144 lines
3.9 KiB
JavaScript
144 lines
3.9 KiB
JavaScript
import { builtinPlugins } from './builtin.js';
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import { encodeSVGDatauri } from './svgo/tools.js';
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import { invokePlugins } from './svgo/plugins.js';
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import { querySelector, querySelectorAll } from './xast.js';
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import { mapNodesToParents } from './util/map-nodes-to-parents.js';
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import { parseSvg } from './parser.js';
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import { stringifySvg } from './stringifier.js';
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import { VERSION } from './version.js';
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import * as _collections from '../plugins/_collections.js';
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const pluginsMap = new Map();
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for (const plugin of builtinPlugins) {
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pluginsMap.set(plugin.name, plugin);
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}
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/**
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* @param {string} name
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* @returns {import('./types.js').BuiltinPluginOrPreset<?, ?>}
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*/
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function getPlugin(name) {
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if (name === 'removeScriptElement') {
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console.warn(
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'Warning: removeScriptElement has been renamed to removeScripts, please update your SVGO config',
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);
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return pluginsMap.get('removeScripts');
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}
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return pluginsMap.get(name);
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}
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/**
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* @param {string | import('./types.js').PluginConfig} plugin
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* @returns {?import('./types.js').PluginConfig}
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*/
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const resolvePluginConfig = (plugin) => {
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if (typeof plugin === 'string') {
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// resolve builtin plugin specified as string
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const builtinPlugin = getPlugin(plugin);
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if (builtinPlugin == null) {
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throw Error(`Unknown builtin plugin "${plugin}" specified.`);
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}
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return {
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name: plugin,
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params: {},
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fn: builtinPlugin.fn,
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};
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}
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if (typeof plugin === 'object' && plugin != null) {
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if (plugin.name == null) {
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throw Error(`Plugin name must be specified`);
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}
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// use custom plugin implementation
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// @ts-expect-error Checking for CustomPlugin with the presence of fn
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let fn = plugin.fn;
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if (fn == null) {
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// resolve builtin plugin implementation
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const builtinPlugin = getPlugin(plugin.name);
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if (builtinPlugin == null) {
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throw Error(`Unknown builtin plugin "${plugin.name}" specified.`);
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}
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fn = builtinPlugin.fn;
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}
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return {
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name: plugin.name,
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params: plugin.params,
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fn,
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};
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}
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return null;
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};
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export * from './types.js';
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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('./types.js').Config=} config
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* @returns {import('./types.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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const maxPassCount = config.multipass ? 10 : 1;
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let prevResultSize = Number.POSITIVE_INFINITY;
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let output = '';
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const info = {};
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if (config.path != null) {
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info.path = config.path;
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}
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for (let i = 0; i < maxPassCount; i += 1) {
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info.multipassCount = i;
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const ast = parseSvg(input, config.path);
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const plugins = config.plugins || ['preset-default'];
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if (!Array.isArray(plugins)) {
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throw Error(
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'malformed config, `plugins` property must be an array.\nSee more info here: https://github.com/svg/svgo#configuration',
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);
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}
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const resolvedPlugins = plugins
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.filter((plugin) => plugin != null)
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.map(resolvePluginConfig);
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if (resolvedPlugins.length < plugins.length) {
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console.warn(
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'Warning: plugins list includes null or undefined elements, these will be ignored.',
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);
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}
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/** @type {import('./types.js').Config} */
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const globalOverrides = {};
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if (config.floatPrecision != null) {
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globalOverrides.floatPrecision = config.floatPrecision;
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}
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invokePlugins(ast, info, resolvedPlugins, null, globalOverrides);
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output = stringifySvg(ast, config.js2svg);
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if (output.length < prevResultSize) {
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input = output;
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prevResultSize = output.length;
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} else {
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break;
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}
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}
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if (config.datauri) {
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output = encodeSVGDatauri(output, config.datauri);
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}
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return {
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data: output,
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};
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};
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export {
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VERSION,
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builtinPlugins,
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mapNodesToParents,
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querySelector,
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querySelectorAll,
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_collections,
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};
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