4.7 KiB
Prompt
Loads prompt themes.
Settings
Prompt Theme
To select a prompt theme, add the following to ${ZDOTDIR:-$HOME}/.zpreztorc,
and replace '<name>' with the name of the theme you wish to load. Setting it
to 'random' will load a random theme every time.
zstyle ':prezto:module:prompt' theme '<name>'
Prompt Display Length
To change working directory prompt display length from 'short', set the
following to 'long' (without ~ expansion) or 'full' (with ~ expansion) in
${ZDOTDIR:-$HOME}/.zpreztorc.
zstyle ':prezto:module:prompt' pwd-length 'short'
Display Return Value
Some prompts display the return value in the prompt. If a prompt has support, this can be disabled with the following snippet.
zstyle ':prezto:module:prompt' show-return-val 'no'
Theming
A prompt theme is an autoloadable function file with a special name,
prompt_name_setup, placed anywhere in $fpath, but for the purpose of this
project, themes should be placed in the modules/prompt/functions
directory.
Required Variables
To ensure that your function works with the editor-info module you'll need to
set the following variable in ${ZDOTDIR:-$HOME}/.zpreztorc:
# Tell prezto we can manage this prompt
zstyle ':prezto:module:prompt' managed 'yes'
This is to ensure compatibility with outside prompts, while allowing prezto
and prezto-compatible prompts to take full advantage of the editor module.
This should be set in the prompt_name_setup function after you've added
any additional hooks with add-zsh-hook precmd prompt_name_precmd. See below
for additional information about functions and hooks.
Theme Functions
There are three theme functions, a setup function, a help function, and a preview function. The setup function must always be defined. The help function and the preview functions are optional.
prompt_name_setup
This function is called by the prompt function to install the theme. This
function may define other functions as necessary to maintain the prompt,
including a function that displays help or a function used to preview it.
Do not call this function directly.
The most basic example of this function can be seen below.
function prompt_name_setup {
PROMPT='%m%# '
RPROMPT=''
}
prompt_name_help
If the prompt_name_setup function is customizable via parameters, a help
function should be defined. The user will access it via prompt -h name.
The most basic example of this function can be seen below.
function prompt_name_help {
cat <<EOH
This prompt is color-scheme-able. You can invoke it thus:
prompt theme [<color1>] [<color2>]
where the color is for the left-hand prompt.
EOH
}
prompt_name_preview
If the prompt_name_setup function is customizable via parameters, a preview
function should be defined. The user will access it via prompt -p name.
The most basic example of this function can be seen below.
function prompt_name_preview {
if (( $# > 0 )); then
prompt_preview_theme theme "$@"
else
prompt_preview_theme theme red green blue
print
prompt_preview_theme theme yellow magenta black
fi
}
Hook Functions
There are many Zsh hook functions, but mostly the precmd hook will be used.
prompt_name_precmd
This hook is called before the prompt is displayed and is useful for getting information to display in a prompt.
When calling functions to get information to display in a prompt, do not assume that all the dependencies have been loaded. Always check for the availability of a function before you calling it.
Do not register hook functions. They will be automatically registered by the
prompt function.
The most basic example of this function can be seen below.
function prompt_name_precmd {
if (( $+functions[git-info] )); then
git-info
fi
}
Troubleshooting
Fonts aren't displaying properly
On most systems, themes which use special characters need to have a patched font installed and configured properly.
Powerline provides some information on terminal support and how to install patched fonts which should fix most font issues.
Authors
The authors of this module should be contacted via the issue tracker.