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Christian Nieves
233
fzf/fzf/bin/fzf-tmux
Executable file
233
fzf/fzf/bin/fzf-tmux
Executable file
@ -0,0 +1,233 @@
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#!/usr/bin/env bash
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# fzf-tmux: starts fzf in a tmux pane
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# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
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fail() {
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>&2 echo "$1"
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exit 2
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}
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fzf="$(command -v fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
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[[ -x "$fzf" ]] || fail 'fzf executable not found'
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tmux_args=()
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args=()
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opt=""
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skip=""
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swap=""
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close=""
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term=""
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[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines) || lines=$(tmux display-message -p "#{pane_height}")
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[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols) || columns=$(tmux display-message -p "#{pane_width}")
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help() {
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>&2 echo 'usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
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LAYOUT OPTIONS:
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(default layout: -d 50%)
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Popup window (requires tmux 3.2 or above):
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-p [WIDTH[%][,HEIGHT[%]]] (default: 50%)
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-w WIDTH[%]
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-h HEIGHT[%]
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-x COL
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-y ROW
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Split pane:
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-u [HEIGHT[%]] Split above (up)
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-d [HEIGHT[%]] Split below (down)
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-l [WIDTH[%]] Split left
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-r [WIDTH[%]] Split right
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'
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exit
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}
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while [[ $# -gt 0 ]]; do
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arg="$1"
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shift
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[[ -z "$skip" ]] && case "$arg" in
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-)
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term=1
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;;
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--help)
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help
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;;
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--version)
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echo "fzf-tmux (with fzf $("$fzf" --version))"
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exit
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;;
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-p*|-w*|-h*|-x*|-y*|-d*|-u*|-r*|-l*)
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if [[ "$arg" =~ ^-[pwhxy] ]]; then
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[[ "$opt" =~ "-K -E" ]] || opt="-K -E"
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elif [[ "$arg" =~ ^.[lr] ]]; then
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opt="-h"
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if [[ "$arg" =~ ^.l ]]; then
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opt="$opt -d"
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swap="; swap-pane -D ; select-pane -L"
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close="; tmux swap-pane -D"
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fi
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else
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opt=""
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if [[ "$arg" =~ ^.u ]]; then
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opt="$opt -d"
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swap="; swap-pane -D ; select-pane -U"
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close="; tmux swap-pane -D"
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fi
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fi
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if [[ ${#arg} -gt 2 ]]; then
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size="${arg:2}"
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else
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if [[ "$1" =~ ^[0-9%,]+$ ]] || [[ "$1" =~ ^[A-Z]$ ]]; then
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size="$1"
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shift
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else
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continue
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fi
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fi
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if [[ "$arg" =~ ^-p ]]; then
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if [[ -n "$size" ]]; then
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w=${size%%,*}
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h=${size##*,}
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opt="$opt -w$w -h$h"
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fi
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elif [[ "$arg" =~ ^-[whxy] ]]; then
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opt="$opt ${arg:0:2}$size"
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elif [[ "$size" =~ %$ ]]; then
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size=${size:0:((${#size}-1))}
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if [[ -n "$swap" ]]; then
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opt="$opt -p $(( 100 - size ))"
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else
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opt="$opt -p $size"
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fi
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else
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if [[ -n "$swap" ]]; then
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if [[ "$arg" =~ ^.l ]]; then
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max=$columns
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else
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max=$lines
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fi
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size=$(( max - size ))
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[[ $size -lt 0 ]] && size=0
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opt="$opt -l $size"
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else
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opt="$opt -l $size"
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fi
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fi
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;;
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--)
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# "--" can be used to separate fzf-tmux options from fzf options to
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# avoid conflicts
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skip=1
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tmux_args=("${args[@]}")
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args=()
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continue
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;;
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*)
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args+=("$arg")
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;;
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esac
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[[ -n "$skip" ]] && args+=("$arg")
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done
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if [[ -z "$TMUX" ]]; then
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"$fzf" "${args[@]}"
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exit $?
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fi
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# --height option is not allowed. CTRL-Z is also disabled.
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args=("${args[@]}" "--no-height" "--bind=ctrl-z:ignore")
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# Handle zoomed tmux pane without popup options by moving it to a temp window
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if [[ ! "$opt" =~ "-K -E" ]] && tmux list-panes -F '#F' | grep -q Z; then
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zoomed_without_popup=1
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original_window=$(tmux display-message -p "#{window_id}")
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tmp_window=$(tmux new-window -d -P -F "#{window_id}" "bash -c 'while :; do for c in \\| / - '\\;' do sleep 0.2; printf \"\\r\$c fzf-tmux is running\\r\"; done; done'")
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tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
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fi
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set -e
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# Clean up named pipes on exit
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id=$RANDOM
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argsf="${TMPDIR:-/tmp}/fzf-args-$id"
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fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
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fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
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fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
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tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
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cleanup() {
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\rm -f $argsf $fifo1 $fifo2 $fifo3
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# Restore tmux window options
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if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
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eval "tmux ${tmux_win_opts[*]}"
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fi
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# Remove temp window if we were zoomed without popup options
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if [[ -n "$zoomed_without_popup" ]]; then
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tmux display-message -p "#{window_id}" > /dev/null
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tmux swap-pane -t $original_window \; \
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select-window -t $original_window \; \
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kill-window -t $tmp_window \; \
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resize-pane -Z
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fi
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if [[ $# -gt 0 ]]; then
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trap - EXIT
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exit 130
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fi
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}
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trap 'cleanup 1' SIGUSR1
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trap 'cleanup' EXIT
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envs="export TERM=$TERM "
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[[ "$opt" =~ "-K -E" ]] && FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
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[[ -n "$FZF_DEFAULT_OPTS" ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
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[[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
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echo "$envs;" > "$argsf"
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# Build arguments to fzf
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opts=$(printf "%q " "${args[@]}")
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pppid=$$
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echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" >> $argsf
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close="; trap - EXIT SIGINT SIGTERM $close"
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export TMUX=$(cut -d , -f 1,2 <<< "$TMUX")
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mkfifo -m o+w $fifo2
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if [[ "$opt" =~ "-K -E" ]]; then
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cat $fifo2 &
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if [[ -n "$term" ]] || [[ -t 0 ]]; then
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cat <<< "\"$fzf\" $opts > $fifo2; out=\$? $close; exit \$out" >> $argsf
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else
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mkfifo $fifo1
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cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; out=\$? $close; exit \$out" >> $argsf
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cat <&0 > $fifo1 &
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fi
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# tmux dropped the support for `-K`, `-R` to popup command
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# TODO: We can remove this once tmux 3.2 is released
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if [[ ! "$(tmux popup --help 2>&1)" =~ '-R shell-command' ]]; then
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opt="${opt/-K/}"
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else
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opt="${opt} -R"
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fi
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tmux popup -d "$PWD" "${tmux_args[@]}" $opt "bash $argsf" > /dev/null 2>&1
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exit $?
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fi
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mkfifo -m o+w $fifo3
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if [[ -n "$term" ]] || [[ -t 0 ]]; then
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cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" >> $argsf
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else
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mkfifo $fifo1
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cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
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cat <&0 > $fifo1 &
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fi
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tmux set-window-option synchronize-panes off \;\
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set-window-option remain-on-exit off \;\
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split-window -c "$PWD" $opt "${tmux_args[@]}" "bash -c 'exec -a fzf bash $argsf'" $swap \
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> /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
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cat $fifo2
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exit "$(cat $fifo3)"
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