improve the setup.sh

* check if Rocket.toml exists and if it contains the required fields
* update instructions to run bash
* quote the output of pwd to handle pathes withs spaces in them

Thanks to EzekTec in #73

docs/DEVELOPMENT.md

@@ -4,7 +4,7 @@
 * Start the Docker container that runs the SurrealDB
 
 ```
-./tools/setup.sh
+bash tools/setup.sh
 ```
 
 * Note: At the end of the development session you might want to stop the docker container.

tools/setup.sh

@@ -1,12 +1,43 @@
+set -e
 mkdir -p backup
+
+if [ ! -f Rocket.toml ]; then
+    echo "Rocket.toml not found!"
+    exit 1
+fi
+
 database=$(cat Rocket.toml | grep "database_name " | cut -d'=' -f2 | sed  's/ //g' | sed  's/"//g')
 namespace=$(cat Rocket.toml | grep "database_namespace" | cut -d'=' -f2 | sed  's/ //g' | sed  's/"//g')
 username=$(cat Rocket.toml | grep "database_username" | cut -d'=' -f2 | sed  's/ //g' | sed  's/"//g')
 password=$(cat Rocket.toml | grep "database_password" | cut -d'=' -f2 | sed  's/ //g' | sed  's/"//g')
+
+if [ "$database" == "" ]; then
+    echo "database_name is missing from Rocket.toml"
+    exit 1
+fi
+
+if [ "$namespace" == "" ]; then
+    echo "database_namespace is missing from Rocket.toml"
+    exit 1
+fi
+
+if [ "$username" == "" ]; then
+    echo "database_username is missing from Rocket.toml"
+    exit 1
+fi
+
+if [ "$password" == "" ]; then
+    echo "database_password is missing from Rocket.toml"
+    exit 1
+fi
+
+
 echo $namespace
 echo $database
 #echo $username
 #echo $password
+
+set -x
 docker volume create my-surreal-db
-docker run --detach --restart always --name surrealdb -p 127.0.0.1:8000:8000 --user root -v$(pwd):/external -v my-surreal-db:/database surrealdb/surrealdb:v2.0.4 start --user $username --pass $password --log trace file://database
+docker run --detach --restart always --name surrealdb -p 127.0.0.1:8000:8000 --user root -v"$(pwd)":/external -v my-surreal-db:/database surrealdb/surrealdb:v2.0.4 start --user $username --pass $password --log trace file://database