75 lines
2 KiB
JavaScript
75 lines
2 KiB
JavaScript
#!/usr/bin/env node
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/**
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* @fileoverview
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* Compiles our icons into static .js files that can be imported in the browser
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* and are tree-shakeable.
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* The static .js files go in icons/{filename}.js.
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* Also generates an index.js that exports all icons by title, but is not tree-shakeable
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*/
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const fs = require("fs");
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const util = require("util");
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const minify = require("uglify-js").minify;
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const UTF8 = "utf8";
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const dataFile = "../_data/simple-icons.json";
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const indexFile = `${__dirname}/../index.js`;
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const iconsDir = `${__dirname}/../icons`;
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const indexTemplateFile = `${__dirname}/templates/index.js`;
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const iconObjectTemplateFile = `${__dirname}/templates/icon-object.js`;
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const indexTemplate = fs.readFileSync(indexTemplateFile, UTF8);
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const iconObjectTemplate = fs.readFileSync(iconObjectTemplateFile, UTF8);
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const data = require(dataFile);
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const { titleToFilename } = require("./utils");
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// Local helper functions
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function escape(value) {
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return value.replace(/'/g, "\\'");
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}
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function iconToKeyValue(icon) {
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const iconTitle = escape(icon.title);
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return `'${iconTitle}':${iconToObject(icon)}`;
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}
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function iconToObject(icon) {
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return util.format(iconObjectTemplate,
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escape(icon.title),
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escape(icon.slug),
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escape(icon.svg),
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escape(icon.source),
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escape(icon.hex)
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);
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}
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// 'main'
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const icons = [];
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data.icons.forEach(icon => {
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const filename = titleToFilename(icon.title);
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icon.svg = fs.readFileSync(`${iconsDir}/${filename}.svg`, UTF8).replace(/\r?\n/, '');
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icon.slug = filename;
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icons.push(icon);
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// write the static .js file for the icon
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const { error, code } = minify(`module.exports=${iconToObject(icon)};`);
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if (error) {
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console.error(error);
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process.exit(1);
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} else {
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fs.writeFileSync(`${iconsDir}/${filename}.js`, code);
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}
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});
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// write our generic index.js
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const rawIndexJs = util.format(indexTemplate, icons.map(iconToKeyValue).join(','));
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const { error, code } = minify(rawIndexJs);
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if (error) {
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console.error(error);
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process.exit(1);
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} else {
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fs.writeFileSync(indexFile, code);
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}
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