# ____ ____ # / __/___ / __/ # / /_/_ / / /_ # / __/ / /_/ __/ # /_/ /___/_/ completion.zsh # # - $FZF_TMUX (default: 0) # - $FZF_TMUX_OPTS (default: '-d 40%') # - $FZF_COMPLETION_TRIGGER (default: '**') # - $FZF_COMPLETION_OPTS (default: empty) # Both branches of the following `if` do the same thing -- define # __fzf_completion_options such that `eval $__fzf_completion_options` sets # all options to the same values they currently have. We'll do just that at # the bottom of the file after changing options to what we prefer. # # IMPORTANT: Until we get to the `emulate` line, all words that *can* be quoted # *must* be quoted in order to prevent alias expansion. In addition, code must # be written in a way works with any set of zsh options. This is very tricky, so # careful when you change it. # # Start by loading the builtin zsh/parameter module. It provides `options` # associative array that stores current shell options. if 'zmodload' 'zsh/parameter' 2>'/dev/null' && (( ${+options} )); then # This is the fast branch and it gets taken on virtually all Zsh installations. # # ${(kv)options[@]} expands to array of keys (option names) and values ("on" # or "off"). The subsequent expansion# with (j: :) flag joins all elements # together separated by spaces. __fzf_completion_options ends up with a value # like this: "options=(shwordsplit off aliases on ...)". __fzf_completion_options="options=(${(j: :)${(kv)options[@]}})" else # This branch is much slower because it forks to get the names of all # zsh options. It's possible to eliminate this fork but it's not worth the # trouble because this branch gets taken only on very ancient or broken # zsh installations. () { # That `()` above defines an anonymous function. This is essentially a scope # for local parameters. We use it to avoid polluting global scope. 'local' '__fzf_opt' __fzf_completion_options="setopt" # `set -o` prints one line for every zsh option. Each line contains option # name, some spaces, and then either "on" or "off". We just want option names. # Expansion with (@f) flag splits a string into lines. The outer expansion # removes spaces and everything that follow them on every line. __fzf_opt # ends up iterating over option names: shwordsplit, aliases, etc. for __fzf_opt in "${(@)${(@f)$(set -o)}%% *}"; do if [[ -o "$__fzf_opt" ]]; then # Option $__fzf_opt is currently on, so remember to set it back on. __fzf_completion_options+=" -o $__fzf_opt" else # Option $__fzf_opt is currently off, so remember to set it back off. __fzf_completion_options+=" +o $__fzf_opt" fi done # The value of __fzf_completion_options here looks like this: # "setopt +o shwordsplit -o aliases ..." } fi # Enable the default zsh options (those marked with in `man zshoptions`) # but without `aliases`. Aliases in functions are expanded when functions are # defined, so if we disable aliases here, we'll be sure to have no pesky # aliases in any of our functions. This way we won't need prefix every # command with `command` or to quote every word to defend against global # aliases. Note that `aliases` is not the only option that's important to # control. There are several others that could wreck havoc if they are set # to values we don't expect. With the following `emulate` command we # sidestep this issue entirely. 'emulate' 'zsh' '-o' 'no_aliases' # This brace is the start of try-always block. The `always` part is like # `finally` in lesser languages. We use it to *always* restore user options. { # Bail out if not interactive shell. [[ -o interactive ]] || return 0 # To use custom commands instead of find, override _fzf_compgen_{path,dir} if ! declare -f _fzf_compgen_path > /dev/null; then _fzf_compgen_path() { echo "$1" command find -L "$1" \ -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \ -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@' } fi if ! declare -f _fzf_compgen_dir > /dev/null; then _fzf_compgen_dir() { command find -L "$1" \ -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \ -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@' } fi ########################################################### __fzf_comprun() { if [[ "$(type _fzf_comprun 2>&1)" =~ function ]]; then _fzf_comprun "$@" elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then shift if [ -n "$FZF_TMUX_OPTS" ]; then fzf-tmux ${(Q)${(Z+n+)FZF_TMUX_OPTS}} -- "$@" else fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%} -- "$@" fi else shift fzf "$@" fi } # Extract the name of the command. e.g. foo=1 bar baz** __fzf_extract_command() { local token tokens tokens=(${(z)1}) for token in $tokens; do token=${(Q)token} if [[ "$token" =~ [[:alnum:]] && ! "$token" =~ "=" ]]; then echo "$token" return fi done echo "${tokens[1]}" } __fzf_generic_path_completion() { local base lbuf cmd compgen fzf_opts suffix tail dir leftover matches base=$1 lbuf=$2 cmd=$(__fzf_extract_command "$lbuf") compgen=$3 fzf_opts=$4 suffix=$5 tail=$6 setopt localoptions nonomatch eval "base=$base" [[ $base = *"/"* ]] && dir="$base" while [ 1 ]; do if [[ -z "$dir" || -d ${dir} ]]; then leftover=${base/#"$dir"} leftover=${leftover/#\/} [ -z "$dir" ] && dir='.' [ "$dir" != "/" ] && dir="${dir/%\//}" matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" __fzf_comprun "$cmd" ${(Q)${(Z+n+)fzf_opts}} -q "$leftover" | while read item; do echo -n "${(q)item}$suffix " done) matches=${matches% } if [ -n "$matches" ]; then LBUFFER="$lbuf$matches$tail" fi zle reset-prompt break fi dir=$(dirname "$dir") dir=${dir%/}/ done } _fzf_path_completion() { __fzf_generic_path_completion "$1" "$2" _fzf_compgen_path \ "-m" "" " " } _fzf_dir_completion() { __fzf_generic_path_completion "$1" "$2" _fzf_compgen_dir \ "" "/" "" } _fzf_feed_fifo() ( command rm -f "$1" mkfifo "$1" cat <&0 > "$1" & ) _fzf_complete() { setopt localoptions ksh_arrays # Split arguments around -- local args rest str_arg i sep args=("$@") sep= for i in {0..${#args[@]}}; do if [[ "${args[$i]}" = -- ]]; then sep=$i break fi done if [[ -n "$sep" ]]; then str_arg= rest=("${args[@]:$((sep + 1)):${#args[@]}}") args=("${args[@]:0:$sep}") else str_arg=$1 args=() shift rest=("$@") fi local fifo lbuf cmd matches post fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$" lbuf=${rest[0]} cmd=$(__fzf_extract_command "$lbuf") post="${funcstack[1]}_post" type $post > /dev/null 2>&1 || post=cat _fzf_feed_fifo "$fifo" matches=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $str_arg" __fzf_comprun "$cmd" "${args[@]}" -q "${(Q)prefix}" < "$fifo" | $post | tr '\n' ' ') if [ -n "$matches" ]; then LBUFFER="$lbuf$matches" fi zle reset-prompt command rm -f "$fifo" } _fzf_complete_telnet() { _fzf_complete +m -- "$@" < <( command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u ) } _fzf_complete_ssh() { _fzf_complete +m -- "$@" < <( setopt localoptions nonomatch command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \ <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \ <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u ) } _fzf_complete_export() { _fzf_complete -m -- "$@" < <( declare -xp | sed 's/=.*//' | sed 's/.* //' ) } _fzf_complete_unset() { _fzf_complete -m -- "$@" < <( declare -xp | sed 's/=.*//' | sed 's/.* //' ) } _fzf_complete_unalias() { _fzf_complete +m -- "$@" < <( alias | sed 's/=.*//' ) } _fzf_complete_kill() { _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <( command ps -ef | sed 1d ) } _fzf_complete_kill_post() { awk '{print $2}' } fzf-completion() { local tokens cmd prefix trigger tail matches lbuf d_cmds setopt localoptions noshwordsplit noksh_arrays noposixbuiltins # http://zsh.sourceforge.net/FAQ/zshfaq03.html # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags tokens=(${(z)LBUFFER}) if [ ${#tokens} -lt 1 ]; then zle ${fzf_default_completion:-expand-or-complete} return fi cmd=$(__fzf_extract_command "$LBUFFER") # Explicitly allow for empty trigger. trigger=${FZF_COMPLETION_TRIGGER-'**'} [ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("") # When the trigger starts with ';', it becomes a separate token if [[ ${LBUFFER} = *"${tokens[-2]}${tokens[-1]}" ]]; then tokens[-2]="${tokens[-2]}${tokens[-1]}" tokens=(${tokens[0,-2]}) fi lbuf=$LBUFFER tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))} # Kill completion (do not require trigger sequence) if [ "$cmd" = kill -a ${LBUFFER[-1]} = ' ' ]; then tail=$trigger tokens+=$trigger lbuf="$lbuf$trigger" fi # Trigger sequence given if [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir}) [ -z "$trigger" ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}} [ -n "${tokens[-1]}" ] && lbuf=${lbuf:0:-${#tokens[-1]}} if eval "type _fzf_complete_${cmd} > /dev/null"; then prefix="$prefix" eval _fzf_complete_${cmd} ${(q)lbuf} elif [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then _fzf_dir_completion "$prefix" "$lbuf" else _fzf_path_completion "$prefix" "$lbuf" fi # Fall back to default completion else zle ${fzf_default_completion:-expand-or-complete} fi } [ -z "$fzf_default_completion" ] && { binding=$(bindkey '^I') [[ $binding =~ 'undefined-key' ]] || fzf_default_completion=$binding[(s: :w)2] unset binding } zle -N fzf-completion bindkey '^I' fzf-completion } always { # Restore the original options. eval $__fzf_completion_options 'unset' '__fzf_completion_options' }