#!/bin/sh
#-
# Copyright (c) 2002-2006 FreeBSD GNOME Team <freebsd-gnome@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $MCom: portstools/matemerge.sh.in,v 1.64 2007/10/19 04:03:09 mezz Exp $
#

# The path to the mate-ports ports without the trailing
# module name (i.e. without the trailing /ports). For
# example, add "/path/to" and the git will create a new
# "mate-ports" directory in /path/to/mate-ports.
SRCDIR=""

# The path to the official ports collection.
DESTDIR="/usr/ports"

# If you want verbose output.
VERBOSE="no"

# You do not have to change anything beyond this line.

PKGVERSION_CMD="/usr/sbin/pkg_version"
PKGVERSION_ARGS="-l \<"
GIT_CMD="/usr/local/bin/git"

pkgversion="no"
updating="no"
unmerge="no"
# End list of overrideable variables

SCRIPTNAME=`basename $0`

RMPORTS="MATERMPORTS"
GITURL="https://github.com/jlmess77/mate-ports.git"
GITDIR="mate-ports"


generate_unmerge_file() {
    # Record a list of merged ports for later unmerging.
    echo "# This file is generated by matemerge for the purposes of backing" > ${DESTDIR}/MATE_UNMM-${GITDIR}.txt
    echo "# out or unmerging all changes.  DO NOT MODIFY THIS FILE." >> ${DESTDIR}/MATE_UNMM-${GITDIR}.txt
    echo "# See http://www.marcuscom.com/matemerge.8.html for more details." >> ${DESTDIR}/MATE_UNMM-${GITDIR}.txt
}

run_unmerge() {
    foundone=0
    unfiles="MATE_UNMM-${GITDIR}.txt"

    if [ -z "${unfiles}" ]; then
	unfiles=`cd ${DESTDIR} && /bin/ls -1 MATE_UNMM-*.txt 2> /dev/null`
    fi

    unfiles="${unfiles} MATE_UNMM.txt" # For backwards compat

    for unfile in ${unfiles} ; do
	if [ ! -f ${DESTDIR}/${unfile} ]; then
	    if [ ${unfile} != "MATE_UNMM.txt" ]; then
		echo "${DESTDIR}/${unfile} does not exist.  Have you run a successful matemerge for this mate-ports yet?" | /usr/bin/fmt 75 79
	    fi
	else
	    echo "===> Unmerging previously merged ports from ${DESTDIR} using ${unfile}"
	    cd ${DESTDIR}
	    for port in `/usr/bin/sed -e 's|^#.*$||g' ${unfile}` ; do
		if [ "${VERBOSE}" = "yes" ]; then
		    echo "Removing port directory for: ${port}"
		fi
		/bin/rm -rf ${port}
	    done

	    /bin/rm -f ${unfile}
	    foundone=1
	fi
    done

    if [ -f ${DESTDIR}/MATE-UPDATING ]; then
        /bin/rm -f ${DESTDIR}/MATE-UPDATING
    fi

    if [ ${foundone} = 0 ]; then
	return 1
    fi

    return 0
}

while getopts "abilptUuvxc:d:Ss:m:" arg; do
    case "${arg}" in
	v)
		VERBOSE="yes"
		;;
	u)
		updating="yes"
		;;
	l)
		pkgversion="yes"
		;;
	a)
		updating="yes"
		pkgversion="yes"
		;;
	U)
		unmerge="yes"
		;;
	*)
		echo "usage: ${SCRIPTNAME} [-u] [-v] [-l] [-a] [-U]"
		exit 1
    esac
done

if [ ${unmerge} = "yes" ]; then
    run_unmerge
    if [ $? != 0 ]; then
	exit 0
    fi

    echo "===> Unmerge done."
    echo "Please update your ports tree before doing anything else ports-related." | /usr/bin/fmt 75 79
    exit 0
fi

if [ -z "${SRCDIR}" ]; then
    echo "You did not specify a SRCDIR; aborting..."
    exit 1
fi

SRCDIR=`/bin/realpath ${SRCDIR}`
DESTDIR=`/bin/realpath ${DESTDIR}`

# This function does, well, everything. It takes the module name as an argument.
run_matemerge() {
if [ ${SRCDIR} = ${DESTDIR} -o "${SRCDIR}/${GITDIR}" = ${DESTDIR} ]; then
    printf "Your SRCDIR is set to the same path as your DESTDIR.\nPlease set it to a path where we can store the mate-ports ports.\n\n"
    exit 1
fi

first_time=0

# If the SRCDIR doesn't exist, we need to download the repo.  Currently, we
# can do this via CVS or from a tarball generated periodically.
if [ ! -d ${SRCDIR} -o ! -d ${SRCDIR}/${GITDIR} ]; then
    first_time=1
        printf "First we have to check out the ${GITDIR} from\nhttps://github.com/jlmess77/mate-ports.git\n\n"
        echo "===> Checking out the ${GITDIR}."
        mkdir -p ${SRCDIR}
        cd ${SRCDIR}
        ${GIT_CMD} clone ${GITURL}
	if [ $? != 0 ]; then
	    printf "Failed to check out the mate-ports from GitHub.\n\n"
	    exit 1
	fi
        echo "===> Checkout done."
fi

