gitweb: Improve comments about gitweb features configuration

[Gitweb] / gitweb.perl

diff --git a/gitweb.perl b/gitweb.perl
index b6a19eb9b0b29f9ee02f116c80a3145ebd07c9fd0d43508ba2b871fc245441d8..973b0a40edd16ca600aeb73be2238781633b25916123a266bc10a07819a5fda0 100755 (executable)
--- a/gitweb.perl
+++ b/gitweb.perl
@@ -15,6 +15,7 @@ use CGI::Carp qw(fatalsToBrowser);
 use Encode;
 use Fcntl ':mode';
 use File::Find qw();
 use Encode;
 use Fcntl ':mode';
 use File::Find qw();

+use File::Basename qw(basename);

 binmode STDOUT, ':utf8';
 
 our $cgi = new CGI;
 binmode STDOUT, ':utf8';
 
 our $cgi = new CGI;


@@ -30,11 +31,8 @@ our $GIT = "++GIT_BINDIR++/git";
 #our $projectroot = "/pub/scm";
 our $projectroot = "++GITWEB_PROJECTROOT++";
 
 #our $projectroot = "/pub/scm";
 our $projectroot = "++GITWEB_PROJECTROOT++";
 

-# location for temporary files needed for diffs
-our $git_temp = "/tmp/gitweb";
-

 # target of the home link on top of all pages
 # target of the home link on top of all pages

-our $home_link = $my_uri;
+our $home_link = $my_uri || "/";

 
 # string of the home link on top of all pages
 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
 
 # string of the home link on top of all pages
 our $home_link_str = "++GITWEB_HOME_LINK_STR++";


@@ -66,6 +64,83 @@ our $default_text_plain_charset  = undef;
 # (relative to the current git repository)
 our $mimetypes_file = undef;
 
 # (relative to the current git repository)
 our $mimetypes_file = undef;
 

+# You define site-wide feature defaults here; override them with
+# $GITWEB_CONFIG as necessary.
+our %feature = (
+       # feature => {
+       #       'sub' => feature-sub (subroutine),
+       #       'override' => allow-override (boolean),
+       #       'default' => [ default options...] (array reference)}
+       #
+       # if feature is overridable (it means that allow-override has true value,
+       # then feature-sub will be called with default options as parameters;
+       # return value of feature-sub indicates if to enable specified feature
+       #
+       # use gitweb_check_feature(<feature>) to check if <feature> is enabled
+
+       'blame' => {
+               'sub' => \&feature_blame,
+               'override' => 0,
+               'default' => [0]},
+
+       'snapshot' => {
+               'sub' => \&feature_snapshot,
+               'override' => 0,
+               #         => [content-encoding, suffix, program]
+               'default' => ['x-gzip', 'gz', 'gzip']},
+);
+
+sub gitweb_check_feature {
+       my ($name) = @_;
+       return undef unless exists $feature{$name};
+       my ($sub, $override, @defaults) = (
+               $feature{$name}{'sub'},
+               $feature{$name}{'override'},
+               @{$feature{$name}{'default'}});
+       if (!$override) { return @defaults; }
+       return $sub->(@defaults);
+}
+
+# To enable system wide have in $GITWEB_CONFIG
+# $feature{'blame'}{'default'} = [1];
+# To have project specific config enable override in $GITWEB_CONFIG
+# $feature{'blame'}{'override'} = 1;
+# and in project config gitweb.blame = 0|1;
+
+sub feature_blame {
+       my ($val) = git_get_project_config('blame', '--bool');
+
+       if ($val eq 'true') {
+               return 1;
+       } elsif ($val eq 'false') {
+               return 0;
+       }
+
+       return $_[0];
+}
+
+# To disable system wide have in $GITWEB_CONFIG
+# $feature{'snapshot'}{'default'} = [undef];
+# To have project specific config enable override in $GITWEB_CONFIG
+# $feature{'blame'}{'override'} = 1;
+# and in project config  gitweb.snapshot = none|gzip|bzip2
+
+sub feature_snapshot {
+       my ($ctype, $suffix, $command) = @_;
+
+       my ($val) = git_get_project_config('snapshot');
+
+       if ($val eq 'gzip') {
+               return ('x-gzip', 'gz', 'gzip');
+       } elsif ($val eq 'bzip2') {
+               return ('x-bzip2', 'bz2', 'bzip2');
+       } elsif ($val eq 'none') {
+               return ();
+       }
+
+       return ($ctype, $suffix, $command);
+}
+

 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 
 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 


@@ -73,9 +148,6 @@ require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 
 $projects_list ||= $projectroot;
 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 
 $projects_list ||= $projectroot;

-if (! -d $git_temp) {
-       mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
-}

 
 # ======================================================================
 # input validation and dispatch
 
 # ======================================================================
 # input validation and dispatch


@@ -84,19 +156,15 @@ if (defined $action) {
        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
                die_error(undef, "Invalid action parameter");
        }
        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
                die_error(undef, "Invalid action parameter");
        }

-       # action which does not check rest of parameters
-       if ($action eq "opml") {
-               git_opml();
-               exit;
-       }

 }
 
 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 if (defined $project) {
        $project =~ s|^/||;
        $project =~ s|/$||;
 }
 
 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 if (defined $project) {
        $project =~ s|^/||;
        $project =~ s|/$||;

+       $project = undef unless $project;

 }
 }

-if (defined $project && $project) {
+if (defined $project) {

        if (!validate_input($project)) {
                die_error(undef, "Invalid project parameter");
        }
        if (!validate_input($project)) {
                die_error(undef, "Invalid project parameter");
        }


@@ -107,9 +175,6 @@ if (defined $project && $project) {
                die_error(undef, "No such project");
        }
        $ENV{'GIT_DIR'} = "$projectroot/$project";
                die_error(undef, "No such project");
        }
        $ENV{'GIT_DIR'} = "$projectroot/$project";

