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- import imageminZopfli from 'imagemin-zopfli';
- import {optimize} from 'svgo';
- import {fabric} from 'fabric';
- import fs from 'fs';
- import {resolve, dirname} from 'path';
- import {fileURLToPath} from 'url';
-
- const {readFile, writeFile} = fs.promises;
- const __dirname = dirname(fileURLToPath(import.meta.url));
- const logoFile = resolve(__dirname, '../assets/logo.svg');
-
- function exit(err) {
- if (err) console.error(err);
- process.exit(err ? 1 : 0);
- }
-
- function loadSvg(svg) {
- return new Promise((resolve) => {
- fabric.loadSVGFromString(svg, (objects, options) => {
- resolve({objects, options});
- });
- });
- }
-
- async function generate(svg, outputFile, {size, bg}) {
- if (outputFile.endsWith('.svg')) {
- const {data} = optimize(svg, {
- plugins: [
- 'preset-default',
- 'removeDimensions',
- {
- name: 'addAttributesToSVGElement',
- params: {attributes: [{width: size}, {height: size}]}
- },
- ],
- });
- await writeFile(outputFile, data);
- return;
- }
-
- const {objects, options} = await loadSvg(svg);
- const canvas = new fabric.Canvas();
- canvas.setDimensions({width: size, height: size});
- const ctx = canvas.getContext('2d');
- ctx.scale(options.width ? (size / options.width) : 1, options.height ? (size / options.height) : 1);
-
- if (bg) {
- canvas.add(new fabric.Rect({
- left: 0,
- top: 0,
- height: size * (1 / (size / options.height)),
- width: size * (1 / (size / options.width)),
- fill: 'white',
- }));
- }
-
- canvas.add(fabric.util.groupSVGElements(objects, options));
- canvas.renderAll();
-
- let png = Buffer.from([]);
- for await (const chunk of canvas.createPNGStream()) {
- png = Buffer.concat([png, chunk]);
- }
-
- png = await imageminZopfli({more: true})(png);
- await writeFile(outputFile, png);
- }
-
- async function main() {
- const gitea = process.argv.slice(2).includes('gitea');
- const svg = await readFile(logoFile, 'utf8');
-
- await Promise.all([
- generate(svg, resolve(__dirname, '../public/img/logo.svg'), {size: 32}),
- generate(svg, resolve(__dirname, '../public/img/logo.png'), {size: 512}),
- generate(svg, resolve(__dirname, '../public/img/favicon.png'), {size: 180}),
- generate(svg, resolve(__dirname, '../public/img/avatar_default.png'), {size: 200}),
- generate(svg, resolve(__dirname, '../public/img/apple-touch-icon.png'), {size: 180, bg: true}),
- gitea && generate(svg, resolve(__dirname, '../public/img/gitea.svg'), {size: 32}),
- ]);
- }
-
- main().then(exit).catch(exit);
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