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hooking-up-android-gradle-and-travis-ci.html
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hooking-up-android-gradle-and-travis-ci.html
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<h1>
<a href="./hooking-up-android-gradle-and-travis-ci.html"
rel="bookmark"
title="Permalink to Hooking Up Android Gradle and Travis CI">
Hooking Up Android Gradle and Travis CI
</a>
</h1>
<i><time datetime="2014-11-16T00:00:00-05:00"> Sun 16 November 2014</time></i>
<div class="entry-content">
<div class="panel">
<br/>
</div>
<div class="container">
<br/>
<img class="img-responsive" src="https://raw.githubusercontent.com/donnemartin/donnemartin.github.io/master/images/posts/travis-logo_cover.png">
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<hr class="featurette-divider">
<p>I’ve recently started using <a href="http://www.gradle.org/">Gradle</a> as the build system for my Android projects. <a href="https://travis-ci.org/">Travis CI</a> is a very popular continuous integration tool for open source projects.</p>
<h2>Hooking Up Travis CI to GitHub</h2>
<p>To hook up Travis CI with Github, simply sign in using your GitHub account. Next, select which repos you want to hook up:</p>
<p align="center">
<img src="http://donnemartin.net/wp-content/uploads/2014/10/Screen-Shot-2014-10-04-at-4.21.59-AM.png" class="img-responsive">
</p>
<p>Finally, add a .travis.yml file, such as the sample provided below, then push to kick off a build:</p>
<div class="highlight"><pre><span class="n">android</span><span class="o">:</span>
<span class="n">components</span><span class="o">:</span>
<span class="err">#</span> <span class="n">Uncomment</span> <span class="n">the</span> <span class="n">lines</span> <span class="n">below</span> <span class="k">if</span> <span class="n">you</span> <span class="n">want</span> <span class="n">to</span>
<span class="err">#</span> <span class="n">use</span> <span class="n">the</span> <span class="n">latest</span> <span class="n">revision</span> <span class="n">of</span> <span class="n">Android</span> <span class="n">SDK</span> <span class="n">Tools</span>
<span class="err">#</span> <span class="o">-</span> <span class="n">platform</span><span class="o">-</span><span class="n">tools</span>
<span class="err">#</span> <span class="o">-</span> <span class="n">tools</span>
<span class="err">#</span> <span class="n">The</span> <span class="n">BuildTools</span> <span class="n">version</span> <span class="n">used</span> <span class="n">by</span> <span class="n">your</span> <span class="n">project</span>
<span class="o">-</span> <span class="n">build</span><span class="o">-</span><span class="n">tools</span><span class="o">-</span><span class="mf">19.1</span><span class="o">.</span><span class="mi">0</span>
<span class="err">#</span> <span class="n">The</span> <span class="n">SDK</span> <span class="n">version</span> <span class="n">used</span> <span class="n">to</span> <span class="n">compile</span> <span class="n">your</span> <span class="n">project</span>
<span class="o">-</span> <span class="n">android</span><span class="o">-</span><span class="mi">19</span>
<span class="err">#</span> <span class="n">Additional</span> <span class="n">components</span>
<span class="o">-</span> <span class="n">extra</span><span class="o">-</span><span class="n">google</span><span class="o">-</span><span class="n">google_play_services</span>
<span class="o">-</span> <span class="n">extra</span><span class="o">-</span><span class="n">google</span><span class="o">-</span><span class="n">m2repository</span>
<span class="o">-</span> <span class="n">extra</span><span class="o">-</span><span class="n">android</span><span class="o">-</span><span class="n">m2repository</span>
<span class="o">-</span> <span class="n">addon</span><span class="o">-</span><span class="n">google_apis</span><span class="o">-</span><span class="n">google</span><span class="o">-</span><span class="mi">19</span>
<span class="err">#</span> <span class="n">Specify</span> <span class="n">at</span> <span class="n">least</span> <span class="n">one</span> <span class="n">system</span> <span class="n">image</span><span class="o">,</span>
<span class="err">#</span> <span class="k">if</span> <span class="n">you</span> <span class="n">need</span> <span class="n">to</span> <span class="n">run</span> <span class="n">emulator</span><span class="o">(</span><span class="n">s</span><span class="o">)</span> <span class="n">during</span> <span class="n">your</span> <span class="n">tests</span>
<span class="o">-</span> <span class="n">sys</span><span class="o">-</span><span class="n">img</span><span class="o">-</span><span class="n">armeabi</span><span class="o">-</span><span class="n">v7a</span><span class="o">-</span><span class="n">android</span><span class="o">-</span><span class="mi">19</span>
<span class="o">-</span> <span class="n">sys</span><span class="o">-</span><span class="n">img</span><span class="o">-</span><span class="n">x86</span><span class="o">-</span><span class="n">android</span><span class="o">-</span><span class="mi">17</span>
</pre></div>
<p>Depending on the load, Travis CI will then kick off a build and email you the results.</p>
<h2>Hooking Up Android Gradle to Travis CI</h2>
<p>I found Travis CI to be difficult to integrate with Android Gradle from scratch, as the support is still in beta and there is a lack of documentation:</p>
<p align="center">
<img src="http://donnemartin.net/wp-content/uploads/2014/10/Screen-Shot-2014-10-03-at-7.45.20-PM-1024x263.png" class="img-responsive">
</p>
<p>For example, I ran into the following cryptic issue:</p>
<p align="center">
<img src="http://donnemartin.net/wp-content/uploads/2014/10/Screen-Shot-2014-10-03-at-7.48.37-PM.png" class="img-responsive">
</p>
<p>Which I fixed by adding the following to my .travis.yml:</p>
<div class="highlight"><pre>chmod +x grailsw
</pre></div>
<p>Ultimately, a blank slate configuration of Android Gradle with Travis CI (in its current beta Android integration) proved to be quite a difficult task. I decided to take a step back and evaluate other options.</p>
<h2>android-tdd-playground</h2>
<p><a href="https://github.com/donnemartin/android-tdd-playground">android-tdd-playground</a> is a good starting point to enable your projects to use Gradle, Travis CI, and even the Android Testing Framework. I simply forked the project and started moving over components from my <a href="https://github.com/donnemartin/photogallery">Flickr Android app</a> to the "playground" and customized as needed.</p>
<p>I recommend taking this approach when first starting with Travis CI, as it streamlines the integration and allows you to focus on your app.</p>
<h2>Travis CI Badge:</h2>
<p align="center">
<img src="http://donnemartin.net/wp-content/uploads/2014/10/Screen-Shot-2014-10-03-at-7.48.37-PM.png" class="img-responsive">
</p>
<p>The Travis CI badge gives visual feedback of the state of the last build. Adding the Travis CI build results is just one line of code to your README markdown:</p>
<p align="center">
<img src="http://donnemartin.net/wp-content/uploads/2014/10/Screen-Shot-2014-10-04-at-4.39.06-AM.png" class="img-responsive">
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