feat: ✨ Added Sqlite reader

cmd/relspec/convert.go

@@ -20,6 +20,7 @@ import (
 	"git.warky.dev/wdevs/relspecgo/pkg/readers/json"
 	"git.warky.dev/wdevs/relspecgo/pkg/readers/pgsql"
 	"git.warky.dev/wdevs/relspecgo/pkg/readers/prisma"
+	"git.warky.dev/wdevs/relspecgo/pkg/readers/sqlite"
 	"git.warky.dev/wdevs/relspecgo/pkg/readers/typeorm"
 	"git.warky.dev/wdevs/relspecgo/pkg/readers/yaml"
 	"git.warky.dev/wdevs/relspecgo/pkg/writers"
@@ -71,6 +72,7 @@ Input formats:
   - prisma: Prisma schema files (.prisma)
   - typeorm: TypeORM entity files (TypeScript)
   - pgsql: PostgreSQL database (live connection)
+  - sqlite: SQLite database file
 
 Output formats:
   - dbml: DBML schema files
@@ -87,12 +89,18 @@ Output formats:
   - pgsql: PostgreSQL SQL schema
   - sqlite: SQLite SQL schema (with automatic schema flattening)
 
-PostgreSQL Connection String Examples:
-  postgres://username:password@localhost:5432/database_name
-  postgres://username:password@localhost/database_name
-  postgresql://user:pass@host:5432/dbname?sslmode=disable
-  postgresql://user:pass@host/dbname?sslmode=require
-  host=localhost port=5432 user=username password=pass dbname=mydb sslmode=disable
+Connection String Examples:
+  PostgreSQL:
+    postgres://username:password@localhost:5432/database_name
+    postgres://username:password@localhost/database_name
+    postgresql://user:pass@host:5432/dbname?sslmode=disable
+    postgresql://user:pass@host/dbname?sslmode=require
+    host=localhost port=5432 user=username password=pass dbname=mydb sslmode=disable
+
+  SQLite:
+    /path/to/database.db
+    ./relative/path/database.sqlite
+    database.db
 
 
 Examples:
@@ -138,14 +146,22 @@ Examples:
 
   # Convert Bun models directory to JSON
   relspec convert --from bun --from-path ./models \
-                  --to json --to-path schema.json`,
+                  --to json --to-path schema.json
+
+  # Convert SQLite database to JSON
+  relspec convert --from sqlite --from-path database.db \
+                  --to json --to-path schema.json
+
+  # Convert SQLite to PostgreSQL SQL
+  relspec convert --from sqlite --from-path database.db \
+                  --to pgsql --to-path schema.sql`,
 	RunE: runConvert,
 }
 
 func init() {
-	convertCmd.Flags().StringVar(&convertSourceType, "from", "", "Source format (dbml, dctx, drawdb, graphql, json, yaml, gorm, bun, drizzle, prisma, typeorm, pgsql)")
+	convertCmd.Flags().StringVar(&convertSourceType, "from", "", "Source format (dbml, dctx, drawdb, graphql, json, yaml, gorm, bun, drizzle, prisma, typeorm, pgsql, sqlite)")
 	convertCmd.Flags().StringVar(&convertSourcePath, "from-path", "", "Source file path (for file-based formats)")
-	convertCmd.Flags().StringVar(&convertSourceConn, "from-conn", "", "Source connection string (for database formats)")
+	convertCmd.Flags().StringVar(&convertSourceConn, "from-conn", "", "Source connection string (for pgsql) or file path (for sqlite)")
 
 	convertCmd.Flags().StringVar(&convertTargetType, "to", "", "Target format (dbml, dctx, drawdb, graphql, json, yaml, gorm, bun, drizzle, prisma, typeorm, pgsql)")
 	convertCmd.Flags().StringVar(&convertTargetPath, "to-path", "", "Target output path (file or directory)")
@@ -293,6 +309,17 @@ func readDatabaseForConvert(dbType, filePath, connString string) (*models.Databa
 		}
 		reader = graphql.NewReader(&readers.ReaderOptions{FilePath: filePath})
 
+	case "sqlite", "sqlite3":
+		// SQLite can use either file path or connection string
+		dbPath := filePath
+		if dbPath == "" {
+			dbPath = connString
+		}
+		if dbPath == "" {
+			return nil, fmt.Errorf("file path or connection string is required for SQLite format")
+		}
+		reader = sqlite.NewReader(&readers.ReaderOptions{FilePath: dbPath})
+
 	default:
 		return nil, fmt.Errorf("unsupported source format: %s", dbType)
 	}