#!/bin/bash -e

BUILDDIR=$(dirname $0)

ROOTDIR=$(cd $BUILDDIR/..; pwd)

if which docker.io >> /dev/null 2>&1 ; then

  DOCKER=docker.io

elif which docker >> /dev/null 2>&1 ; then

  DOCKER=docker

else

  echo "Error: docker must be installed"

  exit 1

fi

$DOCKER -h 2> /dev/null | grep -q Jansens && { echo "Error: $DOCKER is the Docking System Tray - install docker.io instead"; exit 1; }

$DOCKER version | grep -q "^Client version:" || { echo "Error: unexpected output from \"$DOCKER version\""; exit 1; }

$DOCKER version | grep -q "^Server version:" || { echo "Error: could not get docker server version - check it is running and your permissions"; exit 1; }

PLATFORM="$1"

[ "$PLATFORM" ] || { echo "Error: platform name must be specified"; exit 1; }

shift # extra params are passed to buildrpm

DFILE="$ROOTDIR/contrib/docker/$PLATFORM"

[ -f "$DFILE" ] || { echo "Error: docker file $DFILE not found"; exit 1; }

CONTAINER="hg-dockerrpm-$PLATFORM"

DBUILDUSER=build

(

cat $DFILE

echo RUN groupadd $DBUILDUSER -g `id -g`

echo RUN useradd $DBUILDUSER -u `id -u` -g $DBUILDUSER

) | $DOCKER build --tag $CONTAINER -

RPMBUILDDIR=$ROOTDIR/packages/$PLATFORM

contrib/buildrpm --rpmbuilddir $RPMBUILDDIR --prepare $*

DSHARED=/mnt/shared

$DOCKER run -u $DBUILDUSER --rm -v $RPMBUILDDIR:$DSHARED $CONTAINER \

    rpmbuild --define "_topdir $DSHARED" -ba $DSHARED/SPECS/mercurial.spec --clean

$DOCKER run -u $DBUILDUSER --rm -v $RPMBUILDDIR:$DSHARED $CONTAINER \

    createrepo $DSHARED

cat << EOF > $RPMBUILDDIR/mercurial.repo

# Place this file in /etc/yum.repos.d/mercurial.repo

[mercurial]

# baseurl=file://$RPMBUILDDIR/

skip_if_unavailable=True

gpgcheck=0

enabled=1

EOF

echo

echo "Build complete - results can be found in $RPMBUILDDIR"