feat: auto-create database directory if missing (#510)

cmd/root.go

@@ -66,7 +66,7 @@ func (c *rootCmd) Register() {
 		{"ldap-insecure", false, "Skip certificate verification for the LDAP server."},
 		{"ldap-search-filter", "(uid=%s)", "LDAP search filter for user lookup."},
 		{"resources-dir", "/data/resources", "Path to a directory containing custom resources (e.g. background image)."},
-		{"database-path", "/data/tinyauth.db", "Path to the Sqlite database file."},
+		{"database-path", "/data/tinyauth.db", "Path to the Sqlite database file. Directory will be created if it doesn't exist."},
 		{"trusted-proxies", "", "Comma separated list of trusted proxies (IP addresses or CIDRs) for correct client IP detection."},
 		{"disable-analytics", false, "Disable anonymous version collection."},
 		{"disable-resources", false, "Disable the resources server."},

internal/config/config.go

@@ -37,7 +37,7 @@ type Config struct {
 	LdapInsecure          bool   `mapstructure:"ldap-insecure"`
 	LdapSearchFilter      string `mapstructure:"ldap-search-filter"`
 	ResourcesDir          string `mapstructure:"resources-dir"`
-	DatabasePath          string `mapstructure:"database-path" validate:"required"`
+	DatabasePath          string `mapstructure:"database-path"`
 	TrustedProxies        string `mapstructure:"trusted-proxies"`
 	DisableAnalytics      bool   `mapstructure:"disable-analytics"`
 	DisableResources      bool   `mapstructure:"disable-resources"`

internal/service/database_service.go

@@ -2,6 +2,9 @@ package service
 
 import (
 	"database/sql"
+	"fmt"
+	"os"
+	"path/filepath"
 	"tinyauth/internal/assets"
 
 	"github.com/glebarez/sqlite"
@@ -27,7 +30,17 @@ func NewDatabaseService(config DatabaseServiceConfig) *DatabaseService {
 }
 
 func (ds *DatabaseService) Init() error {
-	gormDB, err := gorm.Open(sqlite.Open(ds.config.DatabasePath), &gorm.Config{})
+	dbPath := ds.config.DatabasePath
+	if dbPath == "" {
+		dbPath = "/data/tinyauth.db"
+	}
+
+	dir := filepath.Dir(dbPath)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("failed to create database directory %s: %w", dir, err)
+	}
+
+	gormDB, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
 
 	if err != nil {
 		return err