shit

scripts/lfimg

@@ -0,0 +1,29 @@
+#!/bin/sh
+set -euf
+
+if [ -n "${DISPLAY-}" ] && [ -z "${FIFO_UEBERZUG-}" ]; then
+  export FIFO_UEBERZUG="${TMPDIR:-/tmp}/lf-ueberzug-$$"
+
+  cleanup() {
+    exec 3>&-
+    rm -- "$FIFO_UEBERZUG"
+  }
+
+  mkfifo -- "$FIFO_UEBERZUG"
+  # Execute ueberzug in a loop in case it crashes. Ueberzug dies if its
+  # associated window is closed. This breaks image previews when using tmux and
+  # reattaching to an existing session.
+  while ! ueberzug layer -s <"$FIFO_UEBERZUG"; do :; done &
+  # Open the FIFO for writing. FIFO readers receive an EOF once all writers
+  # have closed their respective file descriptors. Holding a file descriptor
+  # will effectively keep ueberzug alive as long as lf lives.
+  exec 3>"$FIFO_UEBERZUG"
+  trap cleanup EXIT
+
+  # Start lf without passing in the file descriptor. This is done to avoid the
+  # lf server being passed the file descriptor, which would cause ueberzug to
+  # live longer than is strictly necessary.
+  lf "$@" 3>&-
+else
+  exec lf "$@"
+fi