[aosp][Android] 如何查看当前分支

1. 如何查看本地Android代码的分支信息，以及查看更多的分支

git --git-dir=.repo/manifests/.git/ branch -av
  remotes/m/lineage-15.1      -> origin/lineage-15.1
  remotes/origin/lineage-15.1 5f30c52 Track our own fork(s) for 2021-07 ASB patching
  remotes/origin/lineage-16.0 ba8713c Track our own fork(s) for 2021-08 ASB patching
  remotes/origin/lineage-17.1 ae706e7 Track our own fork(s) for 2021-08 ASB patching

2. 切换分支版本

repo init -b gingerbread-release

3.如果本地版本库中的源代码有一些改动，执行repo sync命令后，会出现错误，执行重置

repo forall -c git reset --hard remotes/origin/xxxxxxx
repo forall -c git xxxxxxx
repo sync