refactor(scripts): use ESLint class instead of CLIEngine class internally (#36)

Author: MichaelDeBoey

scripts/generate-browser-globals.js

@@ -6,7 +6,7 @@
 
 const fs = require("fs")
 const path = require("path")
-const { CLIEngine } = require("eslint")
+const { ESLint } = require("eslint")
 const { browser: originalGlobals } = require("globals")
 
 const targetFile = path.resolve(__dirname, "../lib/configs/_browser-globals.js")
@@ -33,16 +33,14 @@ for (const key of Object.keys(originalGlobals).sort()) {
     }
 }
 
-const linter = new CLIEngine({ fix: true })
+const linter = new ESLint({ fix: true })
 const rawCode = `/**
 * DON'T EDIT THIS FILE WHICH WAS GENERATED BY './scripts/generate-browser-globals.js'.
 */
 "use strict"
 
 module.exports = ${JSON.stringify(globals, null, 4)}
 `
-const code =
-    linter.executeOnText(rawCode, "_browser-globals.js").results[0].output ||
-    rawCode
-
-fs.writeFileSync(targetFile, code)
+linter
+    .lintText(rawCode, { filePath: targetFile })
+    .then(([{ output }]) => fs.writeFileSync(targetFile, output || rawCode))

scripts/generate-configs.js

@@ -6,7 +6,7 @@
 
 const fs = require("fs")
 const path = require("path")
-const { CLIEngine } = require("eslint")
+const { ESLint } = require("eslint")
 
 const targetFile = path.resolve(__dirname, "../lib/configs.js")
 
@@ -28,6 +28,5 @@ ${fs
 `
 )
 
-const linter = new CLIEngine({ fix: true })
-const result = linter.executeOnFiles([targetFile])
-CLIEngine.outputFixes(result)
+const linter = new ESLint({ fix: true })
+linter.lintFiles([targetFile]).then(([result]) => ESLint.outputFixes(result))

scripts/generate-rules.js

@@ -6,7 +6,7 @@
 
 const fs = require("fs")
 const path = require("path")
-const { CLIEngine } = require("eslint")
+const { ESLint } = require("eslint")
 
 const targetFile = path.resolve(__dirname, "../lib/rules.js")
 
@@ -34,6 +34,5 @@ ${fs
 `
 )
 
-const linter = new CLIEngine({ fix: true })
-const result = linter.executeOnFiles([targetFile])
-CLIEngine.outputFixes(result)
+const linter = new ESLint({ fix: true })
+linter.lintFiles([targetFile]).then(([result]) => ESLint.outputFixes(result))