feat(helm): ignore by default all dotfiles in templates/

pkg/chartutil/load.go

@@ -208,6 +208,7 @@ func LoadDir(dir string) (*chart.Chart, error) {
 		}
 		rules = r
 	}
+	rules.AddDefaults()
 
 	files := []*afile{}
 	topdir += string(filepath.Separator)

pkg/ignore/rules.go

@@ -42,6 +42,13 @@ func Empty() *Rules {
 	return &Rules{patterns: []*pattern{}}
 }
 
+// AddDefaults adds default ignore patterns.
+//
+// Ignore all dotfiles in "templates/"
+func (r *Rules) AddDefaults() {
+	r.parseRule(`templates/.?*`)
+}
+
 // ParseFile parses a helmignore file and returns the *Rules.
 func ParseFile(file string) (*Rules, error) {
 	f, err := os.Open(file)

pkg/ignore/rules_test.go

@@ -63,7 +63,6 @@ func TestParseFail(t *testing.T) {
 			t.Errorf("Rule %q should have failed", fail)
 		}
 	}
-
 }
 
 func TestParseFile(t *testing.T) {
@@ -99,6 +98,7 @@ func TestIgnore(t *testing.T) {
 		{`cargo/*.*`, "cargo/a.txt", true},
 		{`cargo/*.txt`, "mast/a.txt", false},
 		{`ru[c-e]?er.txt`, "rudder.txt", true},
+		{`templates/.?*`, "templates/.dotfile", true},
 
 		// Directory tests
 		{`cargo/`, "cargo", true},
@@ -134,6 +134,15 @@ func TestIgnore(t *testing.T) {
 	}
 }
 
+func TestAddDefaults(t *testing.T) {
+	r := Rules{}
+	r.AddDefaults()
+
+	if len(r.patterns) != 1 {
+		t.Errorf("Expected 1 default patterns, got %d", len(r.patterns))
+	}
+}
+
 func parseString(str string) (*Rules, error) {
 	b := bytes.NewBuffer([]byte(str))
 	return Parse(b)