switch to 4 space indent 2 years ago
git_find_releases_test.py tests: switch to 4 space indent 2 years ago
git_footers_test.py tests: switch to 4 space indent 2 years ago
git_hyper_blame_test.py Fix multiline comment formatting 1 year ago
git_map_test.py tests: switch to 4 space indent 2 years ago
git_migrate_default_branch_test.py tests: switch to 4 space indent 2 years ago
git_number_test.py tests: switch to 4 space indent 2 years ago
git_rebase_update_test.py tests: switch to 4 space indent 2 years ago
gsutil_test.py [gsutil.py] Skip luci-auth wrapper on unsupported platforms 1 year ago
hooks_test.py Require prompt from users to confirm submodules commit. 2 years ago
lockfile_test.py tests: switch to 4 space indent 2 years ago
metrics_test.py tests: switch to 4 space indent 2 years ago
my_activity_test.py tests: switch to 4 space indent 2 years ago
ninja_reclient_test.py Fix deletion of old build logs 1 year ago
ninjalog_uploader_test.py ninjalog_uploader.py: use cipd to check authenticated account 1 year ago
owners_client_test.py tests: switch to 4 space indent 2 years ago
owners_finder_test.py tests: switch to 4 space indent 2 years ago
presubmit_canned_checks_test.py Fix multiline comment formatting 1 year ago
presubmit_support_test.py [presubmit] Don't replace os.environ 1 year ago
presubmit_unittest.py Refactor git functionality out of Change and _DiffCache 1 year ago
rdb_wrapper_test.py Remove __future__ imports 2 years ago
recipes_test.py tests: switch to 4 space indent 2 years ago
reclient_metrics_test.py tests: switch to 4 space indent 2 years ago
roll_dep_test.py tests: switch to 4 space indent 2 years ago
scm_unittest.py [scm] Implement caching for git config 1 year ago
split_cl_test.py tests: switch to 4 space indent 2 years ago
subcommand_test.py tests: switch to 4 space indent 2 years ago
subprocess2_test.py Fix multiline comment formatting 1 year ago
upload_to_google_storage_unittest.py Remove last py2 workarounds 2 years ago
utils_test.py tests: switch to 4 space indent 2 years ago
watchlists_unittest.py tests: switch to 4 space indent 2 years ago