[roll third_party/pigweed] pw_env_setup: Pin Python package versions

Add a file to pass to the '--constraint' option of 'pip'. This allows
setup.cfg files to only set actual requirements on dependencies but
ensures the actual version retrieved for a given commit is always the
same.

Added a new command 'pw python-packages'. 'pw python-packages list'
writes the list of versions of installed packages to a file.
'pw python-packages diff' compares the list of installed packages to the
constraint file. If there are new packages or updates to package
versions 'pw python-packages diff' will fail.

Added an option to pw_env_setup, '--unpin-pip-packages'. If this is set
the constraint file defined in the top-level '.gn' file is ignored. This
should periodically be used to update versions of packages in the
constraint file.

Original-Bug: 459
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/58280

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 38dd043be6bf0ca..43851ceac02d52b
Roller-URL: https://ci.chromium.org/b/8836660265763626465
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8836660265763626465
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iafcf392b443caacd9188a5c9af3a698f60139b83
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/60081
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: feedc611bd258a4faa0bcc9a974b90655a05b461
  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. pw_sys_io_stm32cube/
  14. targets/
  15. third_party/
  16. tools/
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. activate.bat
  22. banner.txt
  23. bootstrap.bat
  24. bootstrap.sh
  25. BUILD.gn
  26. BUILDCONFIG.gn
  27. env_setup.json
  28. navbar.md
  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.