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