git-commands.md

Submodule

• Undo a local commit git reset HEAD~

• Add submodule rock to my project git submodule add https://github.com/<user>/rock rock

  Note that in old version of git, you need to down the contents of rock
  git submodule update --init --recursive

• Clone the project with submodule git clone --recursive <project url>

  Or git clone <project url> then git submodule update --init --recursive

• Remove a submodule

1. git submodule deinit -f -- a/submodule
2. rm -rf .git/modules/a/submodule
3. git rm -f a/submodule

Note: a/submodule (no trailing slash)

or, if you want to leave it in your working tree and have done step 0

3. git rm --cached a/submodule 3bis mv a/submodule_tmp a/submodule

Remove remote tag

git push --delete origin <tagname>

If you also need to delete the local tag, use:

git tag --delete <tagname>

Syncing fork with upstream

1. git remote add upstream https://github.com/otheruser/repo.git
2. git fetch upstream
3. git checkout master
4. git merge upstream/master
5. git push