X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=gitweb%2Fgitweb.perl;h=d2ddac8bf3bae0c2ead4583a3368db2d6bd9fe81;hb=3fcf06be5d02de15992d11482cfae82dc058261b;hp=3c6fd7ca47551eb808a40ca2cc7ed1690f19cc06;hpb=66f3b35fde42b9a235d8fd1c4d4a80f94bfd6a41;p=git.git

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 3c6fd7ca4..d2ddac8bf 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -120,7 +120,7 @@ our %feature = (
 	# To disable system wide have in $GITWEB_CONFIG
 	# $feature{'snapshot'}{'default'} = [undef];
 	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'blame'}{'override'} = 1;
+	# $feature{'snapshot'}{'override'} = 1;
 	# and in project config gitweb.snapshot = none|gzip|bzip2;
 	'snapshot' => {
 		'sub' => \&feature_snapshot,
@@ -425,6 +425,7 @@ my %actions = (
 	"history" => \&git_history,
 	"log" => \&git_log,
 	"rss" => \&git_rss,
+	"atom" => \&git_atom,
 	"search" => \&git_search,
 	"search_help" => \&git_search_help,
 	"shortlog" => \&git_shortlog,
@@ -433,6 +434,7 @@ my %actions = (
 	"tags" => \&git_tags,
 	"tree" => \&git_tree,
 	"snapshot" => \&git_snapshot,
+	"object" => \&git_object,
 	# those below don't need $project
 	"opml" => \&git_opml,
 	"project_list" => \&git_project_list,
@@ -459,7 +461,8 @@ exit;
 
 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.
@@ -576,20 +579,87 @@ sub esc_html ($;%) {
 
 	$str = to_utf8($str);
 	$str = escapeHTML($str);
-	$str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
-	$str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 	if ($opts{'-nbsp'}) {
 		$str =~ s/ / /g;
 	}
+	$str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 	return $str;
 }
 
+# quote control characters and escape filename to HTML
+sub esc_path {
+	my $str = shift;
+	my %opts = @_;
+
+	$str = to_utf8($str);
+	$str = escapeHTML($str);
+	if ($opts{'-nbsp'}) {
+		$str =~ s/ / /g;
+	}
+	$str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
+	return $str;
+}
+
+# Make control characters "printable", using character escape codes (CEC)
+sub quot_cec {
+	my $cntrl = shift;
+	my %es = ( # character escape codes, aka escape sequences
+		   "\t" => '\t',   # tab            (HT)
+		   "\n" => '\n',   # line feed      (LF)
+		   "\r" => '\r',   # carrige return (CR)
+		   "\f" => '\f',   # form feed      (FF)
+		   "\b" => '\b',   # backspace      (BS)
+		   "\a" => '\a',   # alarm (bell)   (BEL)
+		   "\e" => '\e',   # escape         (ESC)
+		   "\013" => '\v', # vertical tab   (VT)
+		   "\000" => '\0', # nul character  (NUL)
+		   );
+	my $chr = ( (exists $es{$cntrl})
+		    ? $es{$cntrl}
+		    : sprintf('\%03o', ord($cntrl)) );
+	return "<span class=\"cntrl\">$chr</span>";
+}
+
+# Alternatively use unicode control pictures codepoints,
+# Unicode "printable representation" (PR)
+sub quot_upr {
+	my $cntrl = shift;
+	my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
+	return "<span class=\"cntrl\">$chr</span>";
+}
+
 # git may return quoted and escaped filenames
 sub unquote {
 	my $str = shift;
+
+	sub unq {
+		my $seq = shift;
+		my %es = ( # character escape codes, aka escape sequences
+			't' => "\t",   # tab            (HT, TAB)
+			'n' => "\n",   # newline        (NL)
+			'r' => "\r",   # return         (CR)
+			'f' => "\f",   # form feed      (FF)
+			'b' => "\b",   # backspace      (BS)
+			'a' => "\a",   # alarm (bell)   (BEL)
+			'e' => "\e",   # escape         (ESC)
+			'v' => "\013", # vertical tab   (VT)
+		);
+
+		if ($seq =~ m/^[0-7]{1,3}$/) {
+			# octal char sequence
+			return chr(oct($seq));
+		} elsif (exists $es{$seq}) {
+			# C escape sequence, aka character escape code
+			return $es{$seq}
+		}
+		# quoted ordinary character
+		return $seq;
+	}
+
 	if ($str =~ m/^"(.*)"$/) {
+		# needs unquoting
 		$str = $1;
-		$str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
+		$str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 	}
 	return $str;
 }
@@ -723,24 +793,47 @@ sub file_type {
 	}
 }
 
+# convert file mode in octal to file type description string
+sub file_type_long {
+	my $mode = shift;
+
+	if ($mode !~ m/^[0-7]+$/) {
+		return $mode;
+	} else {
+		$mode = oct $mode;
+	}
+
+	if (S_ISDIR($mode & S_IFMT)) {
+		return "directory";
+	} elsif (S_ISLNK($mode)) {
+		return "symlink";
+	} elsif (S_ISREG($mode)) {
+		if ($mode & S_IXUSR) {
+			return "executable";
+		} else {
+			return "file";
+		};
+	} else {
+		return "unknown";
+	}
+}
+
+
 ## ----------------------------------------------------------------------
 ## functions returning short HTML fragments, or transforming HTML fragments
 ## which don't beling to other sections
 
-# format line of commit message or tag comment
+# format line of commit message.
 sub format_log_line_html {
 	my $line = shift;
 
