fix: use universal-darwin on apple silicon

packages/main/src/texlive/install-tl/profile.ts

@@ -1,15 +1,27 @@
 import { writeFile } from 'node:fs/promises';
-import { platform } from 'node:os';
+import { arch, platform } from 'node:os';
 import * as path from 'node:path';
 
 import { Exclude, Expose, Type, instanceToPlain } from 'class-transformer';
 import { Mixin } from 'ts-mixer';
 
-import { SystemTrees, UserTrees } from '#/texlive/install-tl/texmf';
+import {
+  SystemTrees,
+  type TexmfOptions,
+  UserTrees,
+} from '#/texlive/install-tl/texmf';
+import type { Version } from '#/texlive/version';
 import { Case, type Tmpdir, mkdtemp } from '#/util';
 
 @Exclude()
 export class Profile extends Mixin(SystemTrees, UserTrees) {
+  constructor(version: Version, options: TexmfOptions) {
+    super(version, options);
+    if (version < '2020' && platform() === 'darwin' && arch() === 'arm64') {
+      this.binary = 'universal-darwin';
+    }
+  }
+
   @Case('snake')
   get selectedScheme(): string {
     // `scheme-infraonly` was first introduced in TeX Live 2016.
@@ -19,6 +31,8 @@ export class Profile extends Mixin(SystemTrees, UserTrees) {
   readonly instopt = new InstOpt();
   @Expose()
   readonly tlpdbopt = new TlpdbOpt();
+  @Expose({ until: 2017, groups: ['darwin'] })
+  declare readonly binary?: string;
 
   #tmpdir: Tmpdir | undefined;
   #path: string | undefined;
@@ -50,13 +64,12 @@ export class Profile extends Mixin(SystemTrees, UserTrees) {
   }
 
   toJSON(): object {
-    const { instopt, tlpdbopt, ...plain } = instanceToPlain(this, {
+    const { instopt, tlpdbopt, binary, ...plain } = instanceToPlain(this, {
       version: Number.parseInt(this.version),
       groups: [platform()],
-    }) as {
+    }) as Record<string, unknown> & {
       readonly instopt: object;
       readonly tlpdbopt: object;
-      [key: string]: object;
     };
     const options = this.version < '2017'
       ? { option: { ...instopt, ...tlpdbopt } }
@@ -66,6 +79,9 @@ export class Profile extends Mixin(SystemTrees, UserTrees) {
         plain[`${prefix}_${key}`] = value;
       }
     }
+    if (binary !== undefined) {
+      plain[`binary_${binary}`] = '1';
+    }
     return plain;
   }
 }

packages/main/tests/__tests__/texlive/install-tl/profile.test.ts

@@ -1,4 +1,4 @@
-import { beforeAll, describe, expect, it, test, vi } from 'vitest';
+import { beforeAll, beforeEach, describe, expect, it, test, vi } from 'vitest';
 
 import * as os from 'node:os';
 
@@ -11,6 +11,10 @@ vi.unmock('#/texlive/install-tl/profile');
 
 const opts = { prefix: '<prefix>' };
 
+beforeEach(() => {
+  vi.mocked(os.arch).mockReturnValue('x64');
+});
+
 describe('selected_scheme', () => {
   it('uses scheme-infraonly by default', () => {
     const profile = new Profile(LATEST_VERSION, opts);
@@ -41,6 +45,25 @@ describe('instopt_adjustrepo', () => {
   );
 });
 
+describe('binary', () => {
+  it.each(
+    ['linux', 'win32', 'darwin'] as const,
+  )('is unspecified by default', (platform) => {
+    vi.mocked(os.platform).withImplementation(() => platform, () => {
+      const profile = new Profile(LATEST_VERSION, opts);
+      expect(profile).not.toHaveProperty('binary');
+    });
+  });
+
+  it('uses universal-darwin on apple silicon', () => {
+    vi.mocked(os.arch).mockReturnValue('arm64');
+    vi.mocked(os.platform).withImplementation(() => 'darwin', () => {
+      const profile = new Profile('2019', opts);
+      expect(profile).toHaveProperty('binary', 'universal-darwin');
+    });
+  });
+});
+
 describe.each([
   ...(function*(): Generator<Version, void, void> {
     for (let year = 2008; year <= Number.parseInt(LATEST_VERSION); ++year) {