|author||Nico Weber <firstname.lastname@example.org>||Thu Nov 07 09:34:58 2019 -0500|
|committer||Commit Bot <email@example.com>||Thu Nov 07 17:23:59 2019 +0000|
win: Don't use rsp files when compiling gn. Compile command lines are pretty short; even chromium doens't need rsp files for them. Makes the build a tiny bit faster because rsp files are written by ninja on the critical path, and makes the build a bit easier to work with since it's now easier to copy-paste failing compile commands. While here, also remove some needless braces, to make the file more similar to linux/mac. No intended behavior change. Change-Id: I696b0f8d8b911e76cd5cde3c0e331375e2a766f1 Reviewed-on: https://gn-review.googlesource.com/c/gn/+/6441 Reviewed-by: Scott Graham <firstname.lastname@example.org> Commit-Queue: Nico Weber <email@example.com>
GN is a meta-build system that generates build files for Ninja.
Alternatively, you can build GN from source:
git clone https://gn.googlesource.com/gn cd gn python build/gen.py ninja -C out # To run tests: out/gn_unittests
On Windows, it is expected that
lib.exe can be found in
PATH, so you'll want to run from a Visual Studio command prompt, or similar.
On Linux and Mac, the default compiler is
clang++, a recent version is expected to be found in
PATH. This can be overridden by setting
There is a simple example in examples/simple_build directory that is a good place to get started with the minimal configuration.
For a maximal configuration see the Chromium setup:
and the Fuchsia setup:
If you find a bug, you can see if it is known or report it in the bug database.
GN uses Gerrit for code review. The short version of how to patch is:
Register at https://gn-review.googlesource.com. ... edit code ... ninja -C out && out/gn_unittests
Then, to upload a change for review:
git commit git cl upload --gerrit
When revising a change, use:
git commit --amend git cl upload --gerrit
which will add the new changes to the existing code review, rather than creating a new one.
We ask that all contributors sign Google's Contributor License Agreement (either individual or corporate as appropriate, select ‘any other Google project’).
You may ask questions and follow along with GN‘s development on Chromium’s gn-dev@ Google Group.