Try to detect language when document file path is set

Fixes #91

2 files changed, 26 insertions, 17 deletions

diff --git a/helix-core/src/indent.rs b/helix-core/src/indent.rs
index fc253f91..7ab810fd 100644
--- a/helix-core/src/indent.rs
+++ b/helix-core/src/indent.rs
@@ -251,22 +251,25 @@ where
             Configuration, IndentationConfiguration, Lang, LanguageConfiguration, Loader,
         };
         use once_cell::sync::OnceCell;
-        let loader = Loader::new(Configuration {
-            language: vec![LanguageConfiguration {
-                scope: "source.rust".to_string(),
-                file_types: vec!["rs".to_string()],
-                language_id: Lang::Rust,
-                highlight_config: OnceCell::new(),
-                //
-                roots: vec![],
-                language_server: None,
-                indent: Some(IndentationConfiguration {
-                    tab_width: 4,
-                    unit: String::from("    "),
-                }),
-                indent_query: OnceCell::new(),
-            }],
-        });
+        let loader = Loader::new(
+            Configuration {
+                language: vec![LanguageConfiguration {
+                    scope: "source.rust".to_string(),
+                    file_types: vec!["rs".to_string()],
+                    language_id: Lang::Rust,
+                    highlight_config: OnceCell::new(),
+                    //
+                    roots: vec![],
+                    language_server: None,
+                    indent: Some(IndentationConfiguration {
+                        tab_width: 4,
+                        unit: String::from("    "),
+                    }),
+                    indent_query: OnceCell::new(),
+                }],
+            },
+            Vec::new(),
+        );
 
         // set runtime path so we can find the queries
         let mut runtime = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index febbf821..ec95708b 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -166,13 +166,15 @@ pub struct Loader {
     // highlight_names ?
     language_configs: Vec<Arc<LanguageConfiguration>>,
     language_config_ids_by_file_type: HashMap<String, usize>, // Vec<usize>
+    scopes: Vec<String>,
 }
 
 impl Loader {
-    pub fn new(config: Configuration) -> Self {
+    pub fn new(config: Configuration, scopes: Vec<String>) -> Self {
         let mut loader = Self {
             language_configs: Vec::new(),
             language_config_ids_by_file_type: HashMap::new(),
+            scopes,
         };
 
         for config in config.language {
@@ -192,6 +194,10 @@ impl Loader {
         loader
     }
 
+    pub fn scopes(&self) -> &[String] {
+        &self.scopes
+    }
+
     pub fn language_config_for_file_name(&self, path: &Path) -> Option<Arc<LanguageConfiguration>> {
         // Find all the language configurations that match this file name
         // or a suffix of the file name.