From 7e7d792ba561a2761ba8ead4d50870cce3dc7afc Mon Sep 17 00:00:00 2001
From: Jonathan Beezley <jonathan.beezley@kitware.com>
Date: Wed, 20 Apr 2016 14:47:05 -0400
Subject: [PATCH] Add git sha to the built bundle.

---
 .eslintignore          |  1 +
 src/index.js           |  1 +
 src/sha.js             |  1 +
 src/version.js         |  2 +-
 tests/cases/version.js |  7 +++++++
 webpack.config.js      | 12 +++++++++++-
 6 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 src/sha.js

diff --git a/.eslintignore b/.eslintignore
index 200ccbcfc8..a8b1cbe073 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,5 +1,6 @@
 src/vgl/**
 src/version.js
+src/sha.js
 src/util/wigglemaps.js
 src/util/distanceGrid.js
 geo.js
diff --git a/src/index.js b/src/index.js
index 9a5e2282a6..6d0c576e0b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -63,6 +63,7 @@ module.exports = $.extend({
   vectorFeature: require('./vectorFeature'),
   inherit: require('./inherit'),
   version: require('./version'),
+  sha: require('./sha'),
 
   util: require('./util'),
   d3: require('./d3'),
diff --git a/src/sha.js b/src/sha.js
new file mode 100644
index 0000000000..69abf4c005
--- /dev/null
+++ b/src/sha.js
@@ -0,0 +1 @@
+module.exports = GEO_SHA;
diff --git a/src/version.js b/src/version.js
index c1546992cb..21169a32d6 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1 +1 @@
-module.exports = VERSION;
+module.exports = GEO_VERSION;
diff --git a/tests/cases/version.js b/tests/cases/version.js
index 733c402d97..99d234fad3 100644
--- a/tests/cases/version.js
+++ b/tests/cases/version.js
@@ -4,3 +4,10 @@ describe('geo.version', function () {
     expect(geo.version).toMatch(/[0-9]+\.[0-9]+\.[0-9]+[_a-zA-Z]*/);
   });
 });
+
+describe('geo.version', function () {
+  var geo = require('../test-utils').geo;
+  it('Git SHA is defined', function () {
+    expect(geo.sha).toMatch(/^[0-9a-f]{8,}$/);
+  });
+});
diff --git a/webpack.config.js b/webpack.config.js
index 634e3c5394..1a38daa900 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,7 +1,17 @@
 var path = require('path');
 var webpack = require('webpack');
+var exec = require('child_process').execSync;
+var sha = '';
+
+try {
+  sha = exec('git rev-parse HEAD', {cwd: __dirname}).toString().trim();
+} catch (e) {
+  console.warn('Could not determine git hash.');
+}
+
 var define_plugin = new webpack.DefinePlugin({
-  VERSION: JSON.stringify(require('./package.json').version)
+  GEO_SHA: JSON.stringify(sha),
+  GEO_VERSION: JSON.stringify(require('./package.json').version)
 });
 
 module.exports = {