Lean onto default implementation of configs

crates/rust-analyzer/src/config.rs

@@ -38,12 +38,12 @@ pub struct Config {
 
 #[derive(Debug, Clone)]
 pub struct FilesConfig {
-    watcher: FilesWatcher,
-    exclude: Vec<String>,
+    pub watcher: FilesWatcher,
+    pub exclude: Vec<String>,
 }
 
 #[derive(Debug, Clone)]
-enum FilesWatcher {
+pub enum FilesWatcher {
     Client,
     Notify,
 }

crates/rust-analyzer/src/main_loop.rs

@@ -30,7 +30,7 @@
 use threadpool::ThreadPool;
 
 use crate::{
-    config::Config,
+    config::{Config, FilesWatcher},
     diagnostics::DiagnosticTask,
     main_loop::{
         pending_requests::{PendingRequest, PendingRequests},
@@ -40,7 +40,6 @@
     world::{WorldSnapshot, WorldState},
     Result,
 };
-use req::ConfigurationParams;
 
 #[derive(Debug)]
 pub struct LspError {
@@ -122,12 +121,13 @@ pub fn main_loop(ws_roots: Vec<PathBuf>, config: Config, connection: Connection)
         };
 
         let globs = config
-            .exclude_globs
+            .files
+            .exclude
             .iter()
             .map(|glob| crate::vfs_glob::Glob::new(glob))
             .collect::<std::result::Result<Vec<_>, _>>()?;
 
-        if config.use_client_watching {
+        if let FilesWatcher::Client = config.files.watcher {
             let registration_options = req::DidChangeWatchedFilesRegistrationOptions {
                 watchers: workspaces
                     .iter()
@@ -153,7 +153,7 @@ pub fn main_loop(ws_roots: Vec<PathBuf>, config: Config, connection: Connection)
             workspaces,
             config.lru_capacity,
             &globs,
-            Watch(!config.use_client_watching),
+            Watch(matches!(config.files.watcher, FilesWatcher::Notify)),
             config,
         )
     };
@@ -607,7 +607,12 @@ fn on_notification(
             let request_id = loop_state.next_request_id();
             let request = request_new::<req::WorkspaceConfiguration>(
                 request_id.clone(),
-                ConfigurationParams::default(),
+                req::ConfigurationParams {
+                    items: vec![req::ConfigurationItem {
+                        scope_uri: None,
+                        section: Some("rust-analyzer".to_string()),
+                    }],
+                },
             );
             msg_sender.send(request.into())?;
             loop_state.configuration_request_id = Some(request_id);

crates/rust-analyzer/src/req.rs

@@ -6,8 +6,8 @@
 
 pub use lsp_types::{
     notification::*, request::*, ApplyWorkspaceEditParams, CodeActionParams, CodeLens,
-    CodeLensParams, CompletionParams, CompletionResponse, ConfigurationParams, DiagnosticTag,
-    DidChangeConfigurationParams, DidChangeWatchedFilesParams,
+    CodeLensParams, CompletionParams, CompletionResponse, ConfigurationItem, ConfigurationParams,
+    DiagnosticTag, DidChangeConfigurationParams, DidChangeWatchedFilesParams,
     DidChangeWatchedFilesRegistrationOptions, DocumentOnTypeFormattingParams, DocumentSymbolParams,
     DocumentSymbolResponse, FileSystemWatcher, Hover, InitializeResult, MessageType,
     PartialResultParams, ProgressParams, ProgressParamsValue, ProgressToken,

editors/code/package.json

@@ -217,7 +217,6 @@
                     "type": "boolean",
                     "markdownDescription": "Whether to show `can't find Cargo.toml` error message"
                 },
-
                 "rust-analyzer.cargo.noDefaultFeatures": {
                     "type": "boolean",
                     "default": false,
@@ -272,7 +271,6 @@
                     "default": true,
                     "markdownDescription": "Check all targets and tests (will be passed as `--all-targets`)"
                 },
-
                 "rust-analyzer.inlayHints.typeHints": {
                     "type": "boolean",
                     "default": true,
@@ -298,7 +296,6 @@
                     "exclusiveMinimum": true,
                     "description": "Maximum length for inlay hints"
                 },
-
                 "rust-analyzer.completion.addCallParenthesis": {
                     "type": "boolean",
                     "default": true,
@@ -318,7 +315,6 @@
                     "type": "boolean",
                     "description": "Show function name and docs in parameter hints"
                 },
-
                 "rust-analyzer.highlighting.semanticTokens": {
                     "type": "boolean",
                     "default": false,
@@ -370,7 +366,7 @@
                     "description": "Enable logging of VS Code extensions itself",
                     "type": "boolean",
                     "default": false
-                },
+                }
             }
         },
         "problemPatterns": [

editors/code/src/client.ts

@@ -5,30 +5,6 @@ import { Config } from './config';
 import { CallHierarchyFeature } from 'vscode-languageclient/lib/callHierarchy.proposed';
 import { SemanticTokensFeature, DocumentSemanticsTokensSignature } from 'vscode-languageclient/lib/semanticTokens.proposed';
 