-	$line = esc_html($line);
-	$line =~ s/ /&nbsp;/g;
-	if ($line =~ m/([0-9a-fA-F]{40})/) {
+	$line = esc_html($line, -nbsp=>1);
+	if ($line =~ m/([0-9a-fA-F]{8,40})/) {
 		my $hash_text = $1;
-		if (git_get_type($hash_text) eq "commit") {
-			my $link =
-				$cgi->a({-href => href(action=>"commit", hash=>$hash_text),
-				        -class => "text"}, $hash_text);
-			$line =~ s/$hash_text/$link/;
-		}
+		my $link =
+			$cgi->a({-href => href(action=>"object", hash=>$hash_text),
+			        -class => "text"}, $hash_text);
+		$line =~ s/$hash_text/$link/;
 	}
 	return $line;
 }
@@ -762,7 +855,8 @@ sub format_ref_marker {
 				$name = $ref;
 			}
 
-			$markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
+			$markers .= " <span class=\"$type\" title=\"$ref\">" .
+			            esc_html($name) . "</span>";
 		}
 	}
 
@@ -788,8 +882,10 @@ 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 = "";
 
@@ -805,6 +901,25 @@ 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";
 }
 
@@ -926,7 +1041,7 @@ sub git_get_projects_list {
 		$dir =~ s!/+$!!;
 		my $pfxlen = length("$dir");
 
-		my $check_forks = gitweb_check_feature('forks');
+		my ($check_forks) = gitweb_check_feature('forks');
 
 		File::Find::find({
 			follow_fast => 1, # follow symbolic links
@@ -962,6 +1077,17 @@ sub git_get_projects_list {
 			if (!defined $path) {
 				next;
 			}
+			if ($filter ne '') {
+				# looking for forks;
+				my $pfx = substr($path, 0, length($filter));
+				if ($pfx ne $filter) {
+					next;
+				}
+				my $sfx = substr($path, length($filter));
+				if ($sfx !~ /^\/.*\.git$/) {
+					next;
+				}
+			}
 			if (check_export_ok("$projectroot/$path")) {
 				my $pr = {
 					path => $path,
@@ -1013,8 +1139,9 @@ sub git_get_last_activity {
 
 	$git_dir = "$projectroot/$path";
 	open($fd, "-|", git_cmd(), 'for-each-ref',
-	     '--format=%(refname) %(committer)',
+	     '--format=%(committer)',
 	     '--sort=-committerdate',
+	     '--count=1',
 	     'refs/heads') or return;
 	my $most_recent = <$fd>;
 	close $fd or return;
@@ -1028,14 +1155,15 @@ sub git_get_last_activity {
 sub git_get_references {
 	my $type = shift || "";
 	my %refs;
-	# 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c	refs/tags/v2.6.11
-	# c39ae07f393806ccf406ef966e9a15afc43cc36a	refs/tags/v2.6.11^{}
-	open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
+	# 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
+	# c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
+	open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
+		($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
 		or return;
 
 	while (my $line = <$fd>) {
 		chomp $line;
-		if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
+		if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
 			if (defined $refs{$1}) {
 				push @{$refs{$1}}, $2;
 			} else {
@@ -1079,10 +1207,12 @@ 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);
@@ -1090,9 +1220,9 @@ 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;
 }
 
@@ -1165,8 +1295,9 @@ sub parse_commit {
 			$co{'author'} = $1;
 			$co{'author_epoch'} = $2;
 			$co{'author_tz'} = $3;
-			if ($co{'author'} =~ m/^([^<]+) </) {
-				$co{'author_name'} = $1;
+			if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
+				$co{'author_name'}  = $1;
+				$co{'author_email'} = $2;
 			} else {
 				$co{'author_name'} = $co{'author'};
 			}
@@ -1175,7 +1306,12 @@ sub parse_commit {
 			$co{'committer_epoch'} = $2;
 			$co{'committer_tz'} = $3;
 			$co{'committer_name'} = $co{'committer'};
-			$co{'committer_name'} =~ s/ <.*//;
+			if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
+				$co{'committer_name'}  = $1;
+				$co{'committer_email'} = $2;
+			} else {
+				$co{'committer_name'} = $co{'committer'};
+			}
 		}
 	}
 	if (!defined $co{'tree'}) {
@@ -1509,7 +1645,7 @@ sub git_header_html {
 		if (defined $action) {
 			$title .= "/$action";
 			if (defined $file_name) {
-				$title .= " - " . esc_html($file_name);
+				$title .= " - " . esc_path($file_name);
 				if ($action eq "tree" && $file_name !~ m|/$|) {
 					$title .= "/";
 				}
@@ -1553,14 +1689,17 @@ EOF
 		}
 	}
 	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",
 		       $site_name, href(project=>undef, action=>"opml"));
 	}
@@ -1626,7 +1765,9 @@ sub git_footer_html {
 			print "<div class=\"page_footer_text\">" . esc_html($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") . " ";
@@ -1780,20 +1921,20 @@ sub git_print_page_path {
 			$fullname .= ($fullname ? '/' : '') . $dir;
 			print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
 			                             hash_base=>$hb),
-			              -title => $fullname}, esc_html($dir));
+			              -title => esc_html($fullname)}, esc_path($dir));
 			print " / ";
 		}
 		if (defined $type && $type eq 'blob') {
 			print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
 			                             hash_base=>$hb),
-			              -title => $name}, esc_html($basename));
+			              -title => esc_html($name)}, esc_path($basename));
 		} elsif (defined $type && $type eq 'tree') {
 			print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
 			                             hash_base=>$hb),
-			              -title => $name}, esc_html($basename));
+			              -title => esc_html($name)}, esc_path($basename));
 			print " / ";
 		} else {
-			print esc_html($basename);
+			print esc_path($basename);
 		}
 	}
 	print "<br/></div>\n";
@@ -1849,12 +1990,73 @@ sub git_print_log ($;%) {
 	}
 }
 
+# return link target (what link points to)
+sub git_get_link_target {
+	my $hash = shift;
+	my $link_target;
+
+	# read link
+	open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
+		or return;
+	{
+		local $/;
+		$link_target = <$fd>;
+	}
+	close $fd
+		or return;
+
+	return $link_target;
+}
+
+# given link target, and the directory (basedir) the link is in,
+# return target of link relative to top directory (top tree);
+# return undef if it is not possible (including absolute links).
+sub normalize_link_target {
+	my ($link_target, $basedir, $hash_base) = @_;
+
+	# we can normalize symlink target only if $hash_base is provided
+	return unless $hash_base;
+
+	# absolute symlinks (beginning with '/') cannot be normalized
+	return if (substr($link_target, 0, 1) eq '/');
+
+	# normalize link target to path from top (root) tree (dir)
+	my $path;
+	if ($basedir) {
+		$path = $basedir . '/' . $link_target;
+	} else {
+		# we are in top (root) tree (dir)
+		$path = $link_target;
+	}
+
+	# remove //, /./, and /../
+	my @path_parts;
+	foreach my $part (split('/', $path)) {
+		# discard '.' and ''
+		next if (!$part || $part eq '.');
+		# handle '..'
+		if ($part eq '..') {
+			if (@path_parts) {
+				pop @path_parts;
+			} else {
+				# link leads outside repository (outside top dir)
+				return;
+			}
+		} else {
+			push @path_parts, $part;
+		}
+	}
+	$path = join('/', @path_parts);
+
+	return $path;
+}
+
 # print tree entry (row of git_tree), but without encompassing <tr> element
 sub git_print_tree_entry {
 	my ($t, $basedir, $hash_base, $have_blame) = @_;
 
 	my %base_key = ();
-	$base_key{hash_base} = $hash_base if defined $hash_base;
+	$base_key{'hash_base'} = $hash_base if defined $hash_base;
 
 	# The format of a table row is: mode list link.  Where mode is
 	# the mode of the entry, list is the name of the entry, an href,
@@ -1865,16 +2067,31 @@ sub git_print_tree_entry {
 		print "<td class=\"list\">" .
 			$cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
 			                       file_name=>"$basedir$t->{'name'}", %base_key),
-			        -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
+			        -class => "list"}, esc_path($t->{'name'}));
+		if (S_ISLNK(oct $t->{'mode'})) {
+			my $link_target = git_get_link_target($t->{'hash'});
+			if ($link_target) {
+				my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
+				if (defined $norm_target) {
+					print " -> " .
+					      $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
+					                             file_name=>$norm_target),
+					               -title => $norm_target}, esc_path($link_target));
+				} else {
+					print " -> " . esc_path($link_target);
+				}
+			}
+		}
+		print "</td>\n";
 		print "<td class=\"link\">";
 		print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-					     file_name=>"$basedir$t->{'name'}", %base_key)},
-			      "blob");
+		                             file_name=>"$basedir$t->{'name'}", %base_key)},
+		              "blob");
 		if ($have_blame) {
 			print " | " .
 			      $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
-				                           file_name=>"$basedir$t->{'name'}", %base_key)},
-				            "blame");
+			                             file_name=>"$basedir$t->{'name'}", %base_key)},
+			              "blame");
 		}
 		if (defined $hash_base) {
 			print " | " .
@@ -1892,12 +2109,12 @@ sub git_print_tree_entry {
 		print "<td class=\"list\">";
 		print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
 		                             file_name=>"$basedir$t->{'name'}", %base_key)},
-		              esc_html($t->{'name'}));
+		              esc_path($t->{'name'}));
 		print "</td>\n";
 		print "<td class=\"link\">";
 		print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-					     file_name=>"$basedir$t->{'name'}", %base_key)},
-			      "tree");
+		                             file_name=>"$basedir$t->{'name'}", %base_key)},
+		              "tree");
 		if (defined $hash_base) {
 			print " | " .
 			      $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
@@ -1913,7 +2130,7 @@ sub git_print_tree_entry {
 
