pinafore/bin/build-svg.js

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import svgs from './svgs'
import path from 'path'
import fs from 'fs'
import { promisify } from 'util'
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import { optimize } from 'svgo'
import $ from 'cheerio'
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const readFile = promisify(fs.readFile)
const writeFile = promisify(fs.writeFile)
async function readSvg (svg) {
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const filepath = path.join(__dirname, '../', svg.src)
const content = await readFile(filepath, 'utf8')
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const optimized = (await optimize(content, { multipass: true }))
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const $optimized = $(optimized.data)
const $path = $optimized.find('path, circle').removeAttr('fill')
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const viewBox = $optimized.attr('viewBox') || `0 0 ${$optimized.attr('width')} ${$optimized.attr('height')}`
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const $symbol = $('<symbol></symbol>')
.attr('id', svg.id)
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.attr('viewBox', viewBox)
.append($path)
return $.xml($symbol)
}
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export async function buildSvg () {
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const inlineSvgs = svgs.filter(_ => _.inline)
const regularSvgs = svgs.filter(_ => !_.inline)
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const inlineSvgStrings = (await Promise.all(inlineSvgs.map(readSvg))).join('')
const regularSvgStrings = (await Promise.all(regularSvgs.map(readSvg))).join('')
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const inlineOutput = `<svg xmlns="http://www.w3.org/2000/svg" style="display:none">${inlineSvgStrings}</svg>`
const regularOutput = `<svg xmlns="http://www.w3.org/2000/svg">${regularSvgStrings}</svg>`
await writeFile(path.resolve(__dirname, '../static/icons.svg'), regularOutput, 'utf8')
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return inlineOutput
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}