Add script to speed up reviewing PRs adding a worktree. (#21748)

scripts/review.sh

@@ -0,0 +1,132 @@
+#!/bin/bash
+# scripts/review.sh
+# 
+# Usage: ./scripts/review.sh <pr#> [model]
+
+set -e
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 <pr#> [model]"
+    exit 1
+fi
+pr="$1"
+model="${2:-gemini-3.1-pro-preview}"
+REPO="google-gemini/gemini-cli"
+REVIEW_DIR="$HOME/git/review/gemini-cli"
+
+if [ ! -d "$REVIEW_DIR" ]; then
+    echo "ERROR: Directory $REVIEW_DIR does not exist."
+    echo ""
+    echo "Please create a new gemini-cli clone at that directory to use for reviews."
+    echo "Instructions:"
+    echo "  mkdir -p ~/git/review"
+    echo "  cd ~/git/review"
+    echo "  git clone https://github.com/google-gemini/gemini-cli.git"
+    exit 1
+fi
+
+# 1. Check if the PR exists before doing anything else
+echo "review: Validating PR $pr on $REPO..."
+if ! gh pr view "$pr" -R "$REPO" > /dev/null 2>&1; then
+    echo "ERROR: Could not find PR #$pr in $REPO."
+    echo "Are you sure $pr is a Pull Request number and not an Issue number?"
+    exit 1
+fi
+
+echo "review: Opening PR $pr in browser..."
+if [[ "$(uname)" == "Darwin" ]]; then
+    open "https://github.com/$REPO/pull/$pr" || true
+else
+    xdg-open "https://github.com/$REPO/pull/$pr" || true
+fi
+
+echo "review: Changing directory to $REVIEW_DIR"
+cd "$REVIEW_DIR" || exit 1
+
+# 2. Fetch latest main to ensure we have a clean starting point
+echo "review: Fetching latest from origin..."
+git fetch origin main
+
+# 3. Handle worktree creation
+WORKTREE_PATH="pr_$pr"
+if [ -d "$WORKTREE_PATH" ]; then
+    echo "review: Worktree directory $WORKTREE_PATH already exists."
+    # Check if it's actually a registered worktree
+    if git worktree list | grep -q "$WORKTREE_PATH"; then
+        echo "review: Reusing existing worktree..."
+    else
+        echo "review: Directory exists but is not a worktree. Cleaning up..."
+        rm -rf "$WORKTREE_PATH"
+    fi
+fi
+
+if [ ! -d "$WORKTREE_PATH" ]; then
+    echo "review: Adding new worktree at $WORKTREE_PATH..."
+    # Create a detached worktree from origin/main
+    git worktree add --detach "$WORKTREE_PATH" origin/main
+fi
+
+echo "review: Changing directory to $WORKTREE_PATH"
+cd "$WORKTREE_PATH" || exit 1
+
+# 4. Checkout the PR
+echo "review: Checking out PR $pr..."
+gh pr checkout "$pr" -f -R "$REPO"
+
+# 5. Clean and Build
+echo "review: Clearing possibly stale node_modules..."
+rm -rf node_modules 
+rm -rf packages/core/dist/
+rm -rf packages/cli/node_modules/
+rm -rf packages/core/node_modules/
+
+echo "review: Installing npm dependencies..."
+npm install
+
+echo "--- build ---"
+temp_dir_base="${TMPDIR:-/tmp}"
+build_log_file=$(mktemp "${temp_dir_base}/npm_build_log.XXXXXX") || {
+    echo "Attempting to create temporary file in current directory as a fallback." >&2
+    build_log_file=$(mktemp "./npm_build_log_fallback.XXXXXX")
+    if [ $? -ne 0 ] || [ -z "$build_log_file" ]; then
+        echo "ERROR: Critical - Failed to create any temporary build log file. Aborting." >&2
+        exit 1
+    fi
+}
+
+build_status=0
+build_command_to_run="FORCE_COLOR=1 CLICOLOR_FORCE=1 npm run build"
+
+echo "Running build. Output (with colors) will be shown below and saved to: $build_log_file"
+echo "Build command: $build_command_to_run"
+
+if [[ "$(uname)" == "Darwin" ]]; then
+    script -q "$build_log_file" /bin/sh -c "$build_command_to_run"
+    build_status=$?
+else
+    if script -q -e -c "$build_command_to_run" "$build_log_file"; then
+        build_status=0
+    else
+        build_status=$?
+    fi
+fi
+
+if [ $build_status -ne 0 ]; then
+    echo "ERROR: npm build failed with exit status $build_status." >&2
+    echo "Review output above. Full log (with color codes) was in $build_log_file." >&2
+    exit 1
+else
+    if grep -q -i -E "\berror\b|\bfailed\b|ERR!|FATAL|critical" "$build_log_file"; then
+        echo "ERROR: npm build completed with exit status 0, but suspicious error patterns were found in the build output." >&2
+        echo "Review output above. Full log (with color codes) was in $build_log_file." >&2
+        exit 1
+    fi
+    echo "npm build completed successfully (exit status 0, no critical error patterns found in log)."
+    rm -f "$build_log_file"
+fi
+
+echo "-- running ---"
+if ! npm start -- -m "$model" -i="/review-frontend $pr"; then
+    echo "ERROR: npm start failed. Please check its output for details." >&2
+    exit 1
+fi