How to use proguard on intellij IDEA?

I am using Intellij IDEA to develop java desktop application. And I want to obfuscate my source code using proguard. How to integrate/use proguard on Intellij IDEA 2016.1.14?

Solution

I have not tried this (i like to find the easy way first) but, it should work if you follow the steps. I will try this and report back.

Go to this link and learn how to create an Ant build file for IntelliJ IDEA
Go here to download yGuard
Unpack the yGuard archive and navigate to the doc directory.
There is an html "how to" file. Read up on that, and you should be ready to release minified code.
Optional: search the net for yGuard tips & tricks to get the most out of your builds.

--- WORKING-NOTES ---

[1.0] In IntelliJ 2017, there is an option to generate the Ant Build File on the build menu. Build->Generate Ant Build File The settings that work for me are single-build-file, with everything else checked, using the supplied project name.

[1.1] View->Tool Windows->Ant Build this should get you where you need to be with the knowledge you got from the 5th step of the link at step 1 and step 4 of this answer.

Here is my working yGuard task:

<target depends="artifact.project" name="yguard">
<taskdef name="yguard"
         classname="com.yworks.yguard.YGuardTask"
         classpath="yguard.jar"/>
<yguard>

  <inoutpair in="${temp.jar.path.project.jar}"
             out="${artifact.output.project}/project-release.jar"/>

    <shrink
            logfile="shrinklog.xml">
        <keep>
            <class classes="protected"
                   methods="protected"
                   fields="protected"/>
        </keep>
    </shrink>

</yguard>

Then you modify your "all" to look like this:

  <target name="all" depends="build.modules, build.all.artifacts, yguard"
          description="build all">
      <!-- Delete temporary files -->
      <delete dir="${artifacts.temp.dir}"/>

  </target>

And you have to REMOVE the delete temporary files action from the build.all.artifacts target, so when you get to the all target, the files are still available.

Just like it says in the yGuard html doc at the bottom, IntelliJ will complain about your yGuard syntax, but yGuard will still work.

If anyone can clean this up, feel free. It works for me, your mileage may vary. Also, you WILL be able to create a really tiny ant build xml, and use the Project Structure->Artifacts->Post Processing, after you have added your "tiny" ant build as noted in WORKING-NOTES: [1.1] "5th step". Some hand-hacking will definitely be required for this.