mirror of https://github.com/jarun/nnn.git
78 lines
2.5 KiB
Bash
Executable File
78 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env sh
|
|
|
|
# Description: File previewer for kitty term using NNN_FIFO
|
|
#
|
|
# Dependencies:
|
|
# - kitty (https://sw.kovidgoyal.net/kitty/) with allow_remote_control on
|
|
# - file
|
|
# - exa (https://github.com/ogham/exa) (fallback: ls)
|
|
# - bat (https://github.com/sharkdp/bat) (fallback: cat)
|
|
# - mediainfo (fallback: file)
|
|
#
|
|
# Usage:
|
|
# This plugin only works in kitty (https://sw.kovidgoyal.net/kitty/),
|
|
# and with kitty's 'allow_remote_control' option turned on.
|
|
# You need to set a NNN_FIFO path and set a key for the plugin,
|
|
# then start `nnn`:
|
|
#
|
|
# $ NNN_FIFO=/tmp/nnn.fifo nnn
|
|
#
|
|
# Then in `nnn`, launch the `preview-kitty` plugin.
|
|
#
|
|
# If you provide the same NNN_FIFO to all nnn instances, there will be a
|
|
# single common preview window. If you provide different FIFO path, they
|
|
# will be independent.
|
|
#
|
|
# Shell: POSIX compliant
|
|
# Authors: Léo Villeveygoux
|
|
|
|
preview_file () {
|
|
kill %% 2>/dev/null
|
|
clear
|
|
lines=$(($(tput lines)-1))
|
|
cols=$(tput cols)
|
|
mime="$(file -b --mime-type "$1")"
|
|
encoding="$(file -b --mime-encoding "$1")"
|
|
|
|
if [ -d "$1" ]; then
|
|
# Print directory tree
|
|
# shellcheck disable=SC2015
|
|
cd "$1" && \
|
|
(COLUMNS=$cols exa -G --colour=always 2>/dev/null ||\
|
|
ls --color=alway) | head -n $lines &
|
|
# remove second clause to preview SVG files (but this is slow)
|
|
elif [ "${mime%%/*}" = "image" ] && [ "$encoding" = "binary" ] ; then
|
|
kitty +kitten icat --silent --transfer-mode=stream --stdin=no "$1" &
|
|
elif [ "$encoding" = "binary" ] ; then
|
|
# Binary file: show file info
|
|
printf -- "-------- \033[1;31mBinary file\033[0m --------\n"
|
|
(mediainfo "$1" 2>/dev/null || file -b "$1") | head -n $((lines - 1)) &
|
|
else
|
|
# Text file: print colored file content
|
|
(bat --terminal-width="$cols" --paging=never --decorations=always \
|
|
--color=always "$1" 2>/dev/null || cat) | head -n $lines &
|
|
fi
|
|
}
|
|
|
|
if [ "$PREVIEW_MODE" ] ; then
|
|
if [ ! -r "$NNN_FIFO" ] ; then
|
|
echo "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')" >&2
|
|
read -r
|
|
exit 1
|
|
fi
|
|
|
|
preview_file "$1"
|
|
|
|
# use cat instead of 'exec <' to avoid issues with dash shell
|
|
# shellcheck disable=SC2002
|
|
cat "$NNN_FIFO" |\
|
|
while read -r selection ; do
|
|
preview_file "$selection"
|
|
done
|
|
exit 0
|
|
fi
|
|
|
|
kitty @ launch --no-response --title "nnn preview" --keep-focus \
|
|
--cwd="$PWD" --env "NNN_FIFO=$NNN_FIFO" --env "PREVIEW_MODE=1" \
|
|
"$0" "$1" > /dev/null
|