feat(pkg/chart): support deprecated requirements.yaml

Signed-off-by: Adam Reese <adam@reese.io>

pkg/chart/loader/load.go

@@ -75,7 +75,9 @@ func LoadFiles(files []*BufferedFile) (*chart.Chart, error) {
 	for _, f := range files {
 		switch {
 		case f.Name == "Chart.yaml":
+			if c.Metadata == nil {
 				c.Metadata = new(chart.Metadata)
+			}
 			if err := yaml.Unmarshal(f.Data, c.Metadata); err != nil {
 				return c, errors.Wrap(err, "cannot load Chart.yaml")
 			}
@@ -98,6 +100,23 @@ func LoadFiles(files []*BufferedFile) (*chart.Chart, error) {
 			c.RawValues = f.Data
 		case f.Name == "values.schema.json":
 			c.Schema = f.Data
+
+		// Deprecated: requirements.yaml is deprecated use Chart.yaml.
+		// We will handle it for you because we are nice people
+		case f.Name == "requirements.yaml":
+			if c.Metadata == nil {
+				c.Metadata = new(chart.Metadata)
+			}
+			if err := yaml.Unmarshal(f.Data, c.Metadata); err != nil {
+				return c, errors.Wrap(err, "cannot load requirements.yaml")
+			}
+		// Deprecated: requirements.lock is deprecated use Chart.lock.
+		case f.Name == "requirements.lock":
+			c.Lock = new(chart.Lock)
+			if err := yaml.Unmarshal(f.Data, &c.Lock); err != nil {
+				return c, errors.Wrap(err, "cannot load requirements.lock")
+			}
+
 		case strings.HasPrefix(f.Name, "templates/"):
 			c.Templates = append(c.Templates, &chart.File{Name: f.Name, Data: f.Data})
 		case strings.HasPrefix(f.Name, "charts/"):

pkg/chart/loader/load_test.go

@@ -38,6 +38,19 @@ func TestLoadDir(t *testing.T) {
 	verifyDependenciesLock(t, c)
 }
 
+func TestLoadV1(t *testing.T) {
+	l, err := Loader("testdata/frobnitz.v1")
+	if err != nil {
+		t.Fatalf("Failed to load testdata: %s", err)
+	}
+	c, err := l.Load()
+	if err != nil {
+		t.Fatalf("Failed to load testdata: %s", err)
+	}
+	verifyDependencies(t, c)
+	verifyDependenciesLock(t, c)
+}
+
 func TestLoadFile(t *testing.T) {
 	l, err := Loader("testdata/frobnitz-1.2.3.tgz")
 	if err != nil {

pkg/chart/loader/testdata/frobnitz.v1/.helmignore

@@ -0,0 +1 @@
+ignore/

pkg/chart/loader/testdata/frobnitz.v1/Chart.lock

@@ -0,0 +1,8 @@
+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts
+digest: invalid

pkg/chart/loader/testdata/frobnitz.v1/Chart.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+name: frobnitz
+description: This is a frobnitz.
+version: "1.2.3"
+keywords:
+  - frobnitz
+  - sprocket
+  - dodad
+maintainers:
+  - name: The Helm Team
+    email: helm@example.com
+  - name: Someone Else
+    email: nobody@example.com
+sources:
+  - https://example.com/foo/bar
+home: http://example.com
+icon: https://example.com/64x64.png
+annotations:
+  extrakey: extravalue
+  anotherkey: anothervalue

pkg/chart/loader/testdata/frobnitz.v1/INSTALL.txt

@@ -0,0 +1 @@
+This is an install document. The client may display this.

pkg/chart/loader/testdata/frobnitz.v1/LICENSE

@@ -0,0 +1 @@
+LICENSE placeholder.

pkg/chart/loader/testdata/frobnitz.v1/README.md

@@ -0,0 +1,11 @@
+# Frobnitz
+
+This is an example chart.
+
+## Usage
+
+This is an example. It has no usage.
+
+## Development
+
+For developer info, see the top-level repository.

pkg/chart/loader/testdata/frobnitz.v1/charts/_ignore_me

@@ -0,0 +1 @@
+This should be ignored by the loader, but may be included in a chart.

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+name: alpine
+description: Deploy a basic Alpine Linux pod
+version: 0.1.0
+home: https://helm.sh/helm

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/README.md

@@ -0,0 +1,9 @@
+This example was generated using the command `helm create alpine`.
+
+The `templates/` directory contains a very simple pod resource with a
+couple of parameters.
+
+The `values.toml` file contains the default values for the
+`alpine-pod.yaml` template.
+
+You can install this example using `helm install docs/examples/alpine`.

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/charts/mast1/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+name: mast1
+description: A Helm chart for Kubernetes
+version: 0.1.0
+home: ""

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/charts/mast1/values.yaml

@@ -0,0 +1,4 @@
+# Default values for mast1.
+# This is a YAML-formatted file.
+# Declare name/value pairs to be passed into your templates.
+# name = "value"

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/templates/alpine-pod.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: {{.Release.Name}}-{{.Chart.Name}}
+  labels:
+    app.kubernetes.io/managed-by: {{.Release.Service}}
+    app.kubernetes.io/name: {{.Chart.Name}}
+    helm.sh/chart: "{{.Chart.Name}}-{{.Chart.Version}}"
+spec:
+  restartPolicy: {{default "Never" .restart_policy}}
+  containers:
+  - name: waiter
+    image: "alpine:3.9"
+    command: ["/bin/sleep","9000"]

pkg/chart/loader/testdata/frobnitz.v1/charts/alpine/values.yaml

@@ -0,0 +1,2 @@
+# The pod name
+name: "my-alpine"

pkg/chart/loader/testdata/frobnitz.v1/docs/README.md

@@ -0,0 +1 @@
+This is a placeholder for documentation.

pkg/chart/loader/testdata/frobnitz.v1/icon.svg

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg"
+    xmlns:xlink="http://www.w3.org/1999/xlink"
+    version="1.0" width="256" height="256" id="test">
+  <desc>Example icon</desc>
+  <rect id="first" x="2" y="2" width="40" height="60" fill="navy"/>
+  <rect id="second" x="15" y="4" width="40" height="60" fill="red"/>
+</svg>

pkg/chart/loader/testdata/frobnitz.v1/requirements.yaml

@@ -0,0 +1,7 @@
+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts

pkg/chart/loader/testdata/frobnitz.v1/templates/template.tpl

@@ -0,0 +1 @@
+Hello {{.Name | default "world"}}

pkg/chart/loader/testdata/frobnitz.v1/values.yaml

@@ -0,0 +1,6 @@
+# A values file contains configuration.
+
+name: "Some Name"
+
+section:
+  name: "Name in a section"