Revert "Debug use cargo workspace root as cwd. fixes #13022"

This reverts commit 4ca86edac9.

src/tools/rust-analyzer/editors/code/src/debug.ts

@@ -3,7 +3,7 @@ import * as vscode from "vscode";
 import * as path from "path";
 import type * as ra from "./lsp_ext";
 
-import { Cargo, type ExecutableInfo, getRustcId, getSysroot } from "./toolchain";
+import { Cargo, getRustcId, getSysroot } from "./toolchain";
 import type { Ctx } from "./ctx";
 import { prepareEnv } from "./run";
 import { unwrapUndefinable } from "./undefinable";
@@ -12,7 +12,6 @@ const debugOutput = vscode.window.createOutputChannel("Debug");
 type DebugConfigProvider = (
     config: ra.Runnable,
     executable: string,
-    cargoWorkspace: string,
     env: Record<string, string>,
     sourceFileMap?: Record<string, string>,
 ) => vscode.DebugConfiguration;
@@ -134,7 +133,7 @@ async function getDebugConfiguration(
     }
 
     const env = prepareEnv(runnable, ctx.config.runnablesExtraEnv);
-    const { executable, workspace: cargoWorkspace } = await getDebugExecutableInfo(runnable, env);
+    const executable = await getDebugExecutable(runnable, env);
     let sourceFileMap = debugOptions.sourceFileMap;
     if (sourceFileMap === "auto") {
         // let's try to use the default toolchain
@@ -148,13 +147,7 @@ async function getDebugConfiguration(
     }
 
     const provider = unwrapUndefinable(knownEngines[debugEngine.id]);
-    const debugConfig = provider(
-        runnable,
-        simplifyPath(executable),
-        cargoWorkspace,
-        env,
-        sourceFileMap,
-    );
+    const debugConfig = provider(runnable, simplifyPath(executable), env, sourceFileMap);
     if (debugConfig.type in debugOptions.engineSettings) {
         const settingsMap = (debugOptions.engineSettings as any)[debugConfig.type];
         for (var key in settingsMap) {
@@ -176,21 +169,20 @@ async function getDebugConfiguration(
     return debugConfig;
 }
 
-async function getDebugExecutableInfo(
+async function getDebugExecutable(
     runnable: ra.Runnable,
     env: Record<string, string>,
-): Promise<ExecutableInfo> {
+): Promise<string> {
     const cargo = new Cargo(runnable.args.workspaceRoot || ".", debugOutput, env);
-    const executableInfo = await cargo.executableInfoFromArgs(runnable.args.cargoArgs);
+    const executable = await cargo.executableFromArgs(runnable.args.cargoArgs);
 
     // if we are here, there were no compilation errors.
-    return executableInfo;
+    return executable;
 }
 
 function getCCppDebugConfig(
     runnable: ra.Runnable,
     executable: string,
-    cargoWorkspace: string,
     env: Record<string, string>,
     sourceFileMap?: Record<string, string>,
 ): vscode.DebugConfiguration {
@@ -200,7 +192,7 @@ function getCCppDebugConfig(
         name: runnable.label,
         program: executable,
         args: runnable.args.executableArgs,
-        cwd: cargoWorkspace || runnable.args.workspaceRoot,
+        cwd: runnable.args.workspaceRoot,
         sourceFileMap,
         env,
         // See https://github.com/rust-lang/rust-analyzer/issues/16901#issuecomment-2024486941
@@ -213,7 +205,6 @@ function getCCppDebugConfig(
 function getCodeLldbDebugConfig(
     runnable: ra.Runnable,
     executable: string,
-    cargoWorkspace: string,
     env: Record<string, string>,
     sourceFileMap?: Record<string, string>,
 ): vscode.DebugConfiguration {
@@ -223,7 +214,7 @@ function getCodeLldbDebugConfig(
         name: runnable.label,
         program: executable,
         args: runnable.args.executableArgs,
-        cwd: cargoWorkspace || runnable.args.workspaceRoot,
+        cwd: runnable.args.workspaceRoot,
         sourceMap: sourceFileMap,
         sourceLanguages: ["rust"],
         env,
@@ -233,7 +224,6 @@ function getCodeLldbDebugConfig(
 function getNativeDebugConfig(
     runnable: ra.Runnable,
     executable: string,
-    cargoWorkspace: string,
     env: Record<string, string>,
     _sourceFileMap?: Record<string, string>,
 ): vscode.DebugConfiguration {
@@ -244,7 +234,7 @@ function getNativeDebugConfig(
         target: executable,
         // See https://github.com/WebFreak001/code-debug/issues/359
         arguments: quote(runnable.args.executableArgs),
-        cwd: cargoWorkspace || runnable.args.workspaceRoot,
+        cwd: runnable.args.workspaceRoot,
         env,
         valuesFormatting: "prettyPrinters",
     };

src/tools/rust-analyzer/editors/code/src/toolchain.ts

@@ -9,17 +9,11 @@ import { unwrapUndefinable } from "./undefinable";
 
 interface CompilationArtifact {
     fileName: string;
-    workspace: string;
     name: string;
     kind: string;
     isTest: boolean;
 }
 
-export interface ExecutableInfo {
-    executable: string;
-    workspace: string;
-}
-
 export interface ArtifactSpec {
     cargoArgs: string[];
     filter?: (artifacts: CompilationArtifact[]) => CompilationArtifact[];
@@ -74,7 +68,6 @@ export class Cargo {
                             artifacts.push({
                                 fileName: message.executable,
                                 name: message.target.name,
-                                workspace: path.dirname(message.manifest_path),
                                 kind: message.target.kind[0],
                                 isTest: message.profile.test,
                             });
@@ -93,7 +86,7 @@ export class Cargo {
         return spec.filter?.(artifacts) ?? artifacts;
     }
 
-    async executableInfoFromArgs(args: readonly string[]): Promise<ExecutableInfo> {
+    async executableFromArgs(args: readonly string[]): Promise<string> {
         const artifacts = await this.getArtifacts(Cargo.artifactSpec(args));
 
         if (artifacts.length === 0) {
@@ -103,10 +96,7 @@ export class Cargo {
         }
 
         const artifact = unwrapUndefinable(artifacts[0]);
-        return {
-            executable: artifact.fileName,
-            workspace: artifact.workspace,
-        };
+        return artifact.fileName;
     }
 
     private async runCargo(