www_coderepo: /tree/ 404s search git history

[public-inbox.git] / lib / PublicInbox / RepoTree.pm

diff --git a/lib/PublicInbox/RepoTree.pm b/lib/PublicInbox/RepoTree.pm
index 7f2ff2062b2e10bc2d2407346a8e8743f39d5d91..cec71eb6570108060c543a36dfe8195a877634a2 100644 (file)
--- a/lib/PublicInbox/RepoTree.pm
+++ b/lib/PublicInbox/RepoTree.pm
@@ -7,11 +7,51 @@ use v5.12;
 use PublicInbox::ViewDiff qw(uri_escape_path);
 use PublicInbox::GitAsyncCat;
 use PublicInbox::WwwStatic qw(r);
+use PublicInbox::Qspawn;
+use PublicInbox::WwwStream qw(html_oneshot);
+use PublicInbox::Hval qw(ascii_html);
+
+sub rd_404_log {
+       my ($bref, $ctx) = @_;
+       my $path = $ctx->{-q_value_html} = ascii_html($ctx->{-path});
+       my $tip = 'HEAD';
+       $tip = ascii_html($ctx->{qp}->{h}) if defined($ctx->{qp}->{h});
+       PublicInbox::WwwStream::html_init($ctx);
+       my $zfh = $ctx->{zfh};
+       print $zfh "<pre>\$ git log -1 $tip -- $path\n";
+       if ($$bref eq '') {
+               say $zfh "found no record of `$path' in git history";
+               $ctx->{-has_srch} and
+                       say $zfh 'perhaps try searching mail (above)';
+       } else {
+               my ($H, $h, $s_as) = split(/ /, $$bref, 3);
+               utf8::decode($s_as);
+               my $x = uri_escape_path($ctx->{-path});
+               $s_as = ascii_html($s_as);
+               print $zfh <<EOM;
+found last record of `$path' in the following commit:
+
+<a href="$ctx->{-upfx}$H/s/?b=$x">$h</a> $s_as
+EOM
+       }
+       delete($ctx->{-wcb})->($ctx->html_done);
+}
+
+sub find_missing {
+       my ($ctx) = @_;
+       my $cmd = ['git', "--git-dir=$ctx->{git}->{git_dir}",
+               qw(log --no-color -1), '--pretty=%H %h %s (%as)' ];
+       push @$cmd, $ctx->{qp}->{h} if defined($ctx->{qp}->{h});
+       push @$cmd, '--';
+       push @$cmd, $ctx->{-path} if $ctx->{-path} ne '';
+       my $qsp = PublicInbox::Qspawn->new($cmd);
+       $qsp->psgi_qx($ctx->{env}, undef, \&rd_404_log, $ctx);
+}
 
 sub tree_30x { # git check_async callback
        my ($oid, $type, $size, $ctx) = @_;
+       return find_missing($ctx) if $type eq 'missing';
        my $wcb = delete $ctx->{-wcb};
-       return $wcb->(r(404)) if $type eq 'missing';
        my $u = $ctx->{git}->base_url($ctx->{env});
        my $path = uri_escape_path(delete $ctx->{-path});
        $u .= "$oid/s/?b=$path";
@@ -23,6 +63,7 @@ sub srv_tree {
        my ($ctx, $path) = @_;
        return if index($path, '//') >= 0 || index($path, '/') == 0;
        my $tip = $ctx->{qp}->{h} // 'HEAD';
+       $ctx->{-upfx} = '../' x (($path =~ tr!/!/!) + 1);
        $path =~ s!/\z!!;
        my $obj = $ctx->{-obj} = "$tip:$path";
        $ctx->{-path} = $path;