feat: woof

1 files changed, 234 insertions, 0 deletions

diff --git a/bin/fzf-tmux b/bin/fzf-tmux
new file mode 100755
index 0000000..7daaf60
--- /dev/null
+++ b/bin/fzf-tmux
@@ -0,0 +1,234 @@
+#!/usr/bin/env bash
+# fzf-tmux: starts fzf in a tmux pane
+# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
+
+fail() {
+    echo >&2 "$1"
+    exit 2
+}
+
+fzf="$(command -v fzf 2>/dev/null)" || fzf="$(dirname "$0")/fzf"
+[[ -x "$fzf" ]] || fail 'fzf executable not found'
+
+tmux_args=()
+args=()
+opt=""
+skip=""
+swap=""
+close=""
+term=""
+[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines) || lines=$(tmux display-message -p "#{pane_height}")
+[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols) || columns=$(tmux display-message -p "#{pane_width}")
+
+help() {
+    echo >&2 'usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
+
+  LAYOUT OPTIONS:
+    (default layout: -d 50%)
+
+    Popup window (requires tmux 3.2 or above):
+      -p [WIDTH[%][,HEIGHT[%]]]  (default: 50%)
+      -w WIDTH[%]
+      -h HEIGHT[%]
+      -x COL
+      -y ROW
+
+    Split pane:
+      -u [HEIGHT[%]]             Split above (up)
+      -d [HEIGHT[%]]             Split below (down)
+      -l [WIDTH[%]]              Split left
+      -r [WIDTH[%]]              Split right
+'
+    exit
+}
+
+while [[ $# -gt 0 ]]; do
+    arg="$1"
+    shift
+    [[ -z "$skip" ]] && case "$arg" in
+    -)
+        term=1
+        ;;
+    --help)
+        help
+        ;;
+    --version)
+        echo "fzf-tmux (with fzf $("$fzf" --version))"
+        exit
+        ;;
+    -p* | -w* | -h* | -x* | -y* | -d* | -u* | -r* | -l*)
+        if [[ "$arg" =~ ^-[pwhxy] ]]; then
+            [[ "$opt" =~ "-K -E" ]] || opt="-K -E"
+        elif [[ "$arg" =~ ^.[lr] ]]; then
+            opt="-h"
+            if [[ "$arg" =~ ^.l ]]; then
+                opt="$opt -d"
+                swap="; swap-pane -D ; select-pane -L"
+                close="; tmux swap-pane -D"
+            fi
+        else
+            opt=""
+            if [[ "$arg" =~ ^.u ]]; then
+                opt="$opt -d"
+                swap="; swap-pane -D ; select-pane -U"
+                close="; tmux swap-pane -D"
+            fi
+        fi
+        if [[ ${#arg} -gt 2 ]]; then
+            size="${arg:2}"
+        else
+            if [[ "$1" =~ ^[0-9%,]+$ ]] || [[ "$1" =~ ^[A-Z]$ ]]; then
+                size="$1"
+                shift
+            else
+                continue
+            fi
+        fi
+
+        if [[ "$arg" =~ ^-p ]]; then
+            if [[ -n "$size" ]]; then
+                w=${size%%,*}
+                h=${size##*,}
+                opt="$opt -w$w -h$h"
+            fi
+        elif [[ "$arg" =~ ^-[whxy] ]]; then
+            opt="$opt ${arg:0:2}$size"
+        elif [[ "$size" =~ %$ ]]; then
+            size=${size:0:((${#size} - 1))}
+            if [[ -n "$swap" ]]; then
+                opt="$opt -p $((100 - size))"
+            else
+                opt="$opt -p $size"
+            fi
+        else
+            if [[ -n "$swap" ]]; then
+                if [[ "$arg" =~ ^.l ]]; then
+                    max=$columns
+                else
+                    max=$lines
+                fi
+                size=$((max - size))
+                [[ $size -lt 0 ]] && size=0
+                opt="$opt -l $size"
+            else
+                opt="$opt -l $size"
+            fi
+        fi
+        ;;
+    --)
+        # "--" can be used to separate fzf-tmux options from fzf options to
+        # avoid conflicts
+        skip=1
+        tmux_args=("${args[@]}")
+        args=()
+        continue
+        ;;
+    *)
+        args+=("$arg")
+        ;;
+    esac
+    [[ -n "$skip" ]] && args+=("$arg")
+done
+
+if [[ -z "$TMUX" ]]; then
+    "$fzf" "${args[@]}"
+    exit $?
