feat(language): add configurable extensions

.vscode/settings.json

@@ -1,9 +1,6 @@
 {
   "go.lintTool": "golangci-lint",
   "go.useLanguageServer": true,
-  "go.languageServerExperimentalFeatures": {
-    "diagnostics": false
-  },
   "go.lintFlags": ["--fast"],
   "go.testOnSave": true,
   "[go]": {

src/properties.go

@@ -127,6 +127,17 @@ func (p properties) getKeyValueMap(property Property, defaultValue map[string]st
 	return keyValues
 }
 
+func (p properties) getStringArray(property Property, defaultValue []string) []string {
+	val, found := p[property]
+	if !found {
+		return defaultValue
+	}
+
+	keyValues := parseStringArray(val)
+
+	return keyValues
+}
+
 func parseStringArray(param interface{}) []string {
 	switch v := param.(type) {
 	default:

src/segment_language.go

@@ -25,7 +25,8 @@ type cmd struct {
 	executable string
 	args       []string
 	regex      string
-	version    *version
+
+	version
 }
 
 func (c *cmd) parse(versionInfo string) error {
@@ -33,7 +34,7 @@ func (c *cmd) parse(versionInfo string) error {
 	if len(values) == 0 {
 		return errors.New("cannot parse version string")
 	}
-	c.version = &version{}
+
 	c.version.Full = values["version"]
 	c.version.Major = values["major"]
 	c.version.Minor = values["minor"]
@@ -98,6 +99,8 @@ const (
 	EnableVersionMismatch Property = "enable_version_mismatch"
 	// HomeEnabled displays the segment in the HOME folder or not
 	HomeEnabled Property = "home_enabled"
+	// LanguageExtensions the list of extensions to validate
+	LanguageExtensions Property = "extensions"
 )
 
 func (l *language) string() string {
@@ -151,6 +154,9 @@ func (l *language) string() string {
 }
 
 func (l *language) enabled() bool {
+	// override default extensions if needed
+	l.extensions = l.props.getStringArray(LanguageExtensions, l.extensions)
+
 	inHomeDir := func() bool {
 		return l.env.getcwd() == l.env.homeDir()
 	}

src/segment_node_test.go

@@ -31,11 +31,12 @@ func TestNodeMatchesVersionFile(t *testing.T) {
 	for _, tc := range cases {
 		env := new(MockedEnvironment)
 		env.On("getFileContent", ".nvmrc").Return(tc.RCVersion)
+
 		node := &node{
 			language: &language{
 				env: env,
 				activeCommand: &cmd{
-					version: &nodeVersion,
+					version: nodeVersion,
 				},
 			},
 		}