-export function configToServerOptions(config: Config) {
-    return {
-        lruCapacity: config.lruCapacity,
-
-        inlayHintsType: config.inlayHints.typeHints,
-        inlayHintsParameter: config.inlayHints.parameterHints,
-        inlayHintsChaining: config.inlayHints.chainingHints,
-        inlayHintsMaxLength: config.inlayHints.maxLength,
-
-        cargoWatchEnable: config.cargoWatchOptions.enable,
-        cargoWatchArgs: config.cargoWatchOptions.arguments,
-        cargoWatchCommand: config.cargoWatchOptions.command,
-        cargoWatchAllTargets: config.cargoWatchOptions.allTargets,
-
-        excludeGlobs: config.excludeGlobs,
-        useClientWatching: config.useClientWatching,
-        featureFlags: config.featureFlags,
-        withSysroot: config.withSysroot,
-        cargoFeatures: config.cargoFeatures,
-        rustfmtArgs: config.rustfmtArgs,
-        vscodeLldb: vscode.extensions.getExtension("vadimcn.vscode-lldb") != null,
-    };
-}
-
 export async function createClient(config: Config, serverPath: string, cwd: string): Promise<lc.LanguageClient> {
     // '.' Is the fallback if no folder is open
     // TODO?: Workspace folders support Uri's (eg: file://test.txt).
@@ -48,7 +24,7 @@ export async function createClient(config: Config, serverPath: string, cwd: stri
 
     const clientOptions: lc.LanguageClientOptions = {
         documentSelector: [{ scheme: 'file', language: 'rust' }],
-        initializationOptions: configToServerOptions(config),
+        initializationOptions: vscode.workspace.getConfiguration("rust-analyzer"),
         traceOutputChannel,
         middleware: {
             // Workaround for https://github.com/microsoft/vscode-languageserver-node/issues/576

editors/code/src/config.ts

@@ -11,9 +11,8 @@ export class Config {
     private readonly rootSection = "rust-analyzer";
     private readonly requiresReloadOpts = [
         "serverPath",
-        "cargoFeatures",
-        "excludeGlobs",
-        "useClientWatching",
+        "cargo",
+        "files",
         "highlighting",
         "updates.channel",
     ]
@@ -71,17 +70,8 @@ export class Config {
     get channel() { return this.cfg.get<UpdatesChannel>("updates.channel")!; }
     get askBeforeDownload() { return this.cfg.get<boolean>("updates.askBeforeDownload")!; }
     get highlightingSemanticTokens() { return this.cfg.get<boolean>("highlighting.semanticTokens")!; }
-    get lruCapacity() { return this.cfg.get<null | number>("lruCapacity")!; }
-    get excludeGlobs() { return this.cfg.get<string[]>("excludeGlobs")!; }
-    get useClientWatching() { return this.cfg.get<boolean>("useClientWatching")!; }
-    get featureFlags() { return this.cfg.get<Record<string, boolean>>("featureFlags")!; }
-    get rustfmtArgs() { return this.cfg.get<string[]>("rustfmtArgs")!; }
-    get loadOutDirsFromCheck() { return this.cfg.get<boolean>("loadOutDirsFromCheck")!; }
     get traceExtension() { return this.cfg.get<boolean>("trace.extension")!; }
 
-    // for internal use
-    get withSysroot() { return this.cfg.get<boolean>("withSysroot", true)!; }
-
     get inlayHints() {
         return {
             typeHints: this.cfg.get<boolean>("inlayHints.typeHints")!,
@@ -91,21 +81,9 @@ export class Config {
         };
     }
 
-    get cargoWatchOptions() {
+    get checkOnSave() {
         return {
-            enable: this.cfg.get<boolean>("cargo-watch.enable")!,
-            arguments: this.cfg.get<string[]>("cargo-watch.arguments")!,
-            allTargets: this.cfg.get<boolean>("cargo-watch.allTargets")!,
-            command: this.cfg.get<string>("cargo-watch.command")!,
-        };
-    }
-
-    get cargoFeatures() {
-        return {
-            noDefaultFeatures: this.cfg.get<boolean>("cargoFeatures.noDefaultFeatures")!,
-            allFeatures: this.cfg.get<boolean>("cargoFeatures.allFeatures")!,
-            features: this.cfg.get<string[]>("cargoFeatures.features")!,
-            loadOutDirsFromCheck: this.cfg.get<boolean>("cargoFeatures.loadOutDirsFromCheck")!,
+            command: this.cfg.get<string>("checkOnSave.command")!,
         };
     }
 }

editors/code/src/ctx.ts

@@ -2,7 +2,7 @@ import * as vscode from 'vscode';
 import * as lc from 'vscode-languageclient';
 
 import { Config } from './config';
-import { createClient, configToServerOptions } from './client';
+import { createClient } from './client';
 import { isRustEditor, RustEditor } from './util';
 
 export class Ctx {
@@ -25,7 +25,6 @@ export class Ctx {
         const res = new Ctx(config, extCtx, client, serverPath);
         res.pushCleanup(client.start());
         await client.onReady();
-        client.onRequest('workspace/configuration', _ => [configToServerOptions(config)]);
         return res;
     }
 

editors/code/src/status_display.ts

@@ -7,7 +7,7 @@ import { Ctx } from './ctx';
 const spinnerFrames = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'];
 
 export function activateStatusDisplay(ctx: Ctx) {
-    const statusDisplay = new StatusDisplay(ctx.config.cargoWatchOptions.command);
+    const statusDisplay = new StatusDisplay(ctx.config.checkOnSave.command);
     ctx.pushCleanup(statusDisplay);
     const client = ctx.client;
     if (client != null) {