Create and delete git worktrees quickly

agent-git-trees.sh

confirm() {
    # call with a prompt string or use a default
    read -r -p "${1:-Are you sure? [y/N]} " response
    case "$response" in
        [yY][eE][sS]|[yY]) 
            true
            ;;
        *)
            false
            ;;
    esac
}


# Create a new worktree and branch from within current git directory.
gwa() {
  if [ $# -eq 0 ]; then
    echo "Usage: gwa [branch name]"
    return 1
  fi

  local branch="$1"
  local base="$(basename "$PWD")"
  local new="../${base}--${branch}"

  git worktree add -b "$branch" "$new"
  cd "$new"
}

# Remove worktree and branch from within active worktree directory.
gwd() {
  if confirm "Remove current worktree and branch? [y/N]"; then
    local cwd base branch root

    cwd="$(pwd)"
    worktree="$(basename "$cwd")"

    # split on first `--`
    root="${worktree%%--*}"
    branch="${worktree#*--}"

    # Protect against accidentially nuking a non-worktree directory
    if [[ "$root" != "$worktree" ]]; then
      cd "../$root"
      git worktree remove "$worktree" --force
      git branch -D "$branch"
    fi
  fi
}