Merge pull request #5 from nside/spec-cli

Add spec command-line

Author: nside

README.md

@@ -19,7 +19,7 @@ pip install sqlite2rest
 You can use SQLite2REST from the command line by providing the path to your SQLite database:
 
 ```
-sqlite2rest /path/to/database.db
+sqlite2rest serve /path/to/database.db
 ```
 
 
@@ -37,6 +37,12 @@ For each table in the database, the following endpoints are available:
 - `PUT /<table>/<id>`: Update an existing record in the table. The data for the record should be provided as JSON in the request body.
 - `DELETE /<table>/<id>`: Delete an existing record from the table.
 
+You can also generate an OpenAPI specification from an SQLite database:
+
+```
+sqlite2rest spec /path/to/database.db
+```
+
 ## Contributing
 
 Contributions are welcome! Please feel free to submit a pull request.

sqlite2rest/__main__.py

@@ -1,17 +1,37 @@
 import argparse
 from .app import create_app
+from .database import Database
+from .openapi import get_openapi_spec
 
 def main():
+    # Create the top-level parser
+    parser = argparse.ArgumentParser(description='SQLite2REST commands.')
+    subparsers = parser.add_subparsers(dest='command')
+
+    # Create the parser for the "serve" command
+    parser_serve = subparsers.add_parser('serve', help='Start a Flask server for an SQLite database.')
+    parser_serve.add_argument('database', help='The path to the SQLite database.')
+
+    # Create the parser for the "spec" command
+    parser_spec = subparsers.add_parser('spec', help='Generate OpenAPI spec from SQLite database.')
+    parser_spec.add_argument('database', help='The path to the SQLite database.')
+
     # Parse command-line arguments
-    parser = argparse.ArgumentParser(description='Start a Flask server for an SQLite database.')
-    parser.add_argument('database', help='The path to the SQLite database.')
     args = parser.parse_args()
 
-    # Create the Flask app
-    app = create_app(args.database)
-
-    # Run the Flask app
-    app.run()
+    # Execute the appropriate command
+    if args.command == 'spec':
+        # Create the Flask app
+        app = create_app(args.database)
+        
+        # Create an application context
+        with app.app_context():
+            # Generate and print the OpenAPI spec
+            print(get_openapi_spec(Database(args.database)))
+    elif args.command == 'serve':
+        # Create and run the Flask app
+        app = create_app(args.database)
+        app.run()
 
 if __name__ == '__main__':
     main()