Revert "Reland Add gevent to recipe engine."

This reverts commit 15b7962d99c005a8be0a89ddb1b84e7702ac7636.

Reason for revert: Still not happy on windows :'(

Original change's description:
> Reland Add gevent to recipe engine.
> 
> This doesn't expose gevent to recipe userspace yet, but it changes the
> way that we run steps. IO processing is now done with gevent and
> subprocess42 is dropped.
> 
> Includes a workaround for leaking processes/handles on windows
> for steps which daemonize. Due to a trifecta of ancient bugs
> which are all fixed in python3, we'll end up continuing to
> leak handles (but no more than we already leaked with
> subprocess42).
> 
> R=​tandrii@chromium.org
> 
> Bug: 910369
> Change-Id: Ib542c918f5f5c5d7f34874e07369c67c97cdcb83
> Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/1626875
> Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
> Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>

TBR=iannucci@chromium.org,tandrii@chromium.org

Change-Id: I61e85c8534ec0e7d047d32244b52d4137223eba0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 910369
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/1628305
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
15 files changed
tree: 8051947c2c34c9e18aba5255e699630eba3b9d67
  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.