#!/usr/bin/sh
#
# To use this filter with less, define LESSOPEN:
# export LESSOPEN="|/usr/bin/lesspipe.sh %s"
#
# The script should return zero if the output was valid and non-zero
# otherwise, so less could detect even a valid empty output
# (for example while uncompressing gzipped empty file).
# For backward-compatibility, this is not required by default. To turn
# this functionality there should be another vertical bar (|) straight
# after the first one in the LESSOPEN environment variable:
# export LESSOPEN="||/usr/bin/lesspipe.sh %s"
if [ ! -e "$1" ] ; then
exit 1
fi
if [ -d "$1" ] ; then
ls -alF -- "$1"
exit $?
fi
exec 2>/dev/null
# Allow for user defined filters
if [ -x ~/.lessfilter ]; then
~/.lessfilter "$1"
if [ $? -eq 0 ]; then
exit 0
fi
fi
manfilter ()
{
if test -x /usr/bin/man ; then
# See rhbz#1241543 for more info. Well, actually we firstly
# used 'man -l', then we switched to groff, and then we again
# switched back to 'man -l'.
/usr/bin/man -P /usr/bin/cat -l "$1"
elif test -x /usr/bin/groff; then
# This is from pre-rhbz#1241543-time.
groff -Tascii -mandoc "$1" | cat -s
else
echo "WARNING:"
echo "WARNING: to better show manual pages, install 'man-db' package"
echo "WARNING:"
cat "$1"
fi
}
export MAN_KEEP_FORMATTING=1
case "$1" in
*.[1-9n].bz2|*.[1-9]x.bz2|*.man.bz2|*.[1-9n].[glx]z|*.[1-9]x.[glx]z|*.man.[glx]z|*.[1-9n].lzma|*.[1-9]x.lzma|*.man.lzma|*.[1-9n].zst|*.[1-9]x.zst|*.man.zst|*.[1-9n].br|*.[1-9]x.br|*.man.br)
case "$1" in
*.gz) DECOMPRESSOR="gzip -dc" ;;
*.bz2) DECOMPRESSOR="bzip2 -dc" ;;
*.lz) DECOMPRESSOR="lzip -dc" ;;
*.zst) DECOMPRESSOR="zstd -dcq" ;;
*.br) DECOMPRESSOR="brotli -dc" ;;
*.xz|*.lzma) DECOMPRESSOR="xz -dc" ;;
esac
if [ -n "$DECOMPRESSOR" ] && $DECOMPRESSOR -- "$1" | file - | grep -q troff; then
$DECOMPRESSOR -- "$1" | manfilter -
exit $?
fi ;;&
*.[1-9n]|*.[1-9]x|*.man)
if file "$1" | grep -q troff; then
manfilter "$1"
exit $?
fi ;;&
*.tar) tar tvvf "$1"; exit $? ;;
*.tgz|*.tar.gz|*.tar.[zZ]) tar tzvvf "$1"; exit $? ;;
*.tar.xz) tar Jtvvf "$1"; exit $? ;;
*.xz|*.lzma) xz -dc -- "$1"; exit $? ;;
*.tar.lz) tar --lzip -tvvf "$1"; exit $? ;;
*.lz) lzip -dc -- "$1"; exit $? ;;
*.tar.zst) tar --zstd -tvvf "$1"; exit $? ;;
*.zst) zstd -dcq -- "$1"; exit $? ;;
*.tar.br) brotli -dc -- "$1" | tar tvvf -; exit $? ;;
*.br) brotli -dc -- "$1"; exit $? ;;
*.tar.bz2|*.tbz2) bzip2 -dc -- "$1" | tar tvvf -; exit $? ;;
*.[zZ]|*.gz) gzip -dc -- "$1"; exit $? ;;
*.bz2) bzip2 -dc -- "$1"; exit $? ;;
*.zip|*.jar|*.nbm) zipinfo -- "$1"; exit $? ;;
# --nomanifest -> rhbz#1450277
*.rpm) rpm -qpivl --changelog --nomanifest -- "$1"; exit $? ;;
*.cpi|*.cpio) cpio -itv < "$1"; exit $? ;;
*.gpg)
if [ -x /usr/bin/gpg2 ]; then
gpg2 -d "$1"
exit $?
elif [ -x /usr/bin/gpg ]; then
gpg -d "$1"
exit $?
else
echo "No GnuPG available."
echo "Install gnupg2 or gnupg to show encrypted files."
exit 1
fi ;;
*.gif|*.jpeg|*.jpg|*.pcd|*.png|*.tga|*.tiff|*.tif)
if [ -x /usr/bin/identify ]; then
identify "$1"
exit $?
elif [ -x /usr/bin/gm ]; then
gm identify "$1"
exit $?
else
echo "No identify available"
echo "Install ImageMagick or GraphicsMagick to browse images"
exit 1
fi ;;
*)
if [ -x /usr/bin/file ] && [ -x /usr/bin/iconv ] && [ -x /usr/bin/cut ]; then
case `file -b "$1"` in
*UTF-16*) conv='UTF-16' ;;
*UTF-32*) conv='UTF-32' ;;
esac
if [ -n "$conv" ]; then
env=`echo $LANG | cut -d. -f2`
if [ -n "$env" -a "$conv" != "$env" ]; then
iconv -f $conv -t $env "$1"
exit $?
fi
fi
fi
exit 1
esac
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