lf tweaks included ueberzug images

2 files changed, 28 insertions, 0 deletions

diff --git a/.local/bin/lf-cleaner b/.local/bin/lf-cleaner
new file mode 100755
index 0000000..a184d84
--- /dev/null
+++ b/.local/bin/lf-cleaner
@@ -0,0 +1,4 @@
+#!/bin/sh
+if [ -n "$FIFO_UEBERZUG" ]; then
+	printf '{"action": "remove", "identifier": "PREVIEW"}\n' > "$FIFO_UEBERZUG"
+fi
diff --git a/.local/bin/lfub b/.local/bin/lfub
new file mode 100755
index 0000000..2cf470a
--- /dev/null
+++ b/.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