Properly propagate CV recipe_mod props to custom child builds

At some point the recipe engine repo set a "deprecation" warning on
uses of the cq recipe module, directing recipes to instead use the cv
recipe module.

However, the cv recipe module's props_for_child_build() method only sets
props for the cq recipe module. This means that props_for_child_build()
effectively broke (and became a no-op) for anyone that migrated to the
cv recipe module since it wasn't setting any props that it would

So this fixes that.

Recipe-Nontrivial-Roll: chromiumos
Bug: 333811087
Change-Id: I39b7c63bf84322dde90b45e1b39328dad56d8934
Reviewed-by: Yiwei Zhang <>
Commit-Queue: Ben Pastene <>
2 files changed
tree: 2835d5ab03fc7edac1ee74bdd929a2def37b3eb9
  1. doc/
  2. infra/
  3. misc/
  4. recipe_engine/
  5. recipe_modules/
  6. recipe_proto/
  7. recipes/
  8. unittests/
  9. .editorconfig
  10. .gitattributes
  11. .gitignore
  12. .pycharm.vpython3
  13. .style.yapf
  14. .vpython3
  15. .vscode.vpython3
  17. codereview.settings
  20. OWNERS
  22. pyproject.toml
  25. recipe.warnings


Recipes are a domain-specific language (embedded in Python) for specifying sequences of subprocess calls in a cross-platform and testable way.

They allow writing build flows which integrate with the rest of LUCI.

Documentation for the recipe engine (including this file!). Take a look at the user guide for some hints on how to get started. See the implementation details doc for more detailed implementation information about the recipe engine.


  • Sign the Google CLA.
  • Make sure your and are configured in git config.

Run the following to setup the code review tool and create your first review:

# Get `depot_tools` in $PATH if you don't have it
git clone $HOME/src/depot_tools
export PATH="$PATH:$HOME/src/depot_tools"

# Check out the recipe engine repo
git clone $HOME/src/recipes-py

# make your change
cd $HOME/src/recipes-py
git new-branch cool_feature
# hack hack
git commit -a -m "This is awesome"

# This will ask for your Google Account credentials.
git cl upload -s -r
# Wait for approval over email.
# Click "Submit to CQ" button or ask reviewer to do it for you.
# Wait for the change to be tested and landed automatically.

Use git cl help and git cl help <cmd> for more details.