Setting fmt command to 'gopls' causes a message on save

[antoineco]

What did you do?

1. Set let g:go_fmt_command = 'gopls' in my vimrc file.
2. Created a new file with vim main.go.
3. Saved the file with :w.

What did you expect to happen?

No message, no need to press Enter to continue editing the file.

What happened instead?

The following message is printed:

vim-go: [imports] SUCCESS
"main.go" [New] 7L, 67C written
Press ENTER or type command to continue

I have to press Enter to make the message disappear, which is not the behavior I observe with the gofmt formatter.

Configuration:

vim-go version:

master @ d6f4680

vimrc you used to reproduce:

let g:go_fmt_command = 'gopls'
let g:go_imports_mode = 'gopls'
let g:go_rename_command = 'gopls'

Vim version:

VIM - Vi IMproved 8.1 (2018 May 18, compiled Mar 19 2020 13:12:18)
Included patches: 1-875, 878, 884, 948, 1046, 1365-1368, 1382, 1401

Go version:

go version go1.14 linux/amd64

Go environment

go env Output:

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/acotten/.cache/go-build"
GOENV="/home/acotten/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/acotten/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build156702237=/tmp/go-build -gno-record-gcc-switches"

gopls version

gopls version Output:

golang.org/x/tools/gopls 0.4.0
    golang.org/x/tools/gopls@v0.4.0 h1:G4+YP9kaV4dJb79J5MobyApxX493Qa6VoiTceUmxqik=

Already reported in #2800 (comment) but the issue was not addressed.
ref #2729

[bhcleek]

I'll get this fixed.

You can work around this easily (especially if you're using the statusbar integration already) by adding let g:go_echo_command_info=0 to you vimrc.

[antoineco]

I didn't use the status bar integration until now but I certainly will! Thanks for the tip 👍