 sub git_difftree_body {
 	my ($difftree, $hash, $parent) = @_;
-
+	my ($have_blame) = gitweb_check_feature('blame');
 	print "<div class=\"list_head\">\n";
 	if ($#{$difftree} > 10) {
 		print(($#{$difftree} + 1) . " files changed:\n");
@@ -1957,7 +2174,7 @@ sub git_difftree_body {
 			print "<td>";
 			print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
 			                             hash_base=>$hash, file_name=>$diff{'file'}),
-			              -class => "list"}, esc_html($diff{'file'}));
+			              -class => "list"}, esc_path($diff{'file'}));
 			print "</td>\n";
 			print "<td>$mode_chng</td>\n";
 			print "<td class=\"link\">";
@@ -1965,7 +2182,11 @@ 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
@@ -1973,7 +2194,7 @@ sub git_difftree_body {
 			print "<td>";
 			print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
 			                             hash_base=>$parent, file_name=>$diff{'file'}),
-			               -class => "list"}, esc_html($diff{'file'}));
+			               -class => "list"}, esc_path($diff{'file'}));
 			print "</td>\n";
 			print "<td>$mode_chng</td>\n";
 			print "<td class=\"link\">";
@@ -1985,10 +2206,12 @@ sub git_difftree_body {
 			}
 			print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
 			                             hash_base=>$parent, file_name=>$diff{'file'})},
-				      "blob") . " | ";
-			print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
-			                             file_name=>$diff{'file'})},
-			              "blame") . " | ";
+			              "blob") . " | ";
+			if ($have_blame) {
+				print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
+				                             file_name=>$diff{'file'})},
+				              "blame") . " | ";
+			}
 			print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
 			                             file_name=>$diff{'file'})},
 			              "history");
@@ -2013,7 +2236,7 @@ sub git_difftree_body {
 			print "<td>";
 			print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
 			                             hash_base=>$hash, file_name=>$diff{'file'}),
-			              -class => "list"}, esc_html($diff{'file'}));
+			              -class => "list"}, esc_path($diff{'file'}));
 			print "</td>\n";
 			print "<td>$mode_chnge</td>\n";
 			print "<td class=\"link\">";
@@ -2032,11 +2255,13 @@ sub git_difftree_body {
 				      " | ";
 			}
 			print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
-						     hash_base=>$hash, file_name=>$diff{'file'})},
-				      "blob") . " | ";
-			print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
-			                             file_name=>$diff{'file'})},
-			              "blame") . " | ";
+			                             hash_base=>$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 $cgi->a({-href => href(action=>"history", hash_base=>$hash,
 			                             file_name=>$diff{'file'})},
 			              "history");
@@ -2053,11 +2278,11 @@ sub git_difftree_body {
 			print "<td>" .
 			      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
 			                             hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
-			              -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
+			              -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
 			      "<td><span class=\"file_status $nstatus\">[$nstatus from " .
 			      $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
 			                             hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
-			              -class => "list"}, esc_html($diff{'from_file'})) .
+			              -class => "list"}, esc_path($diff{'from_file'})) .
 			      " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
 			      "<td class=\"link\">";
 			if ($action eq 'commitdiff') {
@@ -2074,14 +2299,16 @@ 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 $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
-			                             file_name=>$diff{'from_file'})},
-			              "blame") . " | ";
-			print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
-			                            file_name=>$diff{'from_file'})},
+			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 $cgi->a({-href => href(action=>"history", hash_base=>$hash,
+			                            file_name=>$diff{'to_file'})},
 			              "history");
 			print "</td>\n";
 
@@ -2095,114 +2322,182 @@ sub git_patchset_body {
 	my ($fd, $difftree, $hash, $hash_parent) = @_;
 
 	my $patch_idx = 0;
-	my $in_header = 0;
-	my $patch_found = 0;
+	my $patch_line;
 	my $diffinfo;
+	my (%from, %to);
+	my ($from_id, $to_id);
 
 	print "<div class=\"patchset\">\n";
 
-	LINE:
-	while (my $patch_line = <$fd>) {
+	# skip to first patch
+	while ($patch_line = <$fd>) {
 		chomp $patch_line;
 
-		if ($patch_line =~ m/^diff /) { # "git diff" header
-			# beginning of patch (in patchset)
-			if ($patch_found) {
-				# close previous patch
-				print "</div>\n"; # class="patch"
-			} else {
-				# first patch in patchset
-				$patch_found = 1;
+		last if ($patch_line =~ m/^diff /);
+	}
+
+ PATCH:
+	while ($patch_line) {
+		my @diff_header;
+
+		# git diff header
+		#assert($patch_line =~ m/^diff /) if DEBUG;
+		#assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
+		push @diff_header, $patch_line;
+
+		# extended diff header
+	EXTENDED_HEADER:
+		while ($patch_line = <$fd>) {
+			chomp $patch_line;
+
+			last EXTENDED_HEADER if ($patch_line =~ m/^--- /);
+
+			if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
+				$from_id = $1;
+				$to_id   = $2;
 			}
-			print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
 
+			push @diff_header, $patch_line;
+		}
+		#last PATCH unless $patch_line;
+		my $last_patch_line = $patch_line;
+
+		# check if current patch belong to current raw line
+		# and parse raw git-diff line if needed
+		if (defined $diffinfo &&
+		    $diffinfo->{'from_id'} eq $from_id &&
+		    $diffinfo->{'to_id'}   eq $to_id) {
+			# this is split patch
+			print "<div class=\"patch cont\">\n";
+		} else {
+			# advance raw git-diff output if needed
+			$patch_idx++ if defined $diffinfo;
+
+			# read and prepare patch information
 			if (ref($difftree->[$patch_idx]) eq "HASH") {
+				# pre-parsed (or generated by hand)
 				$diffinfo = $difftree->[$patch_idx];
 			} else {
 				$diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
 			}
-			$patch_idx++;
-
-			if ($diffinfo->{'status'} eq "A") { # added
-				print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-				                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
-				              $diffinfo->{'to_id'}) . " (new)" .
-				      "</div>\n"; # class="diff_info"
-
-			} elsif ($diffinfo->{'status'} eq "D") { # deleted
-				print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
-				                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
-				              $diffinfo->{'from_id'}) . " (deleted)" .
-				      "</div>\n"; # class="diff_info"
-
-			} elsif ($diffinfo->{'status'} eq "R" || # renamed
-			         $diffinfo->{'status'} eq "C" || # copied
-			         $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
-				print "<div class=\"diff_info\">" .
-				      file_type($diffinfo->{'from_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
-				                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
-				              $diffinfo->{'from_id'}) .
-				      " -> " .
-				      file_type($diffinfo->{'to_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-				                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
-				              $diffinfo->{'to_id'});
-				print "</div>\n"; # class="diff_info"
-
-			} else { # modified, mode changed, ...
-				print "<div class=\"diff_info\">" .
-				      file_type($diffinfo->{'from_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
-				                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
-				              $diffinfo->{'from_id'}) .
-				      " -> " .
-				      file_type($diffinfo->{'to_mode'}) . ":" .
-				      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-				                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
-				              $diffinfo->{'to_id'});
-				print "</div>\n"; # class="diff_info"
+			$from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
+			$to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
+			if ($diffinfo->{'status'} ne "A") { # not new (added) file
+				$from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
+				                     hash=>$diffinfo->{'from_id'},
+				                     file_name=>$from{'file'});
 			}
+			if ($diffinfo->{'status'} ne "D") { # not deleted file
+				$to{'href'} = href(action=>"blob", hash_base=>$hash,
+				                   hash=>$diffinfo->{'to_id'},
+				                   file_name=>$to{'file'});
+			}
+			# this is first patch for raw difftree line with $patch_idx index
+			# we index @$difftree array from 0, but number patches from 1
+			print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
+		}
 
