gwc.sh

#!/usr/bin/env bash
set -euo pipefail

usage() {
  cat <<EOF
Usage: gwc <branch> [file]

Ensures a git worktree exists for <branch>, creates it if needed,
and opens Claude Code in that worktree (optionally opening [file]).

Options:
  -h, --help   Show this help message
EOF
}

main() {
  if [[ $# -lt 1 ]]; then
    usage
    exit 1
  fi

  case "$1" in
    -h|--help)
      usage
      exit 0
      ;;
  esac

  branch="$1"
  file="${2:-}"
  dir="../$branch"

  if [[ -d "$dir" ]]; then
    echo "✔ Worktree $dir already exists, reusing..."
  else
    echo "ℹ Checking for branch $branch ..."
    if git show-ref --verify --quiet "refs/heads/$branch"; then
      echo "✔ Found local branch $branch"
      git worktree add "$dir" "$branch"
    elif git ls-remote --exit-code origin "refs/heads/$branch" >/dev/null 2>&1; then
      echo "✔ Found remote branch $branch"
      git worktree add "$dir" "$branch"
    else
      echo "⚠ Branch $branch not found, creating new branch"
      git worktree add -b "$branch" "$dir"
    fi
  fi

  echo "🚀 Opening Claude Code in $dir"
  cd "$dir"
  if [[ -n "$file" ]]; then
    claude --ide "$file"
  else
    claude --ide
  fi
}

main "$@"