dotfiles / zsh / completion.zsh

#
# Completion
#

# Add completion functions to $fpath
fpath=($ZSHROOT/completion(/FN) $fpath)
fpath=($ZSHROOT/completion/zsh-completions/src(/FN) $fpath)

# Load and initialize the completion system ignoring insecure directories
autoload -Uz compinit && compinit -i

#
# Options
#

setopt complete_in_word    # Complete from both ends of a word
setopt always_to_end       # Move cursor to the end of a completed word
setopt path_dirs           # Perform path search even on command names with slashes
setopt auto_menu           # Show completion menu on a succesive tab press
setopt auto_list           # Automatically list choices on ambiguous completion
setopt auto_param_slash    # If completed parameter is a directory, add a trailing slash
unsetopt menu_complete     # Do not autoselect the first completion entry
unsetopt flow_control      # Disable start/stop characters in shell editor

# Treat these characters as part of a word
WORDCHARS=''

#
# Styles
#

# Use caching to make completion for cammands such as dpkg and apt usable
zstyle ':completion::complete:*' use-cache on
zstyle ':completion::complete:*' cache-path "${ZDOTDIR:-$HOME}/.zcompcache"

# Case-insensitive (all), partial-word, and then substring completion
zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
unsetopt CASE_GLOB

# Group matches and describe
zstyle ':completion:*:*:*:*:*' menu select
zstyle ':completion:*:matches' group 'yes'
zstyle ':completion:*:options' description 'yes'
zstyle ':completion:*:options' auto-description '%d'
zstyle ':completion:*:corrections' format ' %F{green}-- %d (errors: %e) --%f'
zstyle ':completion:*:descriptions' format ' %F{yellow}-- %d --%f'
zstyle ':completion:*:messages' format ' %F{purple} -- %d --%f'
zstyle ':completion:*:warnings' format ' %F{red}-- no matches found --%f'
zstyle ':completion:*:default' list-prompt '%S%M matches%s'
zstyle ':completion:*' format ' %F{yellow}-- %d --%f'
zstyle ':completion:*' group-name ''
zstyle ':completion:*' verbose yes

# Fuzzy match mistyped completions
zstyle ':completion:*' completer _complete _match _approximate
zstyle ':completion:*:match:*' original only
zstyle ':completion:*:approximate:*' max-errors 1 numeric

# Increase the number of errors based on the length of the typed word
zstyle -e ':completion:*:approximate:*' max-errors 'reply=($((($#PREFIX+$#SUFFIX)/3))numeric)'

# Don't complete unavailable commands
zstyle ':completion:*:functions' ignored-patterns '(_*|pre(cmd|exec))'

# Array completion element sorting
zstyle ':completion:*:*:-subscript-:*' tag-order indexes parameters

# Directories
zstyle ':completion:*:default' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*:*:cd:*' tag-order local-directories directory-stack path-directories
zstyle ':completion:*:*:cd:*:directory-stack' menu yes select
zstyle ':completion:*:-tilde-:*' group-order 'named-directories' 'path-directories' 'users' 'expand'
zstyle ':completion:*' squeeze-slashes true

# History
zstyle ':completion:*:history-words' stop yes
zstyle ':completion:*:history-words' remove-all-dups yes
zstyle ':completion:*:history-words' list false
zstyle ':completion:*:history-words' menu yes

# Environmental Variables
zstyle ':completion::*:(-command-|export):*' fake-parameters ${${${_comps[(I)-value-*]#*,}%%,*}:#-*-}

# Populate hostname completion
zstyle -e ':completion:*:hosts' hosts 'reply=(
  ${=${${(f)"$(cat {/etc/ssh_,~/.ssh/known_}hosts(|2)(N) 2>/dev/null)"}%%[#| ]*}//,/ }
  ${=${(f)"$(cat /etc/hosts(|)(N) <<(ypcat hosts 2>/dev/null))"}%%\#*}
  ${=${${${${(@M)${(f)"$(cat ~/.ssh/config 2>/dev/null)"}:#Host *}#Host }:#*\**}:#*\?*}}
)'

# Don't complete uninteresting users...
zstyle ':completion:*:*:*:users' ignored-patterns \
  adm amanda apache avahi beaglidx bin cacti canna clamav daemon \
  dbus distcache dovecot fax ftp games gdm gkrellmd gopher \
  hacluster haldaemon halt hsqldb ident junkbust ldap lp mail \
  mailman mailnull mldonkey mysql nagios \
  named netdump news nfsnobody nobody nscd ntp nut nx openvpn \
  operator pcap postfix postgres privoxy pulse pvm quagga radvd \
  rpc rpcuser rpm shutdown squid sshd sync uucp vcsa xfs '_*'

# ... unless we really want to
zstyle '*' single-ignored show

# Ignore multiple entries
zstyle ':completion:*:(rm|kill|diff):*' ignore-line other
zstyle ':completion:*:rm:*' file-patterns '*:all-files'

# Kill
zstyle ':completion:*:*:*:*:processes' command 'ps -u $USER -o pid,user,comm -w'
zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#) ([0-9a-z-]#)*=01;36=0=01'
zstyle ':completion:*:*:kill:*' menu yes select
zstyle ':completion:*:*:kill:*' force-list always

# Man
zstyle ':completion:*:manuals' separate-sections true
zstyle ':completion:*:manuals.(^1*)' insert-sections true


# Mutt
if [[ -s "$HOME/.mutt/aliases" ]]; then
  zstyle ':completion:*:*:mutt:*' menu yes select
  zstyle ':completion:*:mutt:*' users ${${${(f)"$(<"$HOME/.mutt/aliases")"}#alias[[:space:]]}%%[[:space:]]*}
fi

# SSH/SCP/RSYNC
zstyle ':completion:*:(scp|rsync):*' tag-order 'hosts:-host:host hosts:-domain:domain hosts:-ipaddr:ip\ address *'
zstyle ':completion:*:(scp|rsync):*' group-order users files all-files hosts-domain hosts-host hosts-ipaddr
zstyle ':completion:*:ssh:*' tag-order users 'hosts:-host:host hosts:-domain:domain hosts:-ipaddr:ip\ address *'
zstyle ':completion:*:ssh:*' group-order hosts-domain hosts-host users hosts-ipaddr
zstyle ':completion:*:(ssh|scp|rsync):*:hosts-host' ignored-patterns '*(.|:)*' loopback ip6-loopback localhost ip6-localhost broadcasthost
zstyle ':completion:*:(ssh|scp|rsync):*:hosts-domain' ignored-patterns '<->.<->.<->.<->' '^[-[:alnum:]]##(.[-[:alnum:]]##)##' '*@*'
zstyle ':completion:*:(ssh|scp|rsync):*:hosts-ipaddr' ignored-patterns '^(<->.<->.<->.<->|(|::)([[:xdigit:].]##:(#c,2))##(|%*))' '127.0.0.<->' '255.255.255.255' '::1' 'fe80::*'

# Highlight matching substring while completing
zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
highlights='${PREFIX:+=(#bi)($PREFIX:t)(?)*==31=1;32}':${(s.:.)LS_COLORS}}
zstyle -e ':completion:*' list-colors 'if [[ $words[1] != kill && $words[1] != strace ]]; then reply=( "'$highlights'" ); fi'
unset highlights
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
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