#!/bin/sh

# If using normal root, avoid changing anything.
if [ -z "$RPM_BUILD_ROOT" -o "$RPM_BUILD_ROOT" = "/" ]; then
	exit 0
fi

LC_ALL=
LANG=
LC_TIME=POSIX

cd "$RPM_BUILD_ROOT"

# Compress man pages
COMPRESS=${COMPRESS:-gzip -9 -n}
COMPRESS_EXT=${COMPRESS_EXT:-.gz}

check_for_hard_link()
{
    dir=$1
    b=$2

    inode=`ls -i $b | awk '{ print $1 }'`
    others=`find $dir -type f -inum $inode`
    for afile in $others ; do
	[ "$afile" != "$b" ] && rm -f "$afile"
    done

    case $b in
	*.Z|*.gz)     gunzip  $b ;;
	*.bz2)        bunzip2 $b ;;
	*.xz|*.lzma)  unxz    $b ;;
    esac

    type=${b##*.}
    for afile in $others ; do
	[ "${afile%.$type}" != "${b%.$type}" ] && ln ${b%.$type} ${afile%.$type}
    done
}

for d in ./usr/man/man* ./usr/man/*/man* ./usr/info \
	./usr/share/man/man* ./usr/share/man/*/man* ./usr/share/info \
	./usr/kerberos/man ./usr/X11R6/man/man* ./usr/lib/perl5/man/man* \
	./usr/share/doc/*/man/man* ./usr/lib/*/man/man* ./usr/share/fish/man/man*
do
    [ -d $d ] || continue
    find $d -type f ! -name dir | while read f
    do
        [ -f "$f" ] || continue
	case $(file "$f") in *"image data"*) continue;; esac

	case "$f" in
	 *.gz|*.Z)    gunzip  "$f" || check_for_hard_link $d "$f"; b=`echo $f | sed -e 's/\.\(gz\|Z\)$//'`;;
	 *.bz2)       bunzip2 "$f" || check_for_hard_link $d "$f"; b=`echo $f | sed -e 's/\.bz2$//'`;;
	 *.xz|*.lzma) unxz    "$f" || check_for_hard_link $d "$f"; b=`echo $f | sed -e 's/\.\(xz\|lzma\)$//'`;;
	 *) b="$f";;
	esac

	$COMPRESS "$b" </dev/null 2>/dev/null || {
	    inode=`ls -i $b | awk '{ print $1 }'`
	    others=`find $d -type f -inum $inode`
	    if [ -n "$others" ]; then
		for afile in $others ; do
		    [ "$afile" != "$b" ] && rm -f "$afile"
		done
		$COMPRESS -f "$b"
		for afile in $others ; do
		    [ "$afile" != "$b" ] && ln "$b$COMPRESS_EXT" "$afile$COMPRESS_EXT"
		done
	    else
		$COMPRESS -f "$b"
	    fi
	}
    done

    find $d -type l | while read f
    do
	l="`ls -l "$f" | sed -e 's/.* -> //' -e 's/\.\(gz\|Z\|bz2\|xz\|lzma\)$//'`"
	rm -f "$f"
	b="`echo "$f" | sed -e 's/\.\(gz\|Z\|bz2\|xz\|lzma\)$//'`"
	ln -sf "$l$COMPRESS_EXT" "$b$COMPRESS_EXT"
    done
done
