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Member "nnn-4.4/plugins/imgview" (23 Nov 2021, 3929 Bytes) of package /linux/misc/nnn-v4.4.tar.gz:


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    1 #!/usr/bin/env sh
    2 
    3 # Description: Open hovered or current directory in image viewer.
    4 #              Generates media thumbnails with optional dependencies.
    5 #
    6 # Dependencies:
    7 #   - imv (https://github.com/eXeC64/imv) or,
    8 #   - sxiv (https://github.com/muennich/sxiv) or,
    9 #   - nsxiv (https://github.com/nsxiv/nsxiv) or,
   10 #   - ucollage (https://github.com/ckardaris/ucollage) or,
   11 #   - lsix (https://github.com/hackerb9/lsix), or
   12 #   - viu (https://github.com/atanunq/viu), or
   13 #   - catimg (https://github.com/posva/catimg), or
   14 #   - optional: ffmpeg for audio thumbnails (album art)
   15 #   - optional: ffmpegthumbnailer for video thumbnails
   16 #
   17 # Shell: POSIX compliant
   18 # Author: Arun Prakash Jana, Luuk van Baal
   19 #
   20 # Consider setting NNN_PREVIEWDIR to $XDG_CACHE_HOME/nnn/previews
   21 # if you want to keep media thumbnails on disk between reboots.
   22 NNN_PREVIEWDIR="${NNN_PREVIEWDIR:-${TMPDIR:-/tmp}/nnn/previews}"
   23 
   24 exit_prompt() {
   25     [ -n "$1" ] && printf "%s\n" "$1"
   26     printf "%s" "Press any key to exit..."
   27     cfg=$(stty -g); stty raw -echo; head -c 1; stty "$cfg"
   28     clear
   29     exit
   30 }
   31 
   32 make_thumbs() {
   33     mkdir -p "$NNN_PREVIEWDIR$dir" || return
   34     if [ "$1" -eq 3 ]; then
   35         [ -d "$target" ] && exit_prompt "$2 can only display a single image"
   36         mime="$(file -bL --mime-type -- "$target")"
   37         case "$mime" in
   38           audio/*) ffmpeg -i "$target" "$NNN_PREVIEWDIR$target.jpg" -y >/dev/null 2>&1
   39               ret="$NNN_PREVIEWDIR/$target.jpg" ;;
   40           video/*) ffmpegthumbnailer -i "$target" -o "$NNN_PREVIEWDIR$target.jpg" 2> /dev/null
   41               ret="$NNN_PREVIEWDIR/$target.jpg" ;;
   42           *) ret="$target" ;;
   43         esac
   44     fi
   45     for file in "$dir"/*; do
   46         if [ ! -f "$NNN_PREVIEWDIR$file.jpg" ]; then
   47             case "$(file -bL --mime-type -- "$file")" in
   48                 audio/*) [ "$1" -ne 0 ] && ffmpeg -i "$file" "$NNN_PREVIEWDIR$file.jpg" -y >/dev/null 2>&1 ;;
   49                 video/*) [ "$1" -ne 1 ] && ffmpegthumbnailer -i "$file" -o "$NNN_PREVIEWDIR$file.jpg" 2> /dev/null ;;
   50             esac
   51         fi
   52     done
   53     for file in "$NNN_PREVIEWDIR$dir"/*; do
   54         filename="$(basename "$file" .jpg)"
   55         [ ! -e "$dir/$filename" ] && rm "$file" 2>/dev/null
   56     done
   57 }
   58 
   59 listimages() {
   60     find -L "$dir" "$NNN_PREVIEWDIR$dir" -maxdepth 1 -type f -print0 2>/dev/null | sort -z
   61 }
   62 
   63 view_files() {
   64     [ -f "$target" ] && count="-n $(listimages | grep -a -m 1 -ZznF "$target" | cut -d: -f1)"
   65     case "$1" in
   66         nsxiv) listimages | xargs -0 nsxiv -a "${count:--t}" -- ;;
   67         sxiv) listimages | xargs -0 sxiv -a "${count:--t}" -- ;;
   68         imv*) listimages | xargs -0 "$1" "${count:-}" -- ;;
   69     esac
   70 }
   71 
   72 target="$(readlink -f "$1")"
   73 [ -d "$target" ] && dir="$target" || dir="${target%/*}"
   74 if uname | grep -q "Darwin"; then
   75     [ -f "$1" ] && open "$1" >/dev/null 2>&1 &
   76 elif type lsix >/dev/null 2>&1; then
   77     if [ -d "$target" ]; then
   78         cd "$target" || exit_prompt
   79     fi
   80     make_thumbs ""
   81     clear
   82     lsix
   83     cd "$NNN_PREVIEWDIR$dir" && lsix
   84     exit_prompt
   85 elif type ucollage >/dev/null 2>&1; then
   86     type ffmpeg >/dev/null 2>&1 && make_thumbs 1
   87     UCOLLAGE_EXPAND_DIRS=1 ucollage "$dir" "$NNN_PREVIEWDIR$dir" || exit_prompt
   88 elif type sxiv >/dev/null 2>&1; then
   89     type ffmpegthumbnailer >/dev/null 2>&1 && make_thumbs 0
   90     view_files sxiv >/dev/null 2>&1 &
   91 elif type nsxiv >/dev/null 2>&1; then
   92     type ffmpegthumbnailer >/dev/null 2>&1 && make_thumbs 0
   93     view_files nsxiv >/dev/null 2>&1 &
   94 elif type imv >/dev/null 2>&1; then
   95     make_thumbs ""
   96     view_files imv >/dev/null 2>&1 &
   97 elif type imvr >/dev/null 2>&1; then
   98     make_thumbs ""
   99     view_files imvr >/dev/null 2>&1 &
  100 elif type viu >/dev/null 2>&1; then
  101     clear
  102     make_thumbs 3 viu
  103     viu -n "$ret"
  104     exit_prompt
  105 elif type catimg >/dev/null 2>&1; then
  106     make_thumbs 3 catimg
  107     catimg "$ret"
  108     exit_prompt
  109 else
  110     exit_prompt "Please install sxiv/nsxiv/imv/viu/catimg/lsix."
  111 fi