Cleans after itself in case the install fails.

Refs #1 and #4 (and hopefuly fixes them)

scripts/install

@@ -21,6 +21,27 @@ fi
 # Remove trailing "/" for next commands
 path=${path%/}
 
+# Configure database
+db_pwd=`sudo yunohost app initdb $db_user`
+sudo yunohost app setting $app mysqlpwd -v $db_pwd
+
+# Delete db, user dirs and conf if exit with an error
+# inspired from https://github.com/Kloadut/owncloud_ynh/blob/master/scripts/install#L37
+
+function exit_properly
+{
+    set +e
+    root_pwd=$(sudo cat /etc/yunohost/mysql)
+    mysql -u root -p$root_pwd -e "DROP DATABASE ihatemoney ; DROP USER $db_user ;"
+    sudo userdel ihatemoney
+    sudo rm -Rf /opt/yunohost/ihatemoney
+    sudo rm -Rf /etc/ihatemoney
+    sudo rm /etc/nginx/conf.d/$domain.d/ihatemoney.conf
+    sudo rm /etc/supervisor/conf.d/ihatemoney.conf
+    exit 1
+}
+trap exit_properly ERR
+
 # Save app settings
 sudo yunohost app setting $app domain -v $domain
 sudo yunohost app setting $app is_public -v "$is_public"
@@ -55,10 +76,6 @@ sudo install -o root -g root -m 644 \
      ../conf/supervisord.conf /etc/supervisor/conf.d/ihatemoney.conf
 sudo yunohost service add supervisor
 
-# Configure database
-db_pwd=`sudo yunohost app initdb $db_user`
-sudo yunohost app setting $app mysqlpwd -v $db_pwd
-
 # Configure ihatemoney
 sed -i "s@MY_SECRET_KEY@$secret_key@" ../conf/settings.py
 sed -i "s/MY_EMAIL/$mails_sender/" ../conf/settings.py