tests: fix ipv6 support in test_push_command.py This test runs the `svnserve` binary, which appears to resolve the hostname passed as an argument using gethostbyname(3), which can only return an IPv4 address. When run on a system that is configured to only have an IPv6 address, Mercurial will correctly resolve the hostname to an IPv6 address, but the SVN server will be listening on an incorrect IPv4 address, causing the test to fail. The workaround is to resolve the hostname using getaddrinfo(3) in the test harness and pass the resulting address to svnserve.

#!/bin/sh
mkdir temp || exit 1
cd temp
svnadmin create repo
svn co file://`pwd`/repo wc
pushd wc
mkdir -p project/trunk
svn add project
svn ci -m 'trunk'
cd project/trunk
echo a > a
mkdir narf
svn add a narf
svn ci -m 'file and empty dir'
popd
svnadmin dump repo > ../empty_dir_in_trunk_not_repo_root.svndump
echo 'dump in empty_dir_in_trunk_not_repo_root.svndump'
echo 'you can probably delete temp now'