feat(monospace): EPUB export embeds TTF via --epub-embed-font + manifest patch

2026-08-23 23:10:17 +05:30 · 2026-08-23 19:31:33 +05:30
parent fac0d3d4a6
commit 7a5a2ecba6
3 changed files with 115 additions and 0 deletions
@@ -0,0 +1,31 @@
+const fs = require('fs');
+const path = require('path');
+const JSZip = require('jszip');
+const EpubFontEmbedder = require('../src/main/EpubFontEmbedder');
+
+describe('EpubFontEmbedder.patchManifest', () => {
+  const fixturesDir = path.join(__dirname, 'fixtures');
+  const epubPath = path.join(fixturesDir, 'fake.epub');
+  const fontPath = path.join(fixturesDir, 'fake.ttf');
+
+  beforeAll(async () => {
+    fs.mkdirSync(fixturesDir, { recursive: true });
+    fs.writeFileSync(fontPath, 'fake-ttf-binary');
+    const zip = new JSZip();
+    zip.file('OEBPS/content.opf', '<?xml version="1.0"?><package xmlns="http://www.idpf.org/2007/opf"></package>');
+    fs.writeFileSync(epubPath, await zip.generateAsync({ type: 'nodebuffer' }));
+  });
+
+  afterAll(() => fs.rmSync(fixturesDir, { recursive: true, force: true }));
+
+  test('adds a manifest entry referencing the TTF when missing', async () => {
+    const patched = await EpubFontEmbedder.patchManifest(epubPath, [
+      { path: fontPath, family: 'JetBrains Mono', weight: 400 },
+    ]);
+    const out = fs.readFileSync(patched);
+    const zip = await JSZip.loadAsync(out);
+    const opf = await zip.file('OEBPS/content.opf').async('string');
+    expect(opf).toMatch(/<item[^>]*href="OEBPS\/fonts\/fake\.ttf"/);
+    expect(opf).toMatch(/<item[^>]*media-type="application\/x-font-ttf"/);
+  });
+});