"panic: runtime error: integer divide by zero" - getting error on docker container about go-prompt HOT 11 CLOSED

This is sort of a race condition between the time taken for docker to complete allocation of psuedo terminal and go-prompts initial window calculations.

Fix submitted in #32

from go-prompt.

ok let me create a test project and create docker container with it and will give you source code

from go-prompt.

Hi @harshapic ! Could you tell me your source code using go-prompt?
I can't help you without it.

from go-prompt.

yes its using go-prompt

/home/sdp/go/src/github.com/xxxxx/sdp-cli-client/vendor/github.com/c-bata/go-prompt/prompt.go:50 +0xe0
main.main()
/home/sdp/go/src/github.com/xxxxx/sdp-cli-client/main.go:78 +0x764

Tried to run on docker container with base "ubuntu:16.04"
docker version: Docker version 17.03.2-ce, build f5ec1e2

from go-prompt.

import (
"fmt"

"github.com/c-bata/go-prompt"

)

Actually if i run it on ubuntu machine my code is working fine when i copy executable to docker container and if i try to run it it giving me error

from go-prompt.

Sorry, It's difficult to help you from these information.
Is sdp-cli-client your private project? If I help you, I need to check the source code and understand how you use go-prompt.

from go-prompt.

this is my sample test project, it has everything even with dockerfile.
Steps to replicate issue:

1. CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o yang-cli
2. docker build -t yang-cli .
3. docker run -it yang-cli /bin/sh

yang-cli.tar.gz

from go-prompt.

you will get this issue:

yangcli (rev-)
Please use exit or Ctrl-D to exit this program..
Bye!
panic: runtime error: integer divide by zero

goroutine 1 [running]:
github.com/yang-cli/vendor/github.com/c-bata/go-prompt.(*Render).Render(0xc4200d6000, 0xc420069d80, 0xc4200cc810)
/home/sdp/go/src/github.com/yang-cli/vendor/github.com/c-bata/go-prompt/render.go:134 +0x50c
github.com/yang-cli/vendor/github.com/c-bata/go-prompt.(*Prompt).Run(0xc42008bce0)
/home/sdp/go/src/github.com/yang-cli/vendor/github.com/c-bata/go-prompt/prompt.go:50 +0xe0
main.main()
/home/sdp/go/src/github.com/yang-cli/main.go:44 +0x5a3

from go-prompt.

but same thing it works properly on my developer machine

from go-prompt.

@c-bata ru able to reproduce issue on docker container?

from go-prompt.

thank you @bcicen

from go-prompt.