push.sh

#!/bin/bash

function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}

if [ 0 -eq `git remote -v | grep -c push` ]; then
	REMOTE_REPO=`git remote -v | sed 's/origin//'`
else
	REMOTE_REPO=`git remote -v | grep "(push)" | sed 's/origin//' | sed 's/(push)//'`
fi

BRANCH=$(parse_git_branch)

if [ -z "$1" ]; then
	echo "No commit is performed since no comment is provided"
else
	git add .
	git commit -a -m "$1"
fi
git pull
	
if [ ! -d ".privatebuild" ]; then
	git clone . .privatebuild
fi

cd .privatebuild
if [ $BRANCH != $(parse_git_branch) ]; then
	git checkout $BRANCH
	if [ $BRANCH != $(parse_git_branch) ]; then
		git checkout --track -b $BRANCH origin\/$BRANCH
	fi
fi
	
git fetch
git reset --hard origin\/$BRANCH
git clean -xdf

if [ -e "pom.xml" ]; then
	export MAVEN_OPTS="-Xmx2G -XX:MaxPermSize=256m"
	
	if (`mvn --help | grep -e '--threads' > /dev/null`); then
		echo "Using // Build in Maven"
		mvn -T 0.5C install -PfullPackage
	else
		mvn install -PfullPackage
	fi

	if [ $? -eq 0 ]; then
		if [ "$1" != "no-push" ]; then
			echo "Publishing to: $REMOTE_REPO"
			git push $REMOTE_REPO $BRANCH
		fi
	else
		echo "Unable to build"
		exit $?
	fi
else
	echo "Could not find pom.xml"
fi

Just a test of gitHub comment :
I would rather have named parse_git_branch => find_current_branch