langserver-go keeps unexpectedly opening window with debug output

[Dbz]

Describe the bug
When I open a new file, langserver-go will open up a window in my vim terminal with output after attempting to run my file. I do not want this automatically happening.

To Reproduce
Steps to reproduce the behavior:

1. Create file touch main.go
2. open file vim main.go
   You will see output below the status line: [coc.nvim] service languageserver.golang started
3. Start typing package main and a window will be created with debug output

Expected behavior
Nothing will happen as I am typing in a new file

Desktop (please complete the following information):

• Terminal: iTerm2
• Version: v3.2.5

Additional context
This also happens randomly when working on files, but it is very consistent when opening a new file. I don't know if it has to do my my directory structure. Here is my directory and path variables:

directory: /Users/dbz/development/go/src/github.com/udemy_channels
$GOPATH: /Users/dbz/development/go
($GOPATH is appended onto the very end of $PATH)
$PATH: /Users/dbz/apache-cassandra-3.11.2/bin:./bin:/Users/dbz/bin:/Users/dbz/.rbenv/bin:/Users/dbz/.rbenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/Postgres.app/Contents/Versions/9.4/bin:/usr/local/mysql/bin:/Users/dbz/bin:/Users/dbz/development/go/bin

[oblitum]

I also got that window while in a working source, but after typing ( for a function. Choosing the function from the popup menu avoided the issue, but just keep typing it without using the menu and reaching ( caused the bug for me.

[chemzqm]

The output window will be opened when language server log errors by default.
Add "revealOutputChannelOn": "never", to configuration section of your server to disable this behavior.

[chemzqm]

There should be Message contains Error which should be fixed with your language server.

[chemzqm]

@Dbz
Try remove autocmd of showSignatureHelp like:

  autocmd CursorHoldI * silent call CocActionAsync('showSignatureHelp')

The error might caused by the server is not ready to parse signature.
You can still have triggered signature without this autocmd.

[Dbz]

Is there a way to disable this only for Go and not for other languages like Ruby?

[oblitum]

It's on wiki: https://github.com/neoclide/coc.nvim/wiki/Language-servers#go.

[chemzqm]

3 in [3 - 4:25 should be error, it's fixed on master.

[Dbz]

@oblitum just a note on the documentation. JSON doesn't support comments (ridiculous, I know), so if people copy/paste the json configs with comments (//), they will break and users may not know why.

[oblitum]

@Dbz coc-settings.json uses cJSON format, which do accept comments.

[oblitum]

It's mentioned here: https://github.com/neoclide/coc.nvim/wiki/Using-configuration-file.

[Dbz]

My mistake!

Seriously though, thank you @oblitum and @chemzqm for working on this plugin. It is great.

[oblitum]

@Dbz np, all kudos to @chemzqm, currently I'm just trying to help and playing with it.

[oblitum]

@Dbz recommendation for Go, you may use it in parallel to vim-go, because the Go LSP server still doesn't offer many features.

[Dbz]

Yeah, I am using vim-go as well! It might be worth mentioning that in the wiki near the Go server config.