dotfiles/home/default/.config/lf/scope

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2023-04-12 12:26:40 -04:00
#!/bin/sh
# File preview handler for lf.
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# requirements:
# - horriblename/lf (https://github.com/horriblename/lf)
# - chafa
# - gnome-kra-ora-thumbnailer
# - gnome-epub-thumbnailer
# - webp-pixbuf-loader
# - bat
# - mediainfo
# - ffmpegthumbnailer
# - poppler
# - atool
# - odt2txt
# - gpg
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set -C -f
IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"
# Note that the cache file name is a function of file information, meaning if
# an image appears in multiple places across the machine, it will not have to
# be regenerated once seen.
case "$(printf "%s\n" "$1" | awk '{print tolower($0)}')" in
*.kra|*.krz)
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && gnome-kra-thumbnailer -s 1024 "$1" "$CACHE.jpg"
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
exit 0
;;
*.ora)
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && gnome-openraster-thumbnailer -s 1024 "$1" "$CACHE.jpg"
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
exit 0
;;
*.cbz|*.cbr|*.cbt)
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && comicthumb "$1" "$CACHE.jpg" 768
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
exit 0
;;
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esac
case "$(file --dereference --brief --mime-type -- "$1")" in
image/gif|image/webp)
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && gdk-pixbuf-thumbnailer -s 1024 "$1" "$CACHE.jpg"
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
mediainfo "$1";;
image/*) chafa "$1" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
mediainfo "$1";;
text/html) lynx -width="$4" -display_charset=utf-8 -dump "$1" ;;
text/troff) man ./ "$1" | col -b ;;
text/* | */xml | application/json) bat -p --terminal-width "$(($4-2))" -f "$1" ;;
audio/* | application/octet-stream) mediainfo "$1" || exit 1 ;;
video/* )
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
chafa "$CACHE" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
mediainfo "$1"
;;
*/pdf)
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
;;
*/epub+zip|*/mobi*)
mediainfo "$1"
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
[ ! -f "$CACHE.jpg" ] && gnome-epub-thumbnailer "$1" "$CACHE.jpg"
chafa "$CACHE.jpg" -f sixel -s "$(($2-2))x$(($3-2))" | sed 's/#/\n#/g'
;;
application/*zip) atool --list -- "$1" ;;
*opendocument*) odt2txt "$1" ;;
application/pgp-encrypted) gpg -d -- "$1" ;;
esac
exit 0