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Goma is dead, long live RBE! (Take 2) - #196212

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rmacnak-google:goma-again
Nov 9, 2026
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rmacnak-google:goma-again

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Previous attempt raced with the addition of a new configuration, which used the just-removed flag.

Previous attempt raced with the addition of a new configuration, which used the just-removed flag.
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If both you and the PR author believe this PR qualifies for a test exemption, escalate to the tech lead for the changed area to review and apply the test-exempt label. All reviewers should feel empowered to ask for tests before escalating.

@github-actions github-actions Bot added the engine flutter/engine related. See also e: labels. label Nov 9, 2026

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Code Review

This pull request updates various CI builder configurations to remove the --no-goma flag, standardizing the build process. Additionally, the --goma and --no-goma arguments were removed from the gn tool's argument parser. A potential issue was identified regarding the removal of these arguments, as it may lead to runtime errors if there are remaining references to args.goma in the script.


parser.add_argument('--goma', default=None, action='store_true')
parser.add_argument('--no-goma', dest='goma', action='store_false')
parser.add_argument(

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high

Removing the --goma and --no-goma arguments from the parser will cause a runtime AttributeError if there are still references to args.goma in other parts of this script. All references to args.goma must be cleaned up or removed from the script to prevent runtime failures.

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Golden file changes have been found for this pull request. Click here to view and triage (e.g. because this is an intentional change).

If you are still iterating on this change and are not ready to resolve the images on the Flutter Gold dashboard, consider marking this PR as a draft pull request above. You will still be able to view image results on the dashboard, commenting will be silenced, and the check will not try to resolve itself until marked ready for review.

For more guidance, visit Writing a golden file test for package:flutter.

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.

Changes reported for pull request #196212 at sha ec8221b

@flutter-dashboard flutter-dashboard Bot added the will affect goldens Changes to golden files label Nov 9, 2026
@rmacnak-google
rmacnak-google added this pull request to the merge queue Nov 9, 2026
Merged via the queue into flutter:master with commit dab7c59 Nov 9, 2026
26 of 27 checks passed
@rmacnak-google
rmacnak-google deleted the goma-again branch November 9, 2026 18:01
chingjun added a commit to chingjun/flutter that referenced this pull request Nov 9, 2026
The 29 builder files that upstream's "Goma is dead, long live RBE!
(Take 2)" (flutter#196212) rewrote conflicted on their gn arrays with the
`--bazel`/`--no-rbe` lines: resolved as ours without `--no-goma`, which
tools/gn no longer accepts (the Bazel-only builds in linux_unopt.json
and mac_clang_tidy.json the same). The split of the Mac standalone test
builders into one step per test type (flutter#196031) merged by itself.
Regenerated after the Dart SDK roll (flutter#196217), the pub and packages
rolls: deps.lock.bzl, pub.lock.bzl (`dart pub get` at the root and in
lib/web_ui first), and the converter's builds.json, ci/builders/
BUILD.bazel and configs.bazelrc (127 builds). Checked: gn_to_bazel
--check, check_build_configs.sh, bazel_ci_test.py (23),
engine_build_configs (84), bazel_tools (46), buildifier; Bazel analysis
of ci_host_debug and of //:tool_tests //:dart_tests.
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Nov 10, 2026
flutter/flutter@d463821...fffd8c2

