purgecss - npm Package Compare versions

Comparing version 5.0.0 to 6.0.0-alpha.0

bin/purgecss.js

 #!/usr/bin/env node
-"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="4.1.3",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:[]};function S(e,t){const s=[];return e.replace(t,(function(){const t=arguments,r=Array.prototype.slice.call(t,0,-2);return r.input=t[t.length-1],r.index=t[t.length-2],s.push(r),e})),s}class w{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class k{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 w(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new w(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){S(e.value.value,/var\((.+?)[,)]/g).forEach((e=>{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 F={access:n.promisify(u.access),readFile:n.promisify(u.readFile)};function x(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 ${e.message}`);throw new Error}return{...b,...t,safelist:x(t.safelist)}}async function V(e,t){return new v(await t(e))}function j(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function C(e){return e.replace(/(^["'])|(["']$)/g,"")}function U(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function E(e,t){return t.hasId(e.value)}function R(e,t){return t.hasTag(e.value)}function N(e){return"atrule"===(null==e?void 0:e.type)}function O(e){return"rule"===(null==e?void 0:e.type)}class P{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new k,this.options=b}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=S(s,/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),r.length>0&&this.variablesStructure.addVariableUsage(e,r)):r.length>0&&this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=C(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(e,t){const s=new v([]);for(const r of e){let e=[];try{await F.access(r,u.constants.F_OK),e.push(r)}catch(t){e=l.sync(r,{nodir:!0,ignore:this.options.skippedContentGlobs})}for(const r of e){const e=await F.readFile(r,"utf-8"),o=this.getFileExtractor(r,t),i=await V(e,o);s.merge(i)}}return s}async extractSelectorsFromString(e,t){const s=new v([]);for(const{raw:r,extension:o}of e){const e=this.getFileExtractor(`.${o}`,t),i=await V(r,e);s.merge(i)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:C(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&j(s,"next"))return void s.remove();if(e.parent&&N(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!O(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const o=[];if(e.selector=h.default((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&o.push(e.toString()),e.remove()))}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const i=e.parent;if(e.selector||e.remove(),function(e){return!!(O(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||N(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(i)&&(null==i||i.remove()),this.options.rejectedCss&&o.length>0){const t=e.clone(),s=null==i?void 0:i.clone().removeAll().append(t);t.selectors=o;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,t){var s;const r=[],o=[];for(const t of e)"string"==typeof t?o.push(...l.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs})):o.push(t);for(const e of o){const o="string"==typeof e?this.options.stdin?e:await F.readFile(e,"utf-8"):e.raw,i="string"==typeof e&&!this.options.stdin,n=f.parse(o,{from:i?e:void 0});this.walkThroughCSS(n,t),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const a=n.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),c={css:a.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(c.sourceMap=null===(s=a.map)||void 0===s?void 0:s.toString()),this.options.rejected&&(c.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(c.rejectedCss=f.root({nodes:this.removedNodes}).toString()),r.push(c)}return r}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return y.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await A(e):{...b,...e,safelist:x(e.safelist)};const{content:t,css:s,extractors:r,safelist:o}=this.options;this.options.variables&&(this.variablesStructure.safelist=o.variables||[]);const i=t.filter((e=>"string"==typeof e)),n=t.filter((e=>"object"==typeof e)),a=await this.extractSelectorsFromFiles(i,r),c=await this.extractSelectorsFromString(n,r);return this.getPurgedCSS(s,function(...e){const t=new v([]);return e.forEach(t.merge,t),t}(a,c))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const o of e.nodes){const e=this.getSelectorValue(o);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(y.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(o.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(o.attribute)||U(o,t);break;case"class":r=o,s=t.hasClass(r.value);break;case"id":s=E(o,t);break;case"tag":s=R(o,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(j(e,"start")?(this.ignore=!0,e.remove()):j(e,"end")&&(this.ignore=!1,e.remove())))))}}async function M(e,t){try{await u.promises.writeFile(e,t)}catch(e){e instanceof Error&&console.error(e.message)}}async function q(e){const t=[];for await(const s of e)t.push(s);return Buffer.concat(t).toString("utf8")}function G(e){return e.description(m).version(p).usage("--css <css...> --content <content...> [options]"),e.option("-con, --content <files...>","glob of content files").option("-css, --css <files...>","glob of css files").option("-c, --config <path>","path to the configuration file").option("-o, --output <path>","file path directory to write purged css files to").option("-font, --font-face","option to remove unused font-faces").option("-keyframes, --keyframes","option to remove unused keyframes").option("-v, --variables","option to remove unused variables").option("-rejected, --rejected","option to output rejected selectors").option("-rejected-css, --rejected-css","option to output rejected css").option("-s, --safelist <list...>","list of classes that should not be removed").option("-b, --blocklist <list...>","list of selectors that should be removed").option("-k, --skippedContentGlobs <list...>","list of glob patterns for folders/files that should not be scanned"),e}async function W(e){const{config:t,css:s,content:r,output:o,fontFace:i,keyframes:n,variables:a,rejected:c,rejectedCss:u,safelist:l,blocklist:d,skippedContentGlobs:f}=e.opts();t||r&&s||e.help();let h=b;return t&&(h=await A(t)),r&&(1===r.length&&"-"===r[0]?h.content=[{raw:await q(process.stdin),extension:""}]:h.content=r),s&&(1===s.length&&"-"===s[0]?h.css=[{raw:await q(process.stdin)}]:h.css=s),i&&(h.fontFace=i),n&&(h.keyframes=n),c&&(h.rejected=c),u&&(h.rejectedCss=u),a&&(h.variables=a),l&&(h.safelist=x(l)),d&&(h.blocklist=d),f&&(h.skippedContentGlobs=f),o&&(h.output=o),h}async function D(e){var t;const s=await W(e),r=await(new P).purge(s);if(s.output){if(1===r.length&&s.output.endsWith(".css"))return void await M(s.output,r[0].css);for(const e of r){const r=null===(t=null==e?void 0:e.file)||void 0===t?void 0:t.split("/").pop();await M(`${s.output}/${r}`,e.css)}}else console.log(JSON.stringify(r))}async function K(){try{const t=G(new e.Command);t.parse(process.argv),D(t)}catch(e){e instanceof Error&&console.error(e.message),process.exit(1)}}exports.getOptions=W,exports.main=K,exports.parseCommandOptions=G,exports.run=D,K();
