Fix scan

README.md

@@ -77,7 +77,9 @@ After modifying the `entrypoint.py` as needed, using any dependencies you add in
 4. The SDK automatically packages all dependencies when you run `datacustomcode zip`
 
 ```zsh
+cd my_package
 datacustomcode scan ./payload/entrypoint.py
+datacustomcode zip --path ./payload
 datacustomcode deploy --path ./payload --name my_custom_script --cpu-size CPU_L
 ```
 
@@ -183,7 +185,7 @@ Options:
 
 
 #### `datacustomcode init`
-Initialize a new development environment with a template.
+Initialize a new development environment with a code package template.
 
 Argument:
 - `DIRECTORY`: Directory to create project in (default: ".")
@@ -213,19 +215,19 @@ Options:
 
 
 #### `datacustomcode zip`
-Zip a transformation job in preparation to upload to Data Cloud.
+Zip a transformation job in preparation to upload to Data Cloud. Make sure to change directory into your code package folder (e.g., `my_package`) before running this command.
 
 Options:
-- `--path TEXT`: Path to the code directory (default: ".")
+- `--path TEXT`: Path to the code directory i.e. the payload folder (default: ".")
 - `--network TEXT`: docker network (default: "default")
 
 
 #### `datacustomcode deploy`
-Deploy a transformation job to Data Cloud.
+Deploy a transformation job to Data Cloud. Note that this command takes care of creating a zip file from provided path before deployment. Make sure to change directory into your code package folder (e.g., `my_package`) before running this command.
 
 Options:
 - `--profile TEXT`: Credential profile name (default: "default")
-- `--path TEXT`: Path to the code directory (default: ".")
+- `--path TEXT`: Path to the code directory i.e. the payload folder (default: ".")
 - `--name TEXT`: Name of the transformation job [required]
 - `--version TEXT`: Version of the transformation job (default: "0.0.1")
 - `--description TEXT`: Description of the transformation job (default: "")

src/datacustomcode/deploy.py

@@ -91,9 +91,29 @@ def _make_api_call(
     logger.debug(f"Request params: {kwargs}")
 
     response = requests.request(method=method, url=url, headers=headers, **kwargs)
-    json_response = response.json()
     if response.status_code >= 400:
-        logger.debug(f"Error Response: {json_response}")
+        logger.debug(f"Error Response Status: {response.status_code}")
+        logger.debug(f"Error Response Headers: {response.headers}")
+        logger.debug(f"Error Response Text: {response.text[:500]}")
+
+    if not response.text or response.text.strip() == "":
+        response.raise_for_status()
+        raise ValueError(
+            f"Received empty response from {method} {url}. "
+            f"Status code: {response.status_code}"
+        )
+
+    try:
+        json_response = response.json()
+    except requests.exceptions.JSONDecodeError as e:
+        logger.error(f"Failed to parse JSON response. Status: {response.status_code}")
+        logger.error(f"Response text: {response.text[:500]}")
+        raise ValueError(
+            f"Invalid JSON response from {method} {url}. "
+            f"Status code: {response.status_code}, "
+            f"Response: {response.text[:200]}"
+        ) from e
+
     response.raise_for_status()
     assert isinstance(
         json_response, dict

src/datacustomcode/scan.py

@@ -15,6 +15,8 @@
 from __future__ import annotations
 
 import ast
+import json
+import logging
 import os
 import sys
 from typing import (
@@ -29,12 +31,14 @@
 
 from datacustomcode.version import get_version
 
+logger = logging.getLogger(__name__)
+
 DATA_ACCESS_METHODS = ["read_dlo", "read_dmo", "write_to_dlo", "write_to_dmo"]
 
 DATA_TRANSFORM_CONFIG_TEMPLATE = {
     "sdkVersion": get_version(),
     "entryPoint": "",
-    "dataspace": "default",
+    "dataspace": "",
     "permissions": {
         "read": {},
         "write": {},
@@ -232,6 +236,40 @@ def dc_config_json_from_file(file_path: str) -> dict[str, Any]:
     config = DATA_TRANSFORM_CONFIG_TEMPLATE.copy()
     config["entryPoint"] = file_path.rpartition("/")[-1]
 
+    file_dir = os.path.dirname(file_path)
+    config_json_path = os.path.join(file_dir, "config.json")
+
+    if os.path.exists(config_json_path) and os.path.isfile(config_json_path):
+        try:
+            with open(config_json_path, "r") as f:
+                existing_config = json.load(f)
+
+            if "dataspace" in existing_config:
+                dataspace_value = existing_config["dataspace"]
+                if not dataspace_value or (
+                    isinstance(dataspace_value, str) and dataspace_value.strip() == ""
+                ):
+                    logger.error(
+                        f"dataspace in {config_json_path} is empty or None."
+                        f"Updating config file to use dataspace 'default'."
+                    )
+                    config["dataspace"] = "default"
+                else:
+                    config["dataspace"] = dataspace_value
+            else:
+                raise ValueError(
+                    f"dataspace must be defined in {config_json_path}. "
+                    f"Please add a 'dataspace' field to the config.json file."
+                )
+        except json.JSONDecodeError as e:
+            raise ValueError(
+                f"Failed to parse JSON from {config_json_path}: {e}"
+            ) from e
+        except OSError as e:
+            raise OSError(f"Failed to read config file {config_json_path}: {e}") from e
+    else:
+        config["dataspace"] = "default"
+
     read: dict[str, list[str]] = {}
     if output.read_dlo:
         read["dlo"] = list(output.read_dlo)
@@ -244,4 +282,5 @@ def dc_config_json_from_file(file_path: str) -> dict[str, Any]:
         write["dmo"] = list(output.write_to_dmo)
 
     config["permissions"] = {"read": read, "write": write}
+
     return config

tests/test_scan.py

@@ -358,6 +358,175 @@ def test_dmo_to_dmo_config(self):
         finally:
             os.remove(temp_path)
 
