title: Liquibase include with context
body: <p>I need to include files in a databaseChangeLog, but these files may not exist, depending on the installation.
  My idea was to use something like includes with context, so Liquibase will only try to open the file when the appropriate context is given:</p>
  
  <pre><code>&lt;include file=”myFile” context=”myContext”/&gt;
  </code></pre>
  
  <p>But context is not used in an include tag, and Liquibase fails because the file is not present.
  I’ll rather not use includeAll because I need the files to be included at specific parts of my main file.
  Any ideas? Thanks!</p>