-			#print "<div class=\"diff extended_header\">\n";
-			$in_header = 1;
-			next LINE;
-		} # start of patch in patchset
-
+		# print "git diff" header
+		$patch_line = shift @diff_header;
+		$patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
+		if ($from{'href'}) {
+			$patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
+			                       'a/' . esc_path($from{'file'}));
+		} else { # file was added
+			$patch_line .= 'a/' . esc_path($from{'file'});
+		}
+		$patch_line .= ' ';
+		if ($to{'href'}) {
+			$patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
+			                       'b/' . esc_path($to{'file'}));
+		} else { # file was deleted
+			$patch_line .= 'b/' . esc_path($to{'file'});
+		}
+		print "<div class=\"diff header\">$patch_line</div>\n";
+
+		# print extended diff header
+		print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
+	EXTENDED_HEADER:
+		foreach $patch_line (@diff_header) {
+			# match <path>
+			if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
+				$patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
+				                        esc_path($from{'file'}));
+			}
+			if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
+				$patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
+				                      esc_path($to{'file'}));
+			}
+			# match <mode>
+			if ($patch_line =~ m/\s(\d{6})$/) {
+				$patch_line .= '<span class="info"> (' .
+				               file_type_long($1) .
+				               ')</span>';
+			}
+			# match <hash>
+			if ($patch_line =~ m/^index/) {
+				my ($from_link, $to_link);
+				if ($from{'href'}) {
+					$from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
+					                     substr($diffinfo->{'from_id'},0,7));
+				} else {
+					$from_link = '0' x 7;
+				}
+				if ($to{'href'}) {
+					$to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
+					                   substr($diffinfo->{'to_id'},0,7));
+				} else {
+					$to_link = '0' x 7;
+				}
+				#affirm {
+				#	my ($from_hash, $to_hash) =
+				#		($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
+				#	my ($from_id, $to_id) =
+				#		($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
+				#	($from_hash eq $from_id) && ($to_hash eq $to_id);
+				#} if DEBUG;
+				my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
+				$patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
+			}
+			print $patch_line . "<br/>\n";
+		}
+		print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
+
+		# from-file/to-file diff header
+		$patch_line = $last_patch_line;
+		#assert($patch_line =~ m/^---/) if DEBUG;
+		if ($from{'href'}) {
+			$patch_line = '--- a/' .
+			              $cgi->a({-href=>$from{'href'}, -class=>"path"},
+			                      esc_path($from{'file'}));
+		}
+		print "<div class=\"diff from_file\">$patch_line</div>\n";
 
-		if ($in_header && $patch_line =~ m/^---/) {
-			#print "</div>\n"; # class="diff extended_header"
-			$in_header = 0;
+		$patch_line = <$fd>;
+		#last PATCH unless $patch_line;
+		chomp $patch_line;
 
-			my $file = $diffinfo->{'from_file'};
-			$file  ||= $diffinfo->{'file'};
-			$file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
-			                               hash=>$diffinfo->{'from_id'}, file_name=>$file),
-			                -class => "list"}, esc_html($file));
-			$patch_line =~ s|a/.*$|a/$file|g;
-			print "<div class=\"diff from_file\">$patch_line</div>\n";
+		#assert($patch_line =~ m/^+++/) if DEBUG;
+		if ($to{'href'}) {
+			$patch_line = '+++ b/' .
+			              $cgi->a({-href=>$to{'href'}, -class=>"path"},
+			                      esc_path($to{'file'}));
+		}
+		print "<div class=\"diff to_file\">$patch_line</div>\n";
 
-			$patch_line = <$fd>;
+		# the patch itself
+	LINE:
+		while ($patch_line = <$fd>) {
 			chomp $patch_line;
 
-			#$patch_line =~ m/^+++/;
-			$file    = $diffinfo->{'to_file'};
-			$file  ||= $diffinfo->{'file'};
-			$file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-			                               hash=>$diffinfo->{'to_id'}, file_name=>$file),
-			                -class => "list"}, esc_html($file));
-			$patch_line =~ s|b/.*|b/$file|g;
-			print "<div class=\"diff to_file\">$patch_line</div>\n";
+			next PATCH if ($patch_line =~ m/^diff /);
 
