| commit | 01b9d7ae3d9926658c13cc359b893f71856beb15 | [log] [tgz] |
|---|---|---|
| author | Prakhar <pasthana@google.com> | Wed Apr 21 21:22:03 2021 |
| committer | Copybara-Service <copybara-worker@google.com> | Wed Apr 21 21:30:38 2021 |
| tree | 407bb71c71a4dbc20b6fa5372b71bf6b43bc5fdb | |
| parent | 0d0dcca06b28e0edb6055b57886568a0710cb1fd [diff] |
Add experimental CQ builder to test dual coverage Bug: 1016925 Change-Id: I6e323826b49bff3fd98203417e2098df8d5f9cd6 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2844390 Commit-Queue: Prakhar Asthana <pasthana@google.com> Auto-Submit: Prakhar Asthana <pasthana@google.com> Reviewed-by: Yuke Liao <liaoyuke@chromium.org> Reviewed-by: Stephen Martinis <martiniss@chromium.org> Cr-Commit-Position: refs/heads/master@{#874860} GitOrigin-RevId: 00f52573af81eeb951522ba0bc239c1316ca8b1d
MB is a simple wrapper around the GN build tool.
It was originally written as part of the GYP->GN migration, in order 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 was meant to use GN or GYP.
It eventually grew additional functionality and is now still used even though everything is GN-only.
It supports two main functions:
“gen” - the main gn gen invocation that generates the Ninja files needed for the build.
“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: