contrib/dockerrpm

obsolete: properly drop 'date' from metadata

Mistakes were made while resolving rebase conflicts in 4bc96685a40c. This led to
'date' being preserved in metadata when reading markers from a binary stream.

As a result, some known markers were seen as "new" when pulling. I noticed it
because a no-op pulls from main added about 600 duplicated markers to my
obsstore (for each pull).

I do not believe we need to perform any specific action to actively
de-duplicates existing obsstore. After this fix, duplicated markers will no be
propagated and the few affected repositories can probably deal with duplication (or
people can repull the obsstore from a clone).

As a side effect, we decode metadata only once, reducing the impact of the hack
in fm0 to store extra important data (parents and date).

#!/bin/bash

BUILDDIR=$(dirname $0)
ROOTDIR=$(cd $BUILDDIR/..; pwd)

if which docker.io >> /dev/null ; then
  DOCKER=docker.io
elif which docker >> /dev/null ; then
  DOCKER=docker
fi

$DOCKER build --tag "hg-dockerrpm-$1" - < $BUILDDIR/docker/$1
$DOCKER run --rm -v $ROOTDIR:/hg "hg-dockerrpm-$1" bash -c \
    "cp -a hg hg-build; cd hg-build; make clean local $1; cp packages/$1/* /hg/packages/$1/"