Terminal output in logs is odd

Build Environment
#1

The log output in circleci looks like its having encoding or terminal issues. For instance I see double spacing like the following:

$<3>>>> Installing (93 of 154) net-misc/wget-1.16.3-r1::portage-stable to /build/amd64-usr/

$<3>>>> Installing (108 of 154) virtual/package-manager-0::portage-stable to /build/amd64-usr/

I don’t see this when I run the build in an Ubuntu or OSX terminal. Do others see this? Is there a specific terminal that CircleCI uses?

#2

Hi @bassamtabbara,

Thanks for pointing this out to us! Can you please try SSHing into a build and running the same command to see if it generates similarly strange output?

Let us know!
-Frank

#3

Hi @frank, when I SSH into the machine the output looks sane. Its only when I look at the logs from the CircleCI web UI that its all messed up.

#4

@frank any update on this? Its really hard to follow scrambled logs when debugging issues. I’m happy to point you at a private repo with an example of the logs. As I mentioned this does not happen with I SSH directly into the box.

#5

I have a similar problem with meteor.js builds and deployments. Meteor uses a console “progress bar” when downloading and uploading stuff and it spams the web UI:

Downloading meteor-tool@1.1.3 1%
Downloading meteor-tool@1.1.3 2%
etc. etc. etc.

#6

docker build output is also double spaced. Something is wrong with the terminal parsing in circleci.

#7

Output from “docker run -it container” has an extra line feed still, see image.

#8

This issue still occurs as of May 2018 in circleci 2.0

#9

The issue is between Docker and TTY, whatever that means. For docker-compose it was enough to add -T flag to run.

#10

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