how is context block generated?

[dharapvj]

I have weird issue where.. if I run powerlevel10k inside a rootless container - I do not get user@hostname block displayed. But same container, if I run rootful, I get the required context.

So I am trying to understand how the hostname is read by powerlevel10k.

HOSTNAME env variable is set and I can echo it.

Basically %n@%m where are values for n and m get set?

[romkatv]

Basically %n@%m where are values for n and m get set?

This is a zsh question rather than a p10k one. As far as I recall, the hostname can be overridden with HOST but I don't think there is a similar parameter for the username.

% HOST=blah print -P '%m'
blah

[dharapvj]

First of all - thank you for quick revert and giving me pointer! Much appreciated.

Setting HOST is not making the trick for me. I was already setting HOSTNAME but without much difference.

Somehow.. if I hardcode my state as REMOTE after this line like state="REMOTE" then my prompt start to work.

That tells me that if the state is DEFAULT, some variable remains unset.. but the for-loop block following this code is like a foreign language for me who hardly knows zsh. Any hints why DEFAULT does not get right values but REMOTE does?

My variables block related to context in .p10k.zsh is as follows:

##################################[ context: user@hostname ]##################################
  # Context color when running with privileges.
  typeset -g POWERLEVEL9K_CONTEXT_ROOT_FOREGROUND=1
  typeset -g POWERLEVEL9K_CONTEXT_ROOT_BACKGROUND=0
  # Context color in SSH without privileges.
  typeset -g POWERLEVEL9K_CONTEXT_{REMOTE,REMOTE_SUDO}_FOREGROUND=3
  typeset -g POWERLEVEL9K_CONTEXT_{REMOTE,REMOTE_SUDO}_BACKGROUND=0
  # Default context color (no privileges, no SSH).
  typeset -g POWERLEVEL9K_CONTEXT_FOREGROUND=3
  typeset -g POWERLEVEL9K_CONTEXT_BACKGROUND=0

  # Context format when running with privileges: user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_ROOT_TEMPLATE='%n@%m'
  # Context format when in SSH without privileges: user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_{REMOTE,REMOTE_SUDO}_TEMPLATE='%n@%m'
  # Default context format (no privileges, no SSH): user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_TEMPLATE='%n@%m'

  # Don't show context unless running with privileges or in SSH.
  # Tip: Remove the next line to always show context.
  typeset -g POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_{CONTENT,VISUAL_IDENTIFIER}_EXPANSION=

  # Custom icon.
  # typeset -g POWERLEVEL9K_CONTEXT_VISUAL_IDENTIFIER_EXPANSION='⭐'
  # Custom prefix.
  # typeset -g POWERLEVEL9K_CONTEXT_PREFIX='with '

[romkatv]

Have you seen this block?

https://github.com/romkatv/powerlevel10k/blob/master/config/p10k-rainbow.zsh#L983-L985

What happens if you heed the tip?

There is also this: https://github.com/romkatv/powerlevel10k?tab=readme-ov-file#how-do-i-add-username-andor-hostname-to-prompt

[dharapvj]

aah.. I incorrectly assumed that my docker exec session would be interpreted as SSH and so I was ignoring that variable.

Thank you for your support. I commented that particular typeset POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_{CONTENT,VISUAL_IDENTIFIER}_EXPANSION= and it is working as desired.

[romkatv]

You can also set parameters within ~/.p10k.zsh conditionally depending on whether you are in a docker container or not:

if [[ -r /proc/1/cpuset(#qN-.) && $(</proc/1/cpuset) == /docker/* ]]; then
  # in docker
  typeset POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_TEMPLATE='docker'
else
  # not in docker
  typeset -g POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_{CONTENT,VISUAL_IDENTIFIER}_EXPANSION=
fi

[technomadindie]

My Powerlevel10k prompt is showing incorrect hostname.
Situation : I connect to LSF in terminal which changes the hostname in the current terminal. But powerlevel10k still shows the old hostname before connecting to LSF. When I run /bin/hostname command, it shows the correct and current hostname. What should I add in the prompt to make it show the current hostname from /bin/hostname

This is my P10K config file for context

" ##################################[ context: user@hostname ]##################################
  # Context color when running with privileges.
  typeset -g POWERLEVEL9K_CONTEXT_ROOT_FOREGROUND=178
  # Context color in SSH without privileges.
  typeset -g POWERLEVEL9K_CONTEXT_{REMOTE,REMOTE_SUDO}_FOREGROUND=180
  # Default context color (no privileges, no SSH).
  typeset -g POWERLEVEL9K_CONTEXT_FOREGROUND=180

  # Context format when running with privileges: bold user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_ROOT_TEMPLATE='%B%n@%m'
  # Context format when in SSH without privileges: user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_{REMOTE,REMOTE_SUDO}_TEMPLATE='%n@%m'
  # Default context format (no privileges, no SSH): user@hostname.
  typeset -g POWERLEVEL9K_CONTEXT_TEMPLATE='%n@%m'

  # Don't show context unless running with privileges or in SSH.
  # Tip: Remove the next line to always show context.
  #typeset -g POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_{CONTENT,VISUAL_IDENTIFIER}_EXPANSION=

  # Custom icon.
  #typeset -g POWERLEVEL9K_CONTEXT_VISUAL_IDENTIFIER_EXPANSION='⭐'
  # Custom prefix.
  typeset -g POWERLEVEL9K_CONTEXT_PREFIX='%fwith '

  ###[ virtualenv: python virtual environment (https://docs.python.org/3/library/venv.html) ]###
  # Python virtual environment color.
  typeset -g POWERLEVEL9K_VIRTUALENV_FOREGROUND=37
  # Don't show Python version next to the virtual environment name.
  typeset -g POWERLEVEL9K_VIRTUALENV_SHOW_PYTHON_VERSION=false
  # If set to "false", won't show virtualenv if pyenv is already shown.
  # If set to "if-different", won't show virtualenv if it's the same as pyenv.
  typeset -g POWERLEVEL9K_VIRTUALENV_SHOW_WITH_PYENV=false
  # Separate environment name from Python version only with a space.
  typeset -g POWERLEVEL9K_VIRTUALENV_{LEFT,RIGHT}_DELIMITER=
  # Custom icon.
  # typeset -g POWERLEVEL9K_VIRTUALENV_VISUAL_IDENTIFIER_EXPANSION='⭐'

"

[romkatv]

What is the output of print -P '%m'? Is it correct or not?

[technomadindie]

Please help. I want to share my config file with my team. So, I can check the current hostname by writing the command, but I want a permanent solution.
Also, that why %m is not showing correct hostname

[romkatv]

If you believe that the output of print -P '%m' is incorrect, consider reporting a bug against zsh. See https://zsh.sourceforge.io/FAQ/zshfaq06.html#l63. Thankfully, you don't need to mention anything about your zsh setup, including the fact you are using powerlevel10k, because print -P '%m' is a basic builtin command.

As a workaround, you can implement a custom prompt segment for p10k and use that instead of the provided context. See p10k help segment. Alternatively, you can set HOST when you "connect to LSF in terminal" (quoted because I don't really know what that means), and zsh will respect that.

[technomadindie]

Okay Sure, I'll file a bug in zsh. But for now, can you help in what should I write in the command, so that it properly extracts hostname from /bin/hostname.

[romkatv]

As I mentioned, you can set HOST to override the %m expansion. You can try it with HOST=$(/bin/hostname).

[technomadindie]

Thanks! It worked!