3 lines
13 KiB
JavaScript
3 lines
13 KiB
JavaScript
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#!/usr/bin/env node
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"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e=require("commander"),t=require("fs"),s=require("glob"),r=require("path"),o=require("postcss"),i=require("postcss-selector-parser"),n=require("util");function a(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}function c(e){if(e&&e.__esModule)return e;var t=Object.create(null);return e&&Object.keys(e).forEach((function(s){if("default"!==s){var r=Object.getOwnPropertyDescriptor(e,s);Object.defineProperty(t,s,r.get?r:{enumerable:!0,get:function(){return e[s]}})}})),t.default=e,Object.freeze(t)}var u=c(t),l=c(s),d=c(r),f=c(o),h=a(i),p="5.0.0",m="Remove unused css selectors";function g(e,t){t&&t.forEach(e.add,e)}class v{constructor(e){this.undetermined=new Set,this.attrNames=new Set,this.attrValues=new Set,this.classes=new Set,this.ids=new Set,this.tags=new Set,this.merge(e)}merge(e){return Array.isArray(e)?g(this.undetermined,e):e instanceof v?(g(this.undetermined,e.undetermined),g(this.attrNames,e.attrNames),g(this.attrValues,e.attrValues),g(this.classes,e.classes),g(this.ids,e.ids),g(this.tags,e.tags)):(g(this.undetermined,e.undetermined),e.attributes&&(g(this.attrNames,e.attributes.names),g(this.attrValues,e.attributes.values)),g(this.classes,e.classes),g(this.ids,e.ids),g(this.tags,e.tags)),this}hasAttrName(e){return this.attrNames.has(e)||this.undetermined.has(e)}someAttrValue(e){for(const t of this.attrValues)if(e(t))return!0;for(const t of this.undetermined)if(e(t))return!0;return!1}hasAttrPrefix(e){return this.someAttrValue((t=>t.startsWith(e)))}hasAttrSuffix(e){return this.someAttrValue((t=>t.endsWith(e)))}hasAttrSubstr(e){return e.trim().split(" ").every((e=>this.someAttrValue((t=>t.includes(e)))))}hasAttrValue(e){return this.attrValues.has(e)||this.undetermined.has(e)}hasClass(e){return this.classes.has(e)||this.undetermined.has(e)}hasId(e){return this.ids.has(e)||this.undetermined.has(e)}hasTag(e){return this.tags.has(e)||this.undetermined.has(e)}}const y=["*",":root",":after",":before"],b={css:[],content:[],defaultExtractor:e=>e.match(/[A-Za-z0-9_-]+/g)||[],extractors:[],fontFace:!1,keyframes:!1,rejected:!1,rejectedCss:!1,sourceMap:!1,stdin:!1,stdout:!1,variables:!1,safelist:{standard:[],deep:[],greedy:[],variables:[],keyframes:[]},blocklist:[],skippedContentGlobs:[],dynamicAttributes:[]};class S{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class w{constructor(){this.nodes=new Map,this.usedVariables=new Set,this.safelist=[]}addVariable(e){const{prop:t}=e;if(this.nodes.has(t)){const s=new S(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new S(e);this.nodes.set(t,[s])}}addVariableUsage(e,t){const{prop:s}=e,r=this.nodes.get(s);for(const e of t){const t=e[1];if(this.nodes.has(t)){const e=this.nodes.get(t);null==r||r.forEach((t=>{null==e||e.forEach((e=>t.nodes.push(e)))}))}}}addVariableUsageInProperties(e){for(const t of e){const e=t[1];this.usedVariables.add(e)}}setAsUsed(e){const t=this.nodes.get(e);if(t){const e=[...t];for(;0!==e.length;){const t=e.pop();t&&!t.isUsed&&(t.isUsed=!0,e.push(...t.nodes))}}}removeUnused(){for(const e of this.usedVariables){const t=this.nodes.get(e);if(t)for(const e of t){const t=e.value.value.matchAll(/var\((.+?)[,)]/g);for(const e of t)this.usedVariables.has(e[1])||this.usedVariables.add(e[1])}}for(const e of this.usedVariables)this.setAsUsed(e);for(const[e,t]of this.nodes)for(const s of t)s.isUsed||this.isVariablesSafelisted(e)||s.value.remove()}isVariablesSafelisted(e){return this.safelist.some((t=>"string"==typeof t?t===e:t.test(e)))}}const k={access:n.promisify(u.access),readFile:n.promisify(u.readFile)};function F(e=[]){return Array.isArray(e)?{...b.safelist,standard:e}:{...b.safelist,...e}}async function A(e="purgecss.config.js"){let t;try{const s=d.resolve(process.cwd(),e);t=await function(e){return Promise.resolve().then((function(){return c(require(e))}))}(s)}catch(e){if(e instanceof Error)throw new Error(`Error loading the config file ${e.message}`);throw new Error}return{...b,...t,safelist:F(t.safelist)}}async function x(e,t){return new v(await t(e))}funct
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