added DEBUG option to enable bash debugging

Changelog.md

@@ -11,6 +11,7 @@
 - complete rewrite of the README
 - add support for creating backups using `pg_basebackup`
 - removed `PG_LOCALE` option (doesn't work!)
+- added `DEBUG` option to enable bash debugging
 
 **9.4-2**
 - added replication options

docker-compose.yml

@@ -4,6 +4,7 @@ PostgreSQL:
   ports:
     - "5432:5432"
   environment:
+    - DEBUG=false
     - DB_USER=
     - DB_PASS=
     - DB_NAME=

entrypoint.sh

@@ -2,6 +2,8 @@
 set -e
 source ${PG_APP_HOME}/functions
 
+[[ ${DEBUG} == true ]] && set -x
+
 # allow arguments to be passed to postgres
 if [[ ${1:0:1} = '-' ]]; then
   EXTRA_ARGS="$@"