commit | fb330c7867d626eab7f6bd369f41fb32418cc517 | [log] [tgz] |
---|---|---|
author | Haowei Wu <haowei@google.com> | Tue Apr 02 13:48:32 2019 -0700 |
committer | Commit Bot <commit-bot@chromium.org> | Tue Apr 02 20:55:42 2019 +0000 |
tree | 174e539edf4eeaf698eadbbb175dc6b93a3eead5 | |
parent | ac2776fddd38e6f21b39380bcef4bbd121867483 [diff] |
[gn] Always create "args.gn" file when running gn gen. After this patch, when running `gn gen out-dir` with no --args, gn will create an empty args.gn file if it does not exists. Bug: crbug.com/gn/53 Change-Id: I84ee860180c642899bfd4adcbe39e9019609b4bd Reviewed-on: https://gn-review.googlesource.com/c/gn/+/4380 Commit-Queue: Haowei Wu <haowei@google.com> Reviewed-by: Scott Graham <scottmg@chromium.org>
GN is a meta-build system that generates build files for Ninja. There is documentation in docs/ and a presentation on it.
You can download the latest version of GN binary for Linux, macOS and Windows.
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 cl.exe
, link.exe
, and 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 CC
, CXX
, and AR
.
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 w/ GN‘s development on Chromium’s gn-dev@ Google Group.