test: add helm chart tgz file verification

fix test error

Author: andyzhangx

.github/workflows/darwin.yaml

@@ -10,7 +10,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.13
+          go-version: ^1.15
         id: go
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2

.github/workflows/ubuntu.yml renamed to .github/workflows/linux.yaml

@@ -12,7 +12,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: ^1.13
+        go-version: ^1.15
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/windows.yaml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go-versions: [1.13.x]
+        go-versions: [1.15.x]
         platform: [windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:

hack/verify-helm-chart.sh

@@ -78,3 +78,23 @@ validate_image "${expected_node_driver_registrar}" "${node_driver_registrar}"
 validate_image "${expected_blob_image}" "${blob_image}"
 
 echo "Images in deploy/ matches those in the latest helm chart."
+
+# verify whether latest chart config has changed
+for dir in charts/*
+do
+  if [ -d $dir ]; then
+    if [ -f $dir/*.tgz ]; then
+      tar -xvf $dir/*.tgz -C $dir/
+    fi
+  fi
+done
+
+diff=`git diff`
+if [[ -n "${diff}" ]]; then
+  echo "${diff}"
+  echo
+  echo "latest chart config has changed, pls run \"helm package charts/latest/blob-csi-driver -d charts/latest/\" to update tgz file"
+  exit 1
+fi
+
+echo "latest chart tgz file verified."