ci: update CI workflow to run TypeScript tests with new script

.github/workflows/ci.yaml

@@ -13,6 +13,10 @@ jobs:
     steps:
       - name: Check out code
         uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+      - name: Fetch base branch
+        run: git fetch origin ${{ github.base_ref }}
       - name: Set up Terraform
         uses: coder/coder/.github/actions/setup-tf@main
       - name: Set up Bun
@@ -27,7 +31,7 @@ jobs:
       - name: Install dependencies
         run: bun install
       - name: Run TypeScript tests
-        run: bun test
+        run: ./scripts/ts_test_auto.sh
       - name: Run Terraform tests
         run: ./scripts/terraform_test_all.sh
       - name: Run Terraform Validate

scripts/ts_test_auto.sh

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Auto-detect which TypeScript tests to run based on git diff
+# Falls back to running all tests if shared infrastructure changes
+#
+# This script only runs tests for changed modules. Documentation and template changes are ignored.
+
+SHARED_FILES=(
+  "test/"
+  "package.json"
+  "bun.lock"
+  "bunfig.toml"
+  "tsconfig.json"
+  ".github/workflows/ci.yaml"
+  "scripts/ts_test_auto.sh"
+)
+
+echo "==> Detecting changed files..."
+
+if [[ -n "${GITHUB_BASE_REF:-}" ]]; then
+  BASE_REF="origin/${GITHUB_BASE_REF}"
+  echo "Detected GitHub Actions PR, comparing against: $BASE_REF"
+else
+  BASE_REF="origin/main"
+  echo "Local development mode, comparing against: $BASE_REF"
+fi
+
+if ! CHANGED_FILES=$(git diff --name-only "${BASE_REF}...HEAD" 2> /dev/null); then
+  echo "⚠️  Could not detect changes (git diff failed)"
+  echo "==> Running all tests for safety"
+  exec bun test
+fi
+
+if [[ -z "$CHANGED_FILES" ]]; then
+  echo "✓ No files changed, skipping tests"
+  exit 0
+fi
+
+echo "Changed files:"
+echo "$CHANGED_FILES" | sed 's/^/  - /'
+echo ""
+
+for shared_file in "${SHARED_FILES[@]}"; do
+  if echo "$CHANGED_FILES" | grep -q "^${shared_file}"; then
+    echo "==> Shared infrastructure changed ($shared_file)"
+    echo "==> Running all tests for safety"
+    exec bun test
+  fi
+done
+
+MODULE_DIRS=()
+while IFS= read -r file; do
+  if [[ "$file" =~ \.(md|png|jpg|jpeg|svg)$ ]]; then
+    continue
+  fi
+
+  if [[ "$file" =~ ^registry/([^/]+)/modules/([^/]+)/ ]]; then
+    namespace="${BASH_REMATCH[1]}"
+    module="${BASH_REMATCH[2]}"
+    module_dir="registry/${namespace}/modules/${module}"
+
+    if [[ -f "$module_dir/main.test.ts" ]] && [[ ! " ${MODULE_DIRS[*]} " =~ " ${module_dir} " ]]; then
+      MODULE_DIRS+=("$module_dir")
+    fi
+  fi
+done <<< "$CHANGED_FILES"
+
+if [[ ${#MODULE_DIRS[@]} -eq 0 ]]; then
+  echo "✓ No TypeScript tests to run"
+  echo "  (documentation, templates, namespace files, or modules without tests)"
+  exit 0
+fi
+
+echo "==> Running TypeScript tests for ${#MODULE_DIRS[@]} changed module(s):"
+for dir in "${MODULE_DIRS[@]}"; do
+  echo "  - $dir"
+done
+echo ""
+
+exec bun test "${MODULE_DIRS[@]}"