chore: Add NPM duplicate dependency check to canaries (#11333)

Author: jimblanc

.circleci/config.yml

@@ -2512,7 +2512,10 @@ orbs:
               no_output_timeout: 2m
           - run-with-retry:
               label: Install AmplifyJS
-              command: npm i -S aws-amplify && npm i -g wait-on serve
+              command: |
+                npm i -S aws-amplify
+                npm i -g wait-on serve
+                ~/amplify-js/.circleci/duplicates-npm.sh
           - run:
               name: Call Amplify library in code
               command: |

.circleci/duplicates-npm.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# This script detects duplicated Amplify dependencies in the dependency graph (with NPM)
+duplicatedDependencies=$(
+  npm ls -all 2>/dev/null | \
+  grep -o -e '@\?aws-amplify[^ ]*' | \
+  sort | uniq | \
+  sed -E 's/^(@?[^@]+).*$/\1/g' | \
+  uniq -d | sort
+)
+
+if [ ! "$duplicatedDependencies" ]; then
+	echo "No duplicated Amplify dependencies detected."
+else
+	echo "Duplicated Amplify dependencies detected: $duplicatedDependencies"
+	false
+fi

package.json

@@ -9,7 +9,7 @@
 		"bootstrap": "lerna bootstrap",
 		"test": "lerna run test --stream",
 		"test:size": "lerna run test:size",
-		"test:duplicates": "./scripts/duplicates.sh",
+		"test:duplicates": "./scripts/duplicates-yarn.sh",
 		"cypress": "lerna run cypress",
 		"cypress:open": "lerna run cypress:open",
 		"coverage": "codecov || exit 0",

scripts/duplicates.sh scripts/duplicates-yarn.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# This script detects duplicated Amplify dependencies in the dependency graph
+# This script detects duplicated Amplify dependencies in the dependency graph (with Yarn)
 duplicatedDependencies=$(
 	yarn list --pattern amplify | 
 	grep -o -e '@\?aws-amplify[^ ]*' |