Git Cheatsheet

Committing and Undoing

Adding file for committing

$ git add <filename>

or

$ git add .

Executing Commit

$ git commit -m "This is my comment"

or adding + committing in one

$ git commit -am "My comment"

Undoing all changes

Reverts all changes to the last commit

$ git reset --hard

Jumping back to a given SHA

## reset the index to the desired tree
git reset 56e05fced

## move the branch pointer back to the previous HEAD
git reset --soft HEAD@{1}

git commit -m "Revert to 56e05fced"

## Update working copy to reflect the new commit
git reset --hard

Removing a tracked file

To remove a tracked file from git but not from the local file system use

git rm --cached <filename>

Merging

Merge single file(s)

$ git checkout <local-branch-name> <file-path>

Undo a merge

git reset --hard commit_sha

or simply

git reset --hard origin/HEAD

to reset to the last remote commit. Attention, undo obviously only local merges.

Update from original repo

$ git remote add upstream <org_git_url>

Then you can fetch it normally through

$ git pull upstream <branch>

Branches

List all branches

$ git branch -v

Create Branch

Checks out a branch and automatically switches to it.

$ git checkout -b <new-branch-name>

Download a remote branch

$ git checkout -b local-branch-name origin/remote-branch-name

Publish a local branch

$ git push -u origin <local-branch-name>

Delete local branch

$ git branch -D bugfix

Delete remote branch

$ git push origin :<remote-branch-name>

Delete tags

Local tags

git tag -l | xargs git tag -d

Remote tags

$ git ls-remote --tags origin | awk '/^(.*)(\s+)(.*[0-9])$/ {print ":" $2}' | xargs git push origin

Sync with a remote fork

First add a "remote" to the original fork

git remote add upstream https://github.com/otheruser/repo.git

...then you can update just normally using

git pull upstream master

Submodules

Initialize

To initialize and update existing submodules simply use

git submodule init
git submodule update

Update

To update all submodules in the sense of performing a git pull on all of them you can use

git submodule foreach git pull

which will iterate through each of the submodule.

Git Configuration

Pretty logs

Add an alias to your ~/.gitconfig like

[alias]
  lg = log --graph --full-history --all --color --pretty=tformat:"%x1b[31m%h%x09%x1b[32m%d%x1b[0m%x20%s%x20%x1b[33m(%an)%x1b[0m"

Alternatively (as described here )

lg = log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit

Autocompletion

Download this file to ~/ and rename it to .git-completion.bash. Then open .bash_profile and add

source ~/.git-completion.bash

Autocorrect

git config --global help.autocorrect 1

Automatically create version tag

grep -Eo "AssemblyVersion\(\"(.*)\"\)" AssemblyVersionInfo.cs | cut -d\" -f2

Reference Table