support macos arm64

__tests__/installer.test.ts

@@ -25,9 +25,11 @@ describe("installer", () => {
   jest.setTimeout(30 * 1000); // 30sec
   it("gets latest", async () => {
     const macos = await installer.getRelease("latest", "macos", "x86_64");
+    const macos2 = await installer.getRelease("latest", "macos", "arm64");
     const linux = await installer.getRelease("latest", "linux", "x86_64");
     const win = await installer.getRelease("latest", "win", "x86_64");
     expect(macos).toBeDefined();
+    expect(macos2).toBeDefined();
     expect(linux).toBeDefined();
     expect(win).toBeDefined();
   });

src/installer.ts

@@ -28,7 +28,7 @@ export async function getAllReleases(): Promise<Release[]> {
 export async function getRelease(
   version: string,
   platform: "win" | "macos" | "linux",
-  arch: "x86_64"
+  arch: "x86_64" | "arm64"
 ): Promise<Release | null> {
   const releases = (await getAllReleases())
     .filter(
@@ -58,7 +58,7 @@ export async function getRelease(
 export async function getRaku(
   version: string,
   platform: "win" | "macos" | "linux",
-  arch: "x86_64"
+  arch: "x86_64" | "arm64"
 ): Promise<void> {
   const release = await getRelease(version, platform, arch);
   if (release === null) {

src/main.ts

@@ -12,7 +12,8 @@ export async function run(): Promise<void> {
         : os.platform() === "win32"
         ? "win"
         : "linux";
-    await installer.getRaku(version, platform, "x86_64");
+    const arch = os.arch() === "arm64" ? "arm64" : "x86_64";
+    await installer.getRaku(version, platform, arch);
 
     core.startGroup("raku -V");
     await exec.exec("raku", ["-V"]);