+    @patch(
+        "datacustomcode.scan.DATA_TRANSFORM_CONFIG_TEMPLATE",
+        {
+            "sdkVersion": "1.2.3",
+            "entryPoint": "",
+            "dataspace": "",
+            "permissions": {
+                "read": {},
+                "write": {},
+            },
+        },
+    )
+    def test_preserves_existing_dataspace(self):
+        """Test that existing dataspace value is preserved when config.json exists."""
+        import json
+
+        content = textwrap.dedent(
+            """
+            from datacustomcode.client import Client
+
+            client = Client()
+            df = client.read_dlo("input_dlo")
+            client.write_to_dlo("output_dlo", df, "overwrite")
+        """
+        )
+        temp_path = create_test_script(content)
+        file_dir = os.path.dirname(temp_path)
+        config_path = os.path.join(file_dir, "config.json")
+
+        try:
+            # Create an existing config.json with a custom dataspace
+            existing_config = {
+                "sdkVersion": "1.0.0",
+                "entryPoint": "test.py",
+                "dataspace": "my_custom_dataspace",
+                "permissions": {
+                    "read": {"dlo": ["old_dlo"]},
+                    "write": {"dlo": ["old_output"]},
+                },
+            }
+            with open(config_path, "w") as f:
+                json.dump(existing_config, f)
+
+            # Generate new config - should preserve dataspace
+            result = dc_config_json_from_file(temp_path)
+            assert result["dataspace"] == "my_custom_dataspace"
+            assert result["permissions"]["read"]["dlo"] == ["input_dlo"]
+            assert result["permissions"]["write"]["dlo"] == ["output_dlo"]
+        finally:
+            os.remove(temp_path)
+            if os.path.exists(config_path):
+                os.remove(config_path)
+
+    @patch(
+        "datacustomcode.scan.DATA_TRANSFORM_CONFIG_TEMPLATE",
+        {
+            "sdkVersion": "1.2.3",
+            "entryPoint": "",
+            "dataspace": "",
+            "permissions": {
+                "read": {},
+                "write": {},
+            },
+        },
+    )
+    def test_rejects_empty_dataspace(self):
+        """Test that empty dataspace value uses default and logs error."""
+        import json
+
+        content = textwrap.dedent(
+            """
+            from datacustomcode.client import Client
+
+            client = Client()
+            df = client.read_dlo("input_dlo")
+            client.write_to_dlo("output_dlo", df, "overwrite")
+        """
+        )
+        temp_path = create_test_script(content)
+        file_dir = os.path.dirname(temp_path)
+        config_path = os.path.join(file_dir, "config.json")
+
+        try:
+            # Create an existing config.json with empty dataspace
+            existing_config = {
+                "sdkVersion": "1.0.0",
+                "entryPoint": "test.py",
+                "dataspace": "",
+                "permissions": {
+                    "read": {"dlo": ["old_dlo"]},
+                    "write": {"dlo": ["old_output"]},
+                },
+            }
+            with open(config_path, "w") as f:
+                json.dump(existing_config, f)
+
+            # Should use "default" for empty dataspace (not raise error)
+            result = dc_config_json_from_file(temp_path)
+            assert result["dataspace"] == "default"
+            assert result["permissions"]["read"]["dlo"] == ["input_dlo"]
+            assert result["permissions"]["write"]["dlo"] == ["output_dlo"]
+        finally:
+            os.remove(temp_path)
+            if os.path.exists(config_path):
+                os.remove(config_path)
+
+    @patch(
+        "datacustomcode.scan.DATA_TRANSFORM_CONFIG_TEMPLATE",
+        {
+            "sdkVersion": "1.2.3",
+            "entryPoint": "",
+            "dataspace": "",
+            "permissions": {
+                "read": {},
+                "write": {},
+            },
+        },
+    )
+    def test_rejects_missing_dataspace(self):
+        """Test missing config.json uses default dataspace."""
+        content = textwrap.dedent(
+            """
+            from datacustomcode.client import Client
+
+            client = Client()
+            df = client.read_dlo("input_dlo")
+            client.write_to_dlo("output_dlo", df, "overwrite")
+        """
+        )
+        temp_path = create_test_script(content)
+
+        try:
+            # No existing config.json - should use "default" dataspace
+            result = dc_config_json_from_file(temp_path)
+            assert result["dataspace"] == "default"
+            assert result["permissions"]["read"]["dlo"] == ["input_dlo"]
+            assert result["permissions"]["write"]["dlo"] == ["output_dlo"]
+        finally:
+            os.remove(temp_path)
+
+    def test_raises_error_on_invalid_json(self):
+        """Test that invalid JSON in config.json raises an error."""
+
+        content = textwrap.dedent(
+            """
+            from datacustomcode.client import Client
+
+            client = Client()
+            df = client.read_dlo("input_dlo")
+            client.write_to_dlo("output_dlo", df, "overwrite")
+        """
+        )
+        temp_path = create_test_script(content)
+        file_dir = os.path.dirname(temp_path)
+        config_path = os.path.join(file_dir, "config.json")
+
+        try:
+            # Create an invalid JSON file
+            with open(config_path, "w") as f:
+                f.write("{ invalid json }")
+
+            # Should raise ValueError for invalid JSON
+            with pytest.raises(ValueError, match="Failed to parse JSON"):
+                dc_config_json_from_file(temp_path)
+        finally:
+            os.remove(temp_path)
+            if os.path.exists(config_path):
+                os.remove(config_path)
+
 
 class TestDataAccessLayerCalls:
     """Tests for the DataAccessLayerCalls class directly."""