Build: better error message when rclone fails (#11796)

So, we were using incorrectly the exceptions, as we were passing a
message to them, but they were expecting a message_id, I guess what we
wanted is to have that error being show somewhere in the exception
message, so I added a field for that, but the notification itself will
show the generic error. And of course, there is now one message for
rclone failures.

closes #11544

readthedocs/doc_builder/environments.py

@@ -80,7 +80,10 @@ def __init__(
         self.user = user or settings.RTD_DOCKER_USER
         self._environment = environment.copy() if environment else {}
         if "PATH" in self._environment:
-            raise BuildAppError("'PATH' can't be set. Use bin_path")
+            raise BuildAppError(
+                BuildAppError.GENERIC_WITH_BUILD_ID,
+                exception_message="'PATH' can't be set. Use bin_path",
+            )
 
         self.build_env = build_env
         self.output = None
@@ -493,7 +496,10 @@ def run_command_class(
         if "bin_path" not in kwargs and env_path:
             kwargs["bin_path"] = env_path
         if "environment" in kwargs:
-            raise BuildAppError("environment can't be passed in via commands.")
+            raise BuildAppError(
+                BuildAppError.GENERIC_WITH_BUILD_ID,
+                exception_message="environment can't be passed in via commands.",
+            )
         kwargs["environment"] = environment
         kwargs["build_env"] = self
         build_cmd = cls(cmd, **kwargs)
@@ -616,7 +622,8 @@ def __enter__(self):
             if state is not None:
                 if state.get("Running") is True:
                     raise BuildAppError(
-                        _(
+                        BuildAppError.GENERIC_WITH_BUILD_ID,
+                        exception_message=_(
                             "A build environment is currently "
                             "running for this version",
                         ),
@@ -629,7 +636,9 @@ def __enter__(self):
                 client = self.get_client()
                 client.remove_container(self.container_id)
         except (DockerAPIError, ConnectionError) as exc:
-            raise BuildAppError(exc.explanation) from exc
+            raise BuildAppError(
+                BuildAppError.GENERIC_WITH_BUILD_ID, exception_message=exc.explanation
+            ) from exc
 
         # Create the checkout path if it doesn't exist to avoid Docker creation
         if not os.path.exists(self.project.doc_path):
@@ -703,7 +712,9 @@ def get_client(self):
                 )
             return self.client
         except DockerException as exc:
-            raise BuildAppError(exc.explanation) from exc
+            raise BuildAppError(
+                BuildAppError.GENERIC_WITH_BUILD_ID, exception_message=exc.explanation
+            ) from exc
 
     def _get_binds(self):
         """
@@ -816,4 +827,6 @@ def create_container(self):
             )
             client.start(container=self.container_id)
         except (DockerAPIError, ConnectionError) as exc:
-            raise BuildAppError(exc.explanation) from exc
+            raise BuildAppError(
+                BuildAppError.GENERIC_WITH_BUILD_ID, exception_messag=exc.explanation
+            ) from exc

readthedocs/doc_builder/exceptions.py

@@ -24,6 +24,7 @@ class BuildAppError(BuildBaseException):
     default_message = _("Build application exception")
 
     GENERIC_WITH_BUILD_ID = "build:app:generic-with-build-id"
+    UPLOAD_FAILED = "build:app:upload-failed"
     BUILDS_DISABLED = "build:app:project-builds-disabled"
     BUILD_DOCKER_UNKNOWN_ERROR = "build:app:docker:unknown-error"
     BUILD_TERMINATED_DUE_INACTIVITY = "build:app:terminated-due-inactivity"

readthedocs/notifications/exceptions.py

@@ -12,7 +12,9 @@ class NotificationBaseException(Exception):
 
     default_message = _("Undefined error")
 
-    def __init__(self, message_id, format_values=None, **kwargs):
+    def __init__(
+        self, message_id, format_values=None, exception_message=None, **kwargs
+    ):
         self.message_id = message_id
         self.format_values = format_values
-        super().__init__(self.default_message, **kwargs)
+        super().__init__(exception_message or self.default_message, **kwargs)

readthedocs/notifications/messages.py

@@ -96,6 +96,19 @@ def get_rendered_body(self):
         ),
         type=ERROR,
     ),
+    Message(
+        id=BuildAppError.UPLOAD_FAILED,
+        header=_("There was a problem while updating your documentation"),
+        body=_(
+            textwrap.dedent(
+                """
+                Make sure this project is outputting files to the correct directory, or try again later.
+                If this problem persists, report this error to us with your build id ({{ instance.pk }}).
+                """
+            ).strip(),
+        ),
+        type=ERROR,
+    ),
     Message(
         id=BuildAppError.BUILD_TERMINATED_DUE_INACTIVITY,
         header=_("Build terminated due to inactivity"),

readthedocs/projects/tasks/builds.py

@@ -479,7 +479,7 @@ def on_failure(self, exc, task_id, args, kwargs, einfo):
         # Known errors in our application code (e.g. we couldn't connect to
         # Docker API). Report a generic message to the user.
         if isinstance(exc, BuildAppError):
-            message_id = BuildAppError.GENERIC_WITH_BUILD_ID
+            message_id = exc.message_id
 
         # Known errors in the user's project (e.g. invalid config file, invalid
         # repository, command failed, etc). Report the error back to the user
@@ -951,7 +951,10 @@ def store_build_artifacts(self):
                 # Re-raise the exception to fail the build and handle it
                 # automatically at `on_failure`.
                 # It will clearly communicate the error to the user.
-                raise BuildAppError("Error uploading files to the storage.") from exc
+                raise BuildAppError(
+                    BuildAppError.UPLOAD_FAILED,
+                    exception_message="Error uploading files to the storage.",
+                ) from exc
 
         # Delete formats
         for media_type in types_to_delete:
@@ -973,7 +976,10 @@ def store_build_artifacts(self):
                 # Re-raise the exception to fail the build and handle it
                 # automatically at `on_failure`.
                 # It will clearly communicate the error to the user.
-                raise BuildAppError("Error deleting files from storage.") from exc
+                raise BuildAppError(
+                    BuildAppError.GENERIC_WITH_BUILD_ID,
+                    exception_message="Error deleting files from storage.",
+                ) from exc
 
         log.info(
             "Store build artifacts finished.",