+"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 ${e.message}`);throw new Error}return{...b,...t,safelist:F(t.safelist)}}async function x(e,t){return new v(await t(e))}function V(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function j(e){return e.replace(/(^["'])|(["']$)/g,"")}function C(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function U(e,t){return t.hasId(e.value)}function E(e,t){return t.hasTag(e.value)}function R(e){return"atrule"===(null==e?void 0:e.type)}function N(e){return"rule"===(null==e?void 0:e.type)}class O{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new w,this.options=b}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=s.matchAll(/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),this.variablesStructure.addVariableUsage(e,r)):this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=j(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(e,t){const s=new v([]),r=[];for(const t of e)try{await k.access(t,u.constants.F_OK),r.push(t)}catch(e){r.push(...l.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs}))}0===r.length&&console.warn("No files found from the passed PurgeCSS option 'content'.");for(const e of r){const r=await k.readFile(e,"utf-8"),o=this.getFileExtractor(e,t),i=await x(r,o);s.merge(i)}return s}async extractSelectorsFromString(e,t){const s=new v([]);for(const{raw:r,extension:o}of e){const e=this.getFileExtractor(`.${o}`,t),i=await x(r,e);s.merge(i)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:j(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&V(s,"next"))return void s.remove();if(e.parent&&R(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!N(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const o=[];if(e.selector=h.default((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&o.push(e.toString()),e.remove()))})),e.walk((e=>{"selector"===e.type&&e.toString()&&/(:where$)|(:is$)|(:where[^(])|(:is[^(])/.test(e.toString())&&e.remove()}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const i=e.parent;if(e.selector||e.remove(),function(e){return!!(N(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||R(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(i)&&(null==i||i.remove()),this.options.rejectedCss&&o.length>0){const t=e.clone(),s=null==i?void 0:i.clone().removeAll().append(t);t.selectors=o;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,t){var s;const r=[],o=[];for(const t of e)"string"==typeof t?o.push(...l.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs})):o.push(t);for(const e of o){const o="string"==typeof e?this.options.stdin?e:await k.readFile(e,"utf-8"):e.raw,i="string"==typeof e&&!this.options.stdin,n=f.parse(o,{from:i?e:void 0});this.walkThroughCSS(n,t),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const a=n.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),c={css:a.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(c.sourceMap=null===(s=a.map)||void 0===s?void 0:s.toString()),this.options.rejected&&(c.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(c.rejectedCss=f.root({nodes:this.removedNodes}).toString()),r.push(c)}return r}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return y.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await A(e):{...b,...e,safelist:F(e.safelist)};const{content:t,css:s,extractors:r,safelist:o}=this.options;this.options.variables&&(this.variablesStructure.safelist=o.variables||[]);const i=t.filter((e=>"string"==typeof e)),n=t.filter((e=>"object"==typeof e)),a=await this.extractSelectorsFromFiles(i,r),c=await this.extractSelectorsFromString(n,r);return this.getPurgedCSS(s,function(...e){const t=new v([]);return e.forEach(t.merge,t),t}(a,c))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e)&&!function(e){return e.parent&&"pseudo"===e.parent.type&&(":where"===e.parent.value||":is"===e.parent.value)||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const o of e.nodes){const e=this.getSelectorValue(o);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(y.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(o.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(o.attribute)||C(o,t);break;case"class":r=o,s=t.hasClass(r.value);break;case"id":s=U(o,t);break;case"tag":s=E(o,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(V(e,"start")?(this.ignore=!0,e.remove()):V(e,"end")&&(this.ignore=!1,e.remove())))))}}async function P(e,t){try{await u.promises.writeFile(e,t)}catch(e){e instanceof Error&&console.error(e.message)}}async function M(e){const t=[];for await(const s of e)t.push(s);return Buffer.concat(t).toString("utf8")}function q(e){return e.description(m).version(p).usage("--css <css...> --content <content...> [options]"),e.option("-con, --content <files...>","glob of content files").option("-css, --css <files...>","glob of css files").option("-c, --config <path>","path to the configuration file").option("-o, --output <path>","file path directory to write purged css files to").option("-font, --font-face","option to remove unused font-faces").option("-keyframes, --keyframes","option to remove unused keyframes").option("-v, --variables","option to remove unused variables").option("-rejected, --rejected","option to output rejected selectors").option("-rejected-css, --rejected-css","option to output rejected css").option("-s, --safelist <list...>","list of classes that should not be removed").option("-b, --blocklist <list...>","list of selectors that should be removed").option("-k, --skippedContentGlobs <list...>","list of glob patterns for folders/files that should not be scanned"),e}async function G(e){const{config:t,css:s,content:r,output:o,fontFace:i,keyframes:n,variables:a,rejected:c,rejectedCss:u,safelist:l,blocklist:d,skippedContentGlobs:f}=e.opts();t||r&&s||e.help();let h=b;return t&&(h=await A(t)),r&&(1===r.length&&"-"===r[0]?h.content=[{raw:await M(process.stdin),extension:""}]:h.content=r),s&&(1===s.length&&"-"===s[0]?h.css=[{raw:await M(process.stdin)}]:h.css=s),i&&(h.fontFace=i),n&&(h.keyframes=n),c&&(h.rejected=c),u&&(h.rejectedCss=u),a&&(h.variables=a),l&&(h.safelist=F(l)),d&&(h.blocklist=d),f&&(h.skippedContentGlobs=f),o&&(h.output=o),h}async function W(e){var t;const s=await G(e),r=await(new O).purge(s);if(s.output){if(1===r.length&&s.output.endsWith(".css"))return void await P(s.output,r[0].css);for(const e of r){const r=null===(t=null==e?void 0:e.file)||void 0===t?void 0:t.split("/").pop();await P(`${s.output}/${r}`,e.css)}}else console.log(JSON.stringify(r))}async function $(){try{const t=q(new e.Command);t.parse(process.argv),W(t)}catch(e){e instanceof Error&&console.error(e.message),process.exit(1)}}exports.getOptions=G,exports.main=$,exports.parseCommandOptions=q,exports.run=W,$();

lib/purgecss.d.ts

@@ -447,37 +447,37 @@ /**
 export declare interface UserDefinedOptions {
-    /** {@inheritDoc Options.content} */
+    /** {@inheritDoc purgecss#Options.content} */
     content: Array<string | RawContent>;
-    /** {@inheritDoc Options.css} */
+    /** {@inheritDoc purgecss#Options.css} */
     css: Array<string | RawCSS>;
-    /** {@inheritDoc Options.defaultExtractor} */
+    /** {@inheritDoc purgecss#Options.defaultExtractor} */
     defaultExtractor?: ExtractorFunction;
-    /** {@inheritDoc Options.extractors} */
+    /** {@inheritDoc purgecss#Options.extractors} */
     extractors?: Array<Extractors>;
-    /** {@inheritDoc Options.fontFace} */
+    /** {@inheritDoc purgecss#Options.fontFace} */
     fontFace?: boolean;
-    /** {@inheritDoc Options.keyframes} */
+    /** {@inheritDoc purgecss#Options.keyframes} */
     keyframes?: boolean;
-    /** {@inheritDoc Options.output} */
+    /** {@inheritDoc purgecss#Options.output} */
     output?: string;
-    /** {@inheritDoc Options.rejected} */
+    /** {@inheritDoc purgecss#Options.rejected} */
     rejected?: boolean;
-    /** {@inheritDoc Options.rejectedCss} */
+    /** {@inheritDoc purgecss#Options.rejectedCss} */
     rejectedCss?: boolean;
-    /** {@inheritDoc Options.sourceMap } */
+    /** {@inheritDoc purgecss#Options.sourceMap } */
     sourceMap?: boolean | (postcss.SourceMapOptions & {
         to?: string;
     });
-    /** {@inheritDoc Options.stdin} */
+    /** {@inheritDoc purgecss#Options.stdin} */
     stdin?: boolean;
-    /** {@inheritDoc Options.stdout} */
+    /** {@inheritDoc purgecss#Options.stdout} */
     stdout?: boolean;
-    /** {@inheritDoc Options.variables} */
+    /** {@inheritDoc purgecss#Options.variables} */
     variables?: boolean;
-    /** {@inheritDoc Options.safelist} */
+    /** {@inheritDoc purgecss#Options.safelist} */
     safelist?: UserDefinedSafelist;
-    /** {@inheritDoc Options.blocklist} */
+    /** {@inheritDoc purgecss#Options.blocklist} */
     blocklist?: StringRegExpArray;
-    /** {@inheritDoc Options.skippedContentGlobs} */
+    /** {@inheritDoc purgecss#Options.skippedContentGlobs} */
     skippedContentGlobs?: Array<string>;
-    /** {@inheritDoc Options.dynamicAttributes} */
+    /** {@inheritDoc purgecss#Options.dynamicAttributes} */
     dynamicAttributes?: string[];
@@ -491,3 +491,6 @@ }
 
-declare class VariableNode {
+/**
+ * @public
+ */
+export declare class VariableNode {
     nodes: VariableNode[];
@@ -499,3 +502,6 @@ value: postcss.Declaration;
 
-declare class VariablesStructure {
+/**
+ * @public
+ */
+export declare class VariablesStructure {
     nodes: Map<string, VariableNode[]>;
@@ -505,4 +511,4 @@ usedVariables: Set<string>;
     addVariable(declaration: postcss.Declaration): void;
-    addVariableUsage(declaration: postcss.Declaration, matchedVariables: RegExpMatchArray[]): void;
-    addVariableUsageInProperties(matchedVariables: RegExpMatchArray[]): void;
+    addVariableUsage(declaration: postcss.Declaration, matchedVariables: IterableIterator<RegExpMatchArray>): void;
+    addVariableUsageInProperties(matchedVariables: IterableIterator<RegExpMatchArray>): void;
     setAsUsed(variableName: string): void;
@@ -509,0 +515,0 @@ removeUnused(): void;

