Add fusion commands to manage models in models space (#51)

singlestoredb/fusion/handlers/models.py

@@ -0,0 +1,250 @@
+#!/usr/bin/env python3
+import os
+from typing import Any
+from typing import Dict
+from typing import Optional
+
+from ..handler import SQLHandler
+from ..result import FusionSQLResult
+from .files import ShowFilesHandler
+from .utils import get_file_space
+
+
+class ShowModelsHandler(ShowFilesHandler):
+    """
+    SHOW MODELS
+        [ at_path ] [ <like> ]
+        [ <order-by> ]
+        [ <limit> ] [ recursive ] [ extended ];
+
+    # File path to list
+    at_path = AT '<path>'
+
+    # Should the listing be recursive?
+    recursive = RECURSIVE
+
+    # Should extended attributes be shown?
+    extended = EXTENDED
+
+    Description
+    -----------
+    Displays the list of models in models space.
+
+    Arguments
+    ---------
+    * ``<path>``: A path in the models space.
+    * ``<pattern>``: A pattern similar to SQL LIKE clause.
+      Uses ``%`` as the wildcard character.
+
+    Remarks
+    -------
+    * Use the ``LIKE`` clause to specify a pattern and return only the
+      files that match the specified pattern.
+    * The ``LIMIT`` clause limits the number of results to the
+      specified number.
+    * Use the ``ORDER BY`` clause to sort the results by the specified
+      key. By default, the results are sorted in the ascending order.
+    * The ``AT PATH`` clause specifies the path in the models
+      space to list the files from.
+    * To return more information about the files, use the ``EXTENDED``
+      clause.
+
+    Examples
+    --------
+    The following command lists the models::
+
+        SHOW MODELS;
+
+    The following command lists the models with additional information::
+
+        SHOW MODELS EXTENDED;
+
+    See Also
+    --------
+    * ``UPLOAD MODEL model_name FROM path``
+    * ``DOWNLOAD MODEL model_name``
+
+
+    """  # noqa: E501
+
+    def run(self, params: Dict[str, Any]) -> Optional[FusionSQLResult]:
+        params['file_location'] = 'MODELS'
+
+        return super().run(params)
+
+
+ShowModelsHandler.register(overwrite=True)
+
+
+class UploadModelHandler(SQLHandler):
+    """
+    UPLOAD MODEL model_name
+        FROM local_path [ overwrite ];
+
+    # Model Name
+    model_name = '<model-name>'
+
+    # Path to local file or directory
+    local_path = '<local-path>'
+
+    # Should an existing file be overwritten?
+    overwrite = OVERWRITE
+
+    Description
+    -----------
+    Uploads a file or folder to models space.
+
+    Arguments
+    ---------
+    * ``<model-name>``: Model name.
+    * ``<local-path>``: The path to the file or folder to upload in the local
+      directory.
+
+    Remarks
+    -------
+    * If the ``OVERWRITE`` clause is specified, any existing file at the
+      specified path in the models space is overwritten.
+
+    Examples
+    --------
+    The following command uploads a file to models space and overwrite any
+    existing files at the specified path::
+
+        UPLOAD MODEL model_name
+            FROM 'llama3/' OVERWRITE;
+
+    See Also
+    --------
+    * ``DOWNLOAD MODEL model_name``
+
+    """  # noqa: E501
+
+    def run(self, params: Dict[str, Any]) -> Optional[FusionSQLResult]:
+        params['file_location'] = 'MODELS'
+
+        model_name = params['model_name']
+        local_path = params['local_path']
+
+        file_space = get_file_space(params)
+
+        if os.path.isdir(local_path):
+            file_space.upload_folder(
+                local_path=local_path,
+                path=os.path.join(model_name, ''),
+                overwrite=params['overwrite'],
+            )
+        else:
+            file_space.upload_file(
+                local_path=local_path,
+                path=os.path.join(model_name, local_path),
+                overwrite=params['overwrite'],
+            )
+
+        return None
+
+