-} else {
-       git_project_list();
-       exit;

 }
 
 our $file_name = $cgi->param('f');
 }
 
 our $file_name = $cgi->param('f');


@@ -119,6 +184,13 @@ if (defined $file_name) {
        }
 }
 
        }
 }
 

+our $file_parent = $cgi->param('fp');
+if (defined $file_parent) {
+       if (!validate_input($file_parent)) {
+               die_error(undef, "Invalid file parent parameter");
+       }
+}
+

 our $hash = $cgi->param('h');
 if (defined $hash) {
        if (!validate_input($hash)) {
 our $hash = $cgi->param('h');
 if (defined $hash) {
        if (!validate_input($hash)) {


@@ -140,6 +212,13 @@ if (defined $hash_base) {
        }
 }
 
        }
 }
 

+our $hash_parent_base = $cgi->param('hpb');
+if (defined $hash_parent_base) {
+       if (!validate_input($hash_parent_base)) {
+               die_error(undef, "Invalid hash parent base parameter");
+       }
+}
+

 our $page = $cgi->param('pg');
 if (defined $page) {
        if ($page =~ m/[^0-9]$/) {
 our $page = $cgi->param('pg');
 if (defined $page) {
        if ($page =~ m/[^0-9]$/) {


@@ -175,9 +254,17 @@ my %actions = (
        "tag" => \&git_tag,
        "tags" => \&git_tags,
        "tree" => \&git_tree,
        "tag" => \&git_tag,
        "tags" => \&git_tags,
        "tree" => \&git_tree,

+       "snapshot" => \&git_snapshot,
+       # those below don't need $project
+       "opml" => \&git_opml,
+       "project_list" => \&git_project_list,

 );
 
 );
 

-$action = 'summary' if (!defined($action));
+if (defined $project) {
+       $action ||= 'summary';
+} else {
+       $action ||= 'project_list';
+}

 if (!defined($actions{$action})) {
        die_error(undef, "Unknown action");
 }
 if (!defined($actions{$action})) {
        die_error(undef, "Unknown action");
 }


@@ -188,26 +275,32 @@ exit;
 ## action links
 
 sub href(%) {
 ## action links
 
 sub href(%) {

-       my %mapping = (
-               action => "a",
+       my %params = @_;
+
+       my @mapping = (

                project => "p",
                project => "p",

+               action => "a",

                file_name => "f",
                file_name => "f",

+               file_parent => "fp",

                hash => "h",
                hash_parent => "hp",
                hash_base => "hb",
                hash => "h",
                hash_parent => "hp",
                hash_base => "hb",

+               hash_parent_base => "hpb",

                page => "pg",
                searchtext => "s",
        );
                page => "pg",
                searchtext => "s",
        );

+       my %mapping = @mapping;

 
 

-       my %params = @_;

        $params{"project"} ||= $project;
 
        $params{"project"} ||= $project;
 

-       my $href = "$my_uri?";
-       $href .= esc_param( join(";",
-               map { "$mapping{$_}=$params{$_}" } keys %params
-       ) );
-
-       return $href;
+       my @result = ();
+       for (my $i = 0; $i < @mapping; $i += 2) {
+               my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
+               if (defined $params{$name}) {
+                       push @result, $symbol . "=" . esc_param($params{$name});
+               }
+       }
+       return "$my_uri?" . join(';', @result);

 }
 
 
 }
 
 


@@ -362,7 +455,13 @@ sub mode_str {
 
 # convert file mode in octal to file type string
 sub file_type {
 
 # convert file mode in octal to file type string
 sub file_type {

-       my $mode = oct shift;
+       my $mode = shift;
+
+       if ($mode !~ m/^[0-7]+$/) {
+               return $mode;
+       } else {
+               $mode = oct $mode;
+       }

 
        if (S_ISDIR($mode & S_IFMT)) {
                return "directory";
 
        if (S_ISDIR($mode & S_IFMT)) {
                return "directory";


@@ -388,7 +487,9 @@ sub format_log_line_html {
        if ($line =~ m/([0-9a-fA-F]{40})/) {
                my $hash_text = $1;
                if (git_get_type($hash_text) eq "commit") {
        if ($line =~ m/([0-9a-fA-F]{40})/) {
                my $hash_text = $1;
                if (git_get_type($hash_text) eq "commit") {

-                       my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
+                       my $link =
+                               $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
+                                       -class => "text"}, $hash_text);

                        $line =~ s/$hash_text/$link/;
                }
        }
                        $line =~ s/$hash_text/$link/;
                }
        }


@@ -429,15 +530,35 @@ sub format_subject_html {
        $extra = '' unless defined($extra);
 
        if (length($short) < length($long)) {
        $extra = '' unless defined($extra);
 
        if (length($short) < length($long)) {

-               return $cgi->a({-href => $href, -class => "list",
+               return $cgi->a({-href => $href, -class => "list subject",

                                -title => $long},
                       esc_html($short) . $extra);
        } else {
                                -title => $long},
                       esc_html($short) . $extra);
        } else {

-               return $cgi->a({-href => $href, -class => "list"},
+               return $cgi->a({-href => $href, -class => "list subject"},

                       esc_html($long)  . $extra);
        }
 }
 
                       esc_html($long)  . $extra);
        }
 }
 

+sub format_diff_line {
+       my $line = shift;
+       my $char = substr($line, 0, 1);
+       my $diff_class = "";
+
+       chomp $line;
+
+       if ($char eq '+') {
+               $diff_class = " add";
+       } elsif ($char eq "-") {
+               $diff_class = " rem";
+       } elsif ($char eq "@") {
+               $diff_class = " chunk_header";
+       } elsif ($char eq "\\") {
+               $diff_class = " incomplete";
+       }
+       $line = untabify($line);
+       return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
+}
+

 ## ----------------------------------------------------------------------
 ## git utility subroutines, invoking git commands
 
 ## ----------------------------------------------------------------------
 ## git utility subroutines, invoking git commands
 


@@ -472,24 +593,21 @@ sub git_get_type {
 }
 
 sub git_get_project_config {
 }
 
 sub git_get_project_config {

-       my $key = shift;
+       my ($key, $type) = @_;

 
        return unless ($key);
        $key =~ s/^gitweb\.//;
        return if ($key =~ m/\W/);
 
 
        return unless ($key);
        $key =~ s/^gitweb\.//;
        return if ($key =~ m/\W/);
 

-       my $val = qx($GIT repo-config --get gitweb.$key);
+       my @x = ($GIT, 'repo-config');
+       if (defined $type) { push @x, $type; }
+       push @x, "--get";
+       push @x, "gitweb.$key";
+       my $val = qx(@x);
+       chomp $val;

        return ($val);
 }
 
        return ($val);
 }
 

-sub git_get_project_config_bool {
-       my $val = git_get_project_config (@_);
-       if ($val and $val =~ m/true|yes|on/) {
-               return (1);
-       }
-       return; # implicit false
-}
-

 # get hash of given path at given ref
 sub git_get_hash_by_path {
        my $base = shift;
 # get hash of given path at given ref
 sub git_get_hash_by_path {
        my $base = shift;


@@ -507,6 +625,26 @@ sub git_get_hash_by_path {
        return $3;
 }
 
        return $3;
 }
 

+# converts symbolic name to hash
+sub git_to_hash {
+       my @params = @_;
+       return undef unless @params;
+
+       open my $fd, "-|", $GIT, "rev-parse", @params
+               or return undef;
+       my @hashes = map { chomp; $_ } <$fd>;
+       close $fd;
+
+       if (wantarray) {
+               return @hashes;
+       } elsif (scalar(@hashes) == 1) {
+               # single hash
+               return $hashes[0];
+       } else {
+               return \@hashes;
+       }
+}
+

 ## ......................................................................
 ## git utility functions, directly accessing git repository
 
 ## ......................................................................
 ## git utility functions, directly accessing git repository
 


@@ -533,6 +671,16 @@ sub git_get_project_description {
        return $descr;
 }
 
        return $descr;
 }
 

+sub git_get_project_url_list {
+       my $path = shift;
+
+       open my $fd, "$projectroot/$path/cloneurl" or return undef;
+       my @git_project_url_list = map { chomp; $_ } <$fd>;
+       close $fd;
+
+       return wantarray ? @git_project_url_list : \@git_project_url_list;
+}
+

 sub git_get_projects_list {
        my @list;
 
 sub git_get_projects_list {
        my @list;
 


@@ -636,6 +784,73 @@ sub git_get_references {
        return \%refs;
 }
 
        return \%refs;
 }
 

+sub git_get_following_references {
+       my $hash = shift || return undef;
+       my $type = shift;
+       my $base = shift || $hash_base || "HEAD";
+
+       my $refs = git_get_references($type);
+       open my $fd, "-|", $GIT, "rev-list", $base
+               or return undef;
+       my @commits = map { chomp; $_ } <$fd>;
+       close $fd
+               or return undef;
+
+       my @reflist;
+       my $lastref;
+
+       foreach my $commit (@commits) {
+               foreach my $ref (@{$refs->{$commit}}) {
+                       $lastref = $ref;
+                       push @reflist, $lastref;
+               }
+               if ($commit eq $hash) {
+                       last;
+               }
+       }
+
+       return wantarray ? @reflist : $lastref;
+}
+
+sub git_get_preceding_references {
+       my $hash = shift || return undef;
+       my $type = shift;
+
+       my $refs = git_get_references($type);
+       open my $fd, "-|", $GIT, "rev-list", $hash
+               or return undef;
+       my @commits = map { chomp; $_ } <$fd>;
+       close $fd
+               or return undef;
+
+       my @reflist;
+
+       foreach my $commit (@commits) {
+               foreach my $ref (@{$refs->{$commit}}) {
+                       return $ref unless wantarray;
+                       push @reflist, $ref;
+               }
+       }
+
+       return @reflist;
+}
+
+sub git_get_rev_name_tags {
+       my $hash = shift || return undef;
+
+       open my $fd, "-|", $GIT, "name-rev", "--tags", $hash
+               or return;
+       my $name_rev = <$fd>;
+       close $fd;
+
+       if ($name_rev =~ m|^$hash tags/(.*)$|) {
+               return $1;
+       } else {
+               # catches also '$hash undefined' output
+               return undef;
+       }
+}
+

 ## ----------------------------------------------------------------------
 ## parse to hash functions
 
 ## ----------------------------------------------------------------------
 ## parse to hash functions
 


@@ -652,8 +867,10 @@ sub parse_date {
        $date{'mday'} = $mday;
        $date{'day'} = $days[$wday];
        $date{'month'} = $months[$mon];
        $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{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
+       $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;

 
        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 
        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
        my $local = $epoch + ((int $1 + ($2/60)) * 3600);


@@ -710,7 +927,8 @@ sub parse_commit {
                @commit_lines = @$commit_text;
        } else {
                $/ = "\0";
                @commit_lines = @$commit_text;
        } else {
                $/ = "\0";

-               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
+               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id
+                       or return;

                @commit_lines = split '\n', <$fd>;
                close $fd or return;
                $/ = "\n";
                @commit_lines = split '\n', <$fd>;
                close $fd or return;
                $/ = "\n";