+fi
+
+# --height option is not allowed. CTRL-Z is also disabled.
+args=("${args[@]}" "--no-height" "--bind=ctrl-z:ignore")
+
+# Handle zoomed tmux pane without popup options by moving it to a temp window
+if [[ ! "$opt" =~ "-K -E" ]] && tmux list-panes -F '#F' | grep -q Z; then
+    zoomed_without_popup=1
+    original_window=$(tmux display-message -p "#{window_id}")
+    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'")
+    tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
+fi
+
+set -e
+
+# Clean up named pipes on exit
+id=$RANDOM
+argsf="${TMPDIR:-/tmp}/fzf-args-$id"
+fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
+fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
+fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
+tmux_win_opts=($(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/'))
+cleanup() {
+    \rm -f $argsf $fifo1 $fifo2 $fifo3
+
+    # Restore tmux window options
+    if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
+        eval "tmux ${tmux_win_opts[*]}"
+    fi
+
+    # Remove temp window if we were zoomed without popup options
+    if [[ -n "$zoomed_without_popup" ]]; then
+        tmux display-message -p "#{window_id}" >/dev/null
+        tmux swap-pane -t $original_window \; \
+            select-window -t $original_window \; \
+            kill-window -t $tmp_window \; \
+            resize-pane -Z
+    fi
+
+    if [[ $# -gt 0 ]]; then
+        trap - EXIT
+        exit 130
+    fi
+}
+trap 'cleanup 1' SIGUSR1
+trap 'cleanup' EXIT
+
+envs="export TERM=$TERM "
+[[ "$opt" =~ "-K -E" ]] && FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
+[[ -n "$FZF_DEFAULT_OPTS" ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
+[[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
+echo "$envs;" >"$argsf"
+
+# Build arguments to fzf
+opts=$(printf "%q " "${args[@]}")
+
+pppid=$$
+echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" >>$argsf
+close="; trap - EXIT SIGINT SIGTERM $close"
+
+export TMUX=$(cut -d , -f 1,2 <<<"$TMUX")
+mkfifo -m o+w $fifo2
+if [[ "$opt" =~ "-K -E" ]]; then
+    cat $fifo2 &
+    if [[ -n "$term" ]] || [[ -t 0 ]]; then
+        cat <<<"\"$fzf\" $opts > $fifo2; out=\$? $close; exit \$out" >>$argsf
+    else
+        mkfifo $fifo1
+        cat <<<"\"$fzf\" $opts < $fifo1 > $fifo2; out=\$? $close; exit \$out" >>$argsf
+        cat <&0 >$fifo1 &
+    fi
+
+    # tmux dropped the support for `-K`, `-R` to popup command
+    #   TODO: We can remove this once tmux 3.2 is released
+    if [[ ! "$(tmux popup --help 2>&1)" =~ '-R shell-command' ]]; then
+        opt="${opt/-K/}"
+    else
+        opt="${opt} -R"
+    fi
+
+    tmux popup -d "$PWD" "${tmux_args[@]}" $opt "bash $argsf" >/dev/null 2>&1
+    exit $?
+fi
+
+mkfifo -m o+w $fifo3
+if [[ -n "$term" ]] || [[ -t 0 ]]; then
+    cat <<<"\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" >>$argsf
+else
+    mkfifo $fifo1
+    cat <<<"\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >>$argsf
+    cat <&0 >$fifo1 &
+fi
+tmux set-window-option synchronize-panes off \; set-window-option remain-on-exit off \; split-window -c "$PWD" $opt "${tmux_args[@]}" "bash -c 'exec -a fzf bash $argsf'" $swap \
+    >/dev/null 2>&1 || {
+    "$fzf" "${args[@]}"
+    exit $?
+}
+cat $fifo2
+exit "$(cat $fifo3)"