+UploadModelHandler.register(overwrite=True)
+
+
+class DownloadModelHandler(SQLHandler):
+    """
+    DOWNLOAD MODEL model_name
+        [ local_path ]
+        [ overwrite ];
+
+    # Model Name
+    model_name = '<model-name>'
+
+    # Path to local directory
+    local_path = TO '<local-path>'
+
+    # Should an existing directory be overwritten?
+    overwrite = OVERWRITE
+
+    Description
+    -----------
+    Download a model from models space.
+
+    Arguments
+    ---------
+    * ``<model-name>``: Model name to download in models space.
+    * ``<local-path>``: Specifies the path in the local directory
+      where the model is downloaded.
+
+    Remarks
+    -------
+    * If the ``OVERWRITE`` clause is specified, any existing file or folder at
+      the download location is overwritten.
+    * If ``<local-path>`` is not specified, the model is downloaded to the current location.
+
+    Examples
+    --------
+    The following command displays the contents of the file on the
+    standard output::
+
+        DOWNLOAD MODEL llama3;
+
+    The following command downloads a model to a specific location and
+    overwrites any existing models folder with the name ``local_llama3`` on the local storage::
+
+        DOWNLOAD MODEL llama3
+            TO 'local_llama3' OVERWRITE;
+
+    See Also
+    --------
+    * ``UPLOAD MODEL model_name FROM local_path``
+
+    """  # noqa: E501
+
+    def run(self, params: Dict[str, Any]) -> Optional[FusionSQLResult]:
+        params['file_location'] = 'MODELS'
+
+        file_space = get_file_space(params)
+
+        model_name = params['model_name']
+        file_space.download_folder(
+            path=os.path.join(model_name, ''),
+            local_path=params['local_path'] or model_name,
+            overwrite=params['overwrite'],
+        )
+
+        return None
+
+
+DownloadModelHandler.register(overwrite=True)
+
+
+class DropModelsHandler(SQLHandler):
+    """
+    DROP MODEL model_name;
+
+    # Model Name
+    model_name = '<model-name>'
+
+    Description
+    -----------
+    Deletes a model from models space.
+
+    Arguments
+    ---------
+    * ``<model-name>``: Model name to delete in models space.
+
+    Example
+    --------
+    The following commands deletes a model from a model space::
+
+        DROP MODEL llama3;
+
+    """  # noqa: E501
+
+    def run(self, params: Dict[str, Any]) -> Optional[FusionSQLResult]:
+        params['file_location'] = 'MODELS'
+        path = os.path.join(params['model_name'], '')
+
+        file_space = get_file_space(params)
+        file_space.removedirs(path=path)
+
+        return None
+
+
+DropModelsHandler.register(overwrite=True)

singlestoredb/fusion/handlers/utils.py

@@ -11,6 +11,7 @@
 from ...management.files import FilesManager
 from ...management.files import FileSpace
 from ...management.files import manage_files
+from ...management.files import MODELS_SPACE
 from ...management.files import PERSONAL_SPACE
 from ...management.files import SHARED_SPACE
 from ...management.workspace import StarterWorkspace
@@ -296,15 +297,14 @@ def get_file_space(params: Dict[str, Any]) -> FileSpace:
     file_location = params.get('file_location')
     if file_location:
         file_location_lower_case = file_location.lower()
-        if (
-            file_location_lower_case != PERSONAL_SPACE and
-            file_location_lower_case != SHARED_SPACE
-        ):
-            raise ValueError(f'invalid file location: {file_location}')
 
         if file_location_lower_case == PERSONAL_SPACE:
             return manager.personal_space
         elif file_location_lower_case == SHARED_SPACE:
             return manager.shared_space
+        elif file_location_lower_case == MODELS_SPACE:
+            return manager.models_space
+        else:
+            raise ValueError(f'invalid file location: {file_location}')
 
     raise KeyError('no file space was specified')