@@ -836,6 +1054,34 @@ sub parse_ref {
        return %ref_item;
 }
 
        return %ref_item;
 }
 

+# parse line of git-diff-tree "raw" output
+sub parse_difftree_raw_line {
+       my $line = shift;
+       my %res;
+
+       # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
+       # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
+       if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
+               $res{'from_mode'} = $1;
+               $res{'to_mode'} = $2;
+               $res{'from_id'} = $3;
+               $res{'to_id'} = $4;
+               $res{'status'} = $5;
+               $res{'similarity'} = $6;
+               if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
+                       ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
+               } else {
+                       $res{'file'} = unquote($7);
+               }
+       }
+       # 'c512b523472485aef4fff9e57b229d9d243c967f'
+       #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
+       #       $res{'commit'} = $1;
+       #}
+
+       return wantarray ? %res : \%res;
+}
+

 ## ......................................................................
 ## parse to array of hashes functions
 
 ## ......................................................................
 ## parse to array of hashes functions
 


@@ -976,20 +1222,24 @@ sub git_header_html {
        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
        # we have to do this because MSIE sometimes globs '*/*', pretending to
        # support xhtml+xml but choking when it gets what it asked for.
        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
        # we have to do this because MSIE sometimes globs '*/*', pretending to
        # support xhtml+xml but choking when it gets what it asked for.

-       if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
+       if (defined $cgi->http('HTTP_ACCEPT') &&
+           $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
+           $cgi->Accept('application/xhtml+xml') != 0) {

                $content_type = 'application/xhtml+xml';
        } else {
                $content_type = 'text/html';
        }
                $content_type = 'application/xhtml+xml';
        } else {
                $content_type = 'text/html';
        }

-       print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
+       print $cgi->header(-type=>$content_type, -charset => 'utf-8',
+                          -status=> $status, -expires => $expires);

        print <<EOF;
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
        print <<EOF;
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">

-<!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
+<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->

 <!-- git core binaries version $git_version -->
 <head>
 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
 <!-- git core binaries version $git_version -->
 <head>
 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>

+<meta name="generator" content="gitweb/$version git/$git_version"/>

 <meta name="robots" content="index, nofollow"/>
 <title>$title</title>
 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
 <meta name="robots" content="index, nofollow"/>
 <title>$title</title>
 <link rel="stylesheet" type="text/css" href="$stylesheet"/>


@@ -1047,7 +1297,7 @@ sub git_footer_html {
                }
                print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
        } else {
                }
                print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
        } else {

-               print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
+               print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";

        }
        print "</div>\n" .
              "</body>\n" .
        }
        print "</div>\n" .
              "</body>\n" .


@@ -1059,11 +1309,13 @@ sub die_error {
        my $error = shift || "Malformed query, file missing or permission denied";
 
        git_header_html($status);
        my $error = shift || "Malformed query, file missing or permission denied";
 
        git_header_html($status);

-       print "<div class=\"page_body\">\n" .
-             "<br/><br/>\n" .
-             "$status - $error\n" .
-             "<br/>\n" .
-             "</div>\n";
+       print <<EOF;
+<div class="page_body">
+<br /><br />
+$status - $error
+<br />
+</div>
+EOF

        git_footer_html();
        exit;
 }
        git_footer_html();
        exit;
 }


@@ -1153,22 +1405,91 @@ sub git_print_header_div {
 sub git_print_page_path {
        my $name = shift;
        my $type = shift;
 sub git_print_page_path {
        my $name = shift;
        my $type = shift;

+       my $hb = shift;

 
        if (!defined $name) {
 
        if (!defined $name) {

-               print "<div class=\"page_path\"><b>/</b></div>\n";
+               print "<div class=\"page_path\">/</div>\n";

        } elsif (defined $type && $type eq 'blob') {
        } elsif (defined $type && $type eq 'blob') {

-               print "<div class=\"page_path\"><b>" .
-                       $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
+               print "<div class=\"page_path\">";
+               if (defined $hb) {
+                       print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
+                                                    hash_base=>$hb)},
+                                     esc_html($name));
+               } else {
+                       print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
+                                     esc_html($name));
+               }
+               print "<br/></div>\n";

        } else {
        } else {

-               print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
+               print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
+       }
+}
+
+sub git_print_log {
+       my $log = shift;
+
+       # remove leading empty lines
+       while (defined $log->[0] && $log->[0] eq "") {
+               shift @$log;
+       }
+
+       # print log
+       my $signoff = 0;
+       my $empty = 0;
+       foreach my $line (@$log) {
+               # print only one empty line
+               # do not print empty line after signoff
+               if ($line eq "") {
+                       next if ($empty || $signoff);
+                       $empty = 1;
+               } else {
+                       $empty = 0;
+               }
+               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
+                       $signoff = 1;
+                       print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
+               } else {
+                       $signoff = 0;
+                       print format_log_line_html($line) . "<br/>\n";
+               }
+       }
+}
+
+sub git_print_simplified_log {
+       my $log = shift;
+       my $remove_title = shift;
+
+       shift @$log if $remove_title;
+       # remove leading empty lines
+       while (defined $log->[0] && $log->[0] eq "") {
+               shift @$log;
+       }
+
+       # simplify and print log
+       my $empty = 0;
+       foreach my $line (@$log) {
+               # remove signoff lines
+               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
+                       next;
+               }
+               # print only one empty line
+               if ($line eq "") {
+                       next if $empty;
+                       $empty = 1;
+               } else {
+                       $empty = 0;
+               }
+               print format_log_line_html($line) . "<br/>\n";

        }
        }

+       # end with single empty line
+       print "<br/>\n" unless $empty;

