Why does it mean we do not have to register shallow if we have one?
[gitweb.git] / gitweb / gitweb.perl
index bf58c3bac8ff807bb2640815668a49a3e4c723fc..6ae7e80351d597d21f474e72083c83b93ea45bbf 100755 (executable)
@@ -425,6 +425,7 @@ sub evaluate_path_info {
        "history" => \&git_history,
        "log" => \&git_log,
        "rss" => \&git_rss,
+       "atom" => \&git_atom,
        "search" => \&git_search,
        "search_help" => \&git_search_help,
        "shortlog" => \&git_shortlog,
@@ -459,7 +460,8 @@ sub evaluate_path_info {
 
 sub href(%) {
        my %params = @_;
-       my $href = $my_uri;
+       # default is to use -absolute url() i.e. $my_uri
+       my $href = $params{-full} ? $my_url : $my_uri;
 
        # XXX: Warning: If you touch this, check the search form for updating,
        # too.
@@ -874,8 +876,10 @@ sub format_subject_html {
        }
 }
 
+# format patch (diff) line (rather not to be used for diff headers)
 sub format_diff_line {
        my $line = shift;
+       my ($from, $to) = @_;
        my $char = substr($line, 0, 1);
        my $diff_class = "";
 
@@ -891,6 +895,25 @@ sub format_diff_line {
                $diff_class = " incomplete";
        }
        $line = untabify($line);
+       if ($from && $to && $line =~ m/^\@{2} /) {
+               my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
+                       $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
+
+               $from_lines = 0 unless defined $from_lines;
+               $to_lines   = 0 unless defined $to_lines;
+
+               if ($from->{'href'}) {
+                       $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
+                                            -class=>"list"}, $from_text);
+               }
+               if ($to->{'href'}) {
+                       $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
+                                            -class=>"list"}, $to_text);
+               }
+               $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
+                       "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
+               return "<div class=\"diff$diff_class\">$line</div>\n";
+       }
        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 }
 
@@ -1176,10 +1199,12 @@ sub parse_date {
        $date{'mday'} = $mday;
        $date{'day'} = $days[$wday];
        $date{'month'} = $months[$mon];
-       $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
-                          $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
+       $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
+                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
                             $mday, $months[$mon], $hour ,$min;
+       $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
+                            1900+$year, $mon, $mday, $hour ,$min, $sec;
 
        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
@@ -1187,9 +1212,9 @@ sub parse_date {
        $date{'hour_local'} = $hour;
        $date{'minute_local'} = $min;
        $date{'tz_local'} = $tz;
-       $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
-                                  1900+$year, $mon+1, $mday,
-                                  $hour, $min, $sec, $tz);
+       $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
+                                 1900+$year, $mon+1, $mday,
+                                 $hour, $min, $sec, $tz);
        return %date;
 }
 
@@ -1650,14 +1675,17 @@ sub git_header_html {
                }
        }
        if (defined $project) {
-               printf('<link rel="alternate" title="%s log" '.
-                      'href="%s" type="application/rss+xml"/>'."\n",
+               printf('<link rel="alternate" title="%s log RSS feed" '.
+                      'href="%s" type="application/rss+xml" />'."\n",
                       esc_param($project), href(action=>"rss"));
+               printf('<link rel="alternate" title="%s log Atom feed" '.
+                      'href="%s" type="application/atom+xml" />'."\n",
+                      esc_param($project), href(action=>"atom"));
        } else {
                printf('<link rel="alternate" title="%s projects list" '.
                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
                       $site_name, href(project=>undef, action=>"project_index"));
-               printf('<link rel="alternate" title="%s projects logs" '.
+               printf('<link rel="alternate" title="%s projects feeds" '.
                       'href="%s" type="text/x-opml"/>'."\n",
                       $site_name, href(project=>undef, action=>"opml"));
        }
@@ -1723,7 +1751,9 @@ sub git_footer_html {
                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
                }
                print $cgi->a({-href => href(action=>"rss"),
-                             -class => "rss_logo"}, "RSS") . "\n";
+                             -class => "rss_logo"}, "RSS") . " ";
+               print $cgi->a({-href => href(action=>"atom"),
+                             -class => "rss_logo"}, "Atom") . "\n";
        } else {
                print $cgi->a({-href => href(project=>undef, action=>"opml"),
                              -class => "rss_logo"}, "OPML") . " ";
@@ -2062,7 +2092,11 @@ sub git_difftree_body {
                                # link to patch
                                $patchno++;
                                print $cgi->a({-href => "#patch$patchno"}, "patch");
+                               print " | ";
                        }
+                       print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                    hash_base=>$hash, file_name=>$diff{'file'})},
+                                     "blob") . " | ";
                        print "</td>\n";
 
