Help automate the release of maven artifacts

mvnrelease.sh

#!/bin/sh

function checkError {
if [ "$?" -ne "0" ]; then
  echo ""
  echo "ECHEC dans $1"
  echo ""
  exit 1
fi
}

function gitCommitIfModifications {
    GIT_STATUS=`git status --porcelain | grep M`
    if [ "$GIT_STATUS" == "" ]; then
        echo ""
        echo "$2"
        echo ""
    else
        git add pom.xml  
        git ci -m'$1'
    fi    
}

# UPDATING PARENT POM
mvn versions:update-parent
checkError "Update parent"
gitCommitIfModifications "Updated parent pom" "Parent pom is already using latest version."

# UPDATING DEPENDENCIES
mvn versions:use-latest-versions -Dincludes=com.urbandive
checkError "Update dependencies"
gitCommitIfModifications "Updated pom to latest version" "No new dependencies."

echo "Do you want to release geoentity-parent-conf (y/n)"
read yesno

if [ "$yesno" == "y" ]; then
    mvn release:clean release:prepare
    checkError
    mvn release:perform
    checkError
fi