[siso] change directory to checkout dir

Siso needs to run at source checkout to find build/config/siso.
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket/8776260181170527249/+/u/Build_all_without_remote_cache/stdout

Recipe-Manual-Change: build_limited
Bug: b/288534744
Change-Id: Iaa8150b4287f208906ae8e07dd4da8afe307f73b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/build/+/4672165
Commit-Queue: Junji Watanabe <jwata@google.com>
Commit-Queue: Fumitoshi Ukai <ukai@google.com>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Auto-Submit: Junji Watanabe <jwata@google.com>
5 files changed
tree: a9fae6d41d72821fd2b49a5775a638eebb6a0ddf
  1. hook-scripts/
  2. infra/
  3. recipes/
  4. scripts/
  5. .gitattributes
  6. .gitignore
  7. .style.yapf
  8. .vpython
  9. .vpython3
  10. .yapfignore
  11. codereview.settings
  12. DEPS
  13. LICENSE
  14. OWNERS
  15. PRESUBMIT.py
  16. PRESUBMIT_test.py
  17. README.md
  18. WATCHLISTS
README.md

Recipes

If you're here to make a change to ‘recipes’ (the code located in the recipes directory), please take a look at the README for more information pertaining to recipes.

Style

The preferred style is PEP8 with two-space indent; that is, the Chromium Python style. Functions use lowercase_with_underscores, with the exception of the special functions RunSteps and RunTests in recipes. Use yapf (git cl format --no-clang-format) to autoformat new code.