[roll third_party/pigweed] pw_presubmit: Fix git_repo.describe_files() output

- Use '@{upstream}' as the stand-in for the upstream tracking branch
  rather than an object.
- Make manually specifying @{u} or @{upstream} equivalent to the
  default behavior.
- Fix the git_repo.describe_files() output when comparing against
  @{upstream}.
- Move tracking branch handling into list_files() and describe_files()
  so it's consistent between pw format and pw presubmit.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/77540

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 2a0d4d58330bd4b..e586e3cca6bf505
Roller-URL: https://ci.chromium.org/b/8825655601567245009
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8825655601567245009
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I77a43f8974dbe9634a141d9a87d29f299ef865e7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/77544
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: 0aeb9fca54b751341e192475e1fba28ce6acebff
  1. applications/
  2. build_overrides/
  3. pw_board_led/
  4. pw_board_led_arduino/
  5. pw_board_led_host/
  6. pw_board_led_stm32cube/
  7. pw_board_led_stm32f429i_disc1/
  8. pw_spin_delay/
  9. pw_spin_delay_arduino/
  10. pw_spin_delay_host/
  11. pw_spin_delay_stm32cube/
  12. pw_spin_delay_stm32f429i_disc1/
  13. targets/
  14. third_party/
  15. tools/
  16. .gitattributes
  17. .gitignore
  18. .gitmodules
  19. .gn
  20. activate.bat
  21. banner.txt
  22. bootstrap.bat
  23. bootstrap.sh
  24. BUILD.gn
  25. BUILDCONFIG.gn
  26. env_setup.json
  27. navbar.md
  28. OWNERS
  29. PW_PLUGINS
  30. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.