2026-11-10 [email protected] Roll Fuchsia Test Scripts from 8QcsP_SmbsT09VgUs... to PXc5D7S_q6sIYpfFJ... (flutter/flutter#196273)
2026-11-10 [email protected] [web] Accept the capped letter spacing line shift in kitchensink (flutter/flutter#196148)
2026-11-10 [email protected] Fix Vulkan MSAA diagonal seam in FramebufferBlend (flutter/flutter#196197)
2026-11-10 [email protected] Read back images on the raster thread on OpenGLES (flutter/flutter#195927)
2026-11-10 [email protected] [web] Unify ui.Paint across CanvasKit and Skwasm (flutter/flutter#196071)
2026-11-10 [email protected] Roll Fuchsia Test Scripts from p3N3B-Kchh1bthB6n... to 8QcsP_SmbsT09VgUs... (flutter/flutter#196249)
2026-11-09 [email protected] [Impeller] Reland clipped BackdropFilter square corners fix (flutter/flutter#195716)
2026-11-09 [email protected] [web] Recreate canvas and context on CkOffscreenSurface resize to fix WebGL clipping (flutter/flutter#192769)
2026-11-09 [email protected] Roll Dart SDK from ee0f66fa0ad2 to a2baae273bb2 (1 revision) (flutter/flutter#196245)
2026-11-09 [email protected] Add Mac web_tool_tests_1_2 and _2_2 in bringup (flutter/flutter#196241)
2026-11-09 [email protected] Roll pub packages (flutter/flutter#196246)
2026-11-09 [email protected] Increase number of 'Windows tool_integration_tests' subshards (flutter/flutter#196243)
2026-11-09 [email protected] Roll Fuchsia Test Scripts from Jo-ZgQSNDuPsjlZ4s... to p3N3B-Kchh1bthB6n... (flutter/flutter#196238)
2026-11-09 [email protected] Skip UIScene pre-migration test cases on Xcode 27 (flutter/flutter#194755)
2026-11-09 [email protected] [flutter_tools] Share Analytics.isBot and make isRunningOnBot sync (flutter/flutter#194744)
2026-11-09 [email protected] [flutter_tools] Retry chromedriver startup when its port is taken (flutter/flutter#196150)
2026-11-09 [email protected] Remove unused vulkan_provider.cc (flutter/flutter#195513)
2026-11-09 [email protected] Roll Dart SDK from 3b174b7217fe to ee0f66fa0ad2 (13 revisions) (flutter/flutter#196217)
2026-11-09 [email protected] Goma is dead, long live RBE! (Take 2) (flutter/flutter#196212)
2026-11-09 [email protected] Split DevTools customer tests into its own customer_testing_devtools shard (flutter/flutter#195871)
2026-11-09 [email protected] Split mac_host_{debug,profile,release}_arm64_tests into one step per type (flutter/flutter#196031)

If this roll has caused a breakage, revert this CL and set the roller
to dry run mode using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC [email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
chingjun added a commit to chingjun/flutter that referenced this pull request Nov 12, 2026
The branch was rebased onto master (774b051), which dropped its
nine merges of master. Those merges held the conflict resolutions and
the regenerated lock files and converter output, and the conflicts of
the replayed commits were resolved in favour of the replayed commit. So
the commits below this one are not expected to build on this base.

This commit restores what the merges held. Its tree is the tree of a
merge of the same master into the branch as it was before the rebase,
and that tree was checked: gn_to_bazel's tests (284) and --check,
check_build_configs.sh, check_generated_bazel_files.sh,
bazel_ci_test.py (23), engine_build_configs (84), bazel_tools (46),
buildifier, tools/gn_test.py (7), the analyzer over flutter_tools and
the ten tool test files the branch touches (324 tests); Bazel analysis
of ci_host_debug, of host_release_test and of //:tool_tests
//:dart_tests.

In it:
- deps.lock.bzl and pub.lock.bzl for master's DEPS and pubspec.lock,
  and the converter's output: builds.json, configs.bazelrc,
  ci/builders/BUILD.bazel and six generated BUILD.bazel files.
- dev/bots/BUILD.bazel and packages/flutter_tools/BUILD.bazel for the
  durations file upstream renamed to tool_test_durations.json.
- The builder files without `--no-goma`, which tools/gn no longer
  accepts (flutter#196212), and without mac_unopt.json, which upstream removed
  (flutter#196027).
- Upstream's side of hunks both sides had changed: dev/bots
  (run_command.dart, test.dart and their tests), tools/gn_test.py
  (test_thin_lto), shell/platform/darwin/ios/BUILD.gn, and the tool's
  android_gradle_builder_test.dart in its form after flutter#196125.
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