[cipd] Accept ensure files as paths

There are some CIPD use cases that involve checking an ensure file into
git as a means of pinning a version of a tool. We'd like to be able to
install tools based on these ensure files within a recipe, so make it
possible to call `ensure()` on a pre-existing ensure file at a specified
path in addition to a dynamically constructed ensure file.

Change-Id: I27fe552bcd5460a1b71b96cb4083214099ca3162
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/2747674
Commit-Queue: Oliver Newman <olivernewman@google.com>
Commit-Queue: Vadim Shtayura <vadimsh@chromium.org>
Auto-Submit: Oliver Newman <olivernewman@google.com>
Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>
12 files changed
tree: 1737d0a974cd584c3ea87faa6a76323a3ca9edab
  1. doc/
  2. infra/
  3. misc/
  4. recipe_engine/
  5. recipe_modules/
  6. recipe_proto/
  7. recipes/
  8. unittests/
  9. .gitattributes
  10. .gitignore
  11. .style.yapf
  12. .vpython
  13. AUTHORS
  14. codereview.settings
  15. CONTRIBUTORS
  16. LICENSE
  17. OWNERS
  18. PRESUBMIT.py
  19. README.md
  20. README.recipes.md
  21. 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.