# Copyright (C) 2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# generates manifest.js.gz for grokmirror(1)
package PublicInbox::ManifestJsGz;
use strict;
use v5.10.1;
-use Digest::SHA ();
-use File::Spec ();
+use parent qw(PublicInbox::WwwListing);
use bytes (); # length
-use PublicInbox::Inbox;
-use PublicInbox::Git;
+use PublicInbox::Config;
use IO::Compress::Gzip qw(gzip);
use HTTP::Date qw(time2str);
-*try_cat = \&PublicInbox::Inbox::try_cat;
-
-our $json;
-for my $mod (qw(JSON::MaybeXS JSON JSON::PP)) {
- eval "require $mod" or next;
- # ->ascii encodes non-ASCII to "\uXXXX"
- $json = $mod->new->ascii(1) and last;
-}
-sub response {
- my ($env, $list) = @_;
- $json or return [ 404, [], [] ];
- my $self = bless {
- -abs2urlpath => {},
- -mtime => 0,
- manifest => {},
- -list => $list,
- psgi_env => $env,
- }, __PACKAGE__;
+my $json = PublicInbox::Config::json();
- # PSGI server will call this immediately and give us a callback (-wcb)
- sub {
- $self->{-wcb} = $_[0]; # HTTP write callback
- iterate_start($self);
- };
+# called by WwwListing
+sub url_regexp {
+ my ($ctx) = @_;
+ # grokmirror uses relative paths, so it's domain-dependent
+ # SUPER calls PublicInbox::WwwListing::url_regexp
+ $ctx->SUPER::url_regexp('publicInbox.grokManifest', 'match=domain');
}
-sub fingerprint ($) {
- my ($git) = @_;
- # TODO: convert to qspawn for fairness when there's
- # thousands of repos
- my ($fh, $pid) = $git->popen('show-ref');
- my $dig = Digest::SHA->new(1);
- while (read($fh, my $buf, 65536)) {
- $dig->add($buf);
- }
- close $fh;
- waitpid($pid, 0);
- return if $?; # empty, uninitialized git repo
- $dig->hexdigest;
+sub inject_entry ($$$;$) {
+ my ($ctx, $url_path, $ent, $git_dir) = @_;
+ $ctx->{-abs2urlpath}->{$git_dir // delete $ent->{git_dir}} = $url_path;
+ my $modified = $ent->{modified};
+ $ctx->{-mtime} = $modified if $modified > ($ctx->{-mtime} // 0);
+ $ctx->{manifest}->{$url_path} = $ent;
}
sub manifest_add ($$;$$) {
- my ($self, $ibx, $epoch, $default_desc) = @_;
+ my ($ctx, $ibx, $epoch, $default_desc) = @_;
my $url_path = "/$ibx->{name}";
- my $git_dir = $ibx->{inboxdir};
+ my $git;
if (defined $epoch) {
- $git_dir .= "/git/$epoch.git";
$url_path .= "/git/$epoch.git";
+ $git = $ibx->git_epoch($epoch) or return;
+ } else {
+ $git = $ibx->git;
}
- return unless -d $git_dir;
- my $git = PublicInbox::Git->new($git_dir);
- my $fingerprint = fingerprint($git) or return; # no empty repos
-
- chomp(my $owner = $git->qx('config', 'gitweb.owner'));
- chomp(my $desc = try_cat("$git_dir/description"));
- utf8::decode($owner);
- utf8::decode($desc);
- $owner = undef if $owner eq '';
- $desc = 'Unnamed repository' if $desc eq '';
-
- # templates/hooks--update.sample and git-multimail in git.git
- # only match "Unnamed repository", not the full contents of
- # templates/this--description in git.git
- if ($desc =~ /\AUnnamed repository/) {
- $desc = "$default_desc [epoch $epoch]" if defined($epoch);
- }
-
- my $reference;
- chomp(my $alt = try_cat("$git_dir/objects/info/alternates"));
- if ($alt) {
- # n.b.: GitPython doesn't seem to handle comments or C-quoted
- # strings like native git does; and we don't for now, either.
- my @alt = split(/\n+/, $alt);
+ my $ent = $git->manifest_entry($epoch, $default_desc) or return;
+ inject_entry($ctx, $url_path, $ent, $git->{git_dir});
+}
- # grokmirror only supports 1 alternate for "reference",
- if (scalar(@alt) == 1) {
- my $objdir = "$git_dir/objects";
- $reference = File::Spec->rel2abs($alt[0], $objdir);
- $reference =~ s!/[^/]+/?\z!!; # basename
+sub slow_manifest_add ($$) {
+ my ($ctx, $ibx) = @_;
+ eval {
+ if (defined(my $max = $ibx->max_git_epoch)) {
+ my $desc = $ibx->description;
+ for my $epoch (0..$max) {
+ manifest_add($ctx, $ibx, $epoch, $desc);
+ }
+ } else {
+ manifest_add($ctx, $ibx);
}
- }
- $self->{-abs2urlpath}->{$git_dir} = $url_path;
- my $modified = $git->modified;
- if ($modified > $self->{-mtime}) {
- $self->{-mtime} = $modified;
- }
- $self->{manifest}->{$url_path} = {
- owner => $owner,
- reference => $reference,
- description => $desc,
- modified => $modified,
- fingerprint => $fingerprint,
};
}
-sub iterate_start {
- my ($self) = @_;
- if (my $async = $self->{psgi_env}->{'pi-httpd.async'}) {
- # PublicInbox::HTTPD::Async->new
- $async->(undef, undef, $self);
+sub eidx_manifest_add ($$$) {
+ my ($ctx, $ALL, $ibx) = @_;
+ if (my $data = $ALL->misc->inbox_data($ibx)) {
+ $data = $json->decode($data);
+ delete $data->{''}; # private
+ while (my ($url_path, $ent) = each %$data) {
+ inject_entry($ctx, $url_path, $ent);
+ }
} else {
- event_step($self) while $self->{-wcb};
+ warn "E: `${\$ibx->eidx_key}' not indexed by $ALL->{topdir}\n";
}
}
-sub event_step {
- my ($self) = @_;
- while (my $ibx = shift(@{$self->{-list}})) {
- eval {
- if (defined(my $max = $ibx->max_git_epoch)) {
- my $desc = $ibx->description;
- for my $epoch (0..$max) {
- manifest_add($self, $ibx, $epoch, $desc)
- }
- } else {
- manifest_add($self, $ibx);
- }
- };
- warn "E: $@" if $@;
- if (my $async = $self->{psgi_env}->{'pi-httpd.async'}) {
- # PublicInbox::HTTPD::Async->new
- $async->(undef, undef, $self);
- }
- return; # more steps needed
+sub ibx_entry {
+ my ($ctx, $ibx) = @_;
+ my $ALL = $ctx->{www}->{pi_cfg}->ALL;
+ if ($ALL) {
+ eidx_manifest_add($ctx, $ALL, $ibx);
+ } else {
+ slow_manifest_add($ctx, $ibx);
}
- my $abs2urlpath = delete $self->{-abs2urlpath};
- my $wcb = delete $self->{-wcb};
- my $manifest = delete $self->{manifest};
+ warn "E: $@" if $@;
+}
+
+sub hide_key { 'manifest' }
+
+# overrides WwwListing->psgi_triple
+sub psgi_triple {
+ my ($ctx) = @_;
+ my $abs2urlpath = delete($ctx->{-abs2urlpath}) // {};
+ my $manifest = delete($ctx->{manifest}) // {};
while (my ($url_path, $repo) = each %$manifest) {
defined(my $abs = $repo->{reference}) or next;
$repo->{reference} = $abs2urlpath->{$abs};
}
$manifest = $json->encode($manifest);
gzip(\$manifest => \(my $out));
- $wcb->([ 200, [ qw(Content-Type application/gzip),
- 'Last-Modified', time2str($self->{-mtime}),
- 'Content-Length', bytes::length($out) ], [ $out ] ]);
+ [ 200, [ qw(Content-Type application/gzip),
+ 'Last-Modified', time2str($ctx->{-mtime}),
+ 'Content-Length', bytes::length($out) ], [ $out ] ]
+}
+
+sub per_inbox {
+ my ($ctx) = @_;
+ # only one inbox, slow is probably OK
+ slow_manifest_add($ctx, $ctx->{ibx});
+ psgi_triple($ctx);
}
1;