fixed bash less than in if statement

fuck you bash!

deploy.sh

@@ -2,22 +2,22 @@
 set -e
 
 # Check for the source server (with default)
-DEPLOY_SOURCE_FILE="~/.deploy_source"
+DEPLOY_SOURCE_FILE="${HOME}/.deploy_source"
 DEPLOY_SOURCE="https://git.bjphoster.com/deployments"
 if [ -f "${DEPLOY_SOURCE_FILE}" ]; then
   . "${DEPLOY_SOURCE_FILE}"
 fi
 
 # Check for the deploy position (with default)
-DEPLOY_DESTINATION_FILE="~/.deploy_destination"
+DEPLOY_DESTINATION_FILE="${HOME}/.deploy_destination"
 DEPLOY_DESTINATION="/opt"
-if [ -f "${DEPLOY_SOURCE_FILE}" ]; then
-  . "${DEPLOY_SOURCE_FILE}"
+if [ -f "${DEPLOY_DESTINATION_FILE}" ]; then
+  . "${DEPLOY_DESTINATION_FILE}"
 fi
 
 # Check if the correct usage is respected
-if [ $# -ne 2 ]; then
-  echo "Usage: $0 <service> <service name>"
+if [ $# -lt 2 ]; then
+  echo "Usage: $0 <service> <service name> [branch/tag]"
   echo
   echo "Current settings:"
   echo "- Source      · ${DEPLOY_SOURCE}"
@@ -26,4 +26,10 @@ if [ $# -ne 2 ]; then
 fi
 
 echo "deploying ..."
-git clone "${DEPLOY_SOURCE}/${1}" "${DEPLOY_DESTINATION}/$2"
+git clone "${DEPLOY_SOURCE}/${1}" "${DEPLOY_DESTINATION}/${2}"
+
+if [ $# -eq 3 ]; then
+  pushd "${DEPLOY_DESTINATION}/${2}"
+  git checkout "${3}"
+  popd
+fi