 }
 
 ## ......................................................................
 ## functions printing large fragments of HTML
 
 sub git_difftree_body {
 }
 
 ## ......................................................................
 ## functions printing large fragments of HTML
 
 sub git_difftree_body {

-       my ($difftree, $parent) = @_;
+       my ($difftree, $hash, $parent) = @_;

 
        print "<div class=\"list_head\">\n";
        if ($#{$difftree} > 10) {
 
        print "<div class=\"list_head\">\n";
        if ($#{$difftree} > 10) {


@@ -1179,18 +1500,7 @@ sub git_difftree_body {
        print "<table class=\"diff_tree\">\n";
        my $alternate = 0;
        foreach my $line (@{$difftree}) {
        print "<table class=\"diff_tree\">\n";
        my $alternate = 0;
        foreach my $line (@{$difftree}) {

-               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
-               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
-               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;
-               }
-               my $from_mode = $1;
-               my $to_mode = $2;
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $similarity = $6; # score
-               my $file = validate_input(unquote($7));
+               my %diff = parse_difftree_raw_line($line);

 
                if ($alternate) {
                        print "<tr class=\"dark\">\n";
 
                if ($alternate) {
                        print "<tr class=\"dark\">\n";


@@ -1199,116 +1509,274 @@ sub git_difftree_body {
                }
                $alternate ^= 1;
 
                }
                $alternate ^= 1;
 

-               if ($status eq "A") { # created
-                       my $mode_chng = "";
-                       if (S_ISREG(oct $to_mode)) {
-                               $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
+               my ($to_mode_oct, $to_mode_str, $to_file_type);
+               my ($from_mode_oct, $from_mode_str, $from_file_type);
+               if ($diff{'to_mode'} ne ('0' x 6)) {
+                       $to_mode_oct = oct $diff{'to_mode'};
+                       if (S_ISREG($to_mode_oct)) { # only for regular file
+                               $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
+                       }
+                       $to_file_type = file_type($diff{'to_mode'});
+               }
+               if ($diff{'from_mode'} ne ('0' x 6)) {
+                       $from_mode_oct = oct $diff{'from_mode'};
+                       if (S_ISREG($to_mode_oct)) { # only for regular file
+                               $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits

                        }
                        }

+                       $from_file_type = file_type($diff{'from_mode'});
+               }
+
+               if ($diff{'status'} eq "A") { # created
+                       my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
+                       $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
+                       $mode_chng   .= "]</span>";

                        print "<td>" .
                        print "<td>" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
-                                     -class => "list"}, esc_html($file)) .
+                             $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                    hash_base=>$hash, file_name=>$diff{'file'}),
+                                     -class => "list"}, esc_html($diff{'file'})) .

                              "</td>\n" .
                              "</td>\n" .

-                             "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
+                             "<td>$mode_chng</td>\n" .

                              "<td class=\"link\">" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
+                             $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                    hash_base=>$hash, file_name=>$diff{'file'})},
+                                     "blob") .

                              "</td>\n";
 
                              "</td>\n";
 

-               } elsif ($status eq "D") { # deleted
+               } elsif ($diff{'status'} eq "D") { # deleted
+                       my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";

                        print "<td>" .
                        print "<td>" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
-                                      -class => "list"}, esc_html($file)) . "</td>\n" .
-                             "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
+                                                    hash_base=>$parent, file_name=>$diff{'file'}),
+                                      -class => "list"}, esc_html($diff{'file'})) .
+                             "</td>\n" .
+                             "<td>$mode_chng</td>\n" .

                              "<td class=\"link\">" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
-                             $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
-                             "</td>\n"
+                             $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
+                                                    hash_base=>$parent, file_name=>$diff{'file'})},
+                                     "blob") .
+                             " | " .
+                             $cgi->a({-href => href(action=>"history", hash_base=>$parent,
+                                                    file_name=>$diff{'file'})},\
+                                     "history") .
+                             "</td>\n";

 
 

-               } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
+               } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed

                        my $mode_chnge = "";
                        my $mode_chnge = "";

-                       if ($from_mode != $to_mode) {
-                               $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
-                               if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
-                                       $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
+                       if ($diff{'from_mode'} != $diff{'to_mode'}) {
+                               $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
+                               if ($from_file_type != $to_file_type) {
+                                       $mode_chnge .= " from $from_file_type to $to_file_type";

                                }
                                }

-                               if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
-                                       if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
-                                               $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
-                                       } elsif (S_ISREG($to_mode)) {
-                                               $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
+                               if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
+                                       if ($from_mode_str && $to_mode_str) {
+                                               $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
+                                       } elsif ($to_mode_str) {
+                                               $mode_chnge .= " mode: $to_mode_str";

                                        }
                                }
                                $mode_chnge .= "]</span>\n";
                        }
                        print "<td>";
                                        }
                                }
                                $mode_chnge .= "]</span>\n";
                        }
                        print "<td>";

-                       if ($to_id ne $from_id) { # modified
-                               print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
-                                             -class => "list"}, esc_html($file));
-                       } else { # mode changed
-                               print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
-                                             -class => "list"}, esc_html($file));
+                       if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
+                               print $cgi->a({-href => href(action=>"blobdiff",
+                                                            hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
+                                                            hash_base=>$hash, hash_parent_base=>$parent,
+                                                            file_name=>$diff{'file'}),
+                                             -class => "list"}, esc_html($diff{'file'}));
+                       } else { # only mode changed
+                               print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                            hash_base=>$hash, file_name=>$diff{'file'}),
+                                             -class => "list"}, esc_html($diff{'file'}));

                        }
                        print "</td>\n" .
                              "<td>$mode_chnge</td>\n" .
                              "<td class=\"link\">" .
                        }
                        print "</td>\n" .
                              "<td>$mode_chnge</td>\n" .
                              "<td class=\"link\">" .

