Fix tracking issues with .env

.gitignore

@@ -1 +1 @@
-.env
+config

README.md

@@ -34,8 +34,8 @@ That's it! All the setup is handled for you. Check out the [official LSB documen
 ## Notes
 
 - If using WSL with Windows, make sure [the project is stored in the WSL file system](https://learn.microsoft.com/en-us/windows/wsl/filesystems#file-storage-and-performance-across-file-systems) for best performance.
-- To facilitate automatically generating secure database passwords and simplify the setup process, the `.env` file is intentionally empty and untracked by Git.
-  - **Optional** - You can manually populate this _before_ building the containers with these variables:
+- Secure database passwords and a default user and database name are generated into `config/.env` to simplify the setup process.
+  - **Optional** - You can manually create this _before_ building the containers with these variables:
     ```
     MARIADB_DATABASE=
     MARIADB_USER=

docker-compose.yml

@@ -1,13 +1,13 @@
 x-common: &common # Configs used by more than one service.
   image: lsd_service
   pull_policy: never
-  env_file: .env # Automatically generated by MariaDB service entrypoint.
   entrypoint: ["/entrypoint.sh"] # Copies the MariaDB env vars into corresponding LSB settings.
   environment:
     XI_NETWORK_HTTP_HOST: 0.0.0.0
     XI_NETWORK_ZMQ_IP: world
     XI_NETWORK_SQL_HOST: database
   volumes: # YAML merge can't be used with sequences, so bind everything here. (SEE NOTE ABOUT WSL IN README!)
+    - ./config:/config
     - ./.git:/.git               # Since LSB is a submodule, we want to preserve
     - ./server/.git:/server/.git # the directory structure inside the container.
     - ./server/log:/server/log
@@ -26,7 +26,7 @@ services:
     entrypoint: ["/mariadb-entrypoint.sh"]
     restart: always
     volumes:
-      - ./.env:/env/.env
+      - ./config:/config
       - ./mariadb-entrypoint.sh:/mariadb-entrypoint.sh # Custom entrypoint to generate .env.
       - ./server/sql:/docker-entrypoint-initdb.d # Initializes the database.
       - database:/var/lib/mysql

entrypoint.sh

@@ -1,6 +1,9 @@
 #!/bin/bash
 
 # Export XI_ variables from corresponding MARIADB_ variables.
+set -a
+source "/config/.env"
+set +a
 export XI_NETWORK_SQL_DATABASE=$MARIADB_DATABASE
 export XI_NETWORK_SQL_LOGIN=$MARIADB_USER
 export XI_NETWORK_SQL_PASSWORD="$MARIADB_PASSWORD"

mariadb-entrypoint.sh

@@ -1,9 +1,9 @@
 #!/bin/bash
 
-ENV_FILE="/env/.env"
+ENV_FILE="/config/.env"
 
-# Set default values if the .env file is empty.
-if [ ! -s "$ENV_FILE" ]; then
+# Set default values if the .env file doesn't exist.
+if [ ! -e "$ENV_FILE" ]; then
     MARIADB_DATABASE=xidb
     MARIADB_USER=xiadmin
     XI_NETWORK_ENABLE_HTTP=1