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Add return type to Docker Container.logs #11888

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merged 5 commits into from
May 12, 2024
Merged

Add return type to Docker Container.logs #11888

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ef9f962
Add return type to Docker Container.logs
adamtheturtle May 10, 2024
96dbb34
Use 'CancellableStream' as a return type for docker logs call
adamtheturtle May 11, 2024
f4a54f6
Use @overload on Docker logs method to show different return types
adamtheturtle May 11, 2024
5207eb6
Merge remote-tracking branch 'origin/master' into types-docker-contai…
adamtheturtle May 12, 2024
8ccc147
Address review comments to handle overload correctly
adamtheturtle May 12, 2024
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3 changes: 2 additions & 1 deletion stubs/docker/docker/api/container.pyi
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
from _typeshed import Incomplete
from collections.abc import Generator

class ContainerApiMixin:
def attach(
Expand Down Expand Up @@ -77,7 +78,7 @@ class ContainerApiMixin:
since: Incomplete | None = None,
follow: Incomplete | None = None,
until: Incomplete | None = None,
): ...
) -> Generator[bytes, None, None] | bytes: ...
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@srittau srittau May 10, 2024 •
edited

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It seems to me that it would make sense to use an overload based on stream and demux:

  • Return CancellableStream if stream is True.
  • Return Generator[tuple[bytes | None, bytes | None], None, None] if demux is True.
  • Return Generator[bytes, None, None] otherwise.

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Thank you. I'll have a go at creating an overload - though this is something I have not done before.

I believe demux is not related to this function.

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@srittau - I have made an attempt to do this here (but not yet in the other file). I found it challenging to know what to do wrt e.g. an argument with a default followed by an argument without a default. I'd appreciate some tips / specific guidance on this change, and then I can apply it to the other file and hopefully to other changes I make to this repository.

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@srittau srittau May 12, 2024 •
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Arguments with defaults following arguments with defaults are a bit cumbersome, unfortunately. You need two overloads for that, one where all previous parameters are required, and one using the star import.

    @overload
    def logs(
        self,
        container,
        stdout: bool = True,
        stderr: bool = True,
        *,
        stream: True,
        timestamps: bool = False,
        tail: str = "all",
        since: Incomplete | None = None,
        follow: Incomplete | None = None,
        until: Incomplete | None = None,
    ) -> CancellableStream: ...
    @overload
    def logs(
        self,
        container,
        stdout: bool,
        stderr: bool,
        stream: True,
        timestamps: bool = False,
        tail: str = "all",
        since: Incomplete | None = None,
        follow: Incomplete | None = None,
        until: Incomplete | None = None,
    ) -> CancellableStream: ...
    @overload
    def logs(
        self,
        container,
        stdout: bool = True,
        stderr: bool = True,
        stream: False = False,
        timestamps: bool = False,
        tail: str = "all",
        since: Incomplete | None = None,
        follow: Incomplete | None = None,
        until: Incomplete | None = None,
    ) -> bytes: ...

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Thank you!

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Also, I just noticed: tail should be annotated as Literal["all"] | int, but that may be outside the scope of this PR.

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Also, I just noticed: tail should be annotated as Literal["all"] | int, but that may be outside the scope of this PR.

I've submitted that change in #11906 and I will block this PR on that one to avoid conflicts.

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@srittau I'm working on the assumption that where you put e.g. stream: True,, that should be stream: Literal[True],

def pause(self, container) -> None: ...
def port(self, container, private_port): ...
def put_archive(self, container, path, data): ...
Expand Down
3 changes: 2 additions & 1 deletion stubs/docker/docker/models/containers.pyi
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
from _typeshed import Incomplete
from collections.abc import Generator
from typing import NamedTuple

from .resource import Collection, Model
Expand Down Expand Up @@ -39,7 +40,7 @@ class Container(Model):
def export(self, chunk_size=2097152): ...
def get_archive(self, path, chunk_size=2097152, encode_stream: bool = False): ...
def kill(self, signal: Incomplete | None = None): ...
def logs(self, **kwargs): ...
def logs(self, **kwargs) -> Generator[bytes, None, None] | bytes: ...
def pause(self): ...
def put_archive(self, path, data): ...
def remove(self, **kwargs) -> None: ...
Expand Down