feat(helmfile): Parse multidoc yaml (#9113)

lib/manager/helmfile/__fixtures__/multidoc.yaml

@@ -0,0 +1,62 @@
+environments:
+  templated-environment: &templated-environment
+    values:
+      - ./environment/_shared/env.yaml
+      - ./environment/{{ .Environment.Name }}/env.yaml
+  beta:
+    <<: *templated-environment
+  support:
+    <<: *templated-environment
+---
+
+helmDefaults:
+# {{- if eq false (hasKey .Values "noKubeConf") }}
+  kubeContext: "{{ .Values.global.kube_context | getOrNil .Environment.Name | default .Environment.Name }}"
+# {{- end }}
+
+---
+
+repositories:
+- name: stable
+  url: https://charts.helm.sh/stable/
+- name: incubator
+  url: https://charts.helm.sh/incubator/
+- name: bitnami
+  url: https://charts.bitnami.com/bitnami
+- name: prometheus-community
+  url: https://prometheus-community.github.io/helm-charts
+
+templates:
+  external-chart: &external-chart
+    missingFileHandler: Debug
+    installedTemplate: '{{`{{ .Values | getOrNil .Release.Name | getOrNil "enabled" | default false }}`}}'
+    namespace: '{{`{{ .Values | getOrNil .Release.Name | getOrNil "namespace" | default "default" }}`}}'
+    version: '{{`{{ .Values | getOrNil .Release.Name | getOrNil "version" | default "*" }}`}}'
+    values:
+      - "./environment/_shared/{{`{{ .Release.Name }}`}}.yaml"
+      - "./environment/_shared/{{`{{ .Release.Name }}`}}.yaml.gotmpl"
+      - "./environment/{{`{{ .Environment.Name }}`}}/{{`{{ .Release.Name }}`}}.yaml"
+      - "./environment/{{`{{ .Environment.Name }}`}}/{{`{{ .Release.Name }}`}}.yaml.gotmpl"
+    secrets:
+      # {{- if eq false (hasKey .Values "noSecrets") }}
+      - "./environment/{{`{{ .Environment.Name }}`}}/{{`{{ .Release.Name }}`}}-secrets.yaml"
+      # {{- end }}
+
+releases:
+- name: manifests
+  chart: "./environment/{{`{{ .Environment.Name }}`}}/static"
+  installedTemplate: '{{`{{ .Values | getOrNil .Release.Name | getOrNil "enabled" | default false  }}`}}'
+
+- name: rabbitmq
+  <<: *external-chart
+  chart: bitnami/rabbitmq
+  needs:
+    - manifests
+  version: 7.4.3
+
+- name: prometheus-operator
+  <<: *external-chart
+  chart: prometheus-community/kube-prometheus-stack
+  needs:
+    - manifests
+  version: 13.7.2

lib/manager/helmfile/__snapshots__/extract.spec.ts.snap

@@ -1,5 +1,31 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`lib/manager/helmfile/extract extractPackageFile() parses multidoc yaml 1`] = `
+Object {
+  "datasource": "helm",
+  "deps": Array [
+    Object {
+      "depName": "./environment/{{\`{{ .Environment.Name }}\`}}/static",
+      "skipReason": "local-chart",
+    },
+    Object {
+      "currentValue": "7.4.3",
+      "depName": "rabbitmq",
+      "registryUrls": Array [
+        "https://charts.bitnami.com/bitnami",
+      ],
+    },
+    Object {
+      "currentValue": "13.7.2",
+      "depName": "kube-prometheus-stack",
+      "registryUrls": Array [
+        "https://prometheus-community.github.io/helm-charts",
+      ],
+    },
+  ],
+}
+`;
+
 exports[`lib/manager/helmfile/extract extractPackageFile() skip chart that does not have specified version 1`] = `
 Object {
   "datasource": "helm",

lib/manager/helmfile/extract.spec.ts

@@ -1,5 +1,10 @@
+import { readFileSync } from 'fs';
 import { extractPackageFile } from './extract';
 
+const multidocYaml = readFileSync(
+  'lib/manager/helmfile/__fixtures__/multidoc.yaml',
+  'utf8'
+);
 describe('lib/manager/helmfile/extract', () => {
   describe('extractPackageFile()', () => {
     beforeEach(() => {
@@ -167,5 +172,16 @@ describe('lib/manager/helmfile/extract', () => {
       expect(result).toMatchSnapshot();
       expect(result.deps.every((dep) => dep.skipReason)).toBeTruthy();
     });
+
+    it('parses multidoc yaml', () => {
+      const fileName = 'helmfile.yaml';
+      const result = extractPackageFile(multidocYaml, fileName, {
+        aliases: {
+          stable: 'https://charts.helm.sh/stable',
+        },
+      });
+      expect(result).not.toBeNull();
+      expect(result).toMatchSnapshot();
+    });
   });
 });

lib/manager/helmfile/extract.ts

@@ -35,8 +35,7 @@ export function extractPackageFile(
   }
   for (const doc of docs) {
     if (!(doc && is.array(doc.releases))) {
-      logger.debug({ fileName }, 'helmfile.yaml has no releases');
-      return null;
+      continue; // eslint-disable-line no-continue
     }
 
     if (doc.repositories) {
@@ -94,5 +93,10 @@ export function extractPackageFile(
     });
   }
 
+  if (!deps.length) {
+    logger.debug({ fileName }, 'helmfile.yaml has no releases');
+    return null;
+  }
+
   return { deps, datasource: datasourceHelm.id } as PackageFile;
 }