contrib/dockerrpm

bundle: when verbose, show what takes up the space in the generated bundle

This is kind of similar to the debugbundle command but gives summarized actual
uncompressed number of bytes when creating the bundle. The numbers are as
usable as the bundle format is efficient. Hopefully bundle2 will make it a
better indicator of actual entropy.

This is useful when accepting pull requests to assess whether the repo size
increase seems reasonable for the diff before pushing stuff upstream, It has
helped me catching large files that should have been committed as largefiles
but was committed as regular files in intermediate changesets.

This output doesn't combine well with debug output so we only enable it when
verbose without debug.

#!/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"