nix-config/modules/home/zsh/completion-styles.zsh

# shellcheck shell=bash

# Style the completion a bit
# shellcheck disable=2086,2296
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
# Show a prompt on selection
zstyle ':completion:*' select-prompt '%SScrolling active: current selection at %p%s'
# Use arrow keys in completion list
zstyle ':completion:*' menu select
# Group results by category
zstyle ':completion:*' group-name ''
# Keep directories and files separated
zstyle ':completion:*' list-dirs-first true
# Expand '//' to '/'
zstyle ':completion:*' squeeze-slashes true
# Add colors to processes for kill completion
zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#)*=0=01;31'

# match uppercase from lowercase
zstyle ':completion:*' matcher-list 'm:{a-z}={A-Z}'

# Filename suffixes to ignore during completion (except after rm command)
zstyle ':completion:*:*:(^rm):*:*files' ignored-patterns '*?.o' '*?.c~' '*?.old' '*?.pro'

# command for process lists, the local web server details and host completion
# on processes completion complete all user processes
# shellcheck disable=2016
zstyle ':completion:*:processes' command 'ps -au$USER'

# Completion formatting and messages
zstyle ':completion:*' verbose yes
zstyle ':completion:*:descriptions' format '%B%d%b'
zstyle ':completion:*:messages' format '%d'
zstyle ':completion:*:warnings' format 'No matches for: %d'
zstyle ':completion:*:corrections' format '%B%d (errors: %e)%b'