Cli: zsh autocompletion is broken

[NikosEfthias]

Steps to reproduce the issue:

1. add docker to the plugins array
2. type docker and hit tab twice

Describe the results you received:
list of the files in the current directory

Describe the results you expected:
docker commands such as run

Additional information you deem important (e.g. issue happens only occasionally):

Output of docker version:

Client:
 Version:      17.03.1-ce
 API version:  1.27
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Tue Mar 28 00:40:02 2017
 OS/Arch:      darwin/amd64

Server:
 Version:      17.03.1-ce
 API version:  1.27 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Fri Mar 24 00:00:50 2017
 OS/Arch:      linux/amd64
 Experimental: true

Output of docker info:

Containers: 2
 Running: 0
 Paused: 0
 Stopped: 2
Images: 2
Server Version: 17.03.1-ce
Storage Driver: overlay2
 Backing Filesystem: extfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host ipvlan macvlan null overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 4ab9917febca54791c5f071a9d1f404867857fcc
runc version: 54296cf40ad8143b62dbcaa1d90e520a2136ddfe
init version: 949e6fa
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.9.27-moby
Operating System: Alpine Linux v3.5
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 1.952 GiB
Name: moby
ID: G4R3:BP7S:FOLV:44UL:RWQ7:Z4FP:PPAC:VGD5:GDJR:LQPP:VTEC:B2QR
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
 File Descriptors: 16
 Goroutines: 26
 System Time: 2017-06-28T18:09:21.525357926Z
 EventsListeners: 1
No Proxy: *.local, 169.254/16
Registry: https://index.docker.io/v1/
Experimental: true
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false

Additional environment details (AWS, VirtualBox, physical, etc.):

host os:osx sierra 10.12.16 beta

[dnephin]

docker commands such as run

This sounds like the correct behaviour. Why do you expect a list of files?

[NikosEfthias]

this is what happens when I hit tab after docker. Does it seem correct? @dnephin

[dnephin]

Sorry, I misread the issue. Yes this looks wrong. I believe this is the default tab completion when nothing is installed. So maybe the problem is that it didn't get installed correctly?

[NikosEfthias]

hi
this is the line of plugins

plugins=(git,docker)

And this is what I read on the internet to prevent username on the prompt

prompt_context(){}

I don't know if it has something to do with this.

And these are the plugins containing the word docker

[jphuynh]

I just tested the zsh completion and I hate to say that but _it works as expected on my machine_.

I'm using zprezto so I don't have the exact same setting but it should be really similar. From your screenshot I was wondering if the file shouldn't be _docker like it is in source.

You may also be interested in looking at that README especially if you are already using the zsh-completion package.

Hope that helps.

[NikosEfthias]

i have added zsh completion package as described in the doc and then sourced zshrc but it doesnt fix the issue and i couldnt understand what you meant by ' I was wondering if the file shouldn't be _docker like it is in source'

[jphuynh]

Sorry I misread the content of your screenshot. I assume that your tree looks like that ~/.oh-my-zsh/plugins/docker/_docker.

I think the array in your ~/.zshrc should be plugins=(git docker) (space separated) instead of plugins=(git,docker)

[NikosEfthias]

@jphuynh yep that was the issue 🥇 thank you so much when i replace commas with spaces it worked like a charm .

[gitlines]

I am running a Digital Ocean VPS with Ubuntu 16.04.4 LTS installed and the oh-my-zsh setup.
Autocompletion works for docker commands but not for images. This is when I am logging in as a user without admin rights (sudo is always needed when doing anything with docker ).
Logging in as root however, autocomplete for images does work.

Does someone have a clue how I get autocompletion for images for the user to work?

[jphuynh]

You don't have to be root to run Docker and arguably shouldn't.

Make sure your user is part of the Docker group or add it using: usermod -aG docker <yourUsername>

[gitlines]

@jphuynh ... like charm, thank you! I had to logout/ login. The autocomplete for the images also works now!

[terryfernz]

uninstall/remove oh-my-zsh and install it again.

[leite]

not working for me, take a look https://asciinema.org/a/gh0dsAd7wv14VyEIXi4OBJpke

[leite]

I solved the issue removing docker-ce and installing docker & docker.io from ubuntu repository

and also put these two lines at the end of my .zshrc

autoload -Uz compinit
compinit

thanks @naoliv

[dambrogia]

The solution from @leite worked for me as well. Can anyone explain why this works? Why it's necessary that I add this and why it isn't in the core already?

[snaveevans]

Same issue @leite's suggestion fixed it for me as well.

[brainplot]

Although @leite's solution worked for me too, manually removing the shell's completion database via

rm -v ~/.zcompdump*

forces the shell to rebuild it and the completion for Docker finally starts working, without adding

autoload -Uz compinit && compinit

to my .zshrc file.

[jnoelvictorino]

Same issue. Tried @leite, @brainplot and @gitlines suggestions.
Not sure which suggestion actually made the fix.

[callofdutyops]

rm ~/.zcompdump*

Work for me.

[w4nd]

rm ~/.zcompdump* and reopening terminal still working on Linux Mint 17.04 too

[Chichilele]

rm ~/.zcompdump* worked on ubuntu 18.04 thanks !

[domvo]

Works on Mac OS (Mojave)! Thanks

[mtmk]

rm ~/.zcompdump* and reopening terminal worked for me too (macOS Catalina 10.15.1). No need to do compinit as mentioned above - which also works btw.

[SamEdwardes]

Thank you. rm ~/.zcompdump* worked for me as well.

[SarathLUN]

Although @leite's solution worked for me too, manually removing the shell's completion database via

rm -v ~/.zcompdump*

forces the shell to rebuild it and the completion for Docker finally starts working, without adding

autoload -Uz compinit && compinit

to my .zshrc file.

Thank you. this also worked for me.

[axenol85]

If you've tried all of the above, and it zsh-completion for docker still doesn't work for you, that may be because you're in my situation:

• using oh-my-zshell
• file ~/.oh-my-zshell/plugins/docker/_docker is not loaded
  I don't know why this file is in the standard plugins folder, but I've head to add it to the zsh-completions fpath variable explicitly per the mentioned stackoverflow answer:

  plugins=(git)

  # Docker completions don't follow the standard, and path needs to be added directly to zsh-completions
  # Also, "rm ~/.zcompdump*", and "source ~/.zshrc"
  # https://stackoverflow.com/questions/37428133/zsh-docker-plugin-not-working
  fpath+=($ZSH/plugins/docker)

  plugins=(zsh-completions)
  autoload -U compinit && compinit

TL;DR
https://github.com/zsh-users/zsh-completions/blob/master/zsh-completions-howto.org

[rcepni]

Thank you @leite . It also solved my problem.

[rcepni]

Thank you @axenol85 . Leite's solution good but had to do it every time when I open a new terminal.
Yours look like permanent solution. I followed steps from below link which you provided already.

• https://stackoverflow.com/a/45406609/11959398
  used Youhans's solution which I shared a screenshot of it below

• You might have permission issue to make changes on zshrc. I have changed the permission from UI to make it "read and write" and added the code snippet to the end of the file. Now solved permanently.