mirror of
https://github.com/jarun/nnn.git
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69 lines
1.7 KiB
Plaintext
69 lines
1.7 KiB
Plaintext
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#!/usr/bin/env sh
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# Description: Text based file previewer
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#
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# Note: This plugin needs a "NNN_FIFO" to work.
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#
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# Dependencies: tmux or xterm (or set $TERMINAL), file, tree
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#
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# How to use:
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# You need to set a NNN_FIFO path and set a key for the plugin,
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# then start `nnn`:
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#
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# $ NNN_FIFO=/tmp/nnn.fifo nnn
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#
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# Then in `nnn`, launch the `preview-tui` plugin.
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#
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# If you provide the same NNN_FIFO to all nnn instances, there will be a
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# single common preview window. I you provide different FIFO path, they
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# will be independent.
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#
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# Authors: Todd Yamakawa and Léo Villeveygoux
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TERMINAL="${TERMINAL:-xterm}"
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NUKE="${XDG_CONFIG_HOME:-$HOME/.config}/nnn/plugins/nuke"
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if [ ! -r "$NNN_FIFO" ] ; then
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echo "No FIFO available! (\$NNN_FIFO='$NNN_FIFO')" >&2
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exit 1
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fi
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if [ ! -x "$NUKE" ] ; then
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echo "Nuke not found!" >&2
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exit 1
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fi
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if [ "$PREVIEW_MODE" ] ; then
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exec < "$NNN_FIFO"
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while read -r selection ; do
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clear
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lines=$(($(tput lines)-1))
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cols=$(tput cols)
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mime="$(file -b --mime-type "$selection")"
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if [ "$mime" = "inode/directory" ] ; then
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# Print directory tree
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cd "$selection" && tree | head -n $lines | cut -c 1-"$cols"
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elif [ "${mime%%/*}" = "text" ] ; then
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# Print file head
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head -n $lines "$selection" | cut -c 1-"$cols"
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else
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# Binary file
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echo "-------- Binary file --------"
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file -b "$selection"
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fi
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done
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if [ -e "${TMUX%%,*}" ] ; then
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tmux kill-pane
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fi
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exit 0
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fi
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if [ -e "${TMUX%%,*}" ] ; then
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tmux split-window -e "NNN_FIFO=$NNN_FIFO" -e "PREVIEW_MODE=1" -dh "$0"
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else
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PREVIEW_MODE=1 GUI=0 $TERMINAL -e "$0" &
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fi
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