#!/bin/bash

CURRENT_VERSION=$(cat version.txt)
NEW_VERSION="${1}"

if [ -z "${NEW_VERSION}" ]; then
    echo "No new version given"
    exit 1
fi

echo "Bumping version ${CURRENT_VERSION} to ${NEW_VERSION}"

CURRENT_VERSION=$(printf '%s\n' "$CURRENT_VERSION" | sed -e 's/[\/&]/\\&/g')
NEW_VERSION=$(printf '%s\n' "$NEW_VERSION" | sed -e 's/[\/&]/\\&/g')

echo "Found the following matching version strings:"
git grep -I "${CURRENT_VERSION}"

echo "Proceed? [N/y]"
read proceed

if [ "${proceed}" = "y" ]; then
    git grep -Il "${CURRENT_VERSION}" | xargs sed --in-place -e "s/${CURRENT_VERSION}/${NEW_VERSION}/g"
    git add $(git grep -Il "${NEW_VERSION}")
fi