Add a script to make checking out a PR locally easier

scripts/pr-checkout.sh

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+# pr-checkout.sh
+# A script to automatically check out GitHub PR branches locally
+# Usage: pr-checkout.sh <PR_URL or PR_NUMBER>
+
+set -e
+
+# Function to display usage information
+usage() {
+  echo "Usage: pr-checkout.sh <PR_URL or PR_NUMBER>"
+  echo "Examples:"
+  echo "  pr-checkout.sh https://github.com/RooVetGit/Roo-Code/pull/3029"
+  echo "  pr-checkout.sh 3029"
+  exit 1
+}
+
+# Function to extract PR number from input
+extract_pr_number() {
+  local input="$1"
+  local pr_number=""
+  
+  # Check if input is a URL or just a number
+  if [[ "$input" =~ github\.com/([^/]+/[^/]+)/pull/([0-9]+) ]]; then
+    # Extract repo and PR number from URL
+    REPO_FROM_URL="${BASH_REMATCH[1]}"
+    pr_number="${BASH_REMATCH[2]}"
+    echo "Detected repo from URL: $REPO_FROM_URL"
+  elif [[ "$input" =~ /pull/([0-9]+) ]]; then
+    # Extract PR number from URL
+    pr_number="${BASH_REMATCH[1]}"
+  elif [[ "$input" =~ ^[0-9]+$ ]]; then
+    # Input is already a PR number
+    pr_number="$input"
+  else
+    echo "Error: Invalid PR input. Please provide a PR URL or PR number."
+    usage
+  fi
+  
+  echo "$pr_number"
+}
+
+# Validate input
+if [ $# -ne 1 ]; then
+  echo "Error: Missing PR URL or number."
+  usage
+fi
+
+PR_INPUT="$1"
+PR_NUMBER=$(extract_pr_number "$PR_INPUT")
+
+if [ -z "$PR_NUMBER" ]; then
+  echo "Error: Could not extract PR number."
+  exit 1
+fi
+
+echo "Fetching information for PR #$PR_NUMBER..."
+
+# Get PR details using GitHub CLI
+if ! PR_JSON=$(gh pr view "$PR_NUMBER" --json headRepository,headRepositoryOwner,headRefName,url 2>/dev/null); then
+  echo "Error: Failed to fetch PR information. Make sure:"
+  echo "  - The PR exists and you have access to it"
+  echo "  - GitHub CLI (gh) is installed and authenticated"
+  echo "  - You're running this from within a git repository"
+  echo ""
+  echo "For debugging, try: gh pr view $PR_NUMBER --json headRepository,headRepositoryOwner,headRefName,url"
+  exit 1
+fi
+
+# Extract information
+PR_AUTHOR=$(echo "$PR_JSON" | jq -r '.headRepositoryOwner.login')
+PR_BRANCH=$(echo "$PR_JSON" | jq -r '.headRefName')
+FORK_REPO=$(echo "$PR_JSON" | jq -r '.headRepository.name')
+PR_URL=$(echo "$PR_JSON" | jq -r '.url')
+
+# Use the fork repository directly
+BASE_REPO="$FORK_REPO"
+
+if [ -z "$PR_AUTHOR" ] || [ -z "$PR_BRANCH" ] || [ "$PR_AUTHOR" = "null" ] || [ "$PR_BRANCH" = "null" ]; then
+  echo "Error: Could not extract required information from PR."
+  echo "Debug information:"
+  echo "$PR_JSON" | jq '.'
+  exit 1
+fi
+
+echo "PR Information:"
+echo "  Author: $PR_AUTHOR"
+echo "  Branch: $PR_BRANCH"
+echo "  Base Repository: $BASE_REPO"
+echo "  Fork Repository: $FORK_REPO"
+
+# Check if remote already exists
+if git remote | grep -q "^$PR_AUTHOR$"; then
+  echo "Remote '$PR_AUTHOR' already exists. Updating URL..."
+  git remote set-url "$PR_AUTHOR" "git@github.com:$PR_AUTHOR/$BASE_REPO.git"
+else
+  echo "Adding remote for $PR_AUTHOR..."
+  git remote add "$PR_AUTHOR" "git@github.com:$PR_AUTHOR/$BASE_REPO.git"
+fi
+
+# Fetch from the remote
+echo "Fetching from $PR_AUTHOR..."
+git fetch "$PR_AUTHOR"
+
+# Check if local branch with same name exists
+if git show-ref --verify --quiet "refs/heads/$PR_BRANCH"; then
+  echo "Warning: Local branch '$PR_BRANCH' already exists."
+  read -p "Do you want to overwrite it? (y/n): " OVERWRITE
+  if [[ "$OVERWRITE" =~ ^[Yy]$ ]]; then
+    git checkout -B "$PR_BRANCH" "$PR_AUTHOR/$PR_BRANCH"
+  else
+    echo "Operation canceled."
+    exit 0
+  fi
+else
+  # Checkout new branch tracking the PR branch
+  echo "Checking out branch '$PR_BRANCH'..."
+  git checkout -b "$PR_BRANCH" "$PR_AUTHOR/$PR_BRANCH"
+fi
+
+echo ""
+echo "✅ Successfully checked out PR #$PR_NUMBER"
+echo "   Branch: $PR_BRANCH"
+echo "   Remote: $PR_AUTHOR"