Automatic merge of gitlab-org/gitlab-ce master

app/assets/javascripts/registry/components/app.vue

 <script>
 import { mapGetters, mapActions } from 'vuex';
-import { GlLoadingIcon } from '@gitlab/ui';
+import { GlLoadingIcon, GlEmptyState } from '@gitlab/ui';
 import store from '../stores';
 import clipboardButton from '../../vue_shared/components/clipboard_button.vue';
 import CollapsibleContainer from './collapsible_container.vue';
-import SvgMessage from './svg_message.vue';
 import { s__, sprintf } from '../../locale';
 
 export default {
@@ -12,8 +11,8 @@ export default {
   components: {
     clipboardButton,
     CollapsibleContainer,
+    GlEmptyState,
     GlLoadingIcon,
-    SvgMessage,
   },
   props: {
     endpoint: {
@@ -93,7 +92,9 @@ export default {
     this.setMainEndpoint(this.endpoint);
   },
   mounted() {
+    if (!this.characterError) {
       this.fetchRepos();
+    }
   },
   methods: {
     ...mapActions(['setMainEndpoint', 'fetchRepos']),
@@ -102,31 +103,32 @@ export default {
 </script>
 <template>
   <div>
-    <svg-message v-if="characterError" id="invalid-characters" :svg-path="containersErrorImage">
-      <h4>
-        {{ s__('ContainerRegistry|Docker connection error') }}
-      </h4>
+    <gl-empty-state
+      v-if="characterError"
+      :title="s__('ContainerRegistry|Docker connection error')"
+      :svg-path="containersErrorImage"
+    >
+      <template #description>
         <p v-html="dockerConnectionErrorText"></p>
-    </svg-message>
+      </template>
+    </gl-empty-state>
 
-    <gl-loading-icon v-else-if="isLoading && !characterError" size="md" class="prepend-top-16" />
+    <gl-loading-icon v-else-if="isLoading" size="md" class="prepend-top-16" />
 
-    <div v-else-if="!isLoading && !characterError && repos.length">
+    <div v-else-if="!isLoading && repos.length">
       <h4>{{ s__('ContainerRegistry|Container Registry') }}</h4>
       <p v-html="introText"></p>
       <collapsible-container v-for="item in repos" :key="item.id" :repo="item" />
     </div>
 
-    <svg-message
-      v-else-if="!isLoading && !characterError && !repos.length"
-      id="no-container-images"
+    <gl-empty-state
+      v-else
+      :title="s__('ContainerRegistry|There are no container images stored for this project')"
       :svg-path="noContainersImage"
+      class="container-message"
     >
-      <h4>
-        {{ s__('ContainerRegistry|There are no container images stored for this project') }}
-      </h4>
-      <p v-html="noContainerImagesText"></p>
-
+      <template #description>
+        <p class="js-no-container-images-text" v-html="noContainerImagesText"></p>
         <h5>{{ s__('ContainerRegistry|Quick Start') }}</h5>
         <p>
           {{
@@ -157,6 +159,7 @@ export default {
             />
           </span>
         </div>
-    </svg-message>
+      </template>
+    </gl-empty-state>
   </div>
 </template>

app/assets/javascripts/registry/components/svg_message.vue

-<script>
-export default {
-  name: 'RegistrySvgMessage',
-  props: {
-    id: {
-      type: String,
-      required: true,
-    },
-    svgPath: {
-      type: String,
-      required: true,
-    },
-  },
-};
-</script>
-
-<template>
-  <div :id="id" class="empty-state container-message">
-    <div class="svg-content">
-      <img :src="svgPath" class="flex-align-self-center" />
-    </div>
-    <div class="text-content">
-      <slot></slot>
-    </div>
-  </div>
-</template>

app/assets/stylesheets/pages/container_registry.scss

@@ -3,10 +3,6 @@
  */
 
 .container-message {
-  pre {
-    white-space: pre-line;
-  }
-
   span .btn {
     margin: 0;
   }

changelogs/unreleased/64383-pattern-matching-with-variables-causes-gitlabs-ci-lint-to-throw-500.yml

