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Library: GitProvider - Don't stop the app even if the library is not ready #639

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16 changes: 7 additions & 9 deletions asab/library/providers/git.py
Original file line number Diff line number Diff line change
Expand Up @@ -122,30 +122,29 @@ def init_task():
pygit_message = str(err).replace('\"', '')
if "'refs/remotes/origin/{}'".format(self.Branch) in pygit_message:
# branch does not exist
L.exception(
L.critical(
"Branch does not exist.",
struct_data={
"url": self.URLPath,
"branch": self.Branch
}
)
else:
L.exception("Error when initializing git repository: {}".format(pygit_message))
self.App.stop() # NOTE: raising Exception doesn't exit the app
L.critical("Error when initializing git repository: {}".format(pygit_message))

except pygit2.GitError as err:
pygit_message = str(err).replace('\"', '')
if "unexpected http status code: 404" in pygit_message:
# repository not found
L.exception(
L.critical(
"Git repository not found.",
struct_data={
"url": self.URLPath
}
)
elif "remote authentication required but no callback set" in pygit_message:
# either repository not found or authentication failed
L.exception(
L.critical(
"Authentication failed when initializing git repository.\n"
"Check if the 'providers' option satisfies the format: 'git+<username>:<deploy token>@<URL>#<branch name>'",
struct_data={
Expand All @@ -156,23 +155,22 @@ def init_task():
)
elif 'cannot redirect from' in pygit_message:
# bad URL
L.exception(
L.critical(
"Git repository not found.",
struct_data={
"url": self.URLPath
}
)
elif 'Temporary failure in name resolution' in pygit_message:
# Internet connection does
L.exception(
L.critical(
"Git repository not initialized: connection failed. Check your network connection.",
struct_data={
"url": self.URLPath
}
)
else:
L.exception("Git repository not initialized: {}".format(err))
self.App.stop()
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return ... don't claim "library ready" - as discussed.

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I added returns. But I tested it in the remote control. And remote control works even if the library is not ready. asab.library module does not restrict you to read from the library when library is not ready. So it is up to each microservice to check whether the library is ready before reading. Moreover, in remote control, I subscribe to changes in the Library on library ready. But the Library.ready! signal never comes. So, the remote control is running with wrong set of library layers and without the update of model. Which is serious.

I think we need to decide whether this should be solved on the asab level or on the microservice level and adjust first. Only then, this can be merged.

	async def _on_library_ready(self, event_name, library=None):
		# subscribe to /Site - that's wehere the model files are
		await self.App.LibraryService.subscribe(self.MODEL_PATH)
		self.App.TaskService.schedule(self.update_model_cache())

L.critical("Git repository not initialized: {}".format(err))
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"critical" error means that the app will exit ... otherwise this is an error (at all instances)

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in that case I only remove lines that stop the app


except Exception as err:
L.exception(err)
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