fix: skip matching rule with 'enforce'

backports #1680

Author: haoqunjiang

Diff for: lib/plugin-webpack5.js

@@ -38,6 +38,10 @@ class VueLoaderPlugin {
     let vueRules = []
 
     for (const rawRule of rules) {
+      // skip rules with 'enforce'. eg. rule for eslint-loader
+      if (rawRule.enforce) {
+        continue
+      }
       // skip the `include` check when locating the vue rule
       const clonedRawRule = Object.assign({}, rawRule)
       delete clonedRawRule.include

Diff for: test/advanced.spec.js

@@ -241,6 +241,20 @@ test('support rules with oneOf', async () => {
   })
 })
 
+test('should work with eslint loader', async () => {
+  // TODO:
+  return new Promise(resolve => {
+    bundle({
+      entry: 'basic.vue',
+      modify: config => {
+        config.module.rules.unshift({
+          test: /\.vue$/, loader: 'vue-loader', enforce: 'pre'
+        })
+      }
+    }, () => resolve())
+  })
+})
+
 // TODO
 // test('multiple rule definitions', done => {
 //   mockBundleAndRun({