language server completely ignoring stdin

[mohkale]

I'm trying to build and run omnisharp with emacs in docker. I'm quite new to dotnet on linux so I'm kinda lost about a lot of things but for some reason omnisharp is completely ignoring stdin when running with -lsp, meaning my language server client is crashing because the server is totally unresponsive.

Here's the Dockerfile I have so far which builds omnisharp and then installs it to /omnisharp/OmniSharp.

FROM mcr.microsoft.com/dotnet/sdk:6.0

RUN apt-get update \
    && apt-get install -y mono-runtime binutils curl mono-devel ca-certificates-mono nuget \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* /tmp/*

# Step to install the roslyn language server to /bin/omnisharp
RUN git clone --recurse-submodules --single-branch https://github.com/OmniSharp/omnisharp-roslyn.git /omnisharp/repo \
    && cd /omnisharp/repo \
    && ./build.sh --target PublishNet6Builds --configuration Release \
    && mv -v artifacts/publish/OmniSharp.Stdio.Driver/linux-x64/net6.0/* /omnisharp/ \
    && rm -rvf /omnisharp/repo \
    && ln -sv /omnisharp/OmniSharp /bin/omnisharp

If I run just omnisharp I get a bunch of informative debug output. If I run omnisharp -v -lsp I get dead silence. If I enter anything or even send EOF with Ctrl-d I still get nothing. Ludicrously I can even do omnisharp -v -lsp </dev/random meaning even if the server is recieving a massive stream of random input it's just completely disregarding it.

Does anyone know how to get this working as advertised?

[mohkale]

Update: I've somehow managed to run the language server succesfully through an alternative docker image. Basically source from docker-yay, run yay -Sy omnisharp-roslyn-bin and use from my editor. I have no idea why that works but this doesn't. I guess because it's likely installing an older omnisharp release. Will experiment more.

[mems]

I've have the same issue when I try to use OmniSharp with intellij-lsp (an IntelliJ extension for support of LSP). I've found that the version 1.32.9 work with stdin/out using --languageserver option, but not recent versions. At least this versions don't work:

• 1.37.15+Branch.tags-v1.37.15.Sha.1ff2a19dce6012a4fe90904de239f3b82682b444
• 1.37.5+Branch.tags-v1.37.5.Sha.bb5744356437c8c2dbaa63d8f092aa98b7b492bc
• 1.37.2+Branch.tags-v1.37.2.Sha.df9d4fcebe0729760c5988ec9fa499c092e5dcb8
• 1.36.0+Branch.tags-v1.36.0.Sha.ad4f3ca6fd2ceef49f3a65248356c5d9027d2057
• 1.34.0+Branch.master.Sha.79db05e574a95b541e828a1af33382eb6024933a
• 1.32.6+Branch.master.Sha.69c9127142e6430cef1288580d5e3bb6a24b4669