-                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
-                       if ($to_id ne $from_id) { # modified
-                               print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
-                       }
-                       print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
-                       print "</td>\n";
-
-               } elsif ($status eq "R") { # renamed
-                       my ($from_file, $to_file) = split "\t", $file;
-                       my $mode_chng = "";
-                       if ($from_mode != $to_mode) {
-                               $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
-                       }
-                       print "<td>" .
-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
-                                     -class => "list"}, esc_html($to_file)) . "</td>\n" .
-                             "<td><span class=\"file_status moved\">[moved from " .
-                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
-                                     -class => "list"}, esc_html($from_file)) .
-                             " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
-                       if ($to_id ne $from_id) {
+                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
+                                                      hash_base=>$hash, file_name=>$diff{'file'})},
+                                       "blob");
+                       if ($diff{'to_id'} ne $diff{'from_id'}) { # modified

                                print " | " .
                                print " | " .

-                                     $cgi->a({-href => "$my_uri?" .
-                                             esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
+                                       $cgi->a({-href => href(action=>"blobdiff",
+                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
+                                                              hash_base=>$hash, hash_parent_base=>$parent,
+                                                              file_name=>$diff{'file'})},
+                                               "diff");

                        }
                        }

+                       print " | " .
+                               $cgi->a({-href => href(action=>"history",
+                                                      hash_base=>$hash, file_name=>$diff{'file'})},
+                                       "history");

                        print "</td>\n";
 
                        print "</td>\n";
 

-               } elsif ($status eq "C") { # copied
-                       my ($from_file, $to_file) = split "\t", $file;
+               } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
+                       my %status_name = ('R' => 'moved', 'C' => 'copied');
+                       my $nstatus = $status_name{$diff{'status'}};

                        my $mode_chng = "";
                        my $mode_chng = "";

-                       if ($from_mode != $to_mode) {
-                               $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
+                       if ($diff{'from_mode'} != $diff{'to_mode'}) {
+                               # mode also for directories, so we cannot use $to_mode_str
+                               $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);

                        }
                        print "<td>" .
                        }
                        print "<td>" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
-                                     -class => "list"}, esc_html($to_file)) . "</td>\n" .
-                             "<td><span class=\"file_status copied\">[copied from " .
-                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
-                                     -class => "list"}, esc_html($from_file)) .
-                             " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
+                             $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
+                                                    hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
+                                     -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
+                             "<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'})) .
+                             " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .

                              "<td class=\"link\">" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
-                       if ($to_id ne $from_id) {
+                             $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
+                                                    hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
+                                     "blob");
+                       if ($diff{'to_id'} ne $diff{'from_id'}) {

                                print " | " .
                                print " | " .

-                                     $cgi->a({-href => "$my_uri?" .
-                                             esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
+                                       $cgi->a({-href => href(action=>"blobdiff",
+                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
+                                                              hash_base=>$hash, hash_parent_base=>$parent,
+                                                              file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
+                                               "diff");

                        }
                        print "</td>\n";
                        }
                        print "</td>\n";

+

                } # we should not encounter Unmerged (U) or Unknown (X) status
                print "</tr>\n";
        }
        print "</table>\n";
 }
 
                } # we should not encounter Unmerged (U) or Unknown (X) status
                print "</tr>\n";
        }
        print "</table>\n";
 }
 

+sub git_patchset_body {
+       my ($fd, $difftree, $hash, $hash_parent) = @_;
+
+       my $patch_idx = 0;
+       my $in_header = 0;
+       my $patch_found = 0;
+       my $diffinfo;
+
+       print "<div class=\"patchset\">\n";
+
+       LINE:
+       while (my $patch_line @$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
+                               $patch_found = 1;
+                       }
+                       print "<div class=\"patch\">\n";
+
+                       if (ref($difftree->[$patch_idx]) eq "HASH") {
+                               $diffinfo = $difftree->[$patch_idx];
+                       } else {
+                               $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
+                       }
+                       $patch_idx++;
+
+                       # for now, no extended header, hence we skip empty patches
+                       # companion to  next LINE if $in_header;
+                       if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
+                               $in_header = 1;
+                               next LINE;
+                       }
+
+                       if ($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"
+                       }
+
+                       #print "<div class=\"diff extended_header\">\n";
+                       $in_header = 1;
+                       next LINE;
+               } # start of patch in patchset
+
+
+               if ($in_header && $patch_line =~ m/^---/) {
+                       #print "</div>\n"; # class="diff extended_header"
+                       $in_header = 0;
+
+                       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";
+
+                       $patch_line = <$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 LINE;
+               }
+               next LINE if $in_header;
+
+               print format_diff_line($patch_line);
+       }
+       print "</div>\n" if $patch_found; # class="patch"
+
+       print "</div>\n"; # class="patchset"
+}
+
+# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+

 sub git_shortlog_body {
        # uses global variable $project
        my ($revlist, $from, $to, $refs, $extra) = @_;
 sub git_shortlog_body {
        # uses global variable $project
        my ($revlist, $from, $to, $refs, $extra) = @_;

+
+       my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
+       my $have_snapshot = (defined $ctype && defined $suffix);
+

        $from = 0 unless defined $from;
        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
 
        $from = 0 unless defined $from;
        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
 


@@ -1329,12 +1797,16 @@ sub git_shortlog_body {
                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
                      "<td>";
                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
                      "<td>";

-               print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
+               print format_subject_html($co{'title'}, $co{'title_short'},
+                                         href(action=>"commit", hash=>$commit), $ref);

                print "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
                print "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .

-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
-                     "</td>\n" .
+                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
+               if ($have_snapshot) {
+                       print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
+               }
+               print "</td>\n" .

                      "</tr>\n";
        }
        if (defined $extra) {
                      "</tr>\n";
        }
        if (defined $extra) {


@@ -1375,7 +1847,8 @@ sub git_history_body {
                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
                      "<td>";
                # originally git_history used chop_str($co{'title'}, 50)
                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
                      "<td>";
                # originally git_history used chop_str($co{'title'}, 50)

-               print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
+               print format_subject_html($co{'title'}, $co{'title_short'},
+                                         href(action=>"commit", hash=>$commit), $ref);

                print "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
                print "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .


