+ok(scalar(@new_epochs), 'new epochs were created and fetched');
+for my $d (@new_epochs) {
+ is(xqx(['git', "--git-dir=$d", 'config', qw(include.path)]),
+ "../../all.git/config\n",
+ 'include.path set');
+}
+
+if ('test read-only epoch dirs') {
+ my @git = ('git', "--git-dir=$new_epochs[0]");
+ my $get_objs = [@git,
+ qw(cat-file --buffer --batch-check --batch-all-objects)];
+ my $before = [sort xqx($get_objs)];
+
+ remove_tree(map { "$new_epochs[0]/$_" } qw(objects refs/heads));
+ chmod(0555, $new_epochs[0]) or xbail "chmod: $!";
+
+ # force a refetch
+ unlink("$tmpdir/m/manifest.js.gz") or xbail "unlink: $!";
+
+ run_script([qw(-fetch -q)], undef, {-C => "$tmpdir/m"}) or
+ xbail '-fetch failed';
+
+ ok(!-d "$new_epochs[0]/objects", 'no objects after fetch to R/O dir');
+
+ chmod(0755, $new_epochs[0]) or xbail "chmod: $!";
+ mkdir("$new_epochs[0]/objects") or xbail "mkdir: $!";
+ mkdir("$new_epochs[0]/refs/heads") or xbail "mkdir: $!";
+
+ my $err = '';
+ run_script([qw(-fetch -q)], undef, {-C => "$tmpdir/m", 2 => \$err}) or
+ xbail '-fetch failed '.$err;
+ is_deeply([ sort xqx($get_objs) ], $before,
+ 'fetch restored objects once GIT_DIR became writable');
+}
+
+{
+ my $dst = "$tmpdir/partial";
+ run_script([qw(-clone -q --epoch=~0), "http://$host:$port/v2/", $dst]);
+ is($?, 0, 'no error from partial clone');
+ my @g = glob("$dst/git/*.git");
+ my @w = grep { -w $_ } @g;
+ my @r = grep { ! -w $_ } @g;
+ is(scalar(@w), 1, 'one writable directory');
+ my ($w) = ($w[0] =~ m!/([0-9]+)\.git\z!);
+ is((grep {
+ m!/([0-9]+)\.git\z! or xbail "no digit in $_";
+ $w > ($1 + 0)
+ } @r), scalar(@r), 'writable epoch # exceeds read-only ones');
+ run_script([qw(-fetch -q)], undef, { -C => $dst });
+ is($?, 0, 'no error from partial fetch');
+ remove_tree($dst);
+
+ run_script([qw(-clone -q --epoch=~1..),
+ "http://$host:$port/v2/", $dst]);
+ my @g2 = glob("$dst/git/*.git") ;
+ is_deeply(\@g2, \@g, 'cloned again');
+ is(scalar(grep { -w $_ } @g2), scalar(@w) + 1,
+ 'got one more cloned epoch');
+
+ # make 0.git writable and fetch into it, relies on culled manifest
+ chmod(0755, $g2[0]) or xbail "chmod: $!";
+ my @before = glob("$g2[0]/objects/*/*");
+ run_script([qw(-fetch -q)], undef, { -C => $dst });
+ is($?, 0, 'no error from partial fetch');
+ my @after = glob("$g2[0]/objects/*/*");
+ ok(scalar(@before) < scalar(@after), 'fetched after chmod 0755 0.git');
+
+ # ensure culled manifest is maintained after fetch
+ gunzip("$dst/manifest.js.gz" => \(my $m), MultiStream => 1) or
+ xbail "gunzip: $GunzipError";
+ $m = PublicInbox::Config->json->decode($m);
+ for my $k (keys %$m) { # /$name/git/$N.git
+ my ($nr) = ($k =~ m!/git/([0-9]+)\.git\z!);
+ ok(-w "$dst/git/$nr.git", "writable $nr.git in manifest");
+ }
+ for my $ro (grep { !-w $_ } @g2) {
+ my ($nr) = ($ro =~ m!/git/([0-9]+)\.git\z!);
+ is(grep(m!/git/$nr\.git\z!, keys %$m), 0,
+ "read-only $nr.git not in manifest")
+ or xbail([sort keys %$m]);
+ }
+}