feat(node/os): implement os.machine()

src/bun.js/node/node_os.zig

@@ -36,6 +36,7 @@ pub const Os = struct {
         module.put(globalObject, JSC.ZigString.static("uptime"), JSC.NewFunction(globalObject, JSC.ZigString.static("uptime"), 0, uptime, true));
         module.put(globalObject, JSC.ZigString.static("userInfo"), JSC.NewFunction(globalObject, JSC.ZigString.static("userInfo"), 0, userInfo, true));
         module.put(globalObject, JSC.ZigString.static("version"), JSC.NewFunction(globalObject, JSC.ZigString.static("version"), 0, version, true));
+        module.put(globalObject, JSC.ZigString.static("machine"), JSC.NewFunction(globalObject, JSC.ZigString.static("machine"), 0, machine, true));
 
         module.put(globalObject, JSC.ZigString.static("devNull"), JSC.ZigString.init(devNull).withEncoding().toValue(globalObject));
         module.put(globalObject, JSC.ZigString.static("EOL"), JSC.ZigString.init(EOL).withEncoding().toValue(globalObject));
@@ -314,4 +315,24 @@ pub const Os = struct {
         var name_buffer: [std.os.HOST_NAME_MAX]u8 = undefined;
         return JSC.ZigString.init(C.getVersion(&name_buffer)).withEncoding().toValueGC(globalThis);
     }
+
+    inline fn getMachineName() []const u8 {
+        return switch (@import("builtin").target.cpu.arch) {
+            .arm => "arm",
+            .aarch64 => "aarch64",
+            .mips => "mips",
+            .mips64 => "mips64",
+            .powerpc64 => "ppc64",
+            .powerpc64le => "ppc64le",
+            .s390x => "s390x",
+            .i386 => "i386",
+            .x86_64 => "x86_64",
+            else => "unknown",
+        };
+    }
+
+    pub fn machine(globalThis: *JSC.JSGlobalObject, _: *JSC.CallFrame) callconv(.C) JSC.JSValue {
+        JSC.markBinding(@src());
+        return JSC.ZigString.static(comptime getMachineName()).toValue(globalThis);
+    }
 };

src/bun.js/os.exports.js

@@ -18,6 +18,7 @@ function bound(obj) {
     uptime: obj.uptime.bind(obj),
     userInfo: obj.userInfo.bind(obj),
     version: obj.version.bind(obj),
+    machine: obj.machine.bind(obj),
     devNull: obj.devNull,
     EOL: obj.EOL,
     constants: obj.constants,
@@ -45,6 +46,7 @@ export var {
   uptime,
   userInfo,
   version,
+  machine,
   devNull,
   EOL,
   constants,

test/bun.js/os.test.js

@@ -125,6 +125,23 @@ it("networkInterfaces", () => {
   }
 });
 
+it("machine", () => {
+  const possibleValues = [
+    "arm",
+    "aarch64",
+    "mips",
+    "mips64",
+    "ppc64",
+    "ppc64le",
+    "s390",
+    "s390x",
+    "i386",
+    "i686",
+    "x86_64",
+  ];
+  expect(possibleValues.includes(os.machine())).toBe(true);
+});
+
 it("EOL", () => {
   if (process.platform === "win32") expect(os.EOL).toBe("\\r\\n");
   else expect(os.EOL).toBe("\\n");