                } elsif ($diff{'status'} eq "D") { # deleted
@@ -2082,13 +2116,11 @@ sub git_difftree_body {
                        }
                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
                                                     hash_base=>$parent, file_name=>$diff{'file'})},
-                                     "blob") . " | ";
+                                     "blob") . " | ";
                        if ($have_blame) {
-                               print $cgi->a({-href =>
-                                                  href(action=>"blame",
-                                                       hash_base=>$parent,
-                                                       file_name=>$diff{'file'})},
-                                             "blame") . " | ";
+                               print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
+                                                            file_name=>$diff{'file'})},
+                                             "blame") . " | ";
                        }
                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
                                                     file_name=>$diff{'file'})},
@@ -2133,13 +2165,12 @@ sub git_difftree_body {
                                      " | ";
                        }
                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff{'file'})},
-                                     "blob") . " | ";
+                                                    hash_base=>$hash, file_name=>$diff{'file'})},
+                                      "blob") . " | ";
                        if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame",
-                                                            hash_base=>$hash,
-                                                            file_name=>$diff{'file'})},
-                                             "blame") . " | ";
+                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
+                                                            file_name=>$diff{'file'})},
+                                             "blame") . " | ";
                        }
                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
                                                     file_name=>$diff{'file'})},
@@ -2178,17 +2209,16 @@ sub git_difftree_body {
                                              "diff") .
                                      " | ";
                        }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
-                                                    hash_base=>$parent, file_name=>$diff{'from_file'})},
-                                     "blob") . " | ";
+                       print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                    hash_base=>$parent, file_name=>$diff{'to_file'})},
+                                     "blob") . " | ";
                        if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame",
-                                                            hash_base=>$hash,
-                                                            file_name=>$diff{'to_file'})},
-                                             "blame") . " | ";
+                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
+                                                            file_name=>$diff{'to_file'})},
+                                             "blame") . " | ";
                        }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
-                                                   file_name=>$diff{'from_file'})},
+                       print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
+                                                   file_name=>$diff{'to_file'})},
                                      "history");
                        print "</td>\n";
 
@@ -2372,7 +2402,7 @@ sub git_patchset_body {
 
                        next PATCH if ($patch_line =~ m/^diff /);
 
-                       print format_diff_line($patch_line);
+                       print format_diff_line($patch_line, \%from, \%to);
                }
 
        } continue {
@@ -2888,8 +2918,8 @@ sub git_tag {
        print "<div class=\"page_body\">";
        my $comment = $tag{'comment'};
        foreach my $line (@$comment) {
-               chomp($line);
-               print esc_html($line) . "<br/>\n";
+               chomp $line;
+               print esc_html($line, -nbsp=>1) . "<br/>\n";
        }
        print "</div>\n";
        git_footer_html();
@@ -2958,7 +2988,7 @@ sub git_blame2 {
                        }
                }
                my $data = $_;
-               chomp($data);
+               chomp $data;
                my $rev = substr($full_rev, 0, 8);
                my $author = $meta->{'author'};
                my %date = parse_date($meta->{'author-time'},
@@ -3429,6 +3459,7 @@ sub git_log {
 }
 
 sub git_commit {
+       $hash ||= $hash_base || "HEAD";
        my %co = parse_commit($hash);
        if (!%co) {
                die_error(undef, "Unknown commit object");
@@ -3706,6 +3737,7 @@ sub git_blobdiff_plain {
 
 sub git_commitdiff {
        my $format = shift || 'html';
+       $hash ||= $hash_base || "HEAD";
        my %co = parse_commit($hash);
        if (!%co) {
                die_error(undef, "Unknown commit object");
@@ -4126,26 +4158,125 @@ sub git_shortlog {
 }
 
 ## ......................................................................
-## feeds (RSS, OPML)
+## feeds (RSS, Atom; OPML)
 
