89 lines
2.7 KiB
JavaScript
89 lines
2.7 KiB
JavaScript
// This build file creates a static version of the Typr.ts library used for
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// processing fonts. It's isolated within a "factory" function wrapper so it can
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// easily be marshalled into a web worker.
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import nodeResolve from 'rollup-plugin-node-resolve'
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import commonjs from '@rollup/plugin-commonjs'
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import { terser } from 'rollup-plugin-terser'
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const {LERNA_ROOT_PATH} = process.env
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if (!LERNA_ROOT_PATH) {
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throw new Error("Please execute `npm run build-typr` from the repository root.")
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}
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const OUTPUT_TEMPLATE = `
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/*!
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Custom build of Typr.ts (https://github.com/fredli74/Typr.ts) for use in Troika text rendering.
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Original MIT license applies: https://github.com/fredli74/Typr.ts/blob/master/LICENSE
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*/
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export default function() {
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// Trick it into being able to run in a web worker
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if (typeof window === 'undefined') {
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self.window = self
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}
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$$CONTENT$$
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return TyprExports.Typr
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}
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`
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const [banner, footer] = OUTPUT_TEMPLATE.split('$$CONTENT$$')
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export default {
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input: LERNA_ROOT_PATH + '/node_modules/@lojjic/typr/dist/Typr.js',
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plugins: [
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nodeResolve(),
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commonjs(),
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{
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name: 'custom',
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transform(source, id) {
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// Quiet the console.warn statements added in the Typr.ts fork
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source = source.replace(/console\.warn/g, 'console.debug')
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// Replace some unneeded property assignments with unused stub vars so they get pruned out
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// SVG fonts are unsupported by browsers anyway
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removeMethodAssignment('Typr.SVG')
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removeMethodAssignment('Typr.SVG.parse')
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removeMethodAssignment('Typr.SVG.toPath')
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removeMethodAssignment('Typr.SVG._toPath')
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removeMethodAssignment('Typr.SVG._tokens')
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removeMethodAssignment('Typr.SVG._toksToPath')
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removeMethodAssignment('Typr.SVG._reps')
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removeMethodAssignment('Typr.U.pathToSVG')
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removeMethodAssignment('Typr.U.pathToContext')
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// We provide our own implementation for stringToGlyphs that fixes joining-type shaping
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// and improves performance, so don't need the original
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removeMethodAssignment('Typr.U.stringToGlyphs')
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removeMethodAssignment('Typr.U._getWPfeature')
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// Same for position adjustments to support mark anchoring
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removeMethodAssignment('Typr.U.getPairAdjustment')
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return source
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function removeMethodAssignment(name) {
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const re = new RegExp(`(${name}\\s*=)`)
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source = source.replace(re, `var prunable${Math.round(Math.random()*1e12)}=`)
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}
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}
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},
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terser({
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ecma: 5
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})
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],
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output: {
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format: 'iife',
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exports: 'named',
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name: 'TyprExports',
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file: 'libs/typr.factory.js',
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banner,
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footer
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}
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}
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