Android Studio vs command line compile /w gradlew
In the root of the project you have gradlew.bat, which is how you can run it in the first place. If you open this file, you see the code for building and everything else Gradle does.
Whether you build from the command line or ANdroid Studio, the gradlew.bat file is used. So building and other stuff you do with the gradlew command all use the same file whether it is from the command line or Android Studio's integrated tools.
You can open the file(s, there's gradlew and gradlew.bat in the project root) and see how it works if you wanted too, though these files are usually automatically generated by Android Studio (it is possible to make your own config as well, though there's rarely a need for that). And for including in vcs, make sure the files aren't listed in .gitnore (or whatever vcs ignore extension you have)