Merge pull request #3155 from github/mbg/node/no-install-in-actions

Don't run `npm install` when in an Actions workflow

Author: mbg

scripts/check-node-modules.sh

@@ -1,7 +1,17 @@
 #!/bin/bash
+
 set -e
 
+# Check if running in GitHub Actions
+if [ "$GITHUB_ACTIONS" = "true" ]; then
+  echo "Running in a GitHub Actions workflow; not running 'npm install'"
+  exit 0
+fi
+
 # Check if npm install is likely needed before proceeding
 if [ ! -d node_modules ] || [ package-lock.json -nt node_modules/.package-lock.json ]; then
+  echo "Running 'npm install' because 'node_modules/.package-lock.json' appears to be outdated..."
   npm install
+else
+  echo "Skipping 'npm install' because 'node_modules/.package-lock.json' appears to be up-to-date."
 fi