useful_scripts/lf_preview.sh

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#!/usr/bin/env bash
MIME=$(mimetype --all --brief "$1")
#echo "$MIME"
case "$MIME" in
# .pdf
*application/pdf*)
pdftotext "$1" -
;;
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# .jpeg, png etc.
*image/*)
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chafa -f sixel -s "$2x$3" "$1" --polite on
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;;
# .7z
*application/x-7z-compressed*)
7z l "$1"
;;
# .tar .tar.Z
*application/x-tar*)
tar -tvf "$1"
;;
# .tar.*
*application/x-compressed-tar*|*application/x-*-compressed-tar*)
tar -tvf "$1"
;;
# .rar
*application/vnd.rar*)
unrar l "$1"
;;
# .zip
*application/zip*)
unzip -l "$1"
;;
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*text/markdown*)
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pandoc $1 > /tmp/lf_preview.html && cutycapt --url=file:///tmp/lf_preview.html --out=/tmp/lf_preview.png && chafa -s "$2x$3" -f sixel /tmp/lf_preview.png --polite on
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;;
# any plain text file that doesn't have a specific handler
*text/plain*)
# return false to always repaint, in case terminal size changes
batcat --force-colorization --paging=never --style=changes,numbers \
--terminal-width $(($2 - 3)) "$1" && false
;;
*)
echo "unknown format"
;;
esac