added config-path option to setup.sh script (Closes: #698)

* added config-path option to setup.sh script

setup.sh

@@ -11,6 +11,7 @@ INFO=$(docker ps \
 
 IMAGE_NAME=$(echo $INFO | awk '{print $1}')
 CONTAINER_NAME=$(echo $INFO | awk '{print $2}')
+CONFIG_PATH="$(pwd)/config"
 
 if [ -z "$IMAGE_NAME" ]; then
   IMAGE_NAME=tvial/docker-mailserver:latest
@@ -38,6 +39,8 @@ OPTIONS:
                     'tvial/docker-mailserver:latest'.
   -c CONTAINER_NAME The name of the running container.
 
+  -p PATH           config folder path (default: $(pwd)/config)
+
 SUBCOMMANDS:
 
   email:
@@ -84,7 +87,7 @@ _docker_image() {
   fi
     docker run \
       --rm \
-      -v "$(pwd)/config":/tmp/docker-mailserver \
+      -v "$CONFIG_PATH":/tmp/docker-mailserver \
       -ti "$IMAGE_NAME" $@
 }
 
@@ -97,7 +100,7 @@ _docker_container() {
   fi
 }
 
-while getopts ":c:i:" OPT; do
+while getopts ":c:i:p:" OPT; do
   case $OPT in
     c)
       CONTAINER_NAME="$OPTARG"
@@ -105,6 +108,21 @@ while getopts ":c:i:" OPT; do
     i)
       IMAGE_NAME="$OPTARG"
       ;;
+    p)
+      case "$OPTARG" in
+      /*)
+          CONFIG_PATH="$OPTARG"
+          ;;
+      *)
+          CONFIG_PATH="$(pwd)/$OPTARG"
+          ;;
+      esac
+      if [ ! -d "$CONFIG_PATH" ]; then
+        echo "Directory doesn't exist"
+        _usage
+        exit 1
+      fi
+      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      ;;