Docker command autocomplete broken

[felixlabrot]

Describe the bug

When attempting a terminal autocomplete (double TAB) on any Docker command, the following error message is shown:

-bash: _get_comp_words_by_ref: command not found
-bash: [: : integer expression expected
-bash: [: : integer expression expected
-bash: [: : integer expression expected
-bash: _get_comp_words_by_ref: command not found
-bash: [: : integer expression expected
-bash: [: : integer expression expected
-bash: [: : integer expression expected

Reproduction steps

1. type "docker " into the terminal
2. double press TAB
3. observe crash

Expected behavior

Terminal Autocomplete should suggest possible commands, containers, ...

Additional context

Docker version 27.3.1, build 3ab4256

[dcasota]

@felixlabrot at least on Ph5 x86_64 this hasn't been reproducible yet. Which version? is it as root/sudo?

[felixlabrot]

This issue can be reproduced on all servers in our datacenter. You tried it wrong. You are listing all commands/files starting with the string "docker". You have to enter a space after "docker " (as stated in the reproduction steps) so you can get all the commands of Docker.

You could also do a list of all subcommands of the "docker image" command:

The bug can be reproduced with absolutely everything as long as it starts with "docker ".

[dcasota]

Yep, got it. Same here after 'docker list'.

[felixlabrot]

This is a huge pain when you operate a datacenter and 80% of your stuff is in Docker ;)

I guess this is caused by an incompatibility since the recent upgrade from an old Docker release to v27. With the major release upgrade this bug was introduced.

[dcasota]

23d6b4d
Well, cryptography rules, but non-AI test cases is a sisyphus job.

[YustasSwamp]

@felixlabrot Thanks for the report. Seems like bash completion file for newer docker uses deprecated function. We will fix that.
For now, try this workaround:

wget https://raw.githubusercontent.com/scop/bash-completion/3e51b6c5f2d4344206e95ef77ec384450d957bad/bash_completion.d/000_bash_completion_compat.bash -P /etc/bash_completion.d/

and restart your bash session.

[felixlabrot]

This fixes the issue.

[felixlabrot]

When will this fix be rolled out? To this day it is still needed to manually patch the bug.

[felixlabrot]

Why do you not update your broken software? This is ultra annoying if the very basic function why Photon OS exists in the first place is fundamentally broken and you refuse to deploy a fix for over a month now.

[dcasota]

@felixlabrot Photon OS is different, it‘s a indirect democracy distribution, because it does not get its pulse from external contributors‘ pull requests, but from Broadcom-internal topics, tasks and security recommendations.
It helps to contribute with pull requests. It‘s sisyphus work in the age of AI but it helps.
And, Happy 2025! - I hope the Photon OS team and we as contributors enjoyed the last couple of weeks and fully charged the battery again.