fix issue 1093 (#1094)

pkg/policy/checker.go

@@ -37,7 +37,9 @@ func forbidEnvironmentsWithReleases(filePath string, content []byte) (bool, erro
 		if k == "environments" || k == "releases" || k == "---" {
 			if _, ok := resultKeys[k]; !ok {
 				result = append(result, k)
-				resultKeys[k] = nil
+				if k != "---" {
+					resultKeys[k] = nil
+				}
 			}
 		}
 	}

pkg/policy/checker_test.go

@@ -41,6 +41,14 @@ func TestForbidEnvironmentsWithReleases(t *testing.T) {
 			expectedErr: false,
 			isStrict:    false,
 		},
+		{
+			name:        "no error when has --- between releases and environments, and --- on top of helmfile.yaml.gotmpl",
+			filePath:    "helmfile.yaml.gotmpl",
+			content:     []byte("---\nenvironments:\n---\nreleases:\n"),
+			v1mode:      false,
+			expectedErr: false,
+			isStrict:    false,
+		},
 		{
 			name:        "error when both releases and environments",
 			filePath:    "helmfile.yaml.gotmpl",
@@ -50,8 +58,8 @@ func TestForbidEnvironmentsWithReleases(t *testing.T) {
 			isStrict:    false,
 		},
 		{
-			name:        "no error when both releases and environments for plain yaml on v1",
-			filePath:    "helmfile.yaml.gotmpl",
+			name:        "error when both releases and environments for plain yaml on v1",
+			filePath:    "helmfile.yaml",
 			content:     []byte("environments:\nreleases:\n"),
 			v1mode:      true,
 			expectedErr: true,