sistema_progs

Programas para customizar o meu entorno de traballo nos meus equipos persoais
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imgview (4021B)


      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://codeberg.org/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" = "viu" ] || [ "$1" = "catimg" ]; then
     35         [ -d "$target" ] && exit_prompt "$1 can only display a single image"
     36         mime="$(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/*) [ "$1" != "sxiv" ] &&
     49                     ffmpeg -i "$file" "$NNN_PREVIEWDIR$file.jpg" -y >/dev/null 2>&1 ;;
     50                 video/*) [ "$1" != "ucollage" ] &&
     51                     ffmpegthumbnailer -i "$file" -o "$NNN_PREVIEWDIR$file.jpg" 2> /dev/null ;;
     52             esac
     53         fi
     54     done
     55     for file in "$NNN_PREVIEWDIR$dir"/*; do
     56         filename="$(basename "$file" .jpg)"
     57         [ ! -e "$dir/$filename" ] && rm "$file" 2>/dev/null
     58     done
     59 }
     60 
     61 listimages() {
     62     find -L "$dir" "$NNN_PREVIEWDIR$dir" -maxdepth 1 -type f -print0 2>/dev/null | sort -z
     63 }
     64 
     65 view_files() {
     66     [ -f "$target" ] && count="-n $(listimages | grep -a -m 1 -ZznF "$target" | cut -d: -f1)"
     67     case "$1" in
     68         nsxiv) listimages | xargs -0 nsxiv -a "${count:--t}" -- ;;
     69         sxiv) listimages | xargs -0 sxiv -a "${count:--t}" -- ;;
     70         imv*) listimages | xargs -0 "$1" "${count:-}" -- ;;
     71     esac
     72 }
     73 
     74 target="$(readlink -f "$1")"
     75 [ -d "$target" ] && dir="$target" || dir="${target%/*}"
     76 if uname | grep -q "Darwin"; then
     77     [ -f "$1" ] && open "$1" >/dev/null 2>&1 &
     78 elif type lsix >/dev/null 2>&1; then
     79     if [ -d "$target" ]; then
     80         cd "$target" || exit_prompt
     81     fi
     82     make_thumbs lsix
     83     clear
     84     lsix
     85     cd "$NNN_PREVIEWDIR$dir" && lsix
     86     exit_prompt
     87 elif type ucollage >/dev/null 2>&1; then
     88     type ffmpeg >/dev/null 2>&1 && make_thumbs ucollage
     89     UCOLLAGE_EXPAND_DIRS=1 ucollage "$dir" "$NNN_PREVIEWDIR$dir" || exit_prompt
     90 elif type sxiv >/dev/null 2>&1; then
     91     type ffmpegthumbnailer >/dev/null 2>&1 && make_thumbs sxiv
     92     view_files sxiv >/dev/null 2>&1 &
     93 elif type nsxiv >/dev/null 2>&1; then
     94     type ffmpegthumbnailer >/dev/null 2>&1 && make_thumbs sxiv
     95     view_files nsxiv >/dev/null 2>&1 &
     96 elif type imv >/dev/null 2>&1; then
     97     make_thumbs imv
     98     view_files imv >/dev/null 2>&1 &
     99 elif type imvr >/dev/null 2>&1; then
    100     make_thumbs imv
    101     view_files imvr >/dev/null 2>&1 &
    102 elif type viu >/dev/null 2>&1; then
    103     clear
    104     make_thumbs viu
    105     viu -n "$ret"
    106     exit_prompt
    107 elif type catimg >/dev/null 2>&1; then
    108     make_thumbs catimg
    109     catimg "$ret"
    110     exit_prompt
    111 else
    112     exit_prompt "Please install sxiv/nsxiv/imv/viu/catimg/lsix."
    113 fi