lib/purgecss.esm.js

@@ -1,1 +0,1 @@
-import*as e from"fs";import*as t from"glob";import*as s from"path";import*as r from"postcss";import o from"postcss-selector-parser";import{promisify as i}from"util";function a(e,t){t&&t.forEach(e.add,e)}class ExtractorResultSets{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)?a(this.undetermined,e):e instanceof ExtractorResultSets?(a(this.undetermined,e.undetermined),a(this.attrNames,e.attrNames),a(this.attrValues,e.attrValues),a(this.classes,e.classes),a(this.ids,e.ids),a(this.tags,e.tags)):(a(this.undetermined,e.undetermined),e.attributes&&(a(this.attrNames,e.attributes.names),a(this.attrValues,e.attributes.values)),a(this.classes,e.classes),a(this.ids,e.ids),a(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 n=["*",":root",":after",":before"],c={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:[]};function l(e,t){const s=[];return e.replace(t,(function(){const t=arguments,r=Array.prototype.slice.call(t,0,-2);return r.input=t[t.length-1],r.index=t[t.length-2],s.push(r),e})),s}class VariableNode{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class VariablesStructure{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 VariableNode(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new VariableNode(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){l(e.value.value,/var\((.+?)[,)]/g).forEach((e=>{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 u={access:i(e.access),readFile:i(e.readFile)};function d(e=[]){return Array.isArray(e)?{...c.safelist,standard:e}:{...c.safelist,...e}}async function h(e="purgecss.config.js"){let t;try{const r=s.resolve(process.cwd(),e);t=await import(r)}catch(e){if(e instanceof Error)throw new Error(`Error loading the config file ${e.message}`);throw new Error}return{...c,...t,safelist:d(t.safelist)}}async function f(e,t){return new ExtractorResultSets(await t(e))}function p(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function m(...e){const t=new ExtractorResultSets([]);return e.forEach(t.merge,t),t}function g(e){return e.replace(/(^["'])|(["']$)/g,"")}function v(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function S(e,t){return t.hasId(e.value)}function y(e,t){return t.hasTag(e.value)}function b(e){return"atrule"===(null==e?void 0:e.type)}function w(e){return"rule"===(null==e?void 0:e.type)}class PurgeCSS{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new VariablesStructure,this.options=c}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=l(s,/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),r.length>0&&this.variablesStructure.addVariableUsage(e,r)):r.length>0&&this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=g(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(s,r){const o=new ExtractorResultSets([]);for(const i of s){let s=[];try{await u.access(i,e.constants.F_OK),s.push(i)}catch(e){s=t.sync(i,{nodir:!0,ignore:this.options.skippedContentGlobs})}for(const e of s){const t=await u.readFile(e,"utf-8"),s=this.getFileExtractor(e,r),i=await f(t,s);o.merge(i)}}return o}async extractSelectorsFromString(e,t){const s=new ExtractorResultSets([]);for(const{raw:r,extension:o}of e){const e=this.getFileExtractor(`.${o}`,t),i=await f(r,e);s.merge(i)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:g(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&p(s,"next"))return void s.remove();if(e.parent&&b(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!w(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const i=[];if(e.selector=o((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&i.push(e.toString()),e.remove()))}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const a=e.parent;if(e.selector||e.remove(),function(e){return!!(w(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||b(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(a)&&(null==a||a.remove()),this.options.rejectedCss&&i.length>0){const t=e.clone(),s=null==a?void 0:a.clone().removeAll().append(t);t.selectors=i;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,s){var o;const i=[],a=[];for(const s of e)"string"==typeof s?a.push(...t.sync(s,{nodir:!0,ignore:this.options.skippedContentGlobs})):a.push(s);for(const e of a){const t="string"==typeof e?this.options.stdin?e:await u.readFile(e,"utf-8"):e.raw,a="string"==typeof e&&!this.options.stdin,n=r.parse(t,{from:a?e:void 0});this.walkThroughCSS(n,s),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const c=n.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),l={css:c.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(l.sourceMap=null===(o=c.map)||void 0===o?void 0:o.toString()),this.options.rejected&&(l.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(l.rejectedCss=r.root({nodes:this.removedNodes}).toString()),i.push(l)}return i}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return n.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await h(e):{...c,...e,safelist:d(e.safelist)};const{content:t,css:s,extractors:r,safelist:o}=this.options;this.options.variables&&(this.variablesStructure.safelist=o.variables||[]);const i=t.filter((e=>"string"==typeof e)),a=t.filter((e=>"object"==typeof e)),n=await this.extractSelectorsFromFiles(i,r),l=await this.extractSelectorsFromString(a,r);return this.getPurgedCSS(s,m(n,l))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const o of e.nodes){const e=this.getSelectorValue(o);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(n.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(o.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(o.attribute)||v(o,t);break;case"class":r=o,s=t.hasClass(r.value);break;case"id":s=S(o,t);break;case"tag":s=y(o,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(p(e,"start")?(this.ignore=!0,e.remove()):p(e,"end")&&(this.ignore=!1,e.remove())))))}}export{ExtractorResultSets,PurgeCSS,c as defaultOptions,m as mergeExtractorSelectors,h as setOptions,d as standardizeSafelist};
+import*as e from"fs";import*as t from"glob";import*as s from"path";import*as r from"postcss";import o from"postcss-selector-parser";import{promisify as i}from"util";function a(e,t){t&&t.forEach(e.add,e)}class ExtractorResultSets{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)?a(this.undetermined,e):e instanceof ExtractorResultSets?(a(this.undetermined,e.undetermined),a(this.attrNames,e.attrNames),a(this.attrValues,e.attrValues),a(this.classes,e.classes),a(this.ids,e.ids),a(this.tags,e.tags)):(a(this.undetermined,e.undetermined),e.attributes&&(a(this.attrNames,e.attributes.names),a(this.attrValues,e.attributes.values)),a(this.classes,e.classes),a(this.ids,e.ids),a(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 n=["*",":root",":after",":before"],c={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 VariableNode{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class VariablesStructure{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 VariableNode(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new VariableNode(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 l={access:i(e.access),readFile:i(e.readFile)};function u(e=[]){return Array.isArray(e)?{...c.safelist,standard:e}:{...c.safelist,...e}}async function d(e="purgecss.config.js"){let t;try{const r=s.resolve(process.cwd(),e);t=await import(r)}catch(e){if(e instanceof Error)throw new Error(`Error loading the config file ${e.message}`);throw new Error}return{...c,...t,safelist:u(t.safelist)}}async function h(e,t){return new ExtractorResultSets(await t(e))}function f(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function p(...e){const t=new ExtractorResultSets([]);return e.forEach(t.merge,t),t}function m(e){return e.replace(/(^["'])|(["']$)/g,"")}function g(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function S(e,t){return t.hasId(e.value)}function v(e,t){return t.hasTag(e.value)}function y(e){return"atrule"===(null==e?void 0:e.type)}function b(e){return"rule"===(null==e?void 0:e.type)}class PurgeCSS{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new VariablesStructure,this.options=c}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=s.matchAll(/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),this.variablesStructure.addVariableUsage(e,r)):this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=m(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(s,r){const o=new ExtractorResultSets([]),i=[];for(const r of s)try{await l.access(r,e.constants.F_OK),i.push(r)}catch(e){i.push(...t.sync(r,{nodir:!0,ignore:this.options.skippedContentGlobs}))}0===i.length&&console.warn("No files found from the passed PurgeCSS option 'content'.");for(const e of i){const t=await l.readFile(e,"utf-8"),s=this.getFileExtractor(e,r),i=await h(t,s);o.merge(i)}return o}async extractSelectorsFromString(e,t){const s=new ExtractorResultSets([]);for(const{raw:r,extension:o}of e){const e=this.getFileExtractor(`.${o}`,t),i=await h(r,e);s.merge(i)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:m(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&f(s,"next"))return void s.remove();if(e.parent&&y(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!b(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const i=[];if(e.selector=o((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&i.push(e.toString()),e.remove()))})),e.walk((e=>{"selector"===e.type&&e.toString()&&/(:where$)|(:is$)|(:where[^(])|(:is[^(])/.test(e.toString())&&e.remove()}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const a=e.parent;if(e.selector||e.remove(),function(e){return!!(b(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||y(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(a)&&(null==a||a.remove()),this.options.rejectedCss&&i.length>0){const t=e.clone(),s=null==a?void 0:a.clone().removeAll().append(t);t.selectors=i;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,s){var o;const i=[],a=[];for(const s of e)"string"==typeof s?a.push(...t.sync(s,{nodir:!0,ignore:this.options.skippedContentGlobs})):a.push(s);for(const e of a){const t="string"==typeof e?this.options.stdin?e:await l.readFile(e,"utf-8"):e.raw,a="string"==typeof e&&!this.options.stdin,n=r.parse(t,{from:a?e:void 0});this.walkThroughCSS(n,s),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const c=n.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),u={css:c.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(u.sourceMap=null===(o=c.map)||void 0===o?void 0:o.toString()),this.options.rejected&&(u.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(u.rejectedCss=r.root({nodes:this.removedNodes}).toString()),i.push(u)}return i}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return n.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await d(e):{...c,...e,safelist:u(e.safelist)};const{content:t,css:s,extractors:r,safelist:o}=this.options;this.options.variables&&(this.variablesStructure.safelist=o.variables||[]);const i=t.filter((e=>"string"==typeof e)),a=t.filter((e=>"object"==typeof e)),n=await this.extractSelectorsFromFiles(i,r),l=await this.extractSelectorsFromString(a,r);return this.getPurgedCSS(s,p(n,l))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e)&&!function(e){return e.parent&&"pseudo"===e.parent.type&&(":where"===e.parent.value||":is"===e.parent.value)||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const o of e.nodes){const e=this.getSelectorValue(o);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(n.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(o.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(o.attribute)||g(o,t);break;case"class":r=o,s=t.hasClass(r.value);break;case"id":s=S(o,t);break;case"tag":s=v(o,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(f(e,"start")?(this.ignore=!0,e.remove()):f(e,"end")&&(this.ignore=!1,e.remove())))))}}export{ExtractorResultSets,PurgeCSS,VariableNode,VariablesStructure,c as defaultOptions,p as mergeExtractorSelectors,d as setOptions,u as standardizeSafelist};

