[infra] Add a GN flag to omit git information

After Clang 6.0, changing the value of a single string can change the
order of symbols in the .rodata section. This confuses Golem's
checks for the equivalence of two binaries.

This change adds a GN flag to omit the git hash and commit time from
the Dart VM's version string to avoid re-running Golem benchmarks on
commits where the only VM change is in the version string.

To use it, pass --gn-args="dart_version_git_info=false" to gn.py

Change-Id: I8134714d50e3c9b6dae750a515dc3c2228d76b53
Reviewed-on: https://dart-review.googlesource.com/33000
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
3 files changed
tree: eee0f157fce35bb13ed8cd918199d8af5b0d3389
  1. build/
  2. client/
  3. docs/
  4. pkg/
  5. runtime/
  6. samples/
  7. samples-dev/
  8. sdk/
  9. tests/
  10. third_party/
  11. tools/
  12. utils/
  13. .clang-format
  14. .gitattributes
  15. .gitignore
  16. .gn
  17. .mailmap
  18. .packages
  19. AUTHORS
  20. BUILD.gn
  21. CHANGELOG.md
  22. codereview.settings
  23. DEPS
  24. LICENSE
  25. PATENTS
  26. PRESUBMIT.py
  27. README.dart-sdk
  28. README.md
  29. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

License & patents

See LICENSE and PATENTS.