Git Commands

GIT.md

GIT Command Line

Commits

• git commit -am "Add comment here"
  add and commit all changed files in one code by using -am flag

• git config --global alias.ac "commit -am"
  create new custom commands called ac that adds all changed files and commits (commit -am)

• git commit --amend -m "New message"
  update comments of the last commit using --amend -m flag

• git add .
git commit --amend --no-edit
  update the last commit with new files using --amend flag, while keeping the old comment using --no-edit flag
  NOTE: this only works if commmit has not been pushed to remote repo

• git revert {commit hash}
  go back to the previous state without removing the last commit

• git stash
git stash pop
  remove changes without committing to repo (stash) and add them (changes) back when ready to continue working (stash pop)

Branches

• git checkout {branch name}
  switch to branch
  NOTE: to go to previous branch you have checked out from use - flag instead of branch name

• git branch -M new_name
  rename branch with new_name using -M flag

• git fetch origin
git reset --hard origin/master
git clean -df
  when local repo is messed up and want to go back to original state from remote repo:

  • get latest code from remote repo with fetch,
  • overwrite local code with the fetched remote code using --hard flag with reset
  • remove untracked files or build artifacts with clean

• git rebase master --interactive
  pull up a file with a list of commits on this branch

• git branch -d {branch}
  delete a branch using -d flag

Log

• git log --graph --oneline --decorate
  desplay log in more concise fashion

• git log --pretty=format:"%h - %an, %ar : %s"
  specify your own log output using format specifiers (e.g. %h) Specifier Description of Output %H - Commit hash
  %h - Abbreviated commit hash
  %T - Tree hash
  %t - Abbreviated tree hash
  %P - Parent hashes
  %p - Abbreviated parent hashes
  %an - Author name
  %ae - Author email
  %ad - Author date (format respects the --date=option)
  %ar - Author date, relative
  %cn - Committer name
  %ce - Committer email
  %cd - Committer date
  %cr - Committer date, relative
  %s - Subject

Sources:

• https://youtu.be/ecK3EnyGD8o
• Viewing the Commit History

Delete a remote branch

$ git push origin --delete <branch> # Git version 1.7.0 or newer
$ git push origin :<branch> # Git versions older than 1.7.0

Delete a local branch

• $ git branch --delete <branch>
• $ git branch -d <branch> # Shorter version
• $ git branch -D <branch> # Force delete un-merged branches

Delete a local remote-tracking branch

$ git branch --delete --remotes <remote>/<branch>

$ git branch -dr <remote>/<branch> # Shorter

$ git fetch <remote> --prune # Delete multiple obsolete tracking branches

$ git fetch <remote> -p # Shorter

Check Repo size

• git count-objects -vH | grep 'size-pack' checks local repository size

• gh repo list {owner} --json name,diskUsage --limit 999

• gh repo list {owner} --json name,diskUsage --limit 999 | \ jq '.[] | {name: .name, size_MB: (.diskUsage / 1024 | round) }' checks remote (GitHub) repo size in KB