Added validators (closes #59)

src/cpl_cli/validators/__init__.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+
+"""
+cpl-cli sh-edraft Common Python library CLI
+~~~~~~~~~~~~~~~~~~~
+
+sh-edraft Common Python library Command Line Interface
+
+:copyright: (c) 2020 - 2022 sh-edraft.de
+:license: MIT, see LICENSE for more details.
+
+"""
+
+__title__ = 'cpl_cli.validators'
+__author__ = 'Sven Heidemann'
+__license__ = 'MIT'
+__copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
+__version__ = '2022.6.3.dev6'
+
+from collections import namedtuple
+
+# imports:
+
+VersionInfo = namedtuple('VersionInfo', 'major minor micro')
+version_info = VersionInfo(major='2022', minor='6', micro='3.dev6')

src/cpl_cli/validators/project_validator.py

@@ -0,0 +1,18 @@
+from cpl_cli import Error
+from cpl_cli.configuration import WorkspaceSettings, ProjectSettings
+from cpl_core.configuration.validator_abc import ValidatorABC
+
+
+class ProjectValidator(ValidatorABC):
+
+    def __init__(self, workspace: WorkspaceSettings, project: ProjectSettings):
+        self._workspace = workspace
+        self._project = project
+
+        ValidatorABC.__init__(self)
+
+    def validate(self) -> bool:
+        result = self._project is not None or self._workspace is not None
+        if not result:
+            Error.error('The command requires to be run in an CPL project, but a project could not be found.')
+        return result

src/cpl_cli/validators/workspace_validator.py

@@ -0,0 +1,17 @@
+from cpl_cli import Error
+from cpl_cli.configuration import WorkspaceSettings
+from cpl_core.configuration.validator_abc import ValidatorABC
+
+
+class WorkspaceValidator(ValidatorABC):
+
+    def __init__(self, workspace: WorkspaceSettings):
+        self._workspace = workspace
+
+        ValidatorABC.__init__(self)
+
+    def validate(self) -> bool:
+        result = self._workspace is not None
+        if not result:
+            Error.error('The command requires to be run in an CPL workspace, but a workspace could not be found.')
+        return result