init snowflake importer

README.md

@@ -829,6 +829,16 @@ For example:
 | `role`               | `DATACONTRACT_SNOWFLAKE_ROLE`               |
 | `connection_timeout` | `DATACONTRACT_SNOWFLAKE_CONNECTION_TIMEOUT` |
 
+##### EV Authentication options
+
+| Soda optionnal parameter | Environment Variable                            |
+|--------------------------|-------------------------------------------------|
+| `authenticator`          | `DATACONTRACT_SNOWFLAKE_AUTHENTICATOR`          |
+| `private_key`            | `DATACONTRACT_SNOWFLAKE_PRIVATE_KEY`            |
+| `private_key_passphrase` | `DATACONTRACT_SNOWFLAKE_PRIVATE_KEY_PASSPHRASE` |
+| `private_key_path`       | `DATACONTRACT_SNOWFLAKE_PRIVATE_KEY_PATH`       |
+
+
 Beware, that parameters:
 * `account`
 * `database`
@@ -1619,6 +1629,7 @@ For more information about the Excel template structure, visit the [ODCS Excel T
 │                                                                       [default: None]            │
 │    --source                                 TEXT                      The path to the file that  │
 │                                                                       should be imported.        │
+│                                                                       also snowflake account     │
 │                                                                       [default: None]            │
 │    --dialect                                TEXT                      The SQL dialect to use     │
 │                                                                       when importing SQL files,  │
@@ -1682,6 +1693,7 @@ For more information about the Excel template structure, visit the [ODCS Excel T
 │                                                                       [default: None]            │
 │    --id                                     TEXT                      The identifier for the the │
 │                                                                       data contract.             │
+│    --database                               TEXT                      Snowflake target database  │
 │                                                                       [default: None]            │
 │    --debug                    --no-debug                              Enable debug logging       │
 │                                                                       [default: no-debug]        │
@@ -1897,6 +1909,20 @@ Example:
 datacontract import --format protobuf --source "test.proto"
 ```
 
+#### snowflake
+
+Importing from snowflake schema. Specify snowflake workspace account in `source` parameter, database name `database` and schema in `schema`. 
+Multiple authentification are supported, 
+login/password using the `DATACONTRACT_SNOWFLAKE_ ...` test environement variable are setup,
+MFA using external browser is selected when `DATACONTRACT_SNOWFLAKE_PASSWORD` is missing
+TOML file authentification using the default profile when `SNOWFLAKE_DEFAULT_CONNECTION_NAME` environment variable is defined
+
+Example:
+
+```bash
+datacontract import --format snowflake --source account.canada-central.azure --database databaseName --schema schemaName
+```
+
 
 ### catalog
 ```

datacontract/cli.py

@@ -445,6 +445,10 @@ def import_(
         Optional[str],
         typer.Option(help="The identifier for the the data contract."),
     ] = None,
+    database: Annotated[
+        Optional[str],
+        typer.Option(help="The snowflake database name."),
+    ] = None,
     debug: debug_option = None,
 ):
     """
@@ -469,6 +473,7 @@ def import_(
         iceberg_table=iceberg_table,
         owner=owner,
         id=id,
+        database=database,
     )
     if output is None:
         console.print(result.to_yaml(), markup=False, soft_wrap=True)

datacontract/imports/importer.py

@@ -38,6 +38,7 @@ class ImportFormat(str, Enum):
     csv = "csv"
     protobuf = "protobuf"
     excel = "excel"
+    snowflake = "snowflake"
 
     @classmethod
     def get_supported_formats(cls):

datacontract/imports/importer_factory.py

@@ -119,7 +119,11 @@ def load_module_class(module_path, class_name):
     module_path="datacontract.imports.excel_importer",
     class_name="ExcelImporter",
 )
-
+importer_factory.register_lazy_importer(
+    name=ImportFormat.snowflake,
+    module_path="datacontract.imports.snowflake_importer",
+    class_name="SnowflakeImporter",
+)
 
 importer_factory.register_lazy_importer(
     name=ImportFormat.json,