Mac下载编译chromium源码

安装depot_tools工具

获取depot_tools工具

1	git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

添加环境变量

把depot_tools工具路径添加到系统的环境变量，~/.bashrc or ~/.zshrc。

1	export PATH=$PATH:/path/to/depot_tools

获取chromium源码

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mkdir chromium
cd chromium
fetch --no-history chromium

--no-history参数可以不下载以往的历史信息。
如果网络中断了，输入gclient sync继续下载。

获取依赖：

1	gclient runhooks

更新代码：

1 2	git rebase-update gclient sync

编译chromium源码

GYP_DEFINES=mac_sdk=10.11（可选）
export GYP_GENERATORS=ninja,xcode-ninja

./build/gyp_chromium

ninja -C out/Release/ chrome

最新使用gn用于生成ninja文件，gn gen out/Default。

问题：

Traceback (most recent call last):
  File "./gyp-mac-tool", line 712, in <module>
    sys.exit(main(sys.argv[1:]))
  File "./gyp-mac-tool", line 29, in main
    exit_code = executor.Dispatch(args)
  File "./gyp-mac-tool", line 44, in Dispatch
    return getattr(self, method)(*args[1:])
  File "./gyp-mac-tool", line 67, in ExecCopyBundleResource
    self._CopyStringsFile(source, dest)
  File "./gyp-mac-tool", line 133, in _CopyStringsFile
    import CoreFoundation
ImportError: No module named CoreFoundation
[6208/20844] MACTOOL copy-bundle-resource ../../chrome/app/nibs/AppMenu.xib

解决：

1	pip install pyobjc

运行chromiun

编译完成后会在out/Release下生成Chromium.app，直接运行：

编译iOS平台

为了编译成iOS平台的版本，可以直接把本地存在的Mac checkout转成iOS checkout，只要在chromium/.gclient文件的最后加一行target_os = ["ios"]

这里使用gn生成ninja文件：

1	gn args out/Debug-iphonesimulator

写入内容：

# Set to true if you have a valid code signing key.
ios_enable_code_signing = false
target_os = "ios"
# Set to "x86", "x64", "arm", "armv7", "arm64". "x86" and "x64" will create a
# build to run on the iOS simulator (and set use_ios_simulator = true), all
# others are for an iOS device.
target_cpu = "x64"
# Release vs debug build.
is_debug = true

最后执行：

1	gclient sync

编译：

1	ninja -C out/Debug-iphonesimulator All

运行测试app:

1	./iossim -d "iPhone 6" -s 9.3 ./base_unittests.app

单个模块

1	ninja -C out/Debug-iphonesimulator net

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export GYP_GENERATORS=xcode-ninja 
export CHROMIUM_GYP_FILE='net/net.gyp'
./build/gyp_chromium

参考文档

Get the Code: Checkout, Build, & Run Chromium