-			next LINE;
+			print format_diff_line($patch_line, \%from, \%to);
 		}
-		next LINE if $in_header;
 
-		print format_diff_line($patch_line);
+	} continue {
+		print "</div>\n"; # class="patch"
 	}
-	print "</div>\n" if $patch_found; # class="patch"
 
 	print "</div>\n"; # class="patchset"
 }
@@ -2212,7 +2507,7 @@ sub git_patchset_body {
 sub git_project_list_body {
 	my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
 
-	my $check_forks = gitweb_check_feature('forks');
+	my ($check_forks) = gitweb_check_feature('forks');
 
 	my @projects;
 	foreach my $pr (@$projlist) {
@@ -2223,6 +2518,7 @@ sub git_project_list_body {
 		($pr->{'age'}, $pr->{'age_string'}) = @aa;
 		if (!defined $pr->{'descr'}) {
 			my $descr = git_get_project_description($pr->{'path'}) || "";
+			$pr->{'descr_long'} = to_utf8($descr);
 			$pr->{'descr'} = chop_str($descr, 25, 5);
 		}
 		if (!defined $pr->{'owner'}) {
@@ -2230,8 +2526,14 @@ sub git_project_list_body {
 		}
 		if ($check_forks) {
 			my $pname = $pr->{'path'};
-			$pname =~ s/\.git$//;
-			$pr->{'forks'} = -d "$projectroot/$pname";
+			if (($pname =~ s/\.git$//) &&
+			    ($pname !~ /\/$/) &&
+			    (-d "$projectroot/$pname")) {
+				$pr->{'forks'} = "-d $projectroot/$pname";
+			}
+			else {
+				$pr->{'forks'} = 0;
+			}
 		}
 		push @projects, $pr;
 	}
@@ -2252,7 +2554,7 @@ sub git_project_list_body {
 		} else {
 			print "<th>" .
 			      $cgi->a({-href => href(project=>undef, order=>'project'),
-				       -class => "header"}, "Project") .
+			               -class => "header"}, "Project") .
 			      "</th>\n";
 		}
 		if ($order eq "descr") {
@@ -2261,7 +2563,7 @@ sub git_project_list_body {
 		} else {
 			print "<th>" .
 			      $cgi->a({-href => href(project=>undef, order=>'descr'),
-				       -class => "header"}, "Description") .
+			               -class => "header"}, "Description") .
 			      "</th>\n";
 		}
 		if ($order eq "owner") {
@@ -2270,7 +2572,7 @@ sub git_project_list_body {
 		} else {
 			print "<th>" .
 			      $cgi->a({-href => href(project=>undef, order=>'owner'),
-				       -class => "header"}, "Owner") .
+			               -class => "header"}, "Owner") .
 			      "</th>\n";
 		}
 		if ($order eq "age") {
@@ -2279,7 +2581,7 @@ sub git_project_list_body {
 		} else {
 			print "<th>" .
 			      $cgi->a({-href => href(project=>undef, order=>'age'),
-				       -class => "header"}, "Last Change") .
+			               -class => "header"}, "Last Change") .
 			      "</th>\n";
 		}
 		print "<th></th>\n" .
@@ -2297,19 +2599,22 @@ sub git_project_list_body {
 		if ($check_forks) {
 			print "<td>";
 			if ($pr->{'forks'}) {
+				print "<!-- $pr->{'forks'} -->\n";
 				print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
 			}
 			print "</td>\n";
 		}
 		print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
 		                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
-		      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
+		      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
+		                        -class => "list", -title => $pr->{'descr_long'}},
+		                        esc_html($pr->{'descr'})) . "</td>\n" .
 		      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 		print "<td class=\"". age_class($pr->{'age'}) . "\">" .
 		      $pr->{'age_string'} . "</td>\n" .
 		      "<td class=\"link\">" .
 		      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
-		      $cgi->a({-href => '/git-browser/by-commit.html?r='.$pr->{'path'}}, "graphiclog") . " | " .
+		      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
 		      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
 		      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
 		      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
@@ -2331,6 +2636,8 @@ sub git_shortlog_body {
 	# uses global variable $project
 	my ($revlist, $from, $to, $refs, $extra) = @_;
 
+	my $have_snapshot = gitweb_have_snapshot();
+
 	$from = 0 unless defined $from;
 	$to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
 
@@ -2358,7 +2665,7 @@ sub git_shortlog_body {
 		      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
 		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
 		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
-		if (gitweb_have_snapshot()) {
+		if ($have_snapshot) {
 			print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
 		}
 		print "</td>\n" .
@@ -2611,10 +2918,14 @@ sub git_summary {
 	my $owner = git_get_project_owner($project);
 
 	my $refs = git_get_references();
-	my @taglist  = git_get_tags_list(15);
-	my @headlist = git_get_heads_list(15);
+	# These get_*_list functions return one more to allow us to see if
+	# there are more ...
+	my @taglist  = git_get_tags_list(16);
+	my @headlist = git_get_heads_list(16);
 	my @forklist;
-	if (gitweb_check_feature('forks')) {
+	my ($check_forks) = gitweb_check_feature('forks');
+
+	if ($check_forks) {
 		@forklist = git_get_projects_list($project);
 	}
 
