.git__hooks__post_checkout

#!/bin/bash

# Git post-checkout hook to automatically copy environment files to new worktrees
# This hook runs after git checkout, git switch, and git worktree add

# CONFIGURATION: Modify these lists for your project
# Files to symlink (relative to repo root)
SYMLINK_FILES=(
    ".env"
    ".env.test"
)

# Files/directories to copy (relative to repo root)
COPY_FILES=(
    "tmp/tunnel"
    "tmp/cloudflared-config.yml"
)

# ============================================================================

prev_head="$1"
new_head="$2"
branch_checkout="$3"

# Check if this is a worktree creation (previous HEAD is null)
if [[ "$prev_head" == "0000000000000000000000000000000000000000" ]] && [[ "$branch_checkout" == "1" ]]; then
    echo "🔧 New worktree detected - setting up environment files..."
    
    # Get the main repository path
    main_repo_path="$(git rev-parse --git-common-dir)/.."
    main_repo_path="$(cd "$main_repo_path" && pwd)"
    
    # Get current worktree path
    current_path="$(pwd)"
    
    echo "📁 Copying from: $main_repo_path"
    echo "📁 Copying to: $current_path"
    
    # Create necessary directories from COPY_FILES
    while IFS= read -r dir; do
        if [[ ! -d "$current_path/$dir" ]]; then
            mkdir -p "$current_path/$dir"
            echo "📁 Created $dir"
        fi
    done < <(printf '%s\n' "${COPY_FILES[@]}" | xargs -I {} dirname {} | sort -u)
    
    # Symlink files
    for file in "${SYMLINK_FILES[@]}"; do
        if [[ -f "$main_repo_path/$file" ]]; then
            ln -sf "$main_repo_path/$file" "$current_path/$file"
            echo "✅ Symlinked $file"
        else
            echo "⚠️  $file not found in main repository"
        fi
    done
    
    # Copy files
    for file in "${COPY_FILES[@]}"; do
        source_file="$main_repo_path/$file"
        target_file="$current_path/$file"
        
        if [[ -f "$source_file" ]]; then
            mkdir -p "$(dirname "$target_file")"
            cp "$source_file" "$target_file"
            echo "✅ Copied $file"
        else
            echo "⚠️  $file not found in main repository"
        fi
    done
    
    echo "🎉 Environment setup complete for new worktree!"
fi