查看Tracking Branches:
$ git branch
branch1
* master
$ git branch --all
branch1
* master
remotes/origin/master #This is the tracking branch.
查看Tracking branch信息
$ git log origin/master --oneline -5
b1a2fd9 (HEAD -> master, origin/master) Merge branch 'featureX'
bc6f532 from master
5598e7d test git merge conflict
0f03a6a Merge branch 'featureY'
44591ba test add featureY
改变Tracking branch origin/HEAD指针
git remote set-head origin branch1
本地添加一个文件之后，提交
$ git commit -m "add feature 1"
[master 01b8b49] add feature 1
1 file changed, 1 insertion(+)
create mode 100644 feature1.txt
此时查看状态，会提示当前的分支比origin/master超前一个commit.
$ git status
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
(use "git push" to publish your local commits)
nothing to commit, working tree clean
总结
image.png
