#!/bin/bash
# httpup-repgen - One way sync from an http server to a local directory
# Copyright 2003 (c) Johannes Winkelmann, jw@tks6.net


# The repo file is place on the server. httpsync downloads it, makes the
# update and afterwards moves it to the REPOCURRENTFILE which keeps track
# of the files which have been checked out. The REPOCURRENTFILE contains
# only file names
REPOFILE=REPO
REPOCURRENTFILE=REPO.CURRENT

VERSION=0.5

function info(){
    echo $*
}
function debug() {
    return # echo $*
}

function printUsage() {
    echo "httpup-repgen $VERSION"
    echo "  Copyright (c) 2003 Johannes Winkelmann"
    echo ""
    echo "Usage:"
    echo "  httpup-repgen [directory]"
    exit -1
}

function generateRepoFile() {
    dir="."
    if [ ! "$1" = "" ]; then
	dir=$1
    fi
    if [ ! -d $dir ]; then
	echo "Can't generate repository for '$dir': No such directory"
	exit -2
    fi
    echo "Generating repository for directory '$dir'"

    OLDPWD=`pwd`
    cd $dir
    rm -f $REPOFILE || exit -3
    touch $REPOFILE
    if [ ! "$HS_IGNORE" = "" ]; then
	ignore=$HS_IGNORE
	ignore="-and $ignore"
	debug "$ignore"
    fi
    for f in `find . -not -name \. $ignore`; do
	f=`echo $f|sed -e 's/^\.\///'`
	if [ "$f" == "$REPOFILE" ] || [ "$f" = "$REPOCURRENTFILE" ]; then
	    continue
	elif [ -d $f ]; then
	    echo "d:$f" >> $REPOFILE
	else
 	    md5=`md5sum $f|awk '{print $1}'`
	    echo "f:$md5:$f" >> $REPOFILE
	fi
    done
    
    cd $OLDPWD
}

if [ "$1" = "--help" ]; then
    printUsage
else
    generateRepoFile $1
fi