Add feature to filter diagnostics messages by its source

Author: 110y

doc/LanguageClient.txt

@@ -414,15 +414,22 @@ Maximum severity to show diagnostic messages.
 Default: "Hint"
 Valid options: "Error" | "Warning" | "Information" | "Hint"
 
-2.31 g:LanguageClient_echoProjectRoot  *g:LanguageClient_echoProjectRoot*
+2.31 g:LanguageClient_diagnosticsIgnoreSources  *g:LanguageClient_diagnosticsIgnoreSources*
+
+Does not show the diagnostics message which has the source specified by this
+options.
+
+Default: "[]"
+
+2.32 g:LanguageClient_echoProjectRoot  *g:LanguageClient_echoProjectRoot*
 
 Whether to echo messages in vim of the form: "Project root: /home/user/myproject" when
 the root of a project is detected using g:LanguageClient_rootMarkers.
 
 Default: 1 to display the messages
 Valid options: 1 | 0
 
-2.32 g:LanguageClient_semanticHighlightMaps   *g:LanguageClient_semanticHighlightMaps*
+2.33 g:LanguageClient_semanticHighlightMaps   *g:LanguageClient_semanticHighlightMaps*
 
 String to list/map map. Defines the mapping of semantic highlighting "scopes" to
 highlight groups. This depends on the LSP server supporting the proposed
@@ -523,14 +530,14 @@ Example configuration for eclipse.jdt.ls:
      highlight! JavaMemberVariable ctermfg=White cterm=italic guifg=White gui=italic
 
 
-2.33 g:LanguageClient_applyCompletionAdditionalTextEdits *g:LanguageClient_applyCompletionAdditionalTextEdits*
+2.34 g:LanguageClient_applyCompletionAdditionalTextEdits *g:LanguageClient_applyCompletionAdditionalTextEdits*
 
 Indicates whether completionItem additional text edits should be applied.
 
 Default: 1
 Valid options: 1 | 0
 
-2.34 g:LanguageClient_preferredMarkupKind *g:LanguageClient_preferredMarkupKind*
+2.35 g:LanguageClient_preferredMarkupKind *g:LanguageClient_preferredMarkupKind*
 
 Sets the preferred markup kind. This value is sent to the server and is
 normally used to decide whether to send plaintext or markdown in things like
@@ -562,14 +569,14 @@ This setting may have no effect of the server decides not to honour it.
 Default: v:null
 Valid options: Array<String>
 
-2.35 g:LanguageClient_floatingWindowStyle  *g:LanguageClient_floatingWindowStyle*
+2.36 g:LanguageClient_floatingWindowStyle  *g:LanguageClient_floatingWindowStyle*
 
 Style of opened Neovim floating window.
 
 Default: 'minimal'
 Valid options: 'minimal'
 
-2.36 g:LanguageClient_hideVirtualTextsOnInsert *g:LanguageClient_hideVirtualTextsOnInsert*
+2.37 g:LanguageClient_hideVirtualTextsOnInsert *g:LanguageClient_hideVirtualTextsOnInsert*
 
 Hides all virtual texts for the current buffer while editing in insert mode.
 

src/language_server_protocol.rs

@@ -160,6 +160,7 @@ impl LanguageClient {
         let (
             diagnostics_signs_max,
             diagnostics_max_severity,
+            diagnostics_ignore_sources,
             document_highlight_display,
             selection_ui_auto_open,
             use_virtual_text,
@@ -172,6 +173,7 @@ impl LanguageClient {
         ): (
             Option<usize>,
             String,
+            Vec<String>,
             Value,
             u8,
             UseVirtualText,
@@ -185,6 +187,7 @@ impl LanguageClient {
             [
                 "get(g:, 'LanguageClient_diagnosticsSignsMax', v:null)",
                 "get(g:, 'LanguageClient_diagnosticsMaxSeverity', 'Hint')",
+                "get(g:, 'LanguageClient_diagnosticsIgnoreSources', [])",
                 "get(g:, 'LanguageClient_documentHighlightDisplay', {})",
                 "!!s:GetVar('LanguageClient_selectionUI_autoOpen', 1)",
                 "s:useVirtualText()",
@@ -290,6 +293,7 @@ impl LanguageClient {
             )?;
             state.diagnostics_signs_max = diagnostics_signs_max;
             state.diagnostics_max_severity = diagnostics_max_severity;
+            state.diagnostics_ignore_sources = diagnostics_ignore_sources;
             state.document_highlight_display = serde_json::from_value(
                 serde_json::to_value(&state.document_highlight_display)?
                     .combine(&document_highlight_display),
@@ -2313,10 +2317,16 @@ impl LanguageClient {
         let filename = filename.canonicalize();
 
         let diagnostics_max_severity = self.get(|state| state.diagnostics_max_severity)?;
+        let ignore_sources = self.get(|state| state.diagnostics_ignore_sources.clone())?;
         let mut diagnostics = params
             .diagnostics
             .iter()
             .filter(|&diagnostic| {
+                if let Some(source) = &diagnostic.source {
+                    if ignore_sources.contains(source) {
+                        return false;
+                    }
+                }
                 diagnostic.severity.unwrap_or(DiagnosticSeverity::Hint) <= diagnostics_max_severity
             })
             .map(Clone::clone)

src/types.rs

@@ -192,6 +192,7 @@ pub struct State {
     pub diagnostics_display: HashMap<u64, DiagnosticsDisplay>,
     pub diagnostics_signs_max: Option<usize>,
     pub diagnostics_max_severity: DiagnosticSeverity,
+    pub diagnostics_ignore_sources: Vec<String>,
     pub document_highlight_display: HashMap<u64, DocumentHighlightDisplay>,
     pub window_log_message_level: MessageType,
     pub settings_path: Vec<String>,
@@ -272,6 +273,7 @@ impl State {
             diagnostics_display: DiagnosticsDisplay::default(),
             diagnostics_signs_max: None,
             diagnostics_max_severity: DiagnosticSeverity::Hint,
+            diagnostics_ignore_sources: vec![],
             document_highlight_display: DocumentHighlightDisplay::default(),
             window_log_message_level: MessageType::Warning,
             settings_path: vec![format!(".vim{}settings.json", std::path::MAIN_SEPARATOR)],