Move package management code out of subproc.py

package_manager/messages.py

@@ -0,0 +1,73 @@
+from .bpkg import Repository
+
+class Message:
+    """Superclass for all message sent over pipes."""
+
+
+# Blender messages
+
+class BlenderMessage(Message):
+    """Superclass for all messages sent from Blender to the subprocess."""
+
+class Abort(BlenderMessage):
+    """Sent when the user requests abortion of a task."""
+
+
+# Subproc messages
+
+class SubprocMessage(Message):
+    """Superclass for all messages sent from the subprocess to Blender."""
+
+class Progress(SubprocMessage):
+    """Send from subprocess to Blender to report progress.
+
+    :ivar progress: the progress percentage, from 0-1.
+    """
+
+    def __init__(self, progress: float):
+        self.progress = progress
+
+class SubprocError(SubprocMessage):
+    """Superclass for all fatal error messages sent from the subprocess."""
+
+    def __init__(self, message: str):
+        self.message = message
+
+class SubprocWarning(SubprocMessage):
+    """Superclass for all non-fatal warning messages sent from the subprocess."""
+
+    def __init__(self, message: str):
+        self.message = message
+
+class InstallError(SubprocError):
+    """Sent when there was an error installing something."""
+
+class UninstallError(SubprocError):
+    """Sent when there was an error uninstalling something."""
+
+class FileConflictError(InstallError):
+    """Sent when installation would overwrite existing files."""
+
+    def __init__(self, message: str, conflicts: list):
+        self.message = message
+        self.conflicts = conflicts
+
+class DownloadError(SubprocMessage):
+    """Sent when there was an error downloading something."""
+
+    def __init__(self, status_code: int, description: str):
+        self.status_code = status_code
+        self.description = description
+
+class Success(SubprocMessage):
+    """Sent when an operation finished sucessfully."""
+
+class RepositoryResult(SubprocMessage):
+    """Sent when an operation returns a repository to be used on the parent process."""
+
+    def __init__(self, repository: Repository):
+        self.repository = repository
+
+class Aborted(SubprocMessage):
+    """Sent as response to Abort message."""
+