Be able to stop the server entirely

[dnikolovv]

Often times the server just decides to hang or just simply not work. In these cases it's usually handy to resort to ghci or stack build --file-watch.

The problem is that when the server hangs you cannot use stack due to it also hanging due to a lock blocking for directory lock on /home/some/path/.stack-work/dist/x86_64-linux/Cabal-3.0.1.0/build-lock.

Sometimes you just want to quit trying to make the language server work and simply use VS Code + a separate terminal. It'd be nice if there was a command that shuts down the server entirely.

I haven't found a sane workaround so far.

[jneira]

The first workaround i can think of is to disable the extension (cause it is useless without a running server) for that workspace and kill the server process externally but i guess it would be included in the insane ones.

[dnikolovv]

@jneira Haha! I do exactly that! It kind of ruins the UX although I've been going with it for a while now lol.

[dnikolovv]

@jneira This issue is actually mostly related to https://github.com/haskell/ghcide/issues/842. This has been the most common cause of the server refusing to work.

[anka-213]

I just wanted this again when I was trying to do a git bisect run, since there's a lot of needless busywork that hls does when the files changes a lot all the time.

Disabling the extension is kind of annoying because it forces you to reload the editor. What I really want is a command, like the " Restart Haskell LSP server", but "Stop Haskell LSP server" as an easy way of temporarily stopping the server.

The main workaround I've been using is to set haskell.serverExecutablePath to something that doesn't exist or to false or something, but that's not a great workaround either.

[jneira]

https://github.com/haskell/vscode-haskell/releases/tag/1.5.1 has included two new commands: Start Haskell LSP server and Stop Haskell LSP server
I had no time to test them properly as the release fixed a bug but let me know if they work for you if you got the chance to check them