+---
+title: Fix 500 errors caused by pattern matching with variables in CI Lint
+merge_request: 31719
+author:
+type: fixed

lib/gitlab/ci/pipeline/expression/lexeme/matches.rb

@@ -11,8 +11,9 @@ module Gitlab
             def evaluate(variables = {})
               text = @left.evaluate(variables)
               regexp = @right.evaluate(variables)
+              return false unless regexp
 
-              regexp.scan(text.to_s).any?
+              regexp.scan(text.to_s).present?
             end
 
             def self.build(_value, behind, ahead)

lib/gitlab/ci/pipeline/expression/lexeme/not_matches.rb

@@ -11,8 +11,9 @@ module Gitlab
             def evaluate(variables = {})
               text = @left.evaluate(variables)
               regexp = @right.evaluate(variables)
+              return true unless regexp
 
-              regexp.scan(text.to_s).none?
+              regexp.scan(text.to_s).empty?
             end
 
             def self.build(_value, behind, ahead)

spec/javascripts/registry/components/app_spec.js

@@ -84,12 +84,7 @@ describe('Registry List', () => {
 
     it('should render empty message', done => {
       setTimeout(() => {
-        expect(
-          vm.$el
-            .querySelector('p')
-            .textContent.trim()
-            .replace(/[\r\n]+/g, ' '),
-        ).toEqual(
+        expect(vm.$el.querySelector('.js-no-container-images-text').textContent).toEqual(
           'With the Container Registry, every project can have its own space to store its Docker images. More Information',
         );
         done();
@@ -124,7 +119,9 @@ describe('Registry List', () => {
 
     it('should render invalid characters error message', done => {
       setTimeout(() => {
-        expect(vm.$el.querySelector('.container-message')).not.toBe(null);
+        expect(vm.$el.querySelector('p')).not.toContain(
+          'We are having trouble connecting to Docker, which could be due to an issue with your project name or path. More information',
+        );
         done();
       });
     });

spec/lib/gitlab/ci/pipeline/expression/lexeme/matches_spec.rb

@@ -69,6 +69,34 @@ describe Gitlab::Ci::Pipeline::Expression::Lexeme::Matches do
       it { is_expected.to eq(false) }
     end
 
+    context 'when right is nil' do
+      let(:left_value)  { 'my-awesome-string' }
+      let(:right_value) { nil }
+
+      it { is_expected.to eq(false) }
+    end
+
+    context 'when left and right are nil' do
+      let(:left_value)  { nil }
+      let(:right_value) { nil }
+
+      it { is_expected.to eq(false) }
+    end
+
+    context 'when left is an empty string' do
+      let(:left_value)  { '' }
+      let(:right_value) { Gitlab::UntrustedRegexp.new('pattern') }
+
+      it { is_expected.to eq(false) }
+    end
+
+    context 'when left and right are empty strings' do
+      let(:left_value)  { '' }
+      let(:right_value) { Gitlab::UntrustedRegexp.new('') }
+
+      it { is_expected.to eq(true) }
+    end
+
     context 'when left is a multiline string and matches right' do
       let(:left_value) do
         <<~TEXT

spec/lib/gitlab/ci/pipeline/expression/lexeme/not_matches_spec.rb

@@ -69,6 +69,34 @@ describe Gitlab::Ci::Pipeline::Expression::Lexeme::NotMatches do
       it { is_expected.to eq(true) }
     end
 
+    context 'when right is nil' do
+      let(:left_value)  { 'my-awesome-string' }
+      let(:right_value) { nil }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when left and right are nil' do
+      let(:left_value)  { nil }
+      let(:right_value) { nil }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when left is an empty string' do
+      let(:left_value)  { '' }
+      let(:right_value) { Gitlab::UntrustedRegexp.new('pattern') }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when left and right are empty strings' do
+      let(:left_value)  { '' }
+      let(:right_value) { Gitlab::UntrustedRegexp.new('') }
+
+      it { is_expected.to eq(false) }
+    end
+
     context 'when left is a multiline string and matches right' do
       let(:left_value) do
         <<~TEXT