How do I download a specific service's source code off of AppEngine?
<p>I have some php source code working in an app engine production environment that won't work anywhere else.  Old versions of that code don't seem to work at all either so I need to get that source and see what the heck it is doing differently.</p>

<p>This discussion outlines the challenges I'm having:
<a href="http://google-app-engine.75637.x6.nabble.com/Download-specific-Module-code-td699.html" rel="nofollow">http://google-app-engine.75637.x6.nabble.com/Download-specific-Module-code-td699.html</a></p>

<p>I was told to try using appcfg.py download_app:</p>

<pre><code>appcfg.py download_app -A &lt;APP_NAME&gt; -V &lt;Version&gt; &lt;DIR&gt;
</code></pre>

<p>The problem is that this command does not allow me to specify module / service so I can't target my source code.  Also I'm not the App owner so I can't download everything but from what I understand that still wouldn't work because appcfg only seems to target the default service.</p>

<p>The article I linked ends with a suggestion to use gcloud to download the app but I haven't been able to find how to do that.  Does anyone here know how to resolve this?  The service is running in a Flexible instance - not sure if that makes a difference...</p>

<p>From <code>appcfg.py download_app --help</code>:</p>

<blockquote>
  <p>Usage: appcfg.py [options] download_app -A app_id [ -V version ]
  </p>
  
  <p>...</p>
  
  <p>-M MODULE, --module=MODULE
                          Set the module, overriding the module value from
                          app.yaml. ...</p>
</blockquote>

<p>This invocation allowed me to download the code for the non-default  python module of :</p>

<pre><code>appcfg.py --module=&lt;my_module&gt; download_app -A &lt;my_app&gt; .
</code></pre>

<p>Of course, you need to meet authentication and ownership requirements, etc.
And your app shouldn't have been configured for prevention of source code downloads (ireversible config)</p>

php python google-app-engine google-app-engine-php