1 # MB - The Meta-Build wrapper
3 MB is a simple wrapper intended to provide a uniform interface to either
4 GYP or GN, such that users and bots can call one script and not need to
5 worry about whether a given bot is meant to use GN or GYP.
7 It supports two main functions:
9 1. "gen" - the main `gyp_chromium` / `gn gen` invocation that generates the
10 Ninja files needed for the build.
12 2. "analyze" - the step that takes a list of modified files and a list of
13 desired targets and reports which targets will need to be rebuilt.
15 We also use MB as a forcing function to collect all of the different
16 build configurations that we actually support for Chromium builds into
17 one place, in `//tools/mb/mb_config.pyl`.
19 For more information, see:
21 * [the user guide](docs/user_guide.md)
22 * [the design spec](docs/design_spec.md)