git从历史上的某一次提交处建立分支

 

$ git log --oneline --all --graph --decorate
* 1efcf18 (HEAD -> master) 4 commit
* 6a7ace8 3 commit
* 3be5879 2 commit
* 3d1a4d4 1 commit


$ git branch
* master

$ git branch dev 3be5879

$ git branch
  dev
* master

$ git log --oneline --all --graph --decorate
* 1efcf18 (HEAD -> master) 4 commit
* 6a7ace8 3 commit
* 3be5879 (dev) 2 commit
* 3d1a4d4 1 commit

$ git checkout dev
Switched to branch 'dev'

$ touch dev_file

$ git add .

$ git commit -m 'dev commit'
[dev c7b5ce1] dev commit
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 dev_file

$ git log --oneline --all --graph --decorate
* c7b5ce1 (HEAD -> dev) dev commit
| * 1efcf18 (master) 4 commit
| * 6a7ace8 3 commit
|/
* 3be5879 2 commit
* 3d1a4d4 1 commit