lib/purgecss.js

@@ -1,1 +0,1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e=require("fs"),t=require("glob"),s=require("path"),r=require("postcss"),i=require("postcss-selector-parser"),o=require("util");function n(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}function a(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 c=a(e),u=a(t),l=a(s),d=a(r),h=n(i);function f(e,t){t&&t.forEach(e.add,e)}class ExtractorResultSets{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)?f(this.undetermined,e):e instanceof ExtractorResultSets?(f(this.undetermined,e.undetermined),f(this.attrNames,e.attrNames),f(this.attrValues,e.attrValues),f(this.classes,e.classes),f(this.ids,e.ids),f(this.tags,e.tags)):(f(this.undetermined,e.undetermined),e.attributes&&(f(this.attrNames,e.attributes.names),f(this.attrValues,e.attributes.values)),f(this.classes,e.classes),f(this.ids,e.ids),f(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 p=["*",":root",":after",":before"],m={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:[]};function g(e,t){const s=[];return e.replace(t,(function(){const t=arguments,r=Array.prototype.slice.call(t,0,-2);return r.input=t[t.length-1],r.index=t[t.length-2],s.push(r),e})),s}class VariableNode{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class VariablesStructure{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 VariableNode(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new VariableNode(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){g(e.value.value,/var\((.+?)[,)]/g).forEach((e=>{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 v={access:o.promisify(c.access),readFile:o.promisify(c.readFile)};function S(e=[]){return Array.isArray(e)?{...m.safelist,standard:e}:{...m.safelist,...e}}async function y(e="purgecss.config.js"){let t;try{const s=l.resolve(process.cwd(),e);t=await function(e){return Promise.resolve().then((function(){return a(require(e))}))}(s)}catch(e){if(e instanceof Error)throw new Error(`Error loading the config file ${e.message}`);throw new Error}return{...m,...t,safelist:S(t.safelist)}}async function b(e,t){return new ExtractorResultSets(await t(e))}function w(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function x(...e){const t=new ExtractorResultSets([]);return e.forEach(t.merge,t),t}function V(e){return e.replace(/(^["'])|(["']$)/g,"")}function A(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function F(e,t){return t.hasId(e.value)}function k(e,t){return t.hasTag(e.value)}function E(e){return"atrule"===(null==e?void 0:e.type)}function R(e){return"rule"===(null==e?void 0:e.type)}exports.ExtractorResultSets=ExtractorResultSets,exports.PurgeCSS=class PurgeCSS{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new VariablesStructure,this.options=m}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=g(s,/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),r.length>0&&this.variablesStructure.addVariableUsage(e,r)):r.length>0&&this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=V(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(e,t){const s=new ExtractorResultSets([]);for(const r of e){let e=[];try{await v.access(r,c.constants.F_OK),e.push(r)}catch(t){e=u.sync(r,{nodir:!0,ignore:this.options.skippedContentGlobs})}for(const r of e){const e=await v.readFile(r,"utf-8"),i=this.getFileExtractor(r,t),o=await b(e,i);s.merge(o)}}return s}async extractSelectorsFromString(e,t){const s=new ExtractorResultSets([]);for(const{raw:r,extension:i}of e){const e=this.getFileExtractor(`.${i}`,t),o=await b(r,e);s.merge(o)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:V(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&w(s,"next"))return void s.remove();if(e.parent&&E(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!R(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const i=[];if(e.selector=h.default((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&i.push(e.toString()),e.remove()))}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const o=e.parent;if(e.selector||e.remove(),function(e){return!!(R(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||E(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(o)&&(null==o||o.remove()),this.options.rejectedCss&&i.length>0){const t=e.clone(),s=null==o?void 0:o.clone().removeAll().append(t);t.selectors=i;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,t){var s;const r=[],i=[];for(const t of e)"string"==typeof t?i.push(...u.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs})):i.push(t);for(const e of i){const i="string"==typeof e?this.options.stdin?e:await v.readFile(e,"utf-8"):e.raw,o="string"==typeof e&&!this.options.stdin,n=d.parse(i,{from:o?e:void 0});this.walkThroughCSS(n,t),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const a=n.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),c={css:a.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(c.sourceMap=null===(s=a.map)||void 0===s?void 0:s.toString()),this.options.rejected&&(c.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(c.rejectedCss=d.root({nodes:this.removedNodes}).toString()),r.push(c)}return r}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return p.