fzf/shell/completion.zsh
2015-05-09 21:04:59 +09:00

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#!/bin/zsh
# ____ ____
# / __/___ / __/
# / /_/_ / / /_
# / __/ / /_/ __/
# /_/ /___/_/-completion.zsh
#
# - $FZF_TMUX (default: 1)
# - $FZF_TMUX_HEIGHT (default: '40%')
# - $FZF_COMPLETION_TRIGGER (default: '**')
# - $FZF_COMPLETION_OPTS (default: empty)
_fzf_path_completion() {
local base lbuf find_opts fzf_opts suffix tail fzf dir leftover matches
base=$1
lbuf=$2
find_opts=$3
fzf_opts=$4
suffix=$5
tail=$6
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
dir="$base"
while [ 1 ]; do
if [ -z "$dir" -o -d ${~dir} ]; then
leftover=${base/#"$dir"}
leftover=${leftover/#\/}
[ "$dir" = './' ] && dir=''
matches=$(\find -L ${~dir}* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
printf "%q$suffix " "$item"
done)
matches=${matches% }
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches$tail"
zle redisplay
fi
return
fi
dir=$(dirname "$dir")
[[ "$dir" =~ /$ ]] || dir="$dir"/
done
}
_fzf_all_completion() {
_fzf_path_completion "$1" "$2" \
"-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
"-m" "" " "
}
_fzf_dir_completion() {
_fzf_path_completion "$1" "$2" \
"-name .git -prune -o -name .svn -prune -o -type d -print" \
"" "/" ""
}
_fzf_list_completion() {
local prefix lbuf fzf_opts src fzf matches
prefix=$1
lbuf=$2
fzf_opts=$3
read -r src
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
matches=$(eval "$src" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$prefix")
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches "
zle redisplay
fi
}
_fzf_telnet_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
_fzf_ssh_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i ^host | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
_fzf_env_var_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
declare -xp | sed 's/=.*//' | sed 's/.* //'
EOF
}
_fzf_alias_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
alias | sed 's/=.*//'
EOF
}
fzf-zsh-completion() {
local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
# http://zsh.sourceforge.net/FAQ/zshfaq03.html
tokens=(${=LBUFFER})
if [ ${#tokens} -lt 1 ]; then
zle expand-or-complete
return
fi
cmd=${tokens[1]}
trigger=${FZF_COMPLETION_TRIGGER:-**}
# Trigger sequence given
tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
if [ ${#tokens} -gt 1 -a $tail = $trigger ]; then
d_cmds=(cd pushd rmdir)
prefix=${tokens[-1]:0:-${#trigger}}
lbuf=${LBUFFER:0:-${#tokens[-1]}}
if [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
_fzf_dir_completion "$prefix" $lbuf
elif [ $cmd = telnet ]; then
_fzf_telnet_completion "$prefix" $lbuf
elif [ $cmd = ssh ]; then
_fzf_ssh_completion "$prefix" $lbuf
elif [ $cmd = unset -o $cmd = export ]; then
_fzf_env_var_completion "$prefix" $lbuf
elif [ $cmd = unalias ]; then
_fzf_alias_completion "$prefix" $lbuf
else
_fzf_all_completion "$prefix" $lbuf
fi
# Kill completion (do not require trigger sequence)
elif [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
matches=$(ps -ef | sed 1d | ${=fzf} ${=FZF_COMPLETION_OPTS} -m | awk '{print $2}' | tr '\n' ' ')
if [ -n "$matches" ]; then
LBUFFER="$LBUFFER$matches"
zle redisplay
fi
# Fall back to default completion
else
zle expand-or-complete
fi
}
zle -N fzf-zsh-completion
bindkey '^I' fzf-zsh-completion