Put commit hash and build time on admin page

Dockerfile

@@ -32,6 +32,8 @@ RUN curl https://api.rollbar.com/api/1/deploy/ \
 	-F revision=$(git log -n 1 --pretty=format:"%H") \
 	-F local_username="$(git log -n 1 --pretty=format:"%an")"
 
+RUN node setup.js
+
 WORKDIR /usr/src/app/build
 
 CMD [ "node", "server.js" ]

setup.js

@@ -0,0 +1,24 @@
+/* eslint-disable no-console */
+const exec = require('child_process').exec;
+const fs = require('fs');
+
+const config = {
+  build: {},
+};
+
+function writeConfigFile() {
+  fs.writeFile('build/public/config.json', JSON.stringify(config), (err) => {
+    if (err) {
+      return console.error(err);
+    }
+    return console.log('Config file saved');
+  });
+}
+
+exec('git log -n 1 --pretty=format:"%H"', (err, stdout) => {
+  if (stdout) {
+    config.build.hash = stdout;
+    config.build.time = new Date();
+    writeConfigFile();
+  }
+});

src/routes/admin/Admin.js

@@ -22,6 +22,10 @@ class Admin extends React.Component {
       name: PropTypes.string,
       total: PropTypes.integer,
     })).isRequired,
+    build: PropTypes.shape({
+      hash: PropTypes.string,
+      time: PropTypes.string,
+    }),
   };
 
   render() {
@@ -50,6 +54,12 @@ class Admin extends React.Component {
               ))}
             </ul>
           </div>
+          <div>
+            Build hash: <a href={`https://bitbucket.org/dan_head/wedding/commits/${this.props.build.hash}`}>{this.props.build.hash}</a>
+          </div>
+          <div>
+            Build time: {this.props.build.time}
+          </div>
         </div>
       </div>
     );

src/routes/admin/index.js

@@ -1,6 +1,7 @@
 import React from 'react';
 import Layout from '../../components/Layout';
 import fetchQL from '../../core/fetchQL';
+import fetch from '../../core/fetch';
 import { starters, mains } from '../../config';
 
 const title = 'Admin';
@@ -11,7 +12,14 @@ export default {
 
   async action() {
     const resp = await fetchQL('{getAllPersons{key,firstname,lastname,email,password,completed,starter,main}}');
+    const configResp = await fetch('/config.json', {
+      headers: {
+        Accept: 'application/json',
+        'Content-Type': 'application/json',
+      },
+    });
     const { data } = await resp.json();
+    const config = await configResp.json();
     const people = data.getAllPersons || [];
 
     const food = {
@@ -37,6 +45,7 @@ export default {
         people={people}
         starters={food.starters}
         mains={food.mains}
+        build={config.build}
       /></Layout>,
     };
   },