Sbuild::ResolverBase: use copy: for dummy archive

We used to use file: URIs for sbuild's dummy archive, but recent
versions of apt put symlinks in /var/lib/apt/lists/ if we do that, which
means that those symlinks become broken as soon as we remove the dummy
archive.  sbuild itself is OK with this, but launchpad-buildd tries to
read /var/lib/apt/lists/*_Packages in order to do dep-wait analysis
after failures, and that fails if there are broken symlinks there.  It's
easy enough to avoid this problem by using copy: URIs instead, so let's
do that.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Sbuild/ResolverBase.pm b/lib/Sbuild/ResolverBase.pm
index c7b4ab7..810247c 100644
--- a/lib/Sbuild/ResolverBase.pm
+++ b/lib/Sbuild/ResolverBase.pm
@@ -1113,8 +1113,8 @@ EOF
 	# Older apt from squeeze will still require keys to be generated as it
 	# ignores the trusted=yes. Older apt ignoring this is also why we can add
 	# this unconditionally.
-        print $tmpfh 'deb [trusted=yes] file://' . $session->strip_chroot_path($dummy_archive_dir) . " ./\n";
-        print $tmpfh 'deb-src [trusted=yes] file://' . $session->strip_chroot_path($dummy_archive_dir) . " ./\n";
+        print $tmpfh 'deb [trusted=yes] copy://' . $session->strip_chroot_path($dummy_archive_dir) . " ./\n";
+        print $tmpfh 'deb-src [trusted=yes] copy://' . $session->strip_chroot_path($dummy_archive_dir) . " ./\n";
 
         for my $repospec (@{$self->get_conf('EXTRA_REPOSITORIES')}) {
             print $tmpfh "$repospec\n";