refactor: simplify build paths func and better slice handling

.env.example

@@ -17,11 +17,11 @@ TINYAUTH_SERVER_ADDRESS=0.0.0.0
 # The path to the Unix socket.
 TINYAUTH_SERVER_SOCKETPATH=
 # List of allowed IPs or CIDR ranges.
-TINYAUTH_AUTH_IP_ALLOW=[]
+TINYAUTH_AUTH_IP_ALLOW=
 # List of blocked IPs or CIDR ranges.
-TINYAUTH_AUTH_IP_BLOCK=[]
+TINYAUTH_AUTH_IP_BLOCK=
 # Comma-separated list of users (username:hashed_password).
-TINYAUTH_AUTH_USERS=[]
+TINYAUTH_AUTH_USERS=
 # Path to the users file.
 TINYAUTH_AUTH_USERSFILE=
 # Enable secure cookies.
@@ -35,7 +35,7 @@ TINYAUTH_AUTH_LOGINTIMEOUT=300
 # Maximum login retries.
 TINYAUTH_AUTH_LOGINMAXRETRIES=3
 # Comma-separated list of trusted proxy addresses.
-TINYAUTH_AUTH_TRUSTEDPROXIES=[]
+TINYAUTH_AUTH_TRUSTEDPROXIES=
 # The domain of the app.
 TINYAUTH_APPS_[NAME]_CONFIG_DOMAIN=
 # Comma-separated list of allowed users.
@@ -47,13 +47,13 @@ TINYAUTH_APPS_[NAME]_OAUTH_WHITELIST=
 # Comma-separated list of required OAuth groups.
 TINYAUTH_APPS_[NAME]_OAUTH_GROUPS=
 # List of allowed IPs or CIDR ranges.
-TINYAUTH_APPS_[NAME]_IP_ALLOW=[]
+TINYAUTH_APPS_[NAME]_IP_ALLOW=
 # List of blocked IPs or CIDR ranges.
-TINYAUTH_APPS_[NAME]_IP_BLOCK=[]
+TINYAUTH_APPS_[NAME]_IP_BLOCK=
 # List of IPs or CIDR ranges that bypass authentication.
-TINYAUTH_APPS_[NAME]_IP_BYPASS=[]
+TINYAUTH_APPS_[NAME]_IP_BYPASS=
 # Custom headers to add to the response.
-TINYAUTH_APPS_[NAME]_RESPONSE_HEADERS=[]
+TINYAUTH_APPS_[NAME]_RESPONSE_HEADERS=
 # Basic auth username.
 TINYAUTH_APPS_[NAME]_RESPONSE_BASICAUTH_USERNAME=
 # Basic auth password.
@@ -67,7 +67,7 @@ TINYAUTH_APPS_[NAME]_PATH_BLOCK=
 # Comma-separated list of required LDAP groups.
 TINYAUTH_APPS_[NAME]_LDAP_GROUPS=
 # Comma-separated list of allowed OAuth domains.
-TINYAUTH_OAUTH_WHITELIST=[]
+TINYAUTH_OAUTH_WHITELIST=
 # The OAuth provider to use for automatic redirection.
 TINYAUTH_OAUTH_AUTOREDIRECT=
 # OAuth client ID.
@@ -77,7 +77,7 @@ TINYAUTH_OAUTH_PROVIDERS_[NAME]_CLIENTSECRET=
 # Path to the file containing the OAuth client secret.
 TINYAUTH_OAUTH_PROVIDERS_[NAME]_CLIENTSECRETFILE=
 # OAuth scopes.
-TINYAUTH_OAUTH_PROVIDERS_[NAME]_SCOPES=[]
+TINYAUTH_OAUTH_PROVIDERS_[NAME]_SCOPES=
 # OAuth redirect URL.
 TINYAUTH_OAUTH_PROVIDERS_[NAME]_REDIRECTURL=
 # OAuth authorization URL.
@@ -103,7 +103,7 @@ TINYAUTH_OIDC_CLIENTS_[NAME]_CLIENTSECRET=
 # Path to the file containing the OIDC client secret.
 TINYAUTH_OIDC_CLIENTS_[NAME]_CLIENTSECRETFILE=
 # List of trusted redirect URIs.
-TINYAUTH_OIDC_CLIENTS_[NAME]_TRUSTEDREDIRECTURIS=[]
+TINYAUTH_OIDC_CLIENTS_[NAME]_TRUSTEDREDIRECTURIS=
 # Client name in UI.
 TINYAUTH_OIDC_CLIENTS_[NAME]_NAME=
 # The title of the UI.

gen/gen_env.go

@@ -31,11 +31,13 @@ func generateExampleEnv() {
 	err := os.Remove(".env.example")
 	if err != nil {
 		slog.Error("failed to remove example env file", "error", err)
+		os.Exit(1)
 	}
 
 	err = os.WriteFile(".env.example", compiled, 0644)
 	if err != nil {
 		slog.Error("failed to write example env file", "error", err)
+		os.Exit(1)
 	}
 }
 
@@ -48,20 +50,13 @@ func buildPaths(parent reflect.Type, parentValue reflect.Value, parentPath strin
 		case reflect.Struct:
 			childPath := parentPath + strings.ToUpper(field.Name) + "_"
 			buildPaths(fieldType, fieldValue, childPath, paths)
-		case reflect.Bool:
-			buildPath(field, fieldValue, parentPath, paths)
-		case reflect.String:
-			buildPath(field, fieldValue, parentPath, paths)
-		case reflect.Slice:
-			buildPath(field, fieldValue, parentPath, paths)
-		case reflect.Int:
-			buildPath(field, fieldValue, parentPath, paths)
 		case reflect.Map:
 			buildMapPaths(field, parentPath, paths)
+		case reflect.Bool, reflect.String, reflect.Slice, reflect.Int:
+			buildPath(field, fieldValue, parentPath, paths)
 		default:
 			slog.Info("unknown type", "type", fieldType.Kind())
 		}
-
 	}
 }