44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
import { Transform } from "node:stream";
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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 { src, dest } from "gulp";
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import hashPaths from "../hash.js";
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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() {
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return new Transform({
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objectMode: true,
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async transform(chunk: File, _, callback) {
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const [, variant, weight] = /([A-Z][a-z]+)-(\w+)\.ttf$/.exec(chunk.basename);
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const tmpOutput = tmp.fileSync({ discardDescriptor: true });
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const unicodes = FONT_PRESETS[variant.toLowerCase()].ranges;
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execFile("pyftsubset", [
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chunk.path,
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`--unicodes=${unicodes.join(",")}`,
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`--output-file=${tmpOutput.name}`,
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"--flavor=woff2",
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]).once("exit", () => {
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chunk.path = `iosevka-adaedra-${variant.toLowerCase()}-${weight.toLowerCase()}.woff2`;
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chunk.contents = readFileSync(tmpOutput.name);
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chunk.base = null;
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unlinkSync(tmpOutput.name);
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callback(null, chunk);
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});
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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")
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.pipe(compileFont())
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.pipe(hashPaths("fonts.manifest"))
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.pipe(dest("dist/_assets"));
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