@@ -1388,7 +1861,10 @@ sub git_history_body {
                        if (defined $blob_current && defined $blob_parent &&
                                        $blob_current ne $blob_parent) {
                                print " | " .
                        if (defined $blob_current && defined $blob_parent &&
                                        $blob_current ne $blob_parent) {
                                print " | " .

-                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
+                                       $cgi->a({-href => href(action=>"blobdiff",
+                                                              hash=>$blob_current, hash_parent=>$blob_parent,
+                                                              hash_base=>$hash_base, hash_parent_base=>$commit,
+                                                              file_name=>$file_name)},

                                                "diff to current");
                        }
                }
                                                "diff to current");
                        }
                }


@@ -1429,11 +1905,12 @@ sub git_tags_body {
                print "<td><i>$tag{'age'}</i></td>\n" .
                      "<td>" .
                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
                print "<td><i>$tag{'age'}</i></td>\n" .
                      "<td>" .
                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),

-                              -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
+                              -class => "list name"}, esc_html($tag{'name'})) .

                      "</td>\n" .
                      "<td>";
                if (defined $comment) {
                      "</td>\n" .
                      "<td>";
                if (defined $comment) {

-                       print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
+                       print format_subject_html($comment, $comment_short,
+                                                 href(action=>"tag", hash=>$tag{'id'}));

                }
                print "</td>\n" .
                      "<td class=\"selflink\">";
                }
                print "</td>\n" .
                      "<td class=\"selflink\">";


@@ -1483,7 +1960,7 @@ sub git_heads_body {
                print "<td><i>$tag{'age'}</i></td>\n" .
                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
                print "<td><i>$tag{'age'}</i></td>\n" .
                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),

-                              -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
+                              -class => "list name"},esc_html($tag{'name'})) .

                      "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
                      "</td>\n" .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .


@@ -1499,77 +1976,6 @@ sub git_heads_body {
        print "</table>\n";
 }
 
        print "</table>\n";
 }
 

-## ----------------------------------------------------------------------
-## functions printing large fragments, format as one of arguments
-
-sub git_diff_print {
-       my $from = shift;
-       my $from_name = shift;
-       my $to = shift;
-       my $to_name = shift;
-       my $format = shift || "html";
-
-       my $from_tmp = "/dev/null";
-       my $to_tmp = "/dev/null";
-       my $pid = $$;
-
-       # create tmp from-file
-       if (defined $from) {
-               $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
-               open my $fd2, "> $from_tmp";
-               open my $fd, "-|", $GIT, "cat-file", "blob", $from;
-               my @file = <$fd>;
-               print $fd2 @file;
-               close $fd2;
-               close $fd;
-       }
-
-       # create tmp to-file
-       if (defined $to) {
-               $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
-               open my $fd2, "> $to_tmp";
-               open my $fd, "-|", $GIT, "cat-file", "blob", $to;
-               my @file = <$fd>;
-               print $fd2 @file;
-               close $fd2;
-               close $fd;
-       }
-
-       open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
-       if ($format eq "plain") {
-               undef $/;
-               print <$fd>;
-               $/ = "\n";
-       } else {
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my $char = substr($line, 0, 1);
-                       my $diff_class = "";
-                       if ($char eq '+') {
-                               $diff_class = " add";
-                       } elsif ($char eq "-") {
-                               $diff_class = " rem";
-                       } elsif ($char eq "@") {
-                               $diff_class = " chunk_header";
-                       } elsif ($char eq "\\") {
-                               # skip errors
-                               next;
-                       }
-                       $line = untabify($line);
-                       print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
-               }
-       }
-       close $fd;
-
-       if (defined $from) {
-               unlink($from_tmp);
-       }
-       if (defined $to) {
-               unlink($to_tmp);
-       }
-}
-
-

 ## ======================================================================
 ## ======================================================================
 ## actions
 ## ======================================================================
 ## ======================================================================
 ## actions


@@ -1663,16 +2069,16 @@ sub git_project_list {
                        print "<tr class=\"light\">\n";
                }
                $alternate ^= 1;
                        print "<tr class=\"light\">\n";
                }
                $alternate ^= 1;

-               print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"),
+               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><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
                      $pr->{'commit'}{'age_string'} . "</td>\n" .
                      "<td class=\"link\">" .
                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
                      $pr->{'commit'}{'age_string'} . "</td>\n" .
                      "<td class=\"link\">" .

-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary")   . " | " .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") . " | " .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
+                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
+                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
+                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .

                      "</td>\n" .
                      "</tr>\n";
        }
                      "</td>\n" .
                      "</tr>\n";
        }


@@ -1697,10 +2103,14 @@ sub git_summary {
              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
              "<tr><td>owner</td><td>$owner</td></tr>\n" .
              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
              "<tr><td>owner</td><td>$owner</td></tr>\n" .
              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";

+       # use per project git URL list in $projectroot/$project/cloneurl
+       # or make project git URL from git base URL and project name

        my $url_tag = "URL";
        my $url_tag = "URL";

-       foreach my $git_base_url (@git_base_url_list) {
-               next unless $git_base_url;
-               print "<tr><td>$url_tag</td><td>$git_base_url/$project</td></tr>\n";
+       my @url_list = git_get_project_url_list($project);
+       @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
+       foreach my $git_url (@url_list) {
+               next unless $git_url;
+               print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";

                $url_tag = "";
        }
        print "</table>\n";
                $url_tag = "";
        }
        print "</table>\n";


@@ -1740,13 +2150,17 @@ sub git_tag {
              "<table cellspacing=\"0\">\n" .
              "<tr>\n" .
              "<td>object</td>\n" .
              "<table cellspacing=\"0\">\n" .
              "<tr>\n" .
              "<td>object</td>\n" .

