Add editor.diagnostics-symbol config option

helix-term/src/ui/statusline.rs

@@ -240,10 +240,12 @@ where
             counts
         });
 
+    let sym = &context.editor.config().diagnostics_symbol;
+
     if warnings > 0 {
         write(
             context,
-            "●".to_string(),
+            sym.to_string(),
             Some(context.editor.theme.get("warning")),
         );
         write(context, format!(" {} ", warnings), None);
@@ -252,7 +254,7 @@ where
     if errors > 0 {
         write(
             context,
-            "●".to_string(),
+            sym.to_string(),
             Some(context.editor.theme.get("error")),
         );
         write(context, format!(" {} ", errors), None);
@@ -277,6 +279,7 @@ where
                 }
                 counts
             });
+    let sym = &context.editor.config().diagnostics_symbol;
 
     if warnings > 0 || errors > 0 {
         write(context, " W ".into(), None);
@@ -285,7 +288,7 @@ where
     if warnings > 0 {
         write(
             context,
-            "●".to_string(),
+            sym.to_string(),
             Some(context.editor.theme.get("warning")),
         );
         write(context, format!(" {} ", warnings), None);
@@ -294,7 +297,7 @@ where
     if errors > 0 {
         write(
             context,
-            "●".to_string(),
+            sym.to_string(),
             Some(context.editor.theme.get("error")),
         );
         write(context, format!(" {} ", errors), None);

helix-view/src/editor.rs

@@ -345,6 +345,7 @@ pub struct Config {
     /// Display diagnostic below the line they occur.
     pub inline_diagnostics: InlineDiagnosticsConfig,
     pub end_of_line_diagnostics: DiagnosticFilter,
+    pub diagnostics_symbol: char,
 }
 
 #[derive(Debug, Clone, PartialEq, Deserialize, Serialize, Eq, PartialOrd, Ord)]
@@ -979,6 +980,7 @@ impl Default for Config {
             jump_label_alphabet: ('a'..='z').collect(),
             inline_diagnostics: InlineDiagnosticsConfig::default(),
             end_of_line_diagnostics: DiagnosticFilter::Disable,
+            diagnostics_symbol: '●',
         }
     }
 }

helix-view/src/gutter.rs

@@ -46,7 +46,7 @@ impl GutterType {
 }
 
 pub fn diagnostic<'doc>(
-    _editor: &'doc Editor,
+    editor: &'doc Editor,
     doc: &'doc Document,
     _view: &View,
     theme: &Theme,
@@ -57,6 +57,7 @@ pub fn diagnostic<'doc>(
     let info = theme.get("info");
     let hint = theme.get("hint");
     let diagnostics = &doc.diagnostics;
+    let sym = editor.config().diagnostics_symbol;
 
     Box::new(
         move |line: usize, _selected: bool, first_visual_line: bool, out: &mut String| {
@@ -74,7 +75,7 @@ pub fn diagnostic<'doc>(
                             .any(|ls| ls.id() == d.provider)
                 });
             diagnostics_on_line.max_by_key(|d| d.severity).map(|d| {
-                write!(out, "●").ok();
+                write!(out, "{}", sym).ok();
                 match d.severity {
                     Some(Severity::Error) => error,
                     Some(Severity::Warning) | None => warning,