#!/bin/bash

if [ "$#" -ne 2 ]
  then
    echo "Use: ./bump-version old_version new_version"
    exit
fi

old_version=$1
new_version=$2

update_version() {
    echo "Updating version from '$old_version' to '$new_version' in $1"
    sed -i.bak s/$old_version/$new_version/g $1
    rm $1.bak
}

update_version "README.md"
update_version "gradle.properties"

# Escape dots, e.g. 1.0.0 -> 1\.0\.0
escaped_old_version=$(echo $old_version | sed s/[.]/\\\\./g)
result=$(find ./ -type f \( -iname \*.properties -o -iname \*.md \) | grep -v "\.gradle" | grep -v "build" | xargs -I{} grep -H "$escaped_old_version" {} | grep -v CHANGES.md)
if [ -z "$result" ];
then
    echo "Done"
else
    echo "ERROR: Previous version is present in the project: $result"
    exit -1
fi