# Update the mate-ports repo if so requested. Don't update if we just checked
# out (or downloaded) the repo for this first time.
if [ ${updating} = "yes" -a ${first_time} = 0 ]; then
    echo "===> Updating the mate-ports ports tree"
        cd "${SRCDIR}/${GITDIR}"
        ${GIT_CMD} pull
	if [ $? != 0 ]; then
	    printf "Failed to update the mate-ports ports tree.\n\n"
	    exit 1
	fi
    echo "===> Updating done."
fi

# Handle ports that may have been moved or deleted in the mate-ports repo.
if [ -f "${SRCDIR}/${GITDIR}/${RMPORTS}" ]; then
    echo "===> Removing obsolete ports from main tree"
    for i in `/bin/cat ${SRCDIR}/${GITDIR}/${RMPORTS} | cut -d '|' -f1`; do
	if [ "${VERBOSE}" = "yes" ]; then
	    echo " Removing obsolete port ${i}"
	fi
	/bin/rm -rf ${DESTDIR}/${i}
    done
    if [ "${VERBOSE}" = "yes" ]; then
	echo "Adding removed ports to MOVED"
    fi
    date=`/bin/date "+%Y-%m-%d"`
    /usr/bin/sed -e "s|%%DATE%%|${date}|g" ${SRCDIR}/${GITDIR}/${RMPORTS} \
    	>> ${DESTDIR}/MOVED
    echo "===> done."
fi

if [ -f ${SRCDIR}/${GITDIR}/MATE-UPDATING ]; then
    cp ${SRCDIR}/${GITDIR}/MATE-UPDATING ${DESTDIR}/
fi

echo "===> Merging files into the ports directory"
echo "${SRCDIR}/${GITDIR} --> ${DESTDIR}"

if [ -d ${SRCDIR}/${GITDIR}/Mk ]; then
    if [ "${VERBOSE}" = "yes" ]; then
	echo "Merging Mk files"
    fi
    if [ ! -d ${DESTDIR}/Mk ]; then
	if [ "${VERBOSE}" = "yes" ]; then
	    echo "Creating nonexistent destination category directory: Mk"
	fi
	mkdir -p ${DESTDIR}/Mk
    fi
    for mk in `ls -1 ${SRCDIR}/${GITDIR}/Mk/*.mk`; do
	cp ${mk} ${DESTDIR}/Mk
	mk_unmm=`echo ${mk} | sed -e "s|${SRCDIR}/${GITDIR}/||g"`
	echo "${mk_unmm}" >> ${DESTDIR}/MATE_UNMM-${GITDIR}.txt
    done
fi


for category in `ls -1 ${SRCDIR}/${GITDIR}`; do
    if [ ${category} = ".git" ]; then
	continue
    fi
    for port in `ls -1 ${SRCDIR}/${GITDIR}/${category}`; do
	if [ ${port} = ".git" ]; then
	    continue
	fi
	if [ ! -f ${SRCDIR}/${GITDIR}/${category}/${port}/Makefile ]; then
	    continue
	fi
	if [ ! -d ${DESTDIR}/${category} ]; then
	    if [ "${VERBOSE}" = "yes" ]; then
		echo "Creating nonexistent destination category directory: ${category}"
            fi
	    mkdir -p ${DESTDIR}/${category}
	fi
	if [ -d ${DESTDIR}/${category}/${port} ]; then
	    if [ "${VERBOSE}" = "yes" ]; then
		echo "Removing old directory for: ${category}/${port}"
	    fi
	    rm -rf ${DESTDIR}/${category}/${port}/work
	    find ${DESTDIR}/${category}/${port} \! -path "*/.git/*" -type f | \
	    	xargs rm -f
	fi

	echo "${category}/${port}" >> ${DESTDIR}/MATE_UNMM-${GITDIR}.txt

	cd ${SRCDIR}/${GITDIR}/${category}
	tar --exclude "*/.git*" -cf - ${port} | \
		tar -xf - -C ${DESTDIR}/${category}
    done
done
}	# end of run_matemerge()

if [ ${unmerge} = "yes" ]; then
    echo "===> Unmerge plus ports update done."
    echo "Your ports tree is now free of mate-ports ports." | /usr/bin/fmt 75 79
    exit 0
fi

#################
#
# Actually perform the merge
#
generate_unmerge_file
run_matemerge

echo "===> Merging done."
echo ""

if [ "${pkgversion}" = "yes" ]; then
    echo "===> Listing outdated ports..."
    ${PKGVERSION_CMD} ${PKGVERSION_ARGS}
    echo "===> Listing done."
fi

echo ""

echo "You can now run \"portupgrade -a\" or \"portmaster -a\" to upgrade your ports tree. Be sure to check in ${DESTDIR}/MATE-UPDATING first before you run portupgrade or portmaster." | /usr/bin/fmt 75 79