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await y(e):{...m,...e,safelist:S(e.safelist)};const{content:t,css:s,extractors:r,safelist:i}=this.options;this.options.variables&&(this.variablesStructure.safelist=i.variables||[]);const o=t.filter((e=>"string"==typeof e)),n=t.filter((e=>"object"==typeof e)),a=await this.extractSelectorsFromFiles(o,r),c=await this.extractSelectorsFromString(n,r);return this.getPurgedCSS(s,x(a,c))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const i of e.nodes){const e=this.getSelectorValue(i);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(p.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(i.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(i.attribute)||A(i,t);break;case"class":r=i,s=t.hasClass(r.value);break;case"id":s=F(i,t);break;case"tag":s=k(i,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(w(e,"start")?(this.ignore=!0,e.remove()):w(e,"end")&&(this.ignore=!1,e.remove())))))}},exports.defaultOptions=m,exports.mergeExtractorSelectors=x,exports.setOptions=y,exports.standardizeSafelist=S;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e=require("fs"),t=require("glob"),s=require("path"),r=require("postcss"),o=require("postcss-selector-parser"),i=require("util");function a(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}function n(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 c=n(e),u=n(t),l=n(s),d=n(r),h=a(o);function f(e,t){t&&t.forEach(e.add,e)}class ExtractorResultSets{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)?f(this.undetermined,e):e instanceof ExtractorResultSets?(f(this.undetermined,e.undetermined),f(this.attrNames,e.attrNames),f(this.attrValues,e.attrValues),f(this.classes,e.classes),f(this.ids,e.ids),f(this.tags,e.tags)):(f(this.undetermined,e.undetermined),e.attributes&&(f(this.attrNames,e.attributes.names),f(this.attrValues,e.attributes.values)),f(this.classes,e.classes),f(this.ids,e.ids),f(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 p=["*",":root",":after",":before"],m={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 VariableNode{constructor(e){this.nodes=[],this.isUsed=!1,this.value=e}}class VariablesStructure{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 VariableNode(e),r=this.nodes.get(t)||[];this.nodes.set(t,[...r,s])}else{const s=new VariableNode(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 g={access:i.promisify(c.access),readFile:i.promisify(c.readFile)};function v(e=[]){return Array.isArray(e)?{...m.safelist,standard:e}:{...m.safelist,...e}}async function S(e="purgecss.config.js"){let t;try{const s=l.resolve(process.cwd(),e);t=await function(e){return Promise.resolve().then((function(){return n(require(e))}))}(s)}catch(e){if(e instanceof Error)throw new Error(`Error loading the config file ${e.message}`);throw new Error}return{...m,...t,safelist:v(t.safelist)}}async function y(e,t){return new ExtractorResultSets(await t(e))}function b(e,t){switch(t){case"next":return e.text.includes("purgecss ignore");case"start":return e.text.includes("purgecss start ignore");case"end":return e.text.includes("purgecss end ignore")}}function w(...e){const t=new ExtractorResultSets([]);return e.forEach(t.merge,t),t}function x(e){return e.replace(/(^["'])|(["']$)/g,"")}function V(e,t){if(!t.hasAttrName(e.attribute))return!1;if(void 0===e.value)return!0;switch(e.operator){case"$=":return t.hasAttrSuffix(e.value);case"~=":case"*=":return t.hasAttrSubstr(e.value);case"=":return t.hasAttrValue(e.value);case"|=":case"^=":return t.hasAttrPrefix(e.value);default:return!0}}function A(e,t){return t.hasId(e.value)}function F(e,t){return t.hasTag(e.value)}function k(e){return"atrule"===(null==e?void 0:e.type)}function E(e){return"rule"===(null==e?void 0:e.type)}exports.ExtractorResultSets=ExtractorResultSets,exports.PurgeCSS=class PurgeCSS{constructor(){this.ignore=!1,this.atRules={fontFace:[],keyframes:[]},this.usedAnimations=new Set,this.usedFontFaces=new Set,this.selectorsRemoved=new Set,this.removedNodes=[],this.variablesStructure=new VariablesStructure,this.options=m}collectDeclarationsData(e){const{prop:t,value:s}=e;if(this.options.variables){const r=s.matchAll(/var\((.+?)[,)]/g);t.startsWith("--")?(this.variablesStructure.addVariable(e),this.variablesStructure.addVariableUsage(e,r)):this.variablesStructure.addVariableUsageInProperties(r)}if(!this.options.keyframes||"animation"!==t&&"animation-name"!==t)if(this.options.fontFace){if("font-family"===t)for(const e of s.split(",")){const t=x(e.trim());this.usedFontFaces.add(t)}}else;else for(const e of s.split(/[\s,]+/))this.usedAnimations.add(e)}getFileExtractor(e,t){const s=t.find((t=>t.extensions.find((t=>e.endsWith(t)))));return void 0===s?this.options.defaultExtractor:s.extractor}async extractSelectorsFromFiles(e,t){const s=new ExtractorResultSets([]),r=[];for(const t of e)try{await g.access(t,c.constants.F_OK),r.push(t)}catch(e){r.push(...u.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs}))}0===r.length&&console.warn("No files found from the passed PurgeCSS option 'content'.");for(const e of r){const r=await g.readFile(e,"utf-8"),o=this.getFileExtractor(e,t),i=await y(r,o);s.merge(i)}return s}async extractSelectorsFromString(e,t){const s=new ExtractorResultSets([]);for(const{raw:r,extension:o}of e){const e=this.getFileExtractor(`.