more resilient count script

Author: ruyadorno

scripts/package-count.sh

@@ -31,13 +31,23 @@ infer_package_manager() {
   fi
 }
 
-BENCH_PACKAGE_COUNT=$(
-  find node_modules -name package.json -type f \
-  | grep -E 'node_modules/([a-zA-Z0-9_-]+)/package\.json$|node_modules/@[a-zA-Z0-9_-]+/[a-zA-Z0-9_-]+/package\.json$' \
-  | sort -u \
-  | wc -l \
-  | xargs
-) || echo "0"
+# If the node_modules directory exists, count the number of packages
+if [ -d "node_modules" ]; then
+  BENCH_PACKAGE_COUNT=$(
+    find node_modules -name package.json -type f \
+    | grep -E 'node_modules/([a-zA-Z0-9_-]+)/package\.json$|node_modules/@[a-zA-Z0-9_-]+/[a-zA-Z0-9_-]+/package\.json$' \
+    | sort -u \
+    | wc -l \
+    | xargs
+  )
+else
+  BENCH_PACKAGE_COUNT="0"
+fi
+
+# If the package count is not set, set it to 0
+if [ -z "${BENCH_PACKAGE_COUNT:-}" ]; then
+  BENCH_PACKAGE_COUNT="0"
+fi
 
 BENCH_PACKAGE_MANAGER=$(
   infer_package_manager