-             "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
-             "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
+             "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
+                              $tag{'object'}) . "</td>\n" .
+             "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
+                                             $tag{'type'}) . "</td>\n" .

              "</tr>\n";
        if (defined($tag{'author'})) {
                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
              "</tr>\n";
        if (defined($tag{'author'})) {
                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";

-               print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
+               print "<tr><td></td><td>" . $ad{'rfc2822'} .
+                       sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
+                       "</td></tr>\n";

        }
        print "</table>\n\n" .
              "</div>\n";
        }
        print "</table>\n\n" .
              "</div>\n";


@@ -1762,7 +2176,10 @@ sub git_tag {
 sub git_blame2 {
        my $fd;
        my $ftype;
 sub git_blame2 {
        my $fd;
        my $ftype;

-       die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
+
+       if (!gitweb_check_feature('blame')) {
+               die_error('403 Permission denied', "Permission denied");
+       }

        die_error('404 Not Found', "File name not defined") if (!$file_name);
        $hash_base ||= git_get_head_hash($project);
        die_error(undef, "Couldn't find base commit") unless ($hash_base);
        die_error('404 Not Found', "File name not defined") if (!$file_name);
        $hash_base ||= git_get_head_hash($project);
        die_error(undef, "Couldn't find base commit") unless ($hash_base);


@@ -1780,18 +2197,23 @@ sub git_blame2 {
                or die_error(undef, "Open git-blame failed");
        git_header_html();
        my $formats_nav =
                or die_error(undef, "Open git-blame failed");
        git_header_html();
        my $formats_nav =

-               $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
-               " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
+               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
+                       "blob") .
+               " | " .
+               $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
+                       "head");

        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);

-       git_print_page_path($file_name, $ftype);
+       git_print_page_path($file_name, $ftype, $hash_base);

        my @rev_color = (qw(light2 dark2));
        my $num_colors = scalar(@rev_color);
        my $current_color = 0;
        my $last_rev;
        my @rev_color = (qw(light2 dark2));
        my $num_colors = scalar(@rev_color);
        my $current_color = 0;
        my $last_rev;

-       print "<div class=\"page_body\">\n";
-       print "<table class=\"blame\">\n";
-       print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
+       print <<HTML;
+<div class="page_body">
+<table class="blame">
+<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
+HTML

        while (<$fd>) {
                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
                my $full_rev = $1;
        while (<$fd>) {
                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
                my $full_rev = $1;


@@ -1807,20 +2229,26 @@ sub git_blame2 {
                }
                print "<tr class=\"$rev_color[$current_color]\">\n";
                print "<td class=\"sha1\">" .
                }
                print "<tr class=\"$rev_color[$current_color]\">\n";
                print "<td class=\"sha1\">" .

-                       $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
-               print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
+                       $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
+                               esc_html($rev)) . "</td>\n";
+               print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
+                     esc_html($lineno) . "</a></td>\n";

                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
                print "</tr>\n";
        }
        print "</table>\n";
        print "</div>";
                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
                print "</tr>\n";
        }
        print "</table>\n";
        print "</div>";

-       close $fd or print "Reading blob failed\n";
+       close $fd
+               or print "Reading blob failed\n";

        git_footer_html();
 }
 
 sub git_blame {
        my $fd;
        git_footer_html();
 }
 
 sub git_blame {
        my $fd;

-       die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
+
+       if (!gitweb_check_feature('blame')) {
+               die_error('403 Permission denied', "Permission denied");
+       }

        die_error('404 Not Found', "File name not defined") if (!$file_name);
        $hash_base ||= git_get_head_hash($project);
        die_error(undef, "Couldn't find base commit") unless ($hash_base);
        die_error('404 Not Found', "File name not defined") if (!$file_name);
        $hash_base ||= git_get_head_hash($project);
        die_error(undef, "Couldn't find base commit") unless ($hash_base);


@@ -1834,11 +2262,14 @@ sub git_blame {
                or die_error(undef, "Open git-annotate failed");
        git_header_html();
        my $formats_nav =
                or die_error(undef, "Open git-annotate failed");
        git_header_html();
        my $formats_nav =

-               $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
-               " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
+               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
+                       "blob") .
+               " | " .
+               $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
+                       "head");

        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);

-       git_print_page_path($file_name, 'blob');
+       git_print_page_path($file_name, 'blob', $hash_base);

        print "<div class=\"page_body\">\n";
        print <<HTML;
 <table class="blame">
        print "<div class=\"page_body\">\n";
        print <<HTML;
 <table class="blame">


@@ -1867,7 +2298,7 @@ HTML
                chomp $line;
                $line_class_num = ($line_class_num + 1) % $line_class_len;
 
                chomp $line;
                $line_class_num = ($line_class_num + 1) % $line_class_len;
 

-               if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
+               if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {

                        $long_rev = $1;
                        $author   = $2;
                        $time     = $3;
                        $long_rev = $1;
                        $author   = $2;
                        $time     = $3;


@@ -1899,7 +2330,8 @@ HTML
 HTML
        } # while (my $line = <$fd>)
        print "</table>\n\n";
 HTML
        } # while (my $line = <$fd>)
        print "</table>\n\n";

-       close $fd or print "Reading blob failed.\n";
+       close $fd
+               or print "Reading blob failed.\n";

        print "</div>";
        git_footer_html();
 }
        print "</div>";
        git_footer_html();
 }


@@ -1954,7 +2386,8 @@ sub git_blob_plain {
                $save_as .= '.txt';
        }
 
                $save_as .= '.txt';
        }
 

-       print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
+       print $cgi->header(-type => "$type",
+                          -content_disposition => "inline; filename=\"$save_as\"");

        undef $/;
        binmode STