DIY Tomcat, where is the webapp folder on the local git repo - openshift

Question

following OpenShift tutorials, creating a tomcat application and clone it, the local repository will contain a pom.xml, webapp folder.
What's the equivalent on a diy application that contain a diy and misc folders
Thank's in advance, any help is appreciated cause I'm really stuck here !?
Update
Well I've install a Tomcat 8 DIY application following this tutorial here everything works fine, I can see the Tomcat page in the browser, the problem is how to deploy a .war file.
For a Tomcat 6/7 application on OpenShift, the local git repository have this structure:
____Tomcat7/6
|_________ webapp
|_________ src
|_________ pom.xml
But for a Tomcat 8 DYI application I have this structure
________Tomcat8/diy
|__________ Diy
|__________ misc
|__________ readme
So Where to deploy my .war files, cause there is no webapp folder?

Answer 1

The title of your question suggests that you are mixing up at least 5 different, completely independent & orthogonal tools and concepts:
Git is a version control system ("push", "local repo")
Maven is a build tool ("pom.xml")
Apache Tomcat is a servlet container ("Tomcat 6/7/8")
rhc is some client tool provided by yet another cloud computing platform ("OpenShift")
Your code is the stuff that you have written, it's completely under your responsibility.
Before you start doing anything, please make sure that you have at least some basic understanding of what each of these tools does. Then ask yourself whether you really need Tomcat 8 instead of Tomcat 7, and whether a 2 year blog post about the compilation of Tomcat 8 within an OpenShift gear is the best source. All these deployment details can change pretty quickly, if it worked two years ago, it's not guaranteed that it would work now.
I've never worked with OpenShift, but as far as I understand, the basic idea is this:
You write your code
You create your OpenShift account and allocate some "Gear" (or "Dyno" or whatever...) for your application
You commit your source code (/src) and the files that are necessary for the build (pom.xml), and use git to push it to the repository OpenShift gave you.
OpenShift then uses your pom.xml and builds all the WAR-files on it's own
Then you can use your rhc client tool to start your application, if that's not done automatically.
Some of these steps can be changed.
If you really have to, you can indeed compile your own Tomcat8, the tutorial you linked tells you how (more or less. The dude who did it obviously knew what he was doing there, so he might have skipped some details that seemed trivial to him).
Furthermore, if you really want, you can deploy pre-packaged WAR-files, by deliberately removing all the stuff that is necessary to build you app (removing pom.xml and all the /src), and instead adding the packaged application to your git repo, and then pushing it all to OpenShift. Then it will skip the build step, and just run what you gave it. OpenShift seems to provide some information about this deployment strategy: https://help.openshift.com/hc/en-us/articles/202399740. Please read the documentation and make sure you understand what you want to do. For example, filter-branching your git repo and removing all source files you have ever written is not a good idea, even if you don't need these files on OpenShift.
Currently, I don't see anything of the standard tomcat directory structure in the tree that you show. Instead, there seem to be just some basic ruby-scripts or some other default-demo-app-stuff... That's why it's called "do it yourself". If you don't want this, take a standard Tomcat7 app.