Install Intel version of MATLAB on Apple silicon prior to R2023b

.github/workflows/bat.yml

@@ -58,6 +58,11 @@ jobs:
             products: Symbolic_Math_Toolbox
             check-matlab: matlabVer = ver('matlab'); assert(~isempty(matlabVer));
             check-toolbox: symbolicVer = ver('symbolic'); assert(~isempty(symbolicVer));
+          - os: macos-14
+            release: R2023a
+            products: Symbolic_Math_Toolbox
+            check-matlab: matlabVer = ver('matlab'); assert(strcmp(matlabVer.Release,'(R2023a)'));
+            check-toolbox: symbolicVer = ver('symbolic'); assert(strcmp(symbolicVer.Release,'(R2023a)'));
     steps:
       - uses: actions/download-artifact@v4
         with:

src/install.ts

@@ -29,23 +29,28 @@ export async function install(platform: string, architecture: string, release: s
     );
 
     await core.group("Setting up MATLAB", async () => {
+        let matlabArch = architecture;
+        if (platform === "darwin" && architecture === "arm64" && releaseInfo.name < "r2023b") {
+            matlabArch = "x64";
+        }
+
         let [destination, alreadyExists]: [string, boolean] = await matlab.getToolcacheDir(platform, releaseInfo);
         let cacheHit = false;
 
         if (useCache) {
             const supportFilesDir = matlab.getSupportPackagesPath(platform, releaseInfo.name);
-            cacheHit = await cache.restoreMATLAB(releaseInfo, platform, architecture, products, destination, supportFilesDir);
+            cacheHit = await cache.restoreMATLAB(releaseInfo, platform, matlabArch, products, destination, supportFilesDir);
         }
 
         if (!alreadyExists && !cacheHit) {
-            const mpmPath: string = await mpm.setup(platform, architecture);
+            const mpmPath: string = await mpm.setup(platform, matlabArch);
             await mpm.install(mpmPath, releaseInfo, products, destination);
         }
 
         core.addPath(path.join(destination, "bin"));
         core.setOutput('matlabroot', destination);
 
-        await matlab.setupBatch(platform, architecture);
+        await matlab.setupBatch(platform, matlabArch);
     });
 
     return;

src/install.unit.test.ts

@@ -128,4 +128,16 @@ describe("install procedure", () => {
         expect(mpmSetupMock).toHaveBeenCalledTimes(1);
         expect(mpmInstallMock).toHaveBeenCalledTimes(1);
     });
+
+    it("installs Intel version on Apple silicon prior to R2023b", async () => {
+        matlabGetReleaseInfoMock.mockResolvedValue({
+            name: "r2023a",
+            version: "9.14.0",
+            updateNumber: "latest"    
+        });
+        await expect(install.install("darwin", "arm64", "r2023a", products, true)).resolves.toBeUndefined();
+        expect(matlabInstallSystemDependenciesMock).toHaveBeenCalledWith("darwin", "arm64", "r2023a");
+        expect(matlabSetupBatchMock).toHaveBeenCalledWith("darwin", "x64");
+        expect(mpmSetupMock).toHaveBeenCalledWith("darwin", "x64");
+    });
 });

src/matlab.ts

@@ -207,7 +207,18 @@ export async function installSystemDependencies(platform: string, architecture:
     if (platform === "linux") {
         return script.downloadAndRunScript(platform, properties.matlabDepsUrl, [release]);
     } else if (platform === "darwin" && architecture === "arm64") {
-        return installAppleSiliconJdk();
+        if (release < "r2023b") {
+            return installAppleSiliconRosetta();
+        } else {
+            return installAppleSiliconJdk();
+        }
+    }
+}
+
+async function installAppleSiliconRosetta() {
+    const exitCode = await exec.exec(`sudo softwareupdate --install-rosetta --agree-to-license`);
+    if (exitCode !== 0) {
+        return Promise.reject(Error("Unable to install Rosetta 2."));
     }
 }
 

src/matlab.unit.test.ts

@@ -285,7 +285,7 @@ describe("matlab tests", () => {
         let tcDownloadToolMock: jest.Mock;
         let execMock: jest.Mock;
         const arch = "x64";
-        const release = "R2023b";
+        const release = "r2023b";
 
         beforeEach(() => {
             downloadAndRunScriptMock = script.downloadAndRunScript as jest.Mock;
@@ -330,6 +330,15 @@ describe("matlab tests", () => {
                 expect(tcDownloadToolMock).toHaveBeenCalledWith(properties.appleSiliconJdkUrl, expect.anything());
                 expect(execMock).toHaveBeenCalledWith(`sudo installer -pkg "java.jdk" -target /`);
             });
+
+            it(`works on mac with apple silicon <R2023b`, async () => {
+                const platform = "darwin";
+                execMock.mockResolvedValue(0);
+                await expect(
+                    matlab.installSystemDependencies(platform, "arm64", "r2023a")
+                ).resolves.toBeUndefined();
+                expect(execMock).toHaveBeenCalledWith(`sudo softwareupdate --install-rosetta --agree-to-license`);
+            });
         });
 
         it("rejects when the apple silicon JDK download fails", async () => {