（AOSP）repo checkout指定版本

aosp 怎么切换分支？

To properly switch Android version, all you need to change is branch for your manifest repository. First determine the available branches with manifests for the different Android versions:

cd $ANDROID_ROOT

cd .repo/manifests

git branch -av   # see all available branches on origin

Select a version and

cd $ANDROID_ROOT

repo init -b <my_selected_android_version>

Such selective repo init with -b (without -u) will only update manifest branch and will not otherwise touch your tree.

Now, simply sync it:

repo sync -j8

and some time later, your Android tree will switch to another version.

Speed of this operation is mostly determined by how much default.xml manifest file differs between old and new Android versions - because if some git repository was added in new manifest, it will spend time cloning it. And if some repository was removed, if will actually blow it away.

But, by and large, this method is still much faster than initializing brand new Android tree from scratch.

https://stackoverflow.com/questions/14008113/how-to-switch-android-version-in-local-repo

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/manifests$ python repo init -b android-8.0.0_r9

遇到错误：

  File "/usr/lib/aosp_dir/aosp/.repo/repo/project.py", line 2858, in runner

    (self._project.name, name, p.stderr))

error.GitError: manifests var:

*** Please tell me who you are.

执行以下命令：

  git config --global user.email "you@example.com"

  git config --global user.name "Your Name"

fatal: unable to auto-detect email address (got ‘caoxinyu@caoxinyu-ThinkPad-T470p.(none)’)

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/repo$ git config --global user.email "caoxinyu"

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/repo$ git config --global user.email "coaxinyu@gmail.com"

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/repo$ git config --global user.name "caoxinyu"

每次都会提示下面这些，不用管。

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/repo$ python repo init -b android-8.0.0_r9

warning: redirecting to https://aosp.tuna.tsinghua.edu.cn/platform/manifest/

Your identity is: caoxinyu <coaxinyu@gmail.com>

If you want to change this, please re-run 'repo init' with --config-name

repo has been initialized in /usr/lib/aosp_dir/aosp

If this is not the directory in which you want to initialize repo, please run:

   rm -r /usr/lib/aosp_dir/aosp/.repo

and try again.

caoxinyu@caoxinyu-ThinkPad-T470p:/usr/lib/aosp_dir/aosp/.repo/repo$ python repo sync -j8

python repo sync -f

Syncing work tree:  52% (296/568)error: in `sync -f`: revision refs/tags/android-8.0.0_r9 in platform/external/valgrind not found    

syncing work tree:  86% (489/568)error: in `sync -f -j10`: revision refs/tags/android-8.0.0_r36 in platform/prebuilts/clang/host/darwin-x86 not found

system/bt/embdrv/Android.bp": not found

总结：

不建议这样弄。我尝试了几次，都以失败告终。还是研究最新的android 代码好了。或者刚开始下载的时候，就下载你想要的版本。

巴特西

（AOSP）repo checkout指定版本

aosp 怎么切换分支？

总结：

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