Validation ds106 (#4357)

* DS106

* pre commit

* added changelog

* revert

* fixed cr comment

* pre commit

* revert

* revert

* revert

.changelog/4357.yml

@@ -0,0 +1,4 @@
+changes:
+- description: Added DS106 to the new validation format. "Check if the description file exist and the name is valid"
+  type: feature
+pr_number: 4357

demisto_sdk/commands/validate/sdk_validation_config.toml

@@ -31,7 +31,7 @@ select = [
     "IN161", "IN162",
     "PB100", "PB101","PB103","PB104", "PB105", "PB118", "PB123",
     "DO100", "DO101", "DO102", "DO103", "DO104", "DO105", "DO106",
-    "DS100", "DS101", "DS105", "DS107",
+    "DS100", "DS101", "DS105", "DS106", "DS107",
     "SC100", "SC105", "SC106", "SC109",
     "RM101", "RN103", "RM104", "RM105", "RM106", "RM109", "RM113", "RM114",
     "CL100",

demisto_sdk/commands/validate/tests/DS_validators_test.py

@@ -197,3 +197,43 @@ def test_IsDescriptionContainsContribDetailsValidator_is_valid(
 
     is_valid = IsDescriptionContainsContribDetailsValidator().is_valid([integration])
     assert result_len == len(is_valid)
+
+
+@pytest.mark.parametrize(
+    "is_file_exist, result_len",
+    [
+        (
+            True,
+            0,
+        ),
+        (
+            False,
+            1,
+        ),
+    ],
+)
+def test_IsValidDescriptionNameValidator_is_valid(
+    is_file_exist,
+    result_len,
+):
+    """
+    Given
+    content_items iterables.
+            - Case 1: the description file exist.
+            - Case 2: the description file not exist.
+    When
+    - Calling the IsValidDescriptionNameValidator is valid function.
+    Then
+        - Make sure that the description file exist.
+        - Case 1: Shouldn't fail.
+        - Case 2: Should fail.
+    """
+    from demisto_sdk.commands.validate.validators.DS_validators.DS106_is_valid_description_name import (
+        IsValidDescriptionNameValidator,
+    )
+
+    integration = create_integration_object()
+    integration.description_file.exist = is_file_exist
+
+    is_valid = IsValidDescriptionNameValidator().is_valid([integration])
+    assert result_len == len(is_valid)

demisto_sdk/commands/validate/validators/DS_validators/DS106_is_valid_description_name.py

@@ -0,0 +1,45 @@
+from __future__ import annotations
+
+from typing import Iterable, List
+
+from demisto_sdk.commands.common.constants import (
+    GitStatuses,
+)
+from demisto_sdk.commands.content_graph.objects.integration import Integration
+from demisto_sdk.commands.content_graph.parsers.related_files import RelatedFileType
+from demisto_sdk.commands.validate.validators.base_validator import (
+    BaseValidator,
+    ValidationResult,
+)
+
+ContentTypes = Integration
+
+
+class IsValidDescriptionNameValidator(BaseValidator[ContentTypes]):
+    error_code = "DS106"
+    description = "Check if the description file exist and the name is valid."
+    rationale = (
+        "We want to make sure all integrations have all required documentation"
+        " and that the file name is according to our standards."
+    )
+    error_message = (
+        "The description's file is missing or the file name is invalid - "
+        "make sure the name looks like the following: {0}."
+    )
+
+    is_auto_fixable = False
+    expected_git_statuses = [GitStatuses.RENAMED, GitStatuses.ADDED]
+    related_file_type = [RelatedFileType.DESCRIPTION_File]
+
+    def is_valid(self, content_items: Iterable[ContentTypes]) -> List[ValidationResult]:
+        return [
+            ValidationResult(
+                validator=self,
+                message=self.error_message.format(
+                    content_item.description_file.file_path.name
+                ),
+                content_object=content_item,
+            )
+            for content_item in content_items
+            if (not content_item.description_file.exist)
+        ]