${o}`,t),i=await y(r,e);s.merge(i)}return s}evaluateAtRule(e){if(this.options.keyframes&&e.name.endsWith("keyframes"))this.atRules.keyframes.push(e);else if(this.options.fontFace&&"font-face"===e.name&&e.nodes)for(const t of e.nodes)"decl"===t.type&&"font-family"===t.prop&&this.atRules.fontFace.push({name:x(t.value),node:e})}evaluateRule(e,t){if(this.ignore)return;const s=e.prev();if(function(e){return"comment"===(null==e?void 0:e.type)}(s)&&b(s,"next"))return void s.remove();if(e.parent&&k(e.parent)&&e.parent.name.endsWith("keyframes"))return;if(!E(e))return;if(function(e){let t=!1;return e.walkComments((e=>{e&&"comment"===e.type&&e.text.includes("purgecss ignore current")&&(t=!0,e.remove())})),t}(e))return;let r=!0;const o=[];if(e.selector=h.default((e=>{e.walk((e=>{"selector"===e.type&&(r=this.shouldKeepSelector(e,t),r||(this.options.rejected&&this.selectorsRemoved.add(e.toString()),this.options.rejectedCss&&o.push(e.toString()),e.remove()))})),e.walk((e=>{"selector"===e.type&&e.toString()&&/(:where$)|(:is$)|(:where[^(])|(:is[^(])/.test(e.toString())&&e.remove()}))})).processSync(e.selector),r&&void 0!==e.nodes)for(const t of e.nodes)"decl"===t.type&&this.collectDeclarationsData(t);const i=e.parent;if(e.selector||e.remove(),function(e){return!!(E(e)&&!e.selector||(null==e?void 0:e.nodes)&&!e.nodes.length||k(e)&&(!e.nodes&&!e.params||!e.params&&e.nodes&&!e.nodes.length))}(i)&&(null==i||i.remove()),this.options.rejectedCss&&o.length>0){const t=e.clone(),s=null==i?void 0:i.clone().removeAll().append(t);t.selectors=o;const r=s||t;this.removedNodes.push(r)}}async getPurgedCSS(e,t){var s;const r=[],o=[];for(const t of e)"string"==typeof t?o.push(...u.sync(t,{nodir:!0,ignore:this.options.skippedContentGlobs})):o.push(t);for(const e of o){const o="string"==typeof e?this.options.stdin?e:await g.readFile(e,"utf-8"):e.raw,i="string"==typeof e&&!this.options.stdin,a=d.parse(o,{from:i?e:void 0});this.walkThroughCSS(a,t),this.options.fontFace&&this.removeUnusedFontFaces(),this.options.keyframes&&this.removeUnusedKeyframes(),this.options.variables&&this.removeUnusedCSSVariables();const n=a.toResult({map:this.options.sourceMap,to:"object"==typeof this.options.sourceMap?this.options.sourceMap.to:void 0}),c={css:n.toString(),file:"string"==typeof e?e:e.name};this.options.sourceMap&&(c.sourceMap=null===(s=n.map)||void 0===s?void 0:s.toString()),this.options.rejected&&(c.rejected=Array.from(this.selectorsRemoved),this.selectorsRemoved.clear()),this.options.rejectedCss&&(c.rejectedCss=d.root({nodes:this.removedNodes}).toString()),r.push(c)}return r}isKeyframesSafelisted(e){return this.options.safelist.keyframes.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorBlocklisted(e){return this.options.blocklist.some((t=>"string"==typeof t?t===e:t.test(e)))}isSelectorSafelisted(e){const t=this.options.safelist.standard.some((t=>"string"==typeof t?t===e:t.test(e))),s=/^::.*/.test(e);return p.includes(e)||s||t}isSelectorSafelistedDeep(e){return this.options.safelist.deep.some((t=>t.test(e)))}isSelectorSafelistedGreedy(e){return this.options.safelist.greedy.some((t=>t.test(e)))}async purge(e){this.options="object"!=typeof e?await S(e):{...m,...e,safelist:v(e.safelist)};const{content:t,css:s,extractors:r,safelist:o}=this.options;this.options.variables&&(this.variablesStructure.safelist=o.variables||[]);const i=t.filter((e=>"string"==typeof e)),a=t.filter((e=>"object"==typeof e)),n=await this.extractSelectorsFromFiles(i,r),c=await this.extractSelectorsFromString(a,r);return this.getPurgedCSS(s,w(n,c))}removeUnusedCSSVariables(){this.variablesStructure.removeUnused()}removeUnusedFontFaces(){for(const{name:e,node:t}of this.atRules.fontFace)this.usedFontFaces.has(e)||t.remove()}removeUnusedKeyframes(){for(const e of this.atRules.keyframes)this.usedAnimations.has(e.params)||this.isKeyframesSafelisted(e.params)||e.remove()}getSelectorValue(e){return"attribute"===e.type&&e.attribute||e.value}shouldKeepSelector(e,t){if(function(e){return e.parent&&"pseudo"===e.parent.type&&e.parent.value.startsWith(":")||!1}(e)&&!function(e){return e.parent&&"pseudo"===e.parent.type&&(":where"===e.parent.value||":is"===e.parent.value)||!1}(e))return!0;if(this.options.safelist.greedy.length>0){if(e.nodes.map(this.getSelectorValue).some((e=>e&&this.isSelectorSafelistedGreedy(e))))return!0}let s=!1;for(const o of e.nodes){const e=this.getSelectorValue(o);if(e&&this.isSelectorSafelistedDeep(e))return!0;if(e&&(p.includes(e)||this.isSelectorSafelisted(e)))s=!0;else{if(e&&this.isSelectorBlocklisted(e))return!1;switch(o.type){case"attribute":s=!![...this.options.dynamicAttributes,"value","checked","selected","open"].includes(o.attribute)||V(o,t);break;case"class":r=o,s=t.hasClass(r.value);break;case"id":s=A(o,t);break;case"tag":s=F(o,t);break;default:continue}if(!s)return!1}}var r;return s}walkThroughCSS(e,t){e.walk((e=>"rule"===e.type?this.evaluateRule(e,t):"atrule"===e.type?this.evaluateAtRule(e):void("comment"===e.type&&(b(e,"start")?(this.ignore=!0,e.remove()):b(e,"end")&&(this.ignore=!1,e.remove())))))}},exports.VariableNode=VariableNode,exports.VariablesStructure=VariablesStructure,exports.defaultOptions=m,exports.mergeExtractorSelectors=w,exports.setOptions=S,exports.standardizeSafelist=v;

