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52 lines
1.4 KiB
Markdown
52 lines
1.4 KiB
Markdown
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# GN
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GN is a meta-build system that generates build files for
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[Ninja](https://ninja-build.org).
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## Getting started
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git clone https://gn.googlesource.com/gn
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cd gn
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python build/gen.py
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ninja -C out
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On Windows, it is expected that `cl.exe`, `link.exe`, and `lib.exe` can be found
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in `PATH`, so you'll want to run from a Visual Studio command prompt, or
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similar.
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On Linux and Mac, the default compiler is `clang++`, a recent version is
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expected to be found in `PATH`. This can be overridden by setting `CC`, `CXX`,
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and `AR`.
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## Sending patches
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GN uses [Gerrit](https://www.gerritcodereview.com/) for code review. The short
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version of how to patch is:
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... edit code ...
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ninja -C out && out/gn_unittests
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Then, to upload a change for review:
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git commit
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git push origin HEAD:refs/for/master # This uploads for review.
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When revising a change, use:
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git commit --amend
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git push origin HEAD:refs/for/master
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which will add the new changes to the existing code review, rather than creating
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a new one.
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We ask that all contributors
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[sign Google's Contributor License Agreement](https://cla.developers.google.com/)
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(either individual or corporate as appropriate, select 'any other Google
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project').
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## Community
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You may ask questions and follow along w/ GN's development on Chromium's
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[gn-dev@](https://groups.google.com/a/chromium.org/forum/#!forum/gn-dev)
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Google Group.
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