Explicitly call python3 on release engine branches

CP of https://flutter-review.googlesource.com/c/recipes/+/12740 to
release engine recipes.

BUG=https://github.com/flutter/flutter/issues/80727

Change-Id: I5ee66a27f4847825b1e31824ac77f6538d3b3c33
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/12944
Reviewed-by: Godofredo Contreras <godofredoc@google.com>
Commit-Queue: Christopher Fujino <fujino@google.com>
50 files changed
tree: 77163e43f3f63460544c30d32ec96d2cff92a758
  1. infra/
  2. recipe_modules/
  3. recipes/
  4. .gitignore
  5. .style.yapf
  6. AUTHORS
  7. branch_recipes.py
  8. LICENSE
  9. OWNERS
  10. README.md
  11. recipes.py
README.md

Flutter LUCI Recipes

This repository contains Flutter's LUCI recipes. For the LUCI infrastructure config, see flutter/infra on GitHub. Actual builds can be seen at ci.chromium.org.

Config

Tricium configurations recipes repo.

Recipe Branching for Releases

The script branch_recipes.py is used to generate new copies of the LUCI recipes for a beta release. See Recipe Branching for Releases for more information. For usage:

$ ./branch_recipes.py --help