#!/bin/bash -e

#

# Build a Mercurial RPM from the current repo, mainly for Fedora/CentOS/RHEL

. $(dirname $0)/packagelib.sh

BUILD=1

RPMBUILDDIR="$PWD/rpmbuild"

PYTHONEXE=python3

DOCUTILSPACKAGE=python3-docutils

while [ "$1" ]; do

    case "$1" in

    --prepare )

        shift

        BUILD=

        ;;

    --python)

        shift

        PYTHONEXE=$1

        shift

        ;;

    --withpython | --with-python)

        shift

        PYTHONVER=2.7.16

        PYTHONMD5=f1a2ace631068444831d01485466ece0

        PYTHONEXE=python

        ;;

    --docutilspackage)

        shift

        DOCUTILSPACKAGE="$1"

        shift

        ;;

    --rpmbuilddir )

        shift

        RPMBUILDDIR="$1"

        shift

        ;;

    * )

        echo "Invalid parameter $1!" 1>&2

        exit 1

        ;;

    esac

done

cd "`dirname $0`/../.."

specfile=$PWD/contrib/packaging/mercurial.spec

if [ ! -f $specfile ]; then

    echo "Cannot find $specfile!" 1>&2

    exit 1

fi

if [ ! -d .hg ]; then

    echo 'You are not inside a Mercurial repository!' 1>&2

    exit 1

fi

gethgversion $PYTHONEXE

if [ -z "$type" ] ; then

    release=1

else

    release=0.9_$type

fi

if [ -n "$distance" ] ; then

    release=$release+${distance}_${node}

fi

if [ "$PYTHONVER" ]; then

    release=$release+$PYTHONVER

    RPMPYTHONVER=$PYTHONVER

else

    RPMPYTHONVER=%{nil}

fi

mkdir -p $RPMBUILDDIR/{SOURCES,BUILD,SRPMS,RPMS}

$PYTHONEXE $HG archive -t tgz $RPMBUILDDIR/SOURCES/mercurial-$version-$release.tar.gz

if [ "$PYTHONVER" ]; then

(

    mkdir -p build

    cd build

    PYTHON_SRCFILE=Python-$PYTHONVER.tgz

    [ -f $PYTHON_SRCFILE ] || curl -Lo $PYTHON_SRCFILE http://www.python.org/ftp/python/$PYTHONVER/$PYTHON_SRCFILE

    if [ "$PYTHONMD5" ]; then

        echo "$PYTHONMD5 $PYTHON_SRCFILE" | md5sum -w -c

    fi

    ln -f $PYTHON_SRCFILE $RPMBUILDDIR/SOURCES/$PYTHON_SRCFILE

    DOCUTILSVER=`sed -ne "s/^%global docutilsname docutils-//p" $specfile`

    DOCUTILS_SRCFILE=docutils-$DOCUTILSVER.tar.gz

    [ -f $DOCUTILS_SRCFILE ] || curl -Lo $DOCUTILS_SRCFILE http://downloads.sourceforge.net/project/docutils/docutils/$DOCUTILSVER/$DOCUTILS_SRCFILE

    DOCUTILSMD5=`sed -ne "s/^%global docutilsmd5 //p" $specfile`

    if [ "$DOCUTILSMD5" ]; then

        echo "$DOCUTILSMD5 $DOCUTILS_SRCFILE" | md5sum -w -c

    fi

    ln -f $DOCUTILS_SRCFILE $RPMBUILDDIR/SOURCES/$DOCUTILS_SRCFILE

)

fi

mkdir -p $RPMBUILDDIR/SPECS

rpmspec=$RPMBUILDDIR/SPECS/mercurial.spec

sed -e "s,^Version:.*,Version: $version," \

    -e "s,^Release:.*,Release: $release," \

    -e "s/^%global pythonexe .*/%global pythonexe $PYTHONEXE/" \

    $specfile > $rpmspec

echo >> $rpmspec

echo "%changelog" >> $rpmspec

if echo $version | grep '+' > /dev/null 2>&1; then

    latesttag="`echo $version | sed -e 's/+.*//'`"

    $PYTHONEXE $HG log -r .:"$latesttag" -fM \

        --template '{date|hgdate}\t{author}\t{desc|firstline}\n' | python -c '

import sys, time

def datestr(date, format):

    return time.strftime(format, time.gmtime(float(date[0]) - date[1]))

changelog = []

for l in sys.stdin.readlines():

    tok = l.split("\t")

    hgdate = tuple(int(v) for v in tok[0].split())

    changelog.append((datestr(hgdate, "%F"), tok[1], hgdate, tok[2]))

prevtitle = ""

for l in sorted(changelog, reverse=True):

    title = "* %s %s" % (datestr(l[2], "%a %b %d %Y"), l[1])

    if prevtitle != title:

        prevtitle = title

        print

        print(title)

    print("- %s" % l[3].strip())

' >> $rpmspec

else

    $PYTHONEXE $HG log \

         --template '{date|hgdate}\t{author}\t{desc|firstline}\n' \

         .hgtags | $PYTHONEXE -c '

import sys, time

def datestr(date, format):

    return time.strftime(format, time.gmtime(float(date[0]) - date[1]))

for l in sys.stdin.readlines():

    tok = l.split("\t")

    hgdate = tuple(int(v) for v in tok[0].split())

    print("* %s %s\n- %s" % (datestr(hgdate, "%a %b %d %Y"), tok[1], tok[2]))

' >> $rpmspec

fi

sed -i \

    -e "s/^%define withpython.*$/%define withpython $RPMPYTHONVER/" \

    $rpmspec

sed -i \

    -e "s/^%global pythondocutils.*$/%global pythondocutils $DOCUTILSPACKAGE/" \

    $rpmspec

if [ "$BUILD" ]; then

    rpmbuild --define "_topdir $RPMBUILDDIR" -ba $rpmspec --clean

    if [ $? = 0 ]; then

        echo

        echo "Built packages for $version-$release:"

        find $RPMBUILDDIR/*RPMS/ -type f -newer $rpmspec

    fi

else

    echo "Prepared sources for $version-$release $rpmspec are in $RPMBUILDDIR/SOURCES/ - use like:"

    echo "rpmbuild --define '_topdir $RPMBUILDDIR' -ba $rpmspec --clean"

fi