package.json

 {
   "name": "purgecss",
-  "version": "5.0.0",
+  "version": "6.0.0-alpha.0",
   "description": "Remove unused css selectors",
@@ -43,3 +43,3 @@ "author": "Ffloriel",
   "dependencies": {
-    "commander": "^9.0.0",
+    "commander": "^10.0.0",
     "glob": "^8.0.3",
@@ -50,3 +50,3 @@ "postcss": "^8.4.4",
   "devDependencies": {
-    "@types/glob": "^7.2.0"
+    "@types/glob": "^8.0.0"
   },
@@ -59,3 +59,4 @@ "bugs": {
     "registry": "https://registry.npmjs.org/"
-  }
+  },
+  "gitHead": "152ccba46e781902f302b7adca1788a6909e9569"
 }

README.md

@@ -22,3 +22,2 @@ # PurgeCSS
 [<img src="https://avatars0.githubusercontent.com/u/67109815?v=4" height="85" style="margin-right: 10px">](https://tailwindcss.com)
-[<img src="https://avatars.githubusercontent.com/u/6852555?&v=4" height="85">](https://vertistudio.com/)
 
@@ -67,7 +66,7 @@ ## Documentation
 ```js
-import PurgeCSS from 'purgecss'
+import PurgeCSS from "purgecss";
 const purgeCSSResults = await new PurgeCSS().purge({
-  content: ['**/*.html'],
-  css: ['**/*.css']
-})
+  content: ["**/*.html"],
+  css: ["**/*.css"],
+});
 ```
@@ -74,0 +73,0 @@

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Found 1 instance in 1 package

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Package is not semver >=1. This means it is not stable and does not support ^ ranges.

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License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

56737

increased by3.34%

Number of package files

7

increased by16.67%

Lines of code

632

increased by1.28%

Number of medium supply chain risk alerts

0

decreased by-100%

Worsened metrics

Number of low quality alerts

3

increased by50%

Number of lines in readme file

85

decreased by-1.16%

Dependency changes

• + Addedcommander@10.0.1(transitive)

• - Removedcommander@9.5.0(transitive)

• Updatedcommander@^10.0.0