Platform specific runnables env

editors/code/package.json

@@ -325,6 +325,15 @@
                             "items": {
                                 "type": "object",
                                 "properties": {
+                                    "platform": {
+                                        "type": [
+                                            "null",
+                                            "string",
+                                            "array"
+                                        ],
+                                        "default": null,
+                                        "markdownDescription": "Platform(s) filter like \"win32\" or [\"linux\", \"win32\"]. See [process.platform](https://nodejs.org/api/process.html#processplatform) values."
+                                    },
                                     "mask": {
                                         "type": "string",
                                         "description": "Runnable name mask"

editors/code/src/config.ts

@@ -6,10 +6,12 @@ import type { Env } from "./client";
 import { log } from "./util";
 import { expectNotUndefined, unwrapUndefinable } from "./undefinable";
 
-export type RunnableEnvCfg =
-    | undefined
-    | Record<string, string>
-    | { mask?: string; env: Record<string, string> }[];
+export type RunnableEnvCfgItem = {
+    mask?: string;
+    env: Record<string, string>;
+    platform?: string | string[];
+};
+export type RunnableEnvCfg = undefined | Record<string, string> | RunnableEnvCfgItem[];
 
 export class Config {
     readonly extensionId = "rust-lang.rust-analyzer";

editors/code/src/run.ts

@@ -5,8 +5,9 @@ import * as tasks from "./tasks";
 
 import type { CtxInit } from "./ctx";
 import { makeDebugConfig } from "./debug";
-import type { Config, RunnableEnvCfg } from "./config";
+import type { Config, RunnableEnvCfg, RunnableEnvCfgItem } from "./config";
 import { unwrapUndefinable } from "./undefinable";
+import { string } from "vscode-languageclient/lib/common/utils/is";
 
 const quickPickButtons = [
     { iconPath: new vscode.ThemeIcon("save"), tooltip: "Save as a launch.json configuration." },
@@ -112,11 +113,21 @@ export function prepareEnv(
     }
 
     Object.assign(env, process.env as { [key: string]: string });
+    const platform = process.platform;
+
+    const checkPlatform = (it: RunnableEnvCfgItem) => {
+        if (it.platform) {
+            const platforms = Array.isArray(it.platform) ? it.platform : [it.platform];
+            return platforms.indexOf(platform) >= 0;
+        }
+        return true;
+    };
 
     if (runnableEnvCfg) {
         if (Array.isArray(runnableEnvCfg)) {
             for (const it of runnableEnvCfg) {
-                if (!it.mask || new RegExp(it.mask).test(runnable.label)) {
+                const masked = !it.mask || new RegExp(it.mask).test(runnable.label);
+                if (masked && checkPlatform(it)) {
                     Object.assign(env, it.env);
                 }
             }