Git branching

gitbranching

How to list branches?


git branch  #show all local branches.
git branch -r  #show all remote branches.
git branch -a  #show all local and remote branches.
git show-branch  #show branches and their commits.

How to find out which is the current branch?


git branch  #* master

How to create a branch?


git branch branch_name  #reate a branch named name from “master”. The master can also be any {commit ID, branch name, tag name}.

Note: this does not switch you to the newly created branch.

How to switch to a branch (checkout a branch)?

Note: before you switch to a branch, best to commit your changes first.


git checkout branch_name  #update current dir's files to be the branch named branch_name's code. (technically: updating the index, working tree, and HEAD to reflect the specified branch.)

How to rename branch?


git branch -m old_name new_name  #rename branch.
git branch -M old_name new_name  #ename branch, even if there already exists a branch named new_name.

How to merge branch?

WARNING: you should commit before you merge, because, otherwise, when merge has conflicts it’s hard to revert to your uncommited pre-merge state.
First, switch to the branch you wan to merge to.


git checkout branch_name
git merge name  #merge a branch named name into the current branch (typically the “master”).

Note: merge won’t remove a branch. After you merge, you can remove a branch by git branch -d branch_name

How to remove/delete a branch?


git branch -d branch_name  #delete the branch. (the branch must be merged first)
git branch -D branch_name  #force delete the branch.

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