skia2/docs/quickstart.md
2015-02-03 13:12:54 -02:00

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Skia Quickstart Guide
=====================
WARNING: Several steps in this guide are out of sync with our automatically-
tested, officially-supported processes for checking out and building Skia.
The officially supported processes are the ones documented in https://skia.org;
see https://skia.org/user/quick.
The steps documented within this file are more experimental in nature.
This guide assumes you've got `git`, `ninja`, and `python` on your path.
1. First, checkout Skia:
* `git clone https://skia.googlesource.com/skia.git`
* `cd skia`
2. Then download the dependencies. You only need to rerun this when
the dependencies change.
* `python tools/git-sync-deps`
3. Create our Ninja build files from our Gyp meta-build files. You only need
to rerun this when you sync or change a `.gyp` file.
* `GYP_GENERATORS=ninja ./gyp_skia`
4. Now, let's build Skia. There are a few options:
* `ninja -C out/Debug`: no optimization, asserts enabled
* `ninja -C out/Release`: optimization, asserts disabled
* `ninja -C out/Coverage`: no optimization, asserts enabled, code coverage generated
5. Run some tests:
* `out/Debug/dm`: runs golden master tests from gm/, unit tests from tests/
6. Make some changes:
* `git checkout -b my-new-feature origin/master`
* `vim src/...`
* `git commit -am "Changes for my new feature."`
* `vim tests/...`
* `git commit --amend -a`
* `ninja -C out/Debug && out/Debug/dm && echo ok`
7. Rebase your change onto the latest Skia code:
* `git pull --rebase`
* `ninja -C out/Debug && out/Debug/dm && echo ok`
8. Upload your change and send it out for review:
* `git cl upload -r my-skia-reviewer@google.com -s`
* `git cl web`
9. Go through code review, get an LGTM, submit using the checkbox on the code review page.