lf tweaks included ueberzug images

.config/lf/lfrc

@@ -8,6 +8,8 @@ set scrolloff 10
 set icons
 set period 1
 set hiddenfiles ".*:*.aux:*.log:*.bbl:*.bcf:*.blg:*.run.xml"
+set ratios 1:2:3
+set cleaner ~/.local/bin/lf-cleaner
 
 # Vars that depend on environmental variables
 $lf -remote "send $id set previewer ${XDG_CONFIG_HOME:-$HOME/.config}/lf/scope"
@@ -15,8 +17,9 @@ $lf -remote "send $id set previewer ${XDG_CONFIG_HOME:-$HOME/.config}/lf/scope"
 # cmds/functions
 cmd open ${{
     case $(file --mime-type "$(readlink -f $f)" -b) in
+	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) localc $fx ;;
 	image/vnd.djvu|application/pdf|application/octet-stream|application/postscript) setsid -f zathura $fx >/dev/null 2>&1 ;;
-        text/*) $EDITOR $fx;;
+        text/*|application/json|inode/x-empty) $EDITOR $fx;;
 	image/x-xcf) setsid -f gimp $f >/dev/null 2>&1 ;;
 	image/svg+xml) display -- $f ;;
 	image/*) rotdir $f | grep -i "\.\(png\|jpg\|jpeg\|gif\|webp\|tif\|ico\)\(_large\)*$" | setsid -f sxiv -aio 2>/dev/null | lf-select & ;;
@@ -94,8 +97,8 @@ map O $mimeopen --ask $f
 map A rename # at the very end
 map c push A<c-u> # new rename
 map I push A<c-a> # at the very beginning
-map i push A<a-b><a-b><a-f> # before extension
-map a push A<a-b> # after extension
+map i push A<a-b><a-b><a-f> # before extention
+map a push A<a-b> # after extention
 map B bulkrename
 map b $setbg $f
 
@@ -105,5 +108,7 @@ map V push :!nvim<space>
 
 map W $setsid -f $TERMINAL >/dev/null 2>&1
 
+map Y $printf "%s" "$fx" | xclip -selection clipboard
+
 # Source Bookmarks
 source "~/.config/lf/shortcutrc"

.config/shell/aliasrc

@@ -45,6 +45,7 @@ alias \
 	z="zathura"
 
 alias \
+	lf="lfub" \
 	magit="nvim -c MagitOnly" \
 	ref="shortcuts >/dev/null; source ${XDG_CONFIG_HOME:-$HOME/.config}/shell/shortcutrc ; source ${XDG_CONFIG_HOME:-$HOME/.config}/shell/zshnameddirrc" \
 	weath="less -S ${XDG_DATA_HOME:-$HOME/.local/share}/weatherreport" \

.local/bin/lf-cleaner

@@ -0,0 +1,4 @@
+#!/bin/sh
+if [ -n "$FIFO_UEBERZUG" ]; then
+	printf '{"action": "remove", "identifier": "PREVIEW"}\n' > "$FIFO_UEBERZUG"
+fi

.local/bin/lfub

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# This is a wrapper script for lb that allows it to create image previews with
+# ueberzug. This works in concert with the lf configuration file and the
+# lf-cleaner script.
+
+set -e
+
+cleanup() {
+    exec 3>&-
+	rm "$FIFO_UEBERZUG"
+}
+
+if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
+	lf "$@"
+else
+	[ ! -d "$HOME/.cache/lf" ] && mkdir -p "$HOME/.cache/lf"
+	export FIFO_UEBERZUG="$HOME/.cache/lf/ueberzug-$$"
+	mkfifo "$FIFO_UEBERZUG"
+	ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
+	exec 3>"$FIFO_UEBERZUG"
+	trap cleanup EXIT
+	lf "$@" 3>&-
+fi