recipes-engine: add profile command

Add a profile command that operates much the same way that the debug
command does, taking in a test name and profiling that test. This uses
cProfile to create profiler output, and supports running in stdout mode
as well as file mode.

BUG=None
TEST=manual

Change-Id: I1a696c2d0c59e7da76564d13ef44d6c9f615a4a9
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/5458722
Reviewed-by: Rob Mohr <mohrr@google.com>
Reviewed-by: Chan Li <chanli@chromium.org>
Commit-Queue: Benjamin Shai <bshai@google.com>
1 file changed
tree: a5d82664afd5fc8aee77372dcb98cd7299f56b73
  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
  16. AUTHORS
  17. codereview.settings
  18. CONTRIBUTORS
  19. LICENSE
  20. OWNERS
  21. PRESUBMIT.py
  22. pyproject.toml
  23. README.md
  24. README.recipes.md
  25. recipe.warnings
  26. recipes.py
README.md

Recipes

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.

Contributing

  • Sign the Google CLA.
  • Make sure your user.email and user.name 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 https://chromium.googlesource.com/chromium/tools/depot_tools.git $HOME/src/depot_tools
export PATH="$PATH:$HOME/src/depot_tools"

# Check out the recipe engine repo
git clone https://chromium.googlesource.com/infra/luci/recipes-py $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 joe@example.com
# 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.