@@ -2646,6 +2957,8 @@ sub git_summary {
 		}
 	}
 
+	# we need to request one more than 16 (0..15) to check if
+	# those 16 are all
 	open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
 		git_get_head_hash($project), "--"
 		or die_error(undef, "Open git-rev-list failed");
@@ -2653,23 +2966,27 @@ sub git_summary {
 	close $fd;
 	git_print_header_div('shortlog');
 	git_shortlog_body(\@revlist, 0, 15, $refs,
+	                  $#revlist <=  15 ? undef :
 	                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
 
 	if (@taglist) {
 		git_print_header_div('tags');
 		git_tags_body(\@taglist, 0, 15,
+		              $#taglist <=  15 ? undef :
 		              $cgi->a({-href => href(action=>"tags")}, "..."));
 	}
 
 	if (@headlist) {
 		git_print_header_div('heads');
 		git_heads_body(\@headlist, $head, 0, 15,
+		               $#headlist <= 15 ? undef :
 		               $cgi->a({-href => href(action=>"heads")}, "..."));
 	}
 
 	if (@forklist) {
 		git_print_header_div('forks');
 		git_project_list_body(\@forklist, undef, 0, 15,
+		                      $#forklist <= 15 ? undef :
 		                      $cgi->a({-href => href(action=>"forks")}, "..."),
 				      'noheader');
 	}
@@ -2704,7 +3021,8 @@ sub git_tag {
 	print "<div class=\"page_body\">";
 	my $comment = $tag{'comment'};
 	foreach my $line (@$comment) {
-		print esc_html($line) . "<br/>\n";
+		chomp $line;
+		print esc_html($line, -nbsp=>1) . "<br/>\n";
 	}
 	print "</div>\n";
 	git_footer_html();
@@ -2773,6 +3091,7 @@ HTML
 			}
 		}
 		my $data = $_;
+		chomp $data;
 		my $rev = substr($full_rev, 0, 8);
 		my $author = $meta->{'author'};
 		my %date = parse_date($meta->{'author-time'},
@@ -2997,10 +3316,13 @@ sub git_blob {
 	open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
 		or die_error(undef, "Couldn't cat $file_name, $hash");
 	my $mimetype = blob_mimetype($fd, $file_name);
-	if ($mimetype !~ m/^text\//) {
+	if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
 		close $fd;
 		return git_blob_plain($mimetype);
 	}
+	# we can have blame only for text/* mimetype
+	$have_blame &&= ($mimetype =~ m!^text/!);
+
 	git_header_html(undef, $expires);
 	my $formats_nav = '';
 	if (defined $hash_base && (my %co = parse_commit($hash_base))) {
@@ -3037,13 +3359,24 @@ sub git_blob {
 	}
 	git_print_page_path($file_name, "blob", $hash_base);
 	print "<div class=\"page_body\">\n";
-	my $nr;
-	while (my $line = <$fd>) {
-		chomp $line;
-		$nr++;
-		$line = untabify($line);
-		printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
-		       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
+	if ($mimetype =~ m!^text/!) {
+		my $nr;
+		while (my $line = <$fd>) {
+			chomp $line;
+			$nr++;
+			$line = untabify($line);
+			printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
+			       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
+		}
+	} elsif ($mimetype =~ m!^image/!) {
+		print qq!<img type="$mimetype"!;
+		if ($file_name) {
+			print qq! alt="$file_name" title="$file_name"!;
+		}
+		print qq! src="! .
+		      href(action=>"blob_plain", hash=>$hash,
+		           hash_base=>$hash_base, file_name=>$file_name) .
+		      qq!" />\n!;
 	}
 	close $fd
 		or print "Reading blob failed.\n";
@@ -3168,8 +3501,7 @@ sub git_snapshot {
 	my $filename = basename($project) . "-$hash.tar.$suffix";
 
 	print $cgi->header(
-		-type => 'application/x-tar',
-		-content_encoding => $ctype,
+		-type => "application/$ctype",
 		-content_disposition => 'inline; filename="' . "$filename" . '"',
 		-status => '200 OK');
 
@@ -3243,6 +3575,7 @@ sub git_log {
 }
 
 sub git_commit {
+	$hash ||= $hash_base || "HEAD";
 	my %co = parse_commit($hash);
 	if (!%co) {
 		die_error(undef, "Unknown commit object");
@@ -3250,15 +3583,46 @@ sub git_commit {
 	my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
 	my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
 
-	my $parent = $co{'parent'};
+	my $parent  = $co{'parent'};
+	my $parents = $co{'parents'}; # listref
+
+	# we need to prepare $formats_nav before any parameter munging
+	my $formats_nav;
+	if (!defined $parent) {
+		# --root commitdiff
+		$formats_nav .= '(initial)';
+	} elsif (@$parents == 1) {
+		# single parent commit
+		$formats_nav .=
+			'(parent: ' .
+			$cgi->a({-href => href(action=>"commit",
+			                       hash=>$parent)},
+			        esc_html(substr($parent, 0, 7))) .
+			')';
+	} else {
+		# merge commit
+		$formats_nav .=
+			'(merge: ' .
+			join(' ', map {
+				$cgi->a({-href => href(action=>"commitdiff",
+				                       hash=>$_)},
+				        esc_html(substr($_, 0, 7)));
+			} @$parents ) .
+			')';
+	}
+
 	if (!defined $parent) {
 		$parent = "--root";
 	}
-	open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
-		@diff_opts, $parent, $hash, "--"
-		or die_error(undef, "Open git-diff-tree failed");
-	my @difftree = map { chomp; $_ } <$fd>;
-	close $fd or die_error(undef, "Reading git-diff-tree failed");
+	my @difftree;
+	if (@$parents <= 1) {
+		# difftree output is not printed for merges
+		open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
+			@diff_opts, $parent, $hash, "--"
+				or die_error(undef, "Open git-diff-tree failed");
+		@difftree = map { chomp; $_ } <$fd>;
+		close $fd or die_error(undef, "Reading git-diff-tree failed");
+	}
 
