What the question says really - can you issue any commands directly to gradlew via the command line to build, package and deploy to a device?
There are three commands to accomplish this:
./gradlew assembleDebug #To build the project
adb install -r ./app/build/outputs/apk/app-debug.apk #To install it to the device
adb shell am start -n $PACKAGE/$PACKAGE.$ACTIVITY #To launch the application in the device
, where $PACKAGE is the development package and $ACTIVITY is the activity to be launched (the launcher activity).
I've been writing a bash script to do this, with other few features.