create-worktree.sh

#!/bin/bash

set -e

if [ $# -ne 1 ]; then
  echo "Usage: create-git-worktree <worktree-name>" >&2
  exit 1
fi

WORKTREE_NAME="$1"

if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
  echo "Error: Not inside a git repository" >&2
  exit 1
fi

REPO_ROOT=$(git rev-parse --show-toplevel)
REPO_NAME=$(basename "$REPO_ROOT")
REPO_PARENT=$(dirname "$REPO_ROOT")

echo "Getting default branch..."
DEFAULT_BRANCH=$(git symbolic-ref --short refs/remotes/origin/HEAD 2>/dev/null | sed 's|^origin/||')

if [ -z "$DEFAULT_BRANCH" ]; then
  echo "Error: Could not determine default branch" >&2
  echo "Please run: git remote set-head origin --auto" >&2
  exit 1
fi

echo "Default branch: $DEFAULT_BRANCH"

echo "Fetching latest default branch..."
if ! git fetch origin "$DEFAULT_BRANCH"; then
  echo "Error: Failed to fetch default branch" >&2
  exit 1
fi

WORKTREE_PATH="$REPO_PARENT/$REPO_NAME-$WORKTREE_NAME"

echo "Creating worktree: $WORKTREE_PATH"
if ! git worktree add -b "$WORKTREE_NAME" "$WORKTREE_PATH" "origin/$DEFAULT_BRANCH"; then
  echo "Error: Failed to create worktree" >&2
  exit 1
fi

echo "✓ Worktree created: $WORKTREE_PATH"
echo "✓ Branch: $WORKTREE_NAME"