 	# non-textual hash id's can be cached
 	my $expires;
@@ -3270,16 +3634,10 @@ sub git_commit {
 
 	my $have_snapshot = gitweb_have_snapshot();
 
-	my @views_nav = ();
-	if (defined $file_name && defined $co{'parent'}) {
-		push @views_nav,
-			$cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
-			        "blame");
-	}
 	git_header_html(undef, $expires);
 	git_print_page_nav('commit', '',
 	                   $hash, $co{'tree'}, $hash,
-	                   join (' | ', @views_nav));
+	                   $formats_nav);
 
 	if (defined $co{'parent'}) {
 		git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
@@ -3320,7 +3678,7 @@ sub git_commit {
 	}
 	print "</td>" .
 	      "</tr>\n";
-	my $parents = $co{'parents'};
+
 	foreach my $par (@$parents) {
 		print "<tr>" .
 		      "<td>parent</td>" .
@@ -3342,11 +3700,61 @@ sub git_commit {
 	git_print_log($co{'comment'});
 	print "</div>\n";
 
-	git_difftree_body(\@difftree, $hash, $parent);
+	if (@$parents <= 1) {
+		# do not output difftree/whatchanged for merges
+		git_difftree_body(\@difftree, $hash, $parent);
+	}
 
 	git_footer_html();
 }
 
+sub git_object {
+	# object is defined by:
+	# - hash or hash_base alone
+	# - hash_base and file_name
+	my $type;
+
+	# - hash or hash_base alone
+	if ($hash || ($hash_base && !defined $file_name)) {
+		my $object_id = $hash || $hash_base;
+
+		my $git_command = git_cmd_str();
+		open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
+			or die_error('404 Not Found', "Object does not exist");
+		$type = <$fd>;
+		chomp $type;
+		close $fd
+			or die_error('404 Not Found', "Object does not exist");
+
+	# - hash_base and file_name
+	} elsif ($hash_base && defined $file_name) {
+		$file_name =~ s,/+$,,;
+
+		system(git_cmd(), "cat-file", '-e', $hash_base) == 0
+			or die_error('404 Not Found', "Base object does not exist");
+
+		# here errors should not hapen
+		open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
+			or die_error(undef, "Open git-ls-tree failed");
+		my $line = <$fd>;
+		close $fd;
+
+		#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
+		unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
+			die_error('404 Not Found', "File or directory for given base does not exist");
+		}
+		$type = $2;
+		$hash = $3;
+	} else {
+		die_error('404 Not Found', "Not enough information to find object");
+	}
+
+	print $cgi->redirect(-uri => href(action=>$type, -full=>1,
+	                                  hash=>$hash, hash_base=>$hash_base,
+	                                  file_name=>$file_name),
+	                     -status => '302 Found');
+}
+
 sub git_blobdiff {
 	my $format = shift || 'html';
 
@@ -3501,8 +3909,8 @@ sub git_blobdiff {
 
 	} else {
 		while (my $line = <$fd>) {
-			$line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
-			$line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
+			$line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
+			$line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
 
 			print $line;
 
@@ -3520,6 +3928,7 @@ 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");
@@ -3582,7 +3991,8 @@ sub git_commitdiff {
 			$hash_parent, $hash, "--"
 			or die_error(undef, "Open git-diff-tree failed");
 
-		while (chomp(my $line = <$fd>)) {
+		while (my $line = <$fd>) {
+			chomp $line;
 			# empty line ends raw part of diff-tree output
 			last unless $line;
 			push @difftree, $line;
@@ -3859,7 +4269,7 @@ sub git_search {
 						print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
 						                             hash=>$set{'id'}, file_name=>$set{'file'}),
 						              -class => "list"},
-						              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
+						              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
 						      "<br/>\n";
 					}
 					print "</td>\n" .
@@ -3939,70 +4349,237 @@ 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{'author_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) . "</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($commit);
 		# we read 150, we always show 30 and the ones more recent than 48 hours
-		if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
+		if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
 			last;
 		}
-		my %cd = parse_date($co{'committer_epoch'});
+		my %cd = parse_date($co{'author_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>\n" .
+			      "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
+			if ($co{'author_email'}) {
+				print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
+			}
+			print "</author>\n" .
+			      # use committer for contributor
+			      "<contributor>\n" .
+			      "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
+			if ($co{'committer_email'}) {
+				print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
+			}
+			print "</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_html(unquote($7));
-			$file = to_utf8($file);
-			print "$file<br/>\n";
+			$file = esc_path($file);
+			print "] ".
+			      "$file</li>\n";
+		}
+		if ($format eq 'rss') {
+			print "</ul>]]>\n" .
+			      "</content:encoded>\n" .
+			      "</item>\n";
+		} elsif ($format eq 'atom') {
+			print "</ul>\n</div>\n" .
+			      "</content>\n" .
+			      "</entry>\n";
 		}
-		print "]]>\n" .
-		      "</content:encoded>\n" .
-		      "</item>\n";
 	}
-	print "</channel></rss>";
+
+	# end of feed
+	if ($format eq 'rss') {
+		print "</channel>\n</rss>\n";
+	}	elsif ($format eq 'atom') {
+		print "</feed>\n";
+	}
+}
+
+sub git_rss {
+	git_feed('rss');
+}
+
+sub git_atom {
+	git_feed('atom');
 }
 
 sub git_opml {