Script to update dependencies

update.sh

#!/bin/sh

git checkout master
git reset --hard upstream/master
mvn versions:display-plugin-updates > updates_output.txt
#mvn versions:display-dependency-updates >> updates_output.txt
dos2unix updates_output.txt
grep ' -> ' updates_output.txt > to_update.txt
while read line; do
  arr=($line)
  dependency=${arr[1]}
  if [[ $line == *". "* ]]
  then
    current_version=${arr[3]}
    updated_version=${arr[5]}
  else
      current_version=${arr[2]}
    updated_version=${arr[4]}
  fi
  count=$(grep -Fc ">$current_version<" pom.xml)
  if [ $count == 0 ]
  then
    echo "ERROR - Count for $line is '$count'."
  else
    sanitized_dependency=`echo $dependency | tr ".\-:" "___"`
    branch_name="update_$sanitized_dependency"  
    git checkout -b $branch_name
    git reset --hard upstream/master >/dev/null
    if [ $count == 1 ]
    then
      sed -i "s/>$current_version</>$updated_version</" pom.xml    
    else
      current_version_escaped=`echo $current_version | sed 's/\./\\\\./g'`
      artifact_id=`echo $dependency | cut -d \: -f 2`
      echo $artifact_id
      perl -0777 -i -pe "s/($artifact_id.*?)>$current_version_escaped/\$1>$updated_version/s" pom.xml
    fi
    mvn verify > /dev/null
    build_status=$?
    if [ $build_status -ne 0 ]
    then
        echo "ERROR - Maven build failed when $dependency updated to to $updated_version"
        git branch -D $branch_name
    else
        git commit -a -m"Update $dependency to $updated_version, issue #644"
        echo "INFO - Updated $dependency from $current_version to $updated_version"
    fi
  fi
done < to_update.txt

git checkout master
git reset --hard upstream/master