+ # 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]);
+ }
+}
+
+my $err = '';
+my $oldrev = '0b3e19584c90d958a723ac2d3dec3f84f5513688~1';
+# 3e0e596105198cfa (wwwlisting: allow hiding entries from manifest, 2019-06-09)
+$oldrev = xqx([qw(git rev-parse), $oldrev], undef, { 2 => \$err });
+SKIP: {
+ skip("no detected public-inbox GIT_DIR ($err)", 1) if $?;
+ require_mods('Email::MIME', 1); # for legacy revision
+ # using plackup to test old PublicInbox::WWW since -httpd from
+ # back then relied on some packages we no longer depend on
+ my $plackup = which('plackup') or skip('no plackup in path', 1);
+ require PublicInbox::Lock;
+ chomp $oldrev;
+ my ($base) = ($0 =~ m!\b([^/]+)\.[^\.]+\z!);
+ my $wt = "t/data-gen/$base.pre-manifest-$oldrev";
+ my $lk = bless { lock_path => __FILE__ }, 'PublicInbox::Lock';
+ $lk->lock_acquire;
+ my $psgi = "$wt/app.psgi";
+ if (!-f $psgi) { # checkout a pre-manifest.js.gz version
+ my $t = File::Temp->new(TEMPLATE => 'g-XXXX', TMPDIR => 1);
+ my $env = { GIT_INDEX_FILE => $t->filename };
+ xsys([qw(git read-tree), $oldrev], $env) and xbail 'read-tree';
+ xsys([qw(git checkout-index -a), "--prefix=$wt/"], $env)
+ and xbail 'checkout-index';
+ my $f = "$wt/app.psgi.tmp.$$";
+ open my $fh, '>', $f or xbail $!;
+ print $fh <<'EOM' or xbail $!;
+use Plack::Builder;
+use PublicInbox::WWW;
+my $www = PublicInbox::WWW->new;
+builder { enable 'Head'; sub { $www->call(@_) } }
+EOM
+ close $fh or xbail $!;
+ rename($f, $psgi) or xbail $!;
+ }
+ $lk->lock_release;
+
+ $rdr->{run_mode} = 0;
+ $rdr->{-C} = $wt;
+ my $cmd = [$plackup, qw(-Enone -Ilib), "--host=$host", "--port=$port"];
+ $td->join('TERM');
+ open $rdr->{2}, '>>', "$tmpdir/plackup.err.log" or xbail "open: $!";
+ open $rdr->{1}, '>>&', $rdr->{2} or xbail "open: $!";
+ my $env = { PERL5LIB => 'lib', PERL_INLINE_DIRECTORY => undef };
+ $td = start_script($cmd, $env, $rdr);
+ # wait for plackup socket()+bind()+listen()
+ my %opt = ( Proto => 'tcp', Type => Socket::SOCK_STREAM(),
+ PeerAddr => "$host:$port" );
+ for (0..50) {
+ tick();
+ last if IO::Socket::INET->new(%opt);
+ }
+ my $dst = "$tmpdir/scrape";
+ @cmd = (qw(-clone -q), "http://$host:$port/v2", $dst);
+ run_script(\@cmd, undef, { 2 => \($err = '') });
+ is($?, 0, 'scraping clone on old PublicInbox::WWW')
+ or diag $err;
+ my @g_all = glob("$dst/git/*.git");
+ ok(scalar(@g_all) > 1, 'cloned multiple epochs');
+
+ remove_tree($dst);
+ @cmd = (qw(-clone -q --epoch=~0), "http://$host:$port/v2", $dst);
+ run_script(\@cmd, undef, { 2 => \($err = '') });
+ is($?, 0, 'partial scraping clone on old PublicInbox::WWW');
+ my @g_last = grep { (stat($_))[2] & 0200 } glob("$dst/git/*.git");
+ is_deeply(\@g_last, [ $g_all[-1] ], 'partial clone of ~0 worked');
+
+ chmod(0755, $g_all[0]) or xbail "chmod $!";
+ my @before = glob("$g_all[0]/objects/*/*");
+ run_script([qw(-fetch -v)], undef, { -C => $dst, 2 => \($err = '') });
+ is($?, 0, 'scraping fetch on old PublicInbox::WWW') or diag $err;
+ my @after = glob("$g_all[0]/objects/*/*");
+ ok(scalar(@before) < scalar(@after),
+ 'fetched 0.git after enabling write-bit');
+
+ $td->join('TERM');
+}