Adding conformance webpack plugin

packages/next/build/webpack/plugins/webpack-conformance-plugin/TestInterface.ts

@@ -5,8 +5,12 @@ export interface IConformanceAnomaly {
   stack_trace?: string
 }
 
+export enum IConformanceTestStatus {
+  SUCCESS,
+  FAILED,
+}
 export interface IConformanceTestResult {
-  result: 'SUCCESS' | 'FAILED'
+  result: IConformanceTestStatus
   warnings?: Array<IConformanceAnomaly>
   errors?: Array<IConformanceAnomaly>
 }

packages/next/build/webpack/plugins/webpack-conformance-plugin/checks/minification-conformance-check.ts

@@ -1,6 +1,7 @@
 import {
   IWebpackConformanceTest,
   IConformanceTestResult,
+  IConformanceTestStatus,
 } from '../TestInterface'
 import { CONFORMANCE_ERROR_PREFIX } from '../constants'
 
@@ -10,7 +11,7 @@ export class MinificationConformanceCheck implements IWebpackConformanceTest {
 
     if (options.optimization.minimize === false) {
       return {
-        result: 'FAILED',
+        result: IConformanceTestStatus.FAILED,
         errors: [
           {
             message: `${CONFORMANCE_ERROR_PREFIX}: Minification is disabled for this build.\nDisabling minification can result in serious performance degradation.`,
@@ -19,7 +20,7 @@ export class MinificationConformanceCheck implements IWebpackConformanceTest {
       }
     } else {
       return {
-        result: 'SUCCESS',
+        result: IConformanceTestStatus.SUCCESS,
       }
     }
   }

packages/next/build/webpack/plugins/webpack-conformance-plugin/constants.ts

@@ -1,4 +1,6 @@
-import { red, yellow } from 'kleur'
+import chalk from 'chalk'
+
+const { red, yellow } = chalk
 
 export const CONFORMANCE_ERROR_PREFIX: string = red('[BUILD CONFORMANCE ERROR]')
 export const CONFORMANCE_WARNING_PREFIX: string = yellow(

packages/next/build/webpack/plugins/webpack-conformance-plugin/index.ts

@@ -5,6 +5,7 @@ import {
   IConformanceAnomaly,
   IGetAstNodeResult,
   NodeInspector,
+  IConformanceTestStatus,
 } from './TestInterface'
 import { NodePath } from 'ast-types/lib/node-path'
 import { visit } from 'recast'
@@ -54,17 +55,12 @@ export default class WebpackConformancePlugin {
           return test.buildStared(this.compiler.options)
         }
         return {
-          result: 'SUCCESS',
+          result: IConformanceTestStatus.SUCCESS,
         } as IConformanceTestResult
       }
     )
 
-    Promise.all(buildStartedResults).then(
-      (results: Array<IConformanceTestResult>) => {
-        this.gatherResults(results)
-      }
-    )
-
+    this.gatherResults(buildStartedResults)
     callback()
   }
 
@@ -78,7 +74,7 @@ export default class WebpackConformancePlugin {
           return test.buildCompleted(compilation.assets)
         }
         return {
-          result: 'SUCCESS',
+          result: IConformanceTestStatus.SUCCESS,
         } as IConformanceTestResult
       }
     )