Replace yarn with npm

.github/workflows/callable-local-e2e-webpack-test.yml

@@ -23,14 +23,15 @@ jobs:
           E2E_ENV: ${{ '{}' }}
         run: |
           if [ -z “” ]; then
-            ../amplify-data/scripts/retry-yarn-script.sh -s \
+            ../amplify-data/scripts/retry-npm-script.sh -s \
             "ci:test-webpack \
              webpack \
             webpack \
             chrome \
             dev \
             cli \
             --env $(echo $E2E_ENV | jq -r 'tostring')" \
+            -n 3
           else
             echo "Skipping specialized yarn script execution in the dev environment."
           fi

scripts/retry-npm-script.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# flags:
+# -s = script name
+# -n = how many times to retry
+# -r (optional) = run git reset in between retries
+
+# usage example: 
+# ./retry-command.sh -s lint -n 5
+# ./retry-command.sh -s publish:local -n 3 -r true
+
+while getopts s:n:r: option
+do
+    case "${option}"
+    in
+        s) SCRIPT=${OPTARG};;
+        n) N=${OPTARG};;
+        r) GIT_RESET=${OPTARG};;
+    esac
+done
+
+# initialize counter
+n=0
+# loop until n > first param
+until [ "$n" -gt $N ]
+do
+    # $1 is the argument passed in, e.g. publish:local
+    # if the publish command succeeds, `break` exits the loop
+    npm run $SCRIPT && break
+
+    if [[ $GIT_RESET ]]
+    then
+    # reset git HEAD (remove the package.json changes made by lerna)
+    echo "Resetting git HEAD"
+        git reset --hard
+    fi
+
+    if [ "$n" -eq $N ]; 
+    then
+        echo "Returning error"
+        exit 1
+    fi
+
+    # increment counter
+    n=$((n+1))
+
+    # wait 5 seconds
+    sleep 5
+    echo "Retry $n of $N"
+done