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forgejo/build/generate-svg.js
wxiaoguang a797b8458e
Keep (add if not existing) xmlns attribute for generated SVG images (#23410)
Fix #23409 

Developers could browse & preview the local SVG images files directly.

It still has clear output.

![image](https://user-images.githubusercontent.com/2114189/224317107-f4b26c76-e36a-4e80-9eee-d8dc2e16421f.png)


![image](https://user-images.githubusercontent.com/2114189/224317527-2d4ca131-978c-4933-b071-4bae483f06e1.png)

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: delvh <leon@kske.dev>
2023-03-21 13:39:27 +08:00

66 lines
2 KiB
JavaScript
Executable file

#!/usr/bin/env node
import fastGlob from 'fast-glob';
import {optimize} from 'svgo';
import {parse} from 'node:path';
import {readFile, writeFile, mkdir} from 'node:fs/promises';
import {fileURLToPath} from 'node:url';
const glob = (pattern) => fastGlob.sync(pattern, {
cwd: fileURLToPath(new URL('..', import.meta.url)),
absolute: true,
});
function exit(err) {
if (err) console.error(err);
process.exit(err ? 1 : 0);
}
async function processFile(file, {prefix, fullName} = {}) {
let name;
if (fullName) {
name = fullName;
} else {
name = parse(file).name;
if (prefix) name = `${prefix}-${name}`;
if (prefix === 'octicon') name = name.replace(/-[0-9]+$/, ''); // chop of '-16' on octicons
}
// Set the `xmlns` attribute so that the files are displayable in standalone documents
// The svg backend module will strip the attribute during startup for inline display
const {data} = optimize(await readFile(file, 'utf8'), {
plugins: [
{name: 'preset-default'},
{name: 'removeDimensions'},
{name: 'prefixIds', params: {prefix: () => name}},
{name: 'addClassesToSVGElement', params: {classNames: ['svg', name]}},
{
name: 'addAttributesToSVGElement', params: {
attributes: [
{'xmlns': 'http://www.w3.org/2000/svg'},
{'width': '16'}, {'height': '16'}, {'aria-hidden': 'true'},
]
}
},
],
});
await writeFile(fileURLToPath(new URL(`../public/img/svg/${name}.svg`, import.meta.url)), data);
}
function processFiles(pattern, opts) {
return glob(pattern).map((file) => processFile(file, opts));
}
async function main() {
try {
await mkdir(fileURLToPath(new URL('../public/img/svg', import.meta.url)), {recursive: true});
} catch {}
await Promise.all([
...processFiles('node_modules/@primer/octicons/build/svg/*-16.svg', {prefix: 'octicon'}),
...processFiles('web_src/svg/*.svg'),
...processFiles('public/img/gitea.svg', {fullName: 'gitea-gitea'}),
]);
}
main().then(exit).catch(exit);