mirror of
https://github.com/svg/svgo.git
synced 2025-07-10 19:20:57 +03:00
99 lines
2.5 KiB
JavaScript
99 lines
2.5 KiB
JavaScript
import os from 'os';
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import fs from 'fs/promises';
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import path from 'path';
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import * as svgo from './svgo.js';
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import url from 'url';
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/**
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* @param {string} configFile
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* @returns {Promise<import('./types.js').Config>}
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*/
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const importConfig = async (configFile) => {
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const resolvedPath = path.resolve(configFile);
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const imported = await import(url.pathToFileURL(resolvedPath).toString());
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const config = imported.default;
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if (config == null || typeof config !== 'object' || Array.isArray(config)) {
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throw Error(`Invalid config file "${configFile}"`);
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}
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return config;
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};
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/**
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* @param {string} file
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* @returns {Promise<boolean>}
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*/
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const isFile = async (file) => {
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try {
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const stats = await fs.stat(file);
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return stats.isFile();
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} catch {
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return false;
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}
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};
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export * from './svgo.js';
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/**
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* If you write a tool on top of svgo you might need a way to load svgo config.
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* You can also specify relative or absolute path and customize current working
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* directory.
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*
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* @type {<T extends string | null>(configFile?: T, cwd?: string) => Promise<T extends string ? import('./svgo.js').Config : import('./svgo.js').Config | null>}
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*/
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export const loadConfig = async (configFile, cwd = process.cwd()) => {
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if (configFile != null) {
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if (path.isAbsolute(configFile)) {
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return importConfig(configFile);
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} else {
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return importConfig(path.join(cwd, configFile));
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}
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}
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let dir = cwd;
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while (true) {
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const js = path.join(dir, 'svgo.config.js');
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if (await isFile(js)) {
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return importConfig(js);
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}
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const mjs = path.join(dir, 'svgo.config.mjs');
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if (await isFile(mjs)) {
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return importConfig(mjs);
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}
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const cjs = path.join(dir, 'svgo.config.cjs');
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if (await isFile(cjs)) {
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return importConfig(cjs);
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}
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const parent = path.dirname(dir);
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if (dir === parent) {
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// @ts-expect-error https://github.com/microsoft/TypeScript/issues/33912
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return null;
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}
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dir = parent;
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}
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};
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/**
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* The core of SVGO.
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*
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* @param {string} input
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* @param {import('./svgo.js').Config=} config
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* @returns {import('./svgo.js').Output}
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*/
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export const optimize = (input, config) => {
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if (config == null) {
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config = {};
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}
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if (typeof config !== 'object') {
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throw Error('Config should be an object');
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}
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return svgo.optimize(input, {
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...config,
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js2svg: {
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// platform specific default for end of line
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eol: os.EOL === '\r\n' ? 'crlf' : 'lf',
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...config.js2svg,
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},
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});
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};
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