contrib/dockerrpm

largefiles: update standins only at the 1st commit of "hg rebase --continue"

Before this patch, "hg rebase --continue" may record incorrect
standins, because largefiles extension always avoid updating standins
while rebasing, even though largefiles in the working directory may be
modified manually at the 1st commit of "hg rebase --continue".

But, on the other hand, updating standins should be avoided at
subsequent commits for efficiency reason.

To update standins only at the 1st commit of "hg rebase --continue",
this patch introduces state-full callable object
"automatedcommithook", which updates standins by
"lfutil.updatestandinsbymatch()" only at the 1st commit of resuming.

Even after this patch, "repo._isrebasing = True" is still needed to
avoid some status report while updating largefiles in
"lfcommands.updatelfiles()".

This is reason why this patch omits not "repo._isrebasing = True" in
"overriderebase" but examination of "getattr(repo, "_isrebasing",
False)" in "updatestandinsbymatch".

#!/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]
name=Mercurial packages for $PLATFORM
# baseurl=file://$RPMBUILDDIR/
baseurl=http://hg.example.com/build/$PLATFORM/
skip_if_unavailable=True
gpgcheck=0
enabled=1
EOF

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