refactor: share language IDs with indentation configuration

src/syntax.rs

@@ -9,12 +9,16 @@ use tree_sitter::{
 mod languages;
 use languages::LanguageSpec;
 
+pub(crate) const RUST_ID: &str = "rust";
+pub(crate) const RUBY_ID: &str = "ruby";
+pub(crate) const PYTHON_ID: &str = "python";
+
 pub(crate) fn is_markdown_path(path: &Path) -> bool {
     languages::detect(Some(path), None).is_some_and(|syntax| syntax.name == "Markdown")
 }
 
-pub(crate) fn language_name(path: Option<&Path>, first_line: Option<&str>) -> Option<&'static str> {
-    languages::detect(path, first_line).map(|syntax| syntax.name)
+pub(crate) fn language_id(path: Option<&Path>, first_line: Option<&str>) -> Option<&'static str> {
+    languages::detect(path, first_line).map(|syntax| syntax.id)
 }
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
@@ -2120,6 +2124,7 @@ mod tests {
                 "((identifier) @function (#unsupported? @function))",
             ]
             .map(|query| LanguageSpec {
+                id: language.id,
                 name: "invalid test grammar query",
                 language: language.language.clone(),
                 highlights: query,