llvm_tools: add lint_llvm_patches.py

This checks for simple errors with PATCHES.json, and gets run during
presubmits.

BUG=b:406239688
TEST=Ran the script with:
TEST=  - malformed JSON
TEST=  - unused patch files
TEST=  - nonexistent patch files
TEST=Also, checked `repo upload` output to verify the check gets run.

Change-Id: Ic5a545855a11f6f2eed4b3029a50f116f814edad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/6394156
Reviewed-by: Jordan Abrahams-Whitehead <ajordanr@google.com>
Tested-by: George Burgess <gbiv@chromium.org>
Commit-Queue: George Burgess <gbiv@chromium.org>
3 files changed
tree: a5bd43da9fdb7215695ffbc966a39d447c0792f4
  1. afdo_metadata/
  2. afdo_redaction/
  3. afdo_tools/
  4. bot_tools/
  5. compiler_wrapper/
  6. contrib/
  7. cros_utils/
  8. cwp/
  9. llvm_extra/
  10. llvm_patches/
  11. llvm_tools/
  12. pgo_tools/
  13. pgo_tools_rust/
  14. py/
  15. rust-analyzer-chromiumos-wrapper/
  16. rust_tools/
  17. seccomp_tools/
  18. toolchain_utils_githooks/
  19. upstream_workon/
  20. .gitignore
  21. android_merge_from_upstream.sh
  22. auto_abandon_cls.py
  23. check_portable_toolchains.py
  24. compiler-test.sh
  25. crate_ebuild_help.py
  26. DIR_METADATA
  27. LICENSE
  28. OWNERS
  29. OWNERS.toolchain
  30. PRESUBMIT.cfg
  31. pyrightconfig.json
  32. pyrun
  33. python_wrapper.py
  34. README.chromium
  35. README.md
  36. run_python_tests.sh
  37. run_tests_for.py
README.md

toolchain-utils

Various utilities used by the ChromeOS toolchain team.

Note

To run Python scripts in this directory, first run:

export PYTHONPATH=$(readlink -f .):$PYTHONPATH

from this directory.

Then you can run any script.

To get help on any script, type in python <script> --help, or refer to the header of the script for more information.