#!/bin/sh
# $Id: sxxu,v 1.5 2010/04/20 17:25:38 andrew Exp $

# Copyright (c) 2010 Andrew Fresh <andrew@afresh1.com>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# based on siteXXtools/generate 
# Copyright (c) 2006 Alex Holst <a@mongers.org>

OSREV=$(uname -r| sed 's/\.//g')
SRCDIR=`pwd`
COMMONDIR=common
WRKDIR=`mktemp -d`
RELEASEDIR=/tmp

function copy_special {
    local _src="$1"
    local _dst="$2"

    if [ ! -d "$_src" ]; then
        echo "$_src does not exist!"
        return
    fi
    
    cd "$_src"
    find . \( \
        -path './siteXX' \
        -o -name 'CVS' \
        -o -name '.git' \
        -o -name '.svn' \
        \) -prune -o -print \
    | {
        local _file
        while read _file ; do
            if [ -d "$_file" ]; then
                mkdir -p "${_dst}/${_file}"
            else
                cp "$_file" "${_dst}/${_file}"
            fi
        done
    }

    cd ${OLDPWD}
}

function populate_from {
    local _src="$1"

    if [ X"${_src}" == X"" ]; then
        echo "populate_from <dir>"
        return
    fi
    if [ ! -d "${SRCDIR}/${_src}" ]; then
        return
    fi

    echo -n " $_src"

    copy_special "${SRCDIR}/${_src}" "${WRKINST}"

    if [ -d "${SRCDIR}/${_src}/siteXX" ]; then
        copy_special "${SRCDIR}/${_src}/siteXX" "${WRKINST}/var/siteXX/${_src}"

        if [ -e "${SRCDIR}/${_src}/siteXX/roles" ]; then
            local _role
            while read _role; do
                populate_from $_role
            done < "${SRCDIR}/${_src}/siteXX/roles"
        fi
    fi
}

cd ${SRCDIR}

set -A machines "$@"
if [ ${#machines[@]} -eq 0 ]; then
    local _i=0
    local _d
    for _d in *; do
        [ ! -d "$_d" ] && continue
        [ "${_d#role-}" != "$_d" ] && continue
		machines[$_i]="${_d}"
        _i=$((_i+1))
	done
fi

local _i=0
while [ $_i -lt ${#machines[@]} ]; do
    machine=`basename "${machines[$_i]}"`
    _i=$(( $_i+1 ))

    if [ ! -d "${machine}" ]; then
        echo ${machine} does not exist
        continue
    fi

	local _site=site${OSREV}
	if [ X"${machine}" != X"${COMMONDIR}" ]; then
        _site="${_site}-${machine}"
    fi

    echo -n populating:

    WRKINST="${WRKDIR}/${_site}"

    populate_from "${machine}"

    if [ X"${machine}" != X"${COMMONDIR}" \
        -a -d "${SRCDIR}/${COMMONDIR}" ]; then
        populate_from $COMMONDIR
    fi

    local _tgz="${RELEASEDIR}/${_site}.tgz"
    echo -n "\n  creating $_tgz"
	tar -cz -C "${WRKINST}" -f "$_tgz" .
    echo ' . . . done'
done

rm -rf $WRKDIR