# since this is for old instances w/o manifest.js.gz, try v1 first
return clone_v1($self) if grep(m!\A\Q$url\E/*\z!, @urls);
if (my @v2_urls = grep(m!\A\Q$url\E/[0-9]+\z!, @urls)) {
- my %v2_uris = map { $_ => URI->new($_) } @v2_urls; # uniq
- return clone_v2($self, [ values %v2_uris ]);
+ my %v2_epochs = map {
+ my ($n) = (m!/([0-9]+)\z!);
+ $n => URI->new($_)
+ } @v2_urls; # uniq
+ return clone_v2($self, \%v2_epochs);
}
# filter out common URLs served by WWW (e.g /$MSGID/T/)
my $lei = $self->{lei};
my $curl = $self->{curl} //= PublicInbox::LeiCurl->new($lei) or return;
my $uri = URI->new($self->{src});
+ defined($lei->{opt}->{epoch}) and
+ die "$uri is a v1 inbox, --epoch is not supported\n";
my $pfx = $curl->torsocks($lei, $uri) or return;
my $cmd = [ @$pfx, clone_cmd($lei, my $opt = {}),
$uri->as_string, $self->{dst} ];
index_cloned_inbox($self, 1);
}
-sub clone_v2 {
- my ($self, $v2_uris) = @_;
+sub parse_epochs ($$) {
+ my ($opt_epochs, $v2_epochs) = @_; # $epcohs "LOW..HIGH"
+ $opt_epochs // return; # undef => all epochs
+ my ($lo, $dotdot, $hi, @extra) = split(/(\.\.)/, $opt_epochs);
+ undef($lo) if ($lo // '') eq '';
+ my $re = qr/\A~?[0-9]+\z/;
+ if (@extra || (($lo // '0') !~ $re) ||
+ (($hi // '0') !~ $re) ||
+ !(grep(defined, $lo, $hi))) {
+ die <<EOM;
+--epoch=$opt_epochs not in the form of `LOW..HIGH', `LOW..', nor `..HIGH'
+EOM
+ }
+ my @n = sort { $a <=> $b } keys %$v2_epochs;
+ for (grep(defined, $lo, $hi)) {
+ if (/\A[0-9]+\z/) {
+ $_ > $n[-1] and die
+"`$_' exceeds maximum available epoch ($n[-1])\n";
+ $_ < $n[0] and die
+"`$_' is lower than minimum available epoch ($n[0])\n";
+ } elsif (/\A~([0-9]+)/) {
+ my $off = -$1 - 1;
+ $n[$off] // die "`$_' is out of range\n";
+ $_ = $n[$off];
+ } else { die "`$_' not understood\n" }
+ }
+ defined($lo) && defined($hi) && $lo > $hi and die
+"low value (`$lo') exceeds high (`$hi')\n";
+ $lo //= $n[0] if $dotdot;
+ $hi //= $n[-1] if $dotdot;
+ $hi //= $lo;
+ my $want = {};
+ for ($lo..$hi) {
+ if (defined $v2_epochs->{$_}) {
+ $want->{$_} = 1;
+ } else {
+ warn
+"# epoch $_ is not available (non-fatal, $lo..$hi)\n";
+ }
+ }
+ $want
+}
+
+sub init_placeholder ($$) {
+ my ($src, $edst) = @_;
+ PublicInbox::Import::init_bare($edst);
+ my $f = "$edst/config";
+ open my $fh, '>>', $f or die "open($f): $!";
+ print $fh <<EOM or die "print($f): $!";
+[remote "origin"]
+ url = $src
+ fetch = +refs/*:refs/*
+ mirror = true
+
+; This git epoch was created read-only and "public-inbox-fetch"
+; will not fetch updates for it unless write permission is added.
+EOM
+ close $fh or die "close:($f): $!";
+}
+
+sub clone_v2 ($$) {
+ my ($self, $v2_epochs) = @_;
my $lei = $self->{lei};
my $curl = $self->{curl} //= PublicInbox::LeiCurl->new($lei) or return;
- my $pfx //= $curl->torsocks($lei, $v2_uris->[0]) or return;
+ my $pfx = $curl->torsocks($lei, (values %$v2_epochs)[0]) or return;
my $dst = $self->{dst};
- my @src_edst;
- for my $uri (@$v2_uris) {
+ my $want = parse_epochs($lei->{opt}->{epoch}, $v2_epochs);
+ my (@src_edst, @read_only);
+ for my $nr (sort { $a <=> $b } keys %$v2_epochs) {
+ my $uri = $v2_epochs->{$nr};
my $src = $uri->as_string;
my $edst = $dst;
$src =~ m!/([0-9]+)(?:\.git)?\z! or die <<"";
failed to extract epoch number from $src
- my $nr = $1 + 0;
+ $1 + 0 == $nr or die "BUG: <$uri> miskeyed $1 != $nr";
$edst .= "/git/$nr.git";
- push @src_edst, $src, $edst;
+ if (!$want || $want->{$nr}) {
+ push @src_edst, $src, $edst;
+ } else { # create a placeholder so users only need to chmod +w
+ init_placeholder($src, $edst);
+ push @read_only, $edst;
+ }
}
my $lk = bless { lock_path => "$dst/inbox.lock" }, 'PublicInbox::Lock';
_try_config($self);
my $mg = PublicInbox::MultiGit->new($dst, 'all.git', 'git');
$mg->fill_alternates;
for my $i ($mg->git_epochs) { $mg->epoch_cfg_set($i) }
+ for my $edst (@read_only) {
+ my @st = stat($edst) or die "stat($edst): $!";
+ chmod($st[2] & 0555, $edst) or die "chmod(a-w, $edst): $!";
+ }
write_makefile($self->{dst}, 2);
undef $on_destroy; # unlock
index_cloned_inbox($self, 2);
# @v2_epochs
# ignoring $v1_path (use --inbox-version=1 to force v1 instead)
EOM
- @v2_epochs = map {
+ my %v2_epochs = map {
$uri->path($path_pfx.$_);
- $uri->clone
+ my ($n) = ("$uri" =~ m!/([0-9]+)\.git\z!);
+ $n => $uri->clone
} @v2_epochs;
- clone_v2($self, \@v2_epochs);
+ clone_v2($self, \%v2_epochs);
} elsif (defined $v1_path) {
clone_v1($self);
} else {