Include lines functions

pkg/chartutil/files.go

@@ -147,8 +147,14 @@ func (f Files) AsSecrets() string {
 	return ToYaml(m)
 }
 
-// Lines returns
-func (f Files) Lines(string path) []string {
+// Lines returns each line of a named file (split by "\n") as a slice, so it can
+// be ranged over in your templates.
+//
+// This is designed to be called from a template.
+//
+// {{ range .Files.Lines "foo/bar.html" }}
+// {{ . }}{{ end }}
+func (f Files) Lines(path string) []string {
 	if f == nil || f[path] == nil {
 		return []string{}
 	}

pkg/chartutil/files_test.go

@@ -29,6 +29,7 @@ var cases = []struct {
 	{"ship/stowaway.txt", "Legatt"},
 	{"story/name.txt", "The Secret Sharer"},
 	{"story/author.txt", "Joseph Conrad"},
+	{"multiline/test.txt", "bar\nfoo"},
 }
 
 func getTestFiles() []*any.Any {
@@ -86,6 +87,17 @@ func TestToSecret(t *testing.T) {
 	as.Equal("captain.txt: VGhlIENhcHRhaW4=\nstowaway.txt: TGVnYXR0\n", out)
 }
 
+func TestLines(t *testing.T) {
+	as := assert.New(t)
+
+	f := NewFiles(getTestFiles())
+
+	out := f.Lines("multiline/test.txt")
+	as.Len(out, 2)
+
+	as.Equal("bar", out[0])
+}
+
 func TestToYaml(t *testing.T) {
 	expect := "foo: bar\n"
 	v := struct {