Creates Vue commit component for job log page

app/assets/javascripts/jobs/components/commit_block.vue

+<script>
+import ClipboardButton from '~/vue_shared/components/clipboard_button.vue';
+
+export default {
+  components: {
+    ClipboardButton,
+  },
+  props: {
+    pipelineShortSha: {
+      type: String,
+      required: true,
+    },
+    pipelineShaPath: {
+      type: String,
+      required: true,
+    },
+    mergeRequestReference: {
+      type: String,
+      required: false,
+      default: null,
+    },
+    mergeRequestPath: {
+      type: String,
+      required: false,
+      default: null,
+    },
+    gitCommitTitlte: {
+      type: String,
+      required: true,
+    },
+  },
+};
+</script>
+<template>
+  <div class="block">
+    <p>
+      {{ __('Commit') }}
+
+      <a
+        :href="pipelineShaPath"
+        class="js-commit-sha commit-sha link-commit"
+      >
+        {{ pipelineShortSha }}
+      </a>
+
+      <clipboard-button
+        :text="pipelineShortSha"
+        :title="__('Copy commit SHA to clipboard')"
+      />
+
+      <a
+        v-if="mergeRequestPath && mergeRequestReference"
+        :href="mergeRequestPath"
+        class="js-link-commit link-commit"
+      >
+        {{ mergeRequestReference }}
+      </a>
+    </p>
+
+    <p class="build-light-text append-bottom-0">
+      {{ gitCommitTitlte }}
+    </p>
+  </div>
+</template>

changelogs/unreleased/50101-commit-block.yml

+---
+title: Creates vue component for commit block in job log page
+merge_request:
+author:
+type: other

spec/javascripts/jobs/commit_block_spec.js

+import Vue from 'vue';
+import component from '~/jobs/components/commit_block.vue';
+import mountComponent from '../helpers/vue_mount_component_helper';
+
+describe('Commit block', () => {
+  const Component = Vue.extend(component);
+  let vm;
+
+  const props = {
+    pipelineShortSha: '1f0fb84f',
+    pipelineShaPath: 'commit/1f0fb84fb6770d74d97eee58118fd3909cd4f48c',
+    mergeRequestReference: '!21244',
+    mergeRequestPath: 'merge_requests/21244',
+    gitCommitTitlte: 'Regenerate pot files',
+  };
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('pipeline short sha', () => {
+    beforeEach(() => {
+      vm = mountComponent(Component, {
+        ...props,
+      });
+    });
+
+    it('renders pipeline short sha link', () => {
+      expect(vm.$el.querySelector('.js-commit-sha').getAttribute('href')).toEqual(props.pipelineShaPath);
+      expect(vm.$el.querySelector('.js-commit-sha').textContent.trim()).toEqual(props.pipelineShortSha);
+    });
+
+    it('renders clipboard button', () => {
+      expect(vm.$el.querySelector('button').getAttribute('data-clipboard-text')).toEqual(props.pipelineShortSha);
+    });
+  });
+
+  describe('with merge request', () => {
+    it('renders merge request link and reference', () => {
+      vm = mountComponent(Component, {
+        ...props,
+      });
+
+      expect(vm.$el.querySelector('.js-link-commit').getAttribute('href')).toEqual(props.mergeRequestPath);
+      expect(vm.$el.querySelector('.js-link-commit').textContent.trim()).toEqual(props.mergeRequestReference);
+
+    });
+  });
+
+  describe('without merge request', () => {
+    it('does not render merge request', () => {
+      const copyProps = Object.assign({}, props);
+      delete copyProps.mergeRequestPath;
+      delete copyProps.mergeRequestReference;
+
+      vm = mountComponent(Component, {
+        ...copyProps,
+      });
+
+      expect(vm.$el.querySelector('.js-link-commit')).toBeNull();
+    });
+  });
+
+  describe('git commit title', () => {
+    it('renders git commit title', () => {
+      vm = mountComponent(Component, {
+        ...props,
+      });
+
+      expect(vm.$el.textContent).toContain(props.gitCommitTitlte);
+    });
+  });
+});