Read HEAD commit and use as releases value

app/assets/javascripts/raven/index.js

@@ -6,6 +6,10 @@ const index = function index() {
     currentUserId: gon.current_user_id,
     whitelistUrls: [gon.gitlab_url],
     isProduction: process.env.NODE_ENV,
+    release: process.env.HEAD_COMMIT_SHA,
+    tags: {
+      HEAD_COMMIT_SHA: process.env.HEAD_COMMIT_SHA,
+    },
   });
 
   return RavenConfig;

app/assets/javascripts/raven/raven_config.js

@@ -57,6 +57,8 @@ const RavenConfig = {
 
   configure() {
     Raven.config(this.options.sentryDsn, {
+      release: this.options.release,
+      tags: this.options.tags,
       whitelistUrls: this.options.whitelistUrls,
       environment: this.options.isProduction ? 'production' : 'development',
       ignoreErrors: this.IGNORE_ERRORS,

config/webpack.config.js

@@ -2,6 +2,7 @@
 
 var fs = require('fs');
 var path = require('path');
+var execSync = require('child_process').execSync;
 var webpack = require('webpack');
 var StatsPlugin = require('stats-webpack-plugin');
 var CompressionPlugin = require('compression-webpack-plugin');
@@ -197,7 +198,33 @@ var config = {
   }
 }
 
+function getHeadCommitSHA() {
+  // Simple SHA validation.
+  // Match 5-40 numbers or lowercase letters between a and f.
+  const SHA_REGEX = /^\b[0-9a-f]{5,40}\b$/;
+  let stdout;
+
+  try {
+    stdout = execSync('git rev-parse HEAD');
+  } catch (error) {
+    throw error;
+  }
+
+  const headCommitSHA = stdout.trim();
+  if (!SHA_REGEX.test(headCommitSHA)) {
+    throw new Error(`\`git rev-parse HEAD\` output is not a valid SHA1: ${headCommitSHA}`);
+  }
+
+  return headCommitSHA;
+}
+
 if (IS_PRODUCTION) {
+  const processEnv = {
+    NODE_ENV: JSON.stringify('production'),
+  };
+
+  processEnv.HEAD_COMMIT_SHA = getHeadCommitSHA();
+
   config.devtool = 'source-map';
   config.plugins.push(
     new webpack.NoEmitOnErrorsPlugin(),
@@ -209,7 +236,7 @@ if (IS_PRODUCTION) {
       sourceMap: true
     }),
     new webpack.DefinePlugin({
-      'process.env': { NODE_ENV: JSON.stringify('production') }
+      'process.env': processEnv,
     }),
     new CompressionPlugin({
       asset: '[path].gz[query]',

spec/javascripts/raven/index_spec.js

@@ -2,18 +2,14 @@ import RavenConfig from '~/raven/raven_config';
 import index from '~/raven/index';
 
 describe('RavenConfig options', () => {
-  let sentryDsn;
-  let currentUserId;
-  let gitlabUrl;
-  let isProduction;
+  const sentryDsn = 'sentryDsn';
+  const currentUserId = 'currentUserId';
+  const gitlabUrl = 'gitlabUrl';
+  const isProduction = 'isProduction';
+  const headCommitSHA = 'headCommitSHA';
   let indexReturnValue;
 
   beforeEach(() => {
-    sentryDsn = 'sentryDsn';
-    currentUserId = 'currentUserId';
-    gitlabUrl = 'gitlabUrl';
-    isProduction = 'isProduction';
-
     window.gon = {
       sentry_dsn: sentryDsn,
       current_user_id: currentUserId,
@@ -21,6 +17,7 @@ describe('RavenConfig options', () => {
     };
 
     process.env.NODE_ENV = isProduction;
+    process.env.HEAD_COMMIT_SHA = headCommitSHA;
 
     spyOn(RavenConfig, 'init');
 
@@ -33,6 +30,10 @@ describe('RavenConfig options', () => {
       currentUserId,
       whitelistUrls: [gitlabUrl],
       isProduction,
+      release: headCommitSHA,
+      tags: {
+        HEAD_COMMIT_SHA: headCommitSHA,
+      },
     });
   });
 

spec/javascripts/raven/raven_config_spec.js

@@ -25,17 +25,9 @@ describe('RavenConfig', () => {
   });
 
   describe('init', () => {
-    let options;
+    const options = {};
 
     beforeEach(() => {
-      options = {
-        sentryDsn: '//sentryDsn',
-        ravenAssetUrl: '//ravenAssetUrl',
-        currentUserId: 1,
-        whitelistUrls: ['//gitlabUrl'],
-        isProduction: true,
-      };
-
       spyOn(RavenConfig, 'configure');
       spyOn(RavenConfig, 'bindRavenErrors');
       spyOn(RavenConfig, 'setUser');
@@ -84,6 +76,10 @@ describe('RavenConfig', () => {
         sentryDsn: '//sentryDsn',
         whitelistUrls: ['//gitlabUrl'],
         isProduction: true,
+        release: 'release',
+        tags: {
+          HEAD_COMMIT_SHA: 'headCommitSha',
+        },
       };
 
       ravenConfig = jasmine.createSpyObj('ravenConfig', ['shouldSendSample']);
@@ -100,6 +96,8 @@ describe('RavenConfig', () => {
 
     it('should call Raven.config', () => {
       expect(Raven.config).toHaveBeenCalledWith(options.sentryDsn, {
+        release: options.release,
+        tags: options.tags,
         whitelistUrls: options.whitelistUrls,
         environment: 'production',
         ignoreErrors: ravenConfig.IGNORE_ERRORS,