59 lines
1.9 KiB
JavaScript
59 lines
1.9 KiB
JavaScript
const esbuild = require("esbuild");
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const fs = require("fs");
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const htmlMinifier = require("html-minifier");
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const path = require("path");
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const iterations = parseInt(process.env.MHB_ITERATIONS, 10);
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const inputDir = process.env.MHB_INPUT_DIR;
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const htmlOnly = process.env.MHB_HTML_ONLY === "1";
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const esbuildCss = (code) =>
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esbuild.transformSync(code, {
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loader: "css",
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minify: true,
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}).code;
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const esbuildJs = (code) =>
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esbuild.transformSync(code, {
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loader: "js",
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minify: true,
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}).code;
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const htmlMinifierCfg = {
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collapseBooleanAttributes: true,
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collapseInlineTagWhitespace: true,
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collapseWhitespace: true,
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// minify-html can do context-aware whitespace removal, which is safe when configured correctly to match how whitespace is used in the document.
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// html-minifier cannot, so whitespace must be collapsed conservatively.
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// Alternatively, minify-html can also be made to remove whitespace regardless of context.
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conservativeCollapse: true,
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customEventAttributes: [],
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decodeEntities: true,
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ignoreCustomComments: [],
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ignoreCustomFragments: [/<\?[\s\S]*?\?>/],
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minifyCSS: !htmlOnly && esbuildCss,
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minifyJS: !htmlOnly && esbuildJs,
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processConditionalComments: true,
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removeAttributeQuotes: true,
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removeComments: true,
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removeEmptyAttributes: true,
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removeOptionalTags: true,
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removeRedundantAttributes: true,
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removeScriptTypeAttributes: true,
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removeStyleLinkTypeAttributes: true,
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removeTagWhitespace: true,
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useShortDoctype: true,
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};
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const results = fs.readdirSync(inputDir).map((name) => {
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const src = fs.readFileSync(path.join(inputDir, name), "utf8");
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const start = process.hrtime.bigint();
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let len;
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for (let i = 0; i < iterations; i++) {
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len = htmlMinifier.minify(src, htmlMinifierCfg).length;
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}
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const elapsed = process.hrtime.bigint() - start;
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return [name, len, iterations, Number(elapsed) / 1_000_000_000];
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});
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console.log(JSON.stringify(results));
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