Use svg icon for deployment series

Use the rocket GitLab SVG to show deployment data

app/assets/javascripts/lib/utils/icon_utils.js

+/* eslint-disable import/prefer-default-export */
+
+import axios from '~/lib/utils/axios_utils';
+
+/**
+ * Retrieve SVG icon path content from gitlab/svg sprite icons
+ * @param {String} name
+ */
+export const getSvgIconPathContent = name =>
+  axios
+    .get(gon.sprite_icons)
+    .then(({ data: svgs }) =>
+      new DOMParser()
+        .parseFromString(svgs, 'text/xml')
+        .querySelector(`#${name} path`)
+        .getAttribute('d'),
+    )
+    .catch(() => null);

app/assets/javascripts/monitoring/components/charts/area.vue

@@ -2,6 +2,7 @@
 import { GlAreaChart } from '@gitlab/ui/dist/charts';
 import dateFormat from 'dateformat';
 import { debounceByAnimationFrame } from '~/lib/utils/common_utils';
+import { getSvgIconPathContent } from '~/lib/utils/icon_utils';
 
 let debouncedResize;
 
@@ -48,6 +49,7 @@ export default {
     return {
       width: 0,
       height: 0,
+      scatterSymbol: undefined,
     };
   },
   computed: {
@@ -121,6 +123,8 @@ export default {
       return {
         type: 'scatter',
         data: this.recentDeployments.map(deployment => [deployment.createdAt, 0]),
+        symbol: this.scatterSymbol,
+        symbolSize: 14,
       };
     },
     xAxisLabel() {
@@ -140,12 +144,22 @@ export default {
   created() {
     debouncedResize = debounceByAnimationFrame(this.onResize);
     window.addEventListener('resize', debouncedResize);
+    this.getScatterSymbol();
   },
   methods: {
     formatTooltipText(params) {
       const [date, value] = params;
       return [dateFormat(date, 'dd mmm yyyy, h:MMtt'), value.toFixed(3)];
     },
+    getScatterSymbol() {
+      getSvgIconPathContent('rocket')
+        .then(path => {
+          if (path) {
+            this.scatterSymbol = `path://${path}`;
+          }
+        })
+        .catch(() => {});
+    },
     onResize() {
       const { width, height } = this.$refs.areaChart.$el.getBoundingClientRect();
       this.width = width;

spec/javascripts/lib/utils/icon_utils_spec.js

+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
+import * as iconUtils from '~/lib/utils/icon_utils';
+
+describe('Icon utils', () => {
+  describe('getSvgIconPathContent', () => {
+    let spriteIcons;
+
+    beforeAll(() => {
+      spriteIcons = gon.sprite_icons;
+      gon.sprite_icons = 'mockSpriteIconsEndpoint';
+    });
+
+    afterAll(() => {
+      gon.sprite_icons = spriteIcons;
+    });
+
+    let axiosMock;
+    let mockEndpoint;
+    let getIcon;
+    const mockName = 'mockIconName';
+    const mockPath = 'mockPath';
+
+    beforeEach(() => {
+      axiosMock = new MockAdapter(axios);
+      mockEndpoint = axiosMock.onGet(gon.sprite_icons);
+      getIcon = iconUtils.getSvgIconPathContent(mockName);
+    });
+
+    afterEach(() => {
+      axiosMock.restore();
+    });
+
+    it('extracts svg icon path content from sprite icons', done => {
+      mockEndpoint.replyOnce(
+        200,
+        `<svg><symbol id="${mockName}"><path d="${mockPath}"/></symbol></svg>`,
+      );
+      getIcon
+        .then(path => {
+          expect(path).toBe(mockPath);
+          done();
+        })
+        .catch(done.fail);
+    });
+
+    it('returns null if icon path content does not exist', done => {
+      mockEndpoint.replyOnce(200, ``);
+      getIcon
+        .then(path => {
+          expect(path).toBe(null);
+          done();
+        })
+        .catch(done.fail);
+    });
+
+    it('returns null if an http error occurs', done => {
+      mockEndpoint.replyOnce(500);
+      getIcon
+        .then(path => {
+          expect(path).toBe(null);
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
+});