update rollup config, new build, prettier

- update rollup config with the new naming
- new build with rollup
- npm run prettier

Author: Ffloriel

__tests__/purgecss.test.js

@@ -113,7 +113,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                output: () => { }
+                output: () => {}
             }).toThrow()
         })
     })
@@ -144,7 +144,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                extractors: () => { }
+                extractors: () => {}
             }).toThrow()
         })
     })
@@ -175,7 +175,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                whitelist: () => { }
+                whitelist: () => {}
             }).toThrow()
         })
     })
@@ -206,7 +206,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                stdout: () => { }
+                stdout: () => {}
             }).toThrow()
         })
     })
@@ -237,7 +237,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                info: () => { }
+                info: () => {}
             }).toThrow()
         })
     })
@@ -268,7 +268,7 @@ describe('initialize purgecss', () => {
             new Purgecss({
                 content: ['index.html'],
                 css: ['style.css'],
-                rejected: () => { }
+                rejected: () => {}
             }).toThrow()
         })
     })
@@ -653,4 +653,3 @@ describe('purge methods with files and legacy extractor', () => {
         })
     })
 })
-

__tests__/purgecssDefault.test.js

@@ -1,8 +1,6 @@
 import Purgecss from './../src/index'
 const root = './__tests__/test_examples/'
 
-
-
 describe('purge methods with files and default extractor', () => {
     it('purge correctly with default extractor', () => {
         const purgeCss = new Purgecss({
@@ -325,5 +323,4 @@ describe('purge methods with files and default extractor', () => {
             expect(result.includes('parent2')).toBe(false)
         })
     })
-
-})
+})

lib/purgecss.es.js

@@ -7,14 +7,14 @@ import uglify from "rollup-plugin-uglify"
 import { minify } from "uglify-es"
 
 export default {
-    entry: "src/index.js",
-    targets: [
+    input: "src/index.js",
+    output: [
         {
-            dest: "lib/purgecss.es.js",
+            file: "lib/purgecss.es.js",
             format: "es"
         },
         {
-            dest: "lib/purgecss.js",
+            file: "lib/purgecss.js",
             format: "cjs"
         }
     ],

lib/purgecss.js

@@ -43,8 +43,7 @@ class Purgecss {
      * @param {string} configFile Path of the config file
      */
     loadConfigFile(configFile: string) {
-        const pathConfig =
-            typeof configFile === 'undefined' ? CONFIG_FILENAME : configFile
+        const pathConfig = typeof configFile === 'undefined' ? CONFIG_FILENAME : configFile
         let options
         try {
             const t = path.resolve(process.cwd(), pathConfig)
@@ -61,10 +60,8 @@ class Purgecss {
      */
     checkOptions(options: Options) {
         if (typeof options !== 'object') throw new TypeError(ERROR_OPTIONS_TYPE)
-        if (!options.content || !options.content.length)
-            throw new Error(ERROR_MISSING_CONTENT)
-        if (!options.css || !options.css.length)
-            throw new Error(ERROR_MISSING_CSS)
+        if (!options.content || !options.content.length) throw new Error(ERROR_MISSING_CONTENT)
+        if (!options.css || !options.css.length) throw new Error(ERROR_MISSING_CSS)
         if (options.output && typeof options.output !== 'string')
             throw new TypeError(ERROR_OUTPUT_TYPE)
         if (options.extractors && !Array.isArray(options.extractors))
@@ -73,8 +70,7 @@ class Purgecss {
             throw new TypeError(ERROR_WHITELIST_TYPE)
         if (options.stdout && typeof options.stdout !== 'boolean')
             throw new TypeError(ERROR_STDOUT_TYPE)
-        if (options.info && typeof options.info !== 'boolean')
-            throw new TypeError(ERROR_INFO_TYPE)
+        if (options.info && typeof options.info !== 'boolean') throw new TypeError(ERROR_INFO_TYPE)
         if (options.rejected && typeof options.rejected !== 'boolean')
             throw new TypeError(ERROR_REJECTED_TYPE)
     }
@@ -84,16 +80,11 @@ class Purgecss {
      */
     purge() {
         // Get selectors from content files
-        let cssClasses = this.extractFileSelector(
-            this.options.content,
-            this.options.extractors
-        )
+        let cssClasses = this.extractFileSelector(this.options.content, this.options.extractors)
         // Get css selectors and remove unused ones
         let files = []
         for (let file of this.options.css) {
-            const cssContent = this.options.stdin
-                ? file
-                : fs.readFileSync(file, 'utf8')
+            const cssContent = this.options.stdin ? file : fs.readFileSync(file, 'utf8')
             files.push({
                 file,
                 css: this.getSelectorsCss(cssContent, cssClasses)
@@ -107,10 +98,7 @@ class Purgecss {
      * @param {array} files Array of files path or glob pattern 
      * @param {array} extractors Array of extractors
      */
-    extractFileSelector(
-        files: Array<string>,
-        extractors?: Array<ExtractorsObj>
-    ): Set<string> {
+    extractFileSelector(files: Array<string>, extractors?: Array<ExtractorsObj>): Set<string> {
         let selectors = new Set()
         for (let globfile of files) {
             let filesnames = []
@@ -122,10 +110,7 @@ class Purgecss {
             for (let file of filesnames) {
                 const content = fs.readFileSync(file, 'utf8')
                 const extractor = this.getFileExtractor(file, extractors)
-                selectors = new Set(
-                    ...selectors,
-                    this.extractSelectors(content, extractor)
-                )
+                selectors = new Set(...selectors, this.extractSelectors(content, extractor))
             }
         }
 
@@ -190,10 +175,7 @@ class Purgecss {
                             }
                         }
 
-                        let keepSelector = this.shouldKeepSelector(
-                            selectors,
-                            selectorsInRule
-                        )
+                        let keepSelector = this.shouldKeepSelector(selectors, selectorsInRule)
                         if (!keepSelector) {
                             selector.remove()
                         }
@@ -227,11 +209,9 @@ class Purgecss {
     isRuleEmpty(node: Object) {
         if (
             (node.type === 'decl' && !node.value) ||
-            ((node.type === 'rule' && !node.selector) ||
-                (node.nodes && !node.nodes.length)) ||
+            ((node.type === 'rule' && !node.selector) || (node.nodes && !node.nodes.length)) ||
             (node.type === 'atrule' &&
-                ((!node.nodes && !node.params) ||
-                    (!node.params && !node.nodes.length)))
+                ((!node.nodes && !node.params) || (!node.params && !node.nodes.length)))
         ) {
             return true
         }
@@ -243,10 +223,7 @@ class Purgecss {
      * @param {Set} selectorsInContent Set of css selectors found in the content files
      * @param {Array} selectorsInRule Array of selectors 
      */
-    shouldKeepSelector(
-        selectorsInContent: Set<string>,
-        selectorsInRule: Array<string>
-    ) {
+    shouldKeepSelector(selectorsInContent: Set<string>, selectorsInRule: Array<string>) {
         for (let selector of selectorsInRule) {
             // legacy
             if (this.options.legacy) {
@@ -258,16 +235,13 @@ class Purgecss {
                     keepSelector = true
                 }
                 if (keepSelector) return true
-                if (selectorsInContent.has(selector) || CSS_WHITELIST.includes(selector)) return true
-            }
-            // non legacy extractors
-            else {
+                if (selectorsInContent.has(selector) || CSS_WHITELIST.includes(selector))
+                    return true
+            } else {
+                // non legacy extractors
                 // pseudo class
                 if (selector.startsWith(':')) continue
-                if (
-                    !(selectorsInContent.has(selector) ||
-                        CSS_WHITELIST.includes(selector))
-                ) {
+                if (!(selectorsInContent.has(selector) || CSS_WHITELIST.includes(selector))) {
                     return false
                 }
             }