-sub git_rss {
-       # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
+sub git_feed {
+       my $format = shift || 'atom';
+       my ($have_blame) = gitweb_check_feature('blame');
+
+       # Atom: http://www.atomenabled.org/developers/syndication/
+       # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
+       if ($format ne 'rss' && $format ne 'atom') {
+               die_error(undef, "Unknown web feed format");
+       }
+
+       # log/feed of current (HEAD) branch, log of given branch, history of file/directory
+       my $head = $hash || 'HEAD';
        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
-               git_get_head_hash($project), "--"
+               $head, "--", (defined $file_name ? $file_name : ())
                or die_error(undef, "Open git-rev-list failed");
        my @revlist = map { chomp; $_ } <$fd>;
        close $fd or die_error(undef, "Reading git-rev-list failed");
-       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
-       print <<XML;
-<?xml version="1.0" encoding="utf-8"?>
+
+       my %latest_commit;
+       my %latest_date;
+       my $content_type = "application/$format+xml";
+       if (defined $cgi->http('HTTP_ACCEPT') &&
+                $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
+               # browser (feed reader) prefers text/xml
+               $content_type = 'text/xml';
+       }
+       if (defined($revlist[0])) {
+               %latest_commit = parse_commit($revlist[0]);
+               %latest_date   = parse_date($latest_commit{'committer_epoch'});
+               print $cgi->header(
+                       -type => $content_type,
+                       -charset => 'utf-8',
+                       -last_modified => $latest_date{'rfc2822'});
+       } else {
+               print $cgi->header(
+                       -type => $content_type,
+                       -charset => 'utf-8');
+       }
+
+       # Optimization: skip generating the body if client asks only
+       # for Last-Modified date.
+       return if ($cgi->request_method() eq 'HEAD');
+
+       # header variables
+       my $title = "$site_name - $project/$action";
+       my $feed_type = 'log';
+       if (defined $hash) {
+               $title .= " - '$hash'";
+               $feed_type = 'branch log';
+               if (defined $file_name) {
+                       $title .= " :: $file_name";
+                       $feed_type = 'history';
+               }
+       } elsif (defined $file_name) {
+               $title .= " - $file_name";
+               $feed_type = 'history';
+       }
+       $title .= " $feed_type";
+       my $descr = git_get_project_description($project);
+       if (defined $descr) {
+               $descr = esc_html($descr);
+       } else {
+               $descr = "$project " .
+                        ($format eq 'rss' ? 'RSS' : 'Atom') .
+                        " feed";
+       }
+       my $owner = git_get_project_owner($project);
+       $owner = esc_html($owner);
+
+       #header
+       my $alt_url;
+       if (defined $file_name) {
+               $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
+       } elsif (defined $hash) {
+               $alt_url = href(-full=>1, action=>"log", hash=>$hash);
+       } else {
+               $alt_url = href(-full=>1, action=>"summary");
+       }
+       print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
+       if ($format eq 'rss') {
+               print <<XML;
 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
 <channel>
-<title>$project $my_uri $my_url</title>
-<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
-<description>$project log</description>
-<language>en</language>
 XML
+               print "<title>$title</title>\n" .
+                     "<link>$alt_url</link>\n" .
+                     "<description>$descr</description>\n" .
+                     "<language>en</language>\n";
+       } elsif ($format eq 'atom') {
+               print <<XML;
+<feed xmlns="http://www.w3.org/2005/Atom">
+XML
+               print "<title>$title</title>\n" .
+                     "<subtitle>$descr</subtitle>\n" .
+                     '<link rel="alternate" type="text/html" href="' .
+                     $alt_url . '" />' . "\n" .
+                     '<link rel="self" type="' . $content_type . '" href="' .
+                     $cgi->self_url() . '" />' . "\n" .
+                     "<id>" . href(-full=>1) . "</id>\n" .
+                     # use project owner for feed author
+                     "<author><name>$owner</name></author>\n";
+               if (defined $favicon) {
+                       print "<icon>" . esc_url($favicon) . "</icon>\n";
+               }
+               if (defined $logo_url) {
+                       # not twice as wide as tall: 72 x 27 pixels
+                       print "<logo>" . esc_url($logo_url) . "</logo>\n";
+               }
+               if (! %latest_date) {
+                       # dummy date to keep the feed valid until commits trickle in:
+                       print "<updated>1970-01-01T00:00:00Z</updated>\n";
+               } else {
+                       print "<updated>$latest_date{'iso-8601'}</updated>\n";
+               }
+       }
 
+       # contents
        for (my $i = 0; $i <= $#revlist; $i++) {
                my $commit = $revlist[$i];
                my %co = parse_commit($commit);
@@ -4154,42 +4285,100 @@ sub git_rss {
                        last;
                }
                my %cd = parse_date($co{'committer_epoch'});
+
+               # get list of changed files
                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       $co{'parent'}, $co{'id'}, "--"
+                       $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
                        or next;
                my @difftree = map { chomp; $_ } <$fd>;
                close $fd
                        or next;
-               print "<item>\n" .
-                     "<title>" .
-                     sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
-                     "</title>\n" .
-                     "<author>" . esc_html($co{'author'}) . "</author>\n" .
-                     "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
-                     "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
-                     "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
-                     "<description>" . esc_html($co{'title'}) . "</description>\n" .
-                     "<content:encoded>" .
-                     "<![CDATA[\n";
+
+               # print element (entry, item)
+               my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
+               if ($format eq 'rss') {
+                       print "<item>\n" .
+                             "<title>" . esc_html($co{'title'}) . "</title>\n" .
+                             "<author>" . esc_html($co{'author'}) . "</author>\n" .
+                             "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
+                             "<guid isPermaLink=\"true\">$co_url</guid>\n" .
+                             "<link>$co_url</link>\n" .
+                             "<description>" . esc_html($co{'title'}) . "</description>\n" .
+                             "<content:encoded>" .
+                             "<![CDATA[\n";
+               } elsif ($format eq 'atom') {
+                       print "<entry>\n" .
+                             "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
+                             "<updated>$cd{'iso-8601'}</updated>\n" .
+                             "<author><name>" . esc_html($co{'author_name'}) . "</name></author>\n" .
+                             # use committer for contributor
+                             "<contributor><name>" . esc_html($co{'committer_name'}) . "</name></contributor>\n" .
+                             "<published>$cd{'iso-8601'}</published>\n" .
+                             "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
+                             "<id>$co_url</id>\n" .
+                             "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
+                             "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
+               }
                my $comment = $co{'comment'};
+               print "<pre>\n";
                foreach my $line (@$comment) {
-                       $line = to_utf8($line);
-                       print "$line<br/>\n";
+                       $line = esc_html($line);
+                       print "$line\n";
                }
-               print "<br/>\n";
-               foreach my $line (@difftree) {
-                       if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
-                               next;
+               print "</pre><ul>\n";
+               foreach my $difftree_line (@difftree) {
+                       my %difftree = parse_difftree_raw_line($difftree_line);
+                       next if !$difftree{'from_id'};
+
+                       my $file = $difftree{'file'} || $difftree{'to_file'};
+
+                       print "<li>" .
+                             "[" .
+                             $cgi->a({-href => href(-full=>1, action=>"blobdiff",
+                                                    hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
+                                                    hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
+                                                    file_name=>$file, file_parent=>$difftree{'from_file'}),
+                                     -title => "diff"}, 'D');
+                       if ($have_blame) {
+                               print $cgi->a({-href => href(-full=>1, action=>"blame",
+                                                            file_name=>$file, hash_base=>$commit),
+                                             -title => "blame"}, 'B');
+                       }
+                       # if this is not a feed of a file history
+                       if (!defined $file_name || $file_name ne $file) {
+                               print $cgi->a({-href => href(-full=>1, action=>"history",
+                                                            file_name=>$file, hash=>$commit),
+                                             -title => "history"}, 'H');
                        }
-                       my $file = esc_path(unquote($7));
-                       $file = to_utf8($file);
-                       print "$file<br/>\n";
+                       $file = esc_path($file);
+                       print "] ".
+                             "$file</li>\n";
                }
-               print "]]>\n" .
-                     "</content:encoded>\n" .
-                     "</item>\n";
+               if ($format eq 'rss') {
+                       print "</ul>]]>\n" .
+                             "</content:encoded>\n" .
+                             "</item>\n";
+               } elsif ($format eq 'atom') {
+                       print "</ul>\n</div>\n" .
+                             "</content>\n" .
+                             "</entry>\n";
+               }
+       }
+
+       # end of feed
+       if ($format eq 'rss') {
+               print "</channel>\n</rss>\n";
+       }       elsif ($format eq 'atom') {
+               print "</feed>\n";
        }
-       print "</channel></rss>";
+}
+
+sub git_rss {
+       git_feed('rss');
+}
+
+sub git_atom {
+       git_feed('atom');
 }
 
 sub git_opml {