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Michael Achenbach 6ea78398aa [infra] Change all Python shebangs to Python3 
The infrastructure runs everything already in Python3, so this is
mostly a clean-up.

For MB, a python2 holdover was removed and new lint errors were
fixed.

The renames were automated with:
git grep -e "/usr/bin/python$" |
  cut -d':' -f1 |
  xargs
  sed -i 's/#!\/usr\/bin\/python$/#!\/usr\/bin\/python3/1'

and
git grep -e "/usr/bin/env python$" |
  cut -d':' -f1 |
  xargs
  sed -i 's/#!\/usr\/bin\/env python$/#!\/usr\/bin\/env python3/1'

Bug: v8:13148
Change-Id: If4f3c7635e72fa134798d55314ac1aa92ddd01bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3811499
Reviewed-by: Liviu Rau <liviurau@google.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82231}
2022-08-05 14:55:00 +00:00
..
docs Fixed typos 2019-01-08 07:31:02 +00:00
mb [mb] Copy MB from Chromium repo 2016-09-01 12:20:20 +00:00
mb_test.py [infra] Change all Python shebangs to Python3 2022-08-05 14:55:00 +00:00
mb.bat [mb] Copy MB from Chromium repo 2016-09-01 12:20:20 +00:00
mb.py [infra] Change all Python shebangs to Python3 2022-08-05 14:55:00 +00:00
OWNERS [mb] Copy MB from Chromium repo 2016-09-01 12:20:20 +00:00
PRESUBMIT.py [infra] Change all Python shebangs to Python3 2022-08-05 14:55:00 +00:00
README.md [mb] Copy MB from Chromium repo 2016-09-01 12:20:20 +00:00

README.md

MB - The Meta-Build wrapper

MB is a simple wrapper intended to provide a uniform interface to either GYP or GN, such that users and bots can call one script and not need to worry about whether a given bot is meant to use GN or GYP.

It supports two main functions:

  1. "gen" - the main gyp_chromium / gn gen invocation that generates the Ninja files needed for the build.

  2. "analyze" - the step that takes a list of modified files and a list of desired targets and reports which targets will need to be rebuilt.

We also use MB as a forcing function to collect all of the different build configurations that we actually support for Chromium builds into one place, in //tools/mb/mb_config.pyl.

For more information, see: