:arrow_up: rust-analyzer

3 files changed, 23 insertions, 131 deletions

diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts
index 27ab31db8db..05d4d08f70b 100644
--- a/editors/code/src/client.ts
+++ b/editors/code/src/client.ts
@@ -5,7 +5,6 @@ import * as Is from "vscode-languageclient/lib/common/utils/is";
 import { assert } from "./util";
 import { WorkspaceEdit } from "vscode";
 import { Workspace } from "./ctx";
-import { updateConfig } from "./config";
 import { substituteVariablesInEnv } from "./config";
 import { outputChannel, traceOutputChannel } from "./main";
 import { randomUUID } from "crypto";
@@ -86,11 +85,6 @@ export async function createClient(
 
     let initializationOptions = vscode.workspace.getConfiguration("rust-analyzer");
 
-    // Update outdated user configs
-    await updateConfig(initializationOptions).catch((err) => {
-        void vscode.window.showErrorMessage(`Failed updating old config keys: ${err.message}`);
-    });
-
     if (workspace.kind === "Detached Files") {
         initializationOptions = {
             detachedFiles: workspace.files.map((file) => file.uri.fsPath),
@@ -105,22 +99,6 @@ export async function createClient(
         traceOutputChannel: traceOutputChannel(),
         outputChannel: outputChannel(),
         middleware: {
-            async handleDiagnostics(uri, diagnostics, next) {
-                // Workaround for https://github.com/microsoft/vscode/issues/155531
-                for (const diagnostic of diagnostics) {
-                    if (!diagnostic.message) {
-                        diagnostic.message = " ";
-                    }
-                    if (diagnostic.relatedInformation) {
-                        for (const relatedInformation of diagnostic.relatedInformation) {
-                            if (!relatedInformation.message) {
-                                relatedInformation.message = " ";
-                            }
-                        }
-                    }
-                }
-                next(uri, diagnostics);
-            },
             async provideHover(
                 document: vscode.TextDocument,
                 position: vscode.Position,
diff --git a/editors/code/src/config.ts b/editors/code/src/config.ts
index b83582a344a..a9c0f079b3d 100644
--- a/editors/code/src/config.ts
+++ b/editors/code/src/config.ts
@@ -3,8 +3,6 @@ import * as vscode from "vscode";
 import { Env } from "./client";
 import { log } from "./util";
 
-export type UpdatesChannel = "stable" | "nightly";
-
 export type RunnableEnvCfg =
     | undefined
     | Record<string, string>
@@ -175,100 +173,6 @@ export class Config {
     }
 }
 
-export async function updateConfig(config: vscode.WorkspaceConfiguration) {
-    const renames = [
-        ["assist.allowMergingIntoGlobImports", "imports.merge.glob"],
-        ["assist.exprFillDefault", "assist.expressionFillDefault"],
-        ["assist.importEnforceGranularity", "imports.granularity.enforce"],
-        ["assist.importGranularity", "imports.granularity.group"],
-        ["assist.importMergeBehavior", "imports.granularity.group"],
-        ["assist.importMergeBehaviour", "imports.granularity.group"],
-        ["assist.importGroup", "imports.group.enable"],
-        ["assist.importPrefix", "imports.prefix"],
-        ["primeCaches.enable", "cachePriming.enable"],
-        ["cache.warmup", "cachePriming.enable"],
-        ["cargo.loadOutDirsFromCheck", "cargo.buildScripts.enable"],
-        ["cargo.runBuildScripts", "cargo.buildScripts.enable"],
-        ["cargo.runBuildScriptsCommand", "cargo.buildScripts.overrideCommand"],
-        ["cargo.useRustcWrapperForBuildScripts", "cargo.buildScripts.useRustcWrapper"],
-        ["completion.snippets", "completion.snippets.custom"],
-        ["diagnostics.enableExperimental", "diagnostics.experimental.enable"],
-        ["experimental.procAttrMacros", "procMacro.attributes.enable"],
-        ["highlighting.strings", "semanticHighlighting.strings.enable"],
-        ["highlightRelated.breakPoints", "highlightRelated.breakPoints.enable"],
-        ["highlightRelated.exitPoints", "highlightRelated.exitPoints.enable"],
-        ["highlightRelated.yieldPoints", "highlightRelated.yieldPoints.enable"],
-        ["highlightRelated.references", "highlightRelated.references.enable"],
-        ["hover.documentation", "hover.documentation.enable"],
-        ["hover.linksInHover", "hover.links.enable"],
-        ["hoverActions.linksInHover", "hover.links.enable"],
-        ["hoverActions.debug", "hover.actions.debug.enable"],
-        ["hoverActions.enable", "hover.actions.enable.enable"],
-        ["hoverActions.gotoTypeDef", "hover.actions.gotoTypeDef.enable"],
-        ["hoverActions.implementations", "hover.actions.implementations.enable"],
-        ["hoverActions.references", "hover.actions.references.enable"],
-        ["hoverActions.run", "hover.actions.run.enable"],
-        ["inlayHints.chainingHints", "inlayHints.chainingHints.enable"],
-        ["inlayHints.closureReturnTypeHints", "inlayHints.closureReturnTypeHints.enable"],
-        ["inlayHints.hideNamedConstructorHints", "inlayHints.typeHints.hideNamedConstructor"],
-        ["inlayHints.parameterHints", "inlayHints.parameterHints.enable"],
-        ["inlayHints.reborrowHints", "inlayHints.reborrowHints.enable"],
-        ["inlayHints.typeHints", "inlayHints.typeHints.enable"],
-        ["lruCapacity", "lru.capacity"],
-        ["runnables.cargoExtraArgs", "runnables.extraArgs"],
-        ["runnables.overrideCargo", "runnables.command"],
-        ["rustcSource", "rustc.source"],
-        ["rustfmt.enableRangeFormatting", "rustfmt.rangeFormatting.enable"],
-    ];
-
-    for (const [oldKey, newKey] of renames) {
-        const inspect = config.inspect(oldKey);
-        if (inspect !== undefined) {
-            const valMatrix = [
-                {
-                    val: inspect.globalValue,
-                    langVal: inspect.globalLanguageValue,
-                    target: vscode.ConfigurationTarget.Global,
-                },
-                {
-                    val: inspect.workspaceFolderValue,
-                    langVal: inspect.workspaceFolderLanguageValue,
-                    target: vscode.ConfigurationTarget.WorkspaceFolder,
-                },
-                {
-                    val: inspect.workspaceValue,
-                    langVal: inspect.workspaceLanguageValue,
-                    target: vscode.ConfigurationTarget.Workspace,
-                },
-            ];
-            for (const { val, langVal, target } of valMatrix) {
-                const patch = (val: unknown) => {
-                    // some of the updates we do only append "enable" or "custom"
-                    // that means on the next run we would find these again, but as objects with
-                    // these properties causing us to destroy the config
-                    // so filter those already updated ones out
-                    return (
-                        val !== undefined &&
-                        !(
-                            typeof val === "object" &&
-                            val !== null &&
-                            (oldKey === "completion.snippets" || !val.hasOwnProperty("custom"))
-                        )
-                    );
-                };
-                if (patch(val)) {
-                    await config.update(newKey, val, target, false);
-                    await config.update(oldKey, undefined, target, false);
-                }
-                if (patch(langVal)) {
-                    await config.update(newKey, langVal, target, true);
-                    await config.update(oldKey, undefined, target, true);
-                }
-            }
-        }
-    }
-}
-
 export function substituteVariablesInEnv(env: Env): Env {
     const missingDeps = new Set<string>();
     // vscode uses `env:ENV_NAME` for env vars resolution, and it's easier
diff --git a/editors/code/src/main.ts b/editors/code/src/main.ts
index a9847dd2a65..e9b62e0cc25 100644
--- a/editors/code/src/main.ts
+++ b/editors/code/src/main.ts
@@ -33,7 +33,7 @@ export function outputChannel() {
 }
 
 export interface RustAnalyzerExtensionApi {
-    client: lc.LanguageClient;
+    client?: lc.LanguageClient;
 }
 
 export async function activate(
@@ -48,6 +48,23 @@ export async function activate(
 }
 
 async function tryActivate(context: vscode.ExtensionContext): Promise<RustAnalyzerExtensionApi> {
+    // We only support local folders, not eg. Live Share (`vlsl:` scheme), so don't activate if
+    // only those are in use.
+    // (r-a still somewhat works with Live Share, because commands are tunneled to the host)
+    const folders = (vscode.workspace.workspaceFolders || []).filter(
+        (folder) => folder.uri.scheme === "file"
+    );
+    const rustDocuments = vscode.workspace.textDocuments.filter((document) =>
+        isRustDocument(document)
+    );
+
+    if (folders.length === 0 && rustDocuments.length === 0) {
+        // FIXME: Ideally we would choose not to activate at all (and avoid registering
+        // non-functional editor commands), but VS Code doesn't seem to have a good way of doing
+        // that
+        return {};
+    }
+
     const config = new Config(context);
     const state = new PersistentState(context.globalState);
     const serverPath = await bootstrap(context, config, state).catch((err) => {
@@ -60,18 +77,11 @@ async function tryActivate(context: vscode.ExtensionContext): Promise<RustAnalyz
         throw new Error(message);
     });
 
-    if ((vscode.workspace.workspaceFolders || []).length === 0) {
-        const rustDocuments = vscode.workspace.textDocuments.filter((document) =>
-            isRustDocument(document)
-        );
-        if (rustDocuments.length > 0) {
-            ctx = await Ctx.create(config, context, serverPath, {
-                kind: "Detached Files",
-                files: rustDocuments,
-            });
-        } else {
-            throw new Error("no rust files are opened");
-        }
+    if (folders.length === 0) {
+        ctx = await Ctx.create(config, context, serverPath, {
+            kind: "Detached Files",
+            files: rustDocuments,
+        });
     } else {
         // Note: we try to start the server before we activate type hints so that it
         // registers its `onDidChangeDocument` handler before us.