43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
import File from "vinyl";
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import tmp from "tmp";
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import { execFile } from "node:child_process";
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import { readFileSync, unlinkSync } from "node:fs";
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import hashPaths from "../hash.js";
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import { src, then, synchronise, dest } from "../rx-utils.js";
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import { map } from "rxjs";
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const FONT_PRESETS = {
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mono: { ranges: ["20-7F", "2205", "2E22-2E25", "2713", "2717"] },
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text: { ranges: ["20-7F", "A0-FF", "2000-206F", "20AC"] },
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};
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function compileFont(font: File): Promise<File> {
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const [, variant, weight] = /([A-Z][a-z]+)-(\w+)\.ttf$/.exec(font.basename);
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const tmpOutput = tmp.fileSync({ discardDescriptor: true });
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const unicodes = FONT_PRESETS[variant.toLowerCase()].ranges;
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return new Promise((resolve) => {
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execFile("pyftsubset", [
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font.path,
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`--unicodes=${unicodes.join(",")}`,
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`--output-file=${tmpOutput.name}`,
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"--flavor=woff2",
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]).once("exit", () => {
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font.path = `iosevka-adaedra-${variant.toLowerCase()}-${weight.toLowerCase()}.woff2`;
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font.contents = readFileSync(tmpOutput.name);
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font.base = null;
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unlinkSync(tmpOutput.name);
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resolve(font);
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});
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});
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}
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export const fonts = () =>
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src("vendor/*.ttf").pipe(
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then(compileFont),
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synchronise(),
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hashPaths("fonts.manifest"),
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map(dest("dist/_assets")),
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);
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