Recent used git branch

gbf.sh

gbf() {
  if git show-ref --verify --quiet refs/heads/main; then
    main_branch="main"
  elif git show-ref --verify --quiet refs/heads/master; then
    main_branch="master"
  else
    return 1
  fi

  git for-each-ref --sort=-committerdate --format='%(refname:short)' refs/heads/ \
    | awk '!seen[$0]++' | head -n 20 | while read branch; do

    if git show-ref --verify --quiet "refs/heads/$branch"; then
      base=$(git merge-base "$branch" "$main_branch" 2>/dev/null)
      if [ -z "$base" ]; then continue; fi

      first_commit=$(git log "$branch" --no-merges --reverse --pretty=format:'%H' --not "$base" 2>/dev/null | head -n 1)

      if [ -n "$first_commit" ]; then
        msg=$(git log -1 --format=%s "$first_commit")
        date=$(git log -1 --format=%ad --date=short "$first_commit")
        printf "%-30s | %-10s | %s\n" "$branch" "$date" "$msg"
      fi
    fi
  done | fzf --prompt="Checkout branch: " | awk '{print $1}' | xargs git checkout
}

install fzf

# mac
brew install fzf

# Arch
sudo pacman -S fzf