Add runtime directory to system PATH for windows (#140)

Author: tsharmaMW

tasks/install-matlab/v1/src/install.ts

@@ -2,6 +2,7 @@
 
 import {AgentHostedMode, getAgentMode} from "azure-pipelines-task-lib/task";
 import * as toolLib from "azure-pipelines-tool-lib/tool";
+import * as fs from "fs";
 import * as path from "path";
 import * as matlab from "./matlab";
 import * as mpm from "./mpm";
@@ -41,4 +42,16 @@ export async function install(platform: string, architecture: string, release: s
 
     // install matlab-batch
     await matlab.setupBatch(platform, matlabArch);
+
+    // add MATLAB Runtime to system path on Windows
+    if (platform === "win32") {
+        try {
+            const runtimePath = path.join(toolpath, "runtime", matlabArch === "x86" ? "win32" : "win64");
+            if (fs.existsSync(runtimePath)) {
+                toolLib.prependPath(runtimePath);
+            }
+        } catch (err: any) {
+            throw new Error("Failed to add MATLAB Runtime to system path on windows.");
+        }
+    }
 }

tasks/install-matlab/v1/test/install.test.ts

@@ -3,6 +3,7 @@
 import * as assert from "assert";
 import * as taskLib from "azure-pipelines-task-lib/task";
 import * as toolLib from "azure-pipelines-tool-lib/tool";
+import * as fs from "fs";
 import * as sinon from "sinon";
 import * as install from "../src/install";
 import * as matlab from "../src/matlab";
@@ -19,6 +20,7 @@ export default function suite() {
         let stubMpmSetup: sinon.SinonStub;
         let stubMpmInstall: sinon.SinonStub;
         let stubPrependPath: sinon.SinonStub;
+        let stubExistsSync: sinon.SinonStub;
 
         const platform = "linux";
         const architecture = "x64";
@@ -44,6 +46,7 @@ export default function suite() {
             stubMpmSetup = sinon.stub(mpm, "setup");
             stubMpmInstall = sinon.stub(mpm, "install");
             stubPrependPath = sinon.stub(toolLib, "prependPath");
+            stubExistsSync = sinon.stub(fs, "existsSync");
         });
 
         afterEach(() => {
@@ -55,6 +58,7 @@ export default function suite() {
             stubMpmSetup.restore();
             stubMpmInstall.restore();
             stubPrependPath.restore();
+            stubExistsSync.restore();
         });
 
         it("ideally works", async () => {
@@ -102,5 +106,13 @@ export default function suite() {
             assert(stubSetupBatch.calledWith("darwin", "x64"));
             assert(stubMpmSetup.calledWith("darwin", "x64"));
         });
+
+        // Update the test cases
+        it("adds MATLAB Runtime to system path on Windows if directory exists", async () => {
+            stubExistsSync.returns(true);
+            await install.install("win32", "x64", release, products);
+            assert(stubPrependPath.calledWith(`${toolcacheDir}/runtime/win64`));
+        });
+
     });
 }