Improve early-detection of empty template

Previous empty template detection pattern matched only against templates
resolved to empty-or-whitespace-only files. This change makes it handle
other case of empty yaml correctly, namely, yaml containing comments
only.

Issue-ID: MULTICLOUD-1252
Signed-off-by: Konrad Bańka <k.banka@samsung.com>
Change-Id: I9132e167ec607c8a4a4ca5584141ed043c6ddd4f

3 files changed, 49 insertions, 0 deletions

diff --git a/src/k8splugin/mock_files/mock_charts/testchart3/templates/always-empty.yaml b/src/k8splugin/mock_files/mock_charts/testchart3/templates/always-empty.yaml
new file mode 100644
index 00000000..121130fc
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_charts/testchart3/templates/always-empty.yaml
@@ -0,0 +1,9 @@
+---
+{{ if eq 0 1 }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: dummy
+data:
+  key1: value1
+{{ end }}
diff --git a/src/k8splugin/mock_files/mock_charts/testchart3/templates/multi.yaml b/src/k8splugin/mock_files/mock_charts/testchart3/templates/multi.yaml
new file mode 100644
index 00000000..0539cfb4
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_charts/testchart3/templates/multi.yaml
@@ -0,0 +1,34 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: dummy
+data:
+  key1: value1
+---
+{{ if .Values.goingEmpty }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dummy
+spec:
+  template:
+    metadata:
+      labels:
+        app: dummy
+    spec:
+      container:
+      - name: dummy
+        image: dummy
+{{ end }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: dummy
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+  selector:
+    app: dummy
diff --git a/src/k8splugin/mock_files/mock_charts/testchart3/templates/only-comment.yaml b/src/k8splugin/mock_files/mock_charts/testchart3/templates/only-comment.yaml
new file mode 100644
index 00000000..aaacc787
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_charts/testchart3/templates/only-comment.yaml
@@ -0,0 +1,6 @@
+#not so empty?
+#Copyright or something similiar
+#Some license info
+{{/*
+  empty
+*/}}