#!/bin/sh -e
#
# Compresses files and makes sure that symlinks pointing to the 
# compressed files get fixed.

PATH=debian:$PATH:/usr/lib/debhelper
source dh_lib

for PACKAGE in $DH_DOPACKAGES; do
	TMP=`tmpdir $PACKAGE`
	EXT=`pkgext $PACKAGE`

	# Run the file name gatering commands from within the directory
	# structure that will be effected.
	olddir=`pwd`
	cd debian/$TMP

	if [ -f debian/${EXT}compress ]; then
		# The config file is a sh script that outputs the files to be compressed
		# (typically using find).
		files=`sh debian/${EXT}compress 2>/dev/null`
	else
		# By default fall back on what the policy manual says to compress.
		files=`
			find usr/info usr/man usr/X11*/man -type f 2>/dev/null ;
			find usr/doc -type f -size +4k \
				! -name "*.htm*" ! -name "*.gif" \
				! -name "copyright" 2>/dev/null
		`
	fi

	if [ "$files" ]; then
		# This is just a cosmetic fix.
		files=`echo $files | tr "\n" " "`	
	
		doit "gzip -9 $files" || true
	fi

	# Change back to old pwd.
	cd $olddir

	# Fix up symlinks that were pointing to the uncompressed files.
	for file in `find debian/$TMP -type l`; do
		DIRECTORY=`expr $file : "\(.*\)/[^/]*"`
		NAME=`expr $file : ".*/\([^/]*\)"`
		LINKVAL=`ls -l $DIRECTORY/$NAME | awk '{ print $11;}'`
		if [ ! -e $DIRECTORY/$LINKVAL -a -f $DIRECTORY/$LINKVAL.gz ]; then
			doit "rm $DIRECTORY/$NAME"
			doit "ln -s $LINKVAL.gz $DIRECTORY/$NAME.gz"
		fi
	done
done