fzf/shell/completion.zsh

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#!/bin/zsh
# ____ ____
# / __/___ / __/
# / /_/_ / / /_
# / __/ / /_/ __/
# /_/ /___/_/-completion.zsh
#
# - $FZF_TMUX (default: 1)
# - $FZF_TMUX_HEIGHT (default: '40%')
# - $FZF_COMPLETION_TRIGGER (default: '**')
# - $FZF_COMPLETION_OPTS (default: empty)
_fzf_path_completion() {
local base lbuf find_opts fzf_opts suffix tail fzf dir leftover matches nnm
base=${(Q)1}
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lbuf=$2
find_opts=$3
fzf_opts=$4
suffix=$5
tail=$6
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
if ! setopt | grep nonomatch > /dev/null; then
nnm=1
setopt nonomatch
fi
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dir="$base"
while [ 1 ]; do
if [ -z "$dir" -o -d ${~dir} ]; then
leftover=${base/#"$dir"}
leftover=${leftover/#\/}
[ "$dir" = './' ] && dir=''
dir=${~dir}
matches=$(\find -L $dir* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
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printf "%q$suffix " "$item"
done)
matches=${matches% }
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches$tail"
zle redisplay
fi
break
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fi
dir=$(dirname "$dir")
dir=${dir%/}/
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done
[ -n "$nnm" ] && unsetopt nonomatch
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}
_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
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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" "$2" '+m' << "EOF"
alias | sed 's/=.*//'
EOF
}
fzf-completion() {
local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
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# http://zsh.sourceforge.net/FAQ/zshfaq03.html
# http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
tokens=(${(z)LBUFFER})
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if [ ${#tokens} -lt 1 ]; then
eval "zle ${fzf_default_completion:-expand-or-complete}"
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return
fi
cmd=${tokens[1]}
# Explicitly allow for empty trigger.
trigger=${FZF_COMPLETION_TRIGGER-'**'}
[ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
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tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
# Kill completion (do not require trigger sequence)
if [ $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
# Trigger sequence given
elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
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d_cmds=(cd pushd rmdir)
[ -z "$trigger" ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
[ -z "${tokens[-1]}" ] && lbuf=$LBUFFER || lbuf=${LBUFFER:0:-${#tokens[-1]}}
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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
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fi
# Fall back to default completion
else
eval "zle ${fzf_default_completion:-expand-or-complete}"
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fi
}
[ -z "$fzf_default_completion" ] &&
fzf_default_completion=$(bindkey '^I' | grep -v undefined-key | awk '{print $2}')
zle -N fzf-completion
bindkey '^I' fzf-completion
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