Git

Pointers

HEAD

HEAD points to the current branch.

cat .git/HEAD shows what HEAD is currently pointing to

Branch points to the current commit.

Branches

git branch lists all branches , indicates which one head is pointing to

git branch some_new_branch makes a new branch but does not switch to it

git checkout -b some_new_branch makes new branch with given name , moves to new branch

git show-ref --heads lists all branches and the commit they point to

git branch -vv lists tracked branches

Detached Head

When checking out a specific commit instead of a branch the head moves to that commit. As soon as you checkout a different branch or commit the head points to the new SHA1. This means there is no longer a reference to the original commit.

When in a detached state save your work by making a new branch.

git branch someName lastCommit you only need to give the last commit as all previous will go with it

notes navigation

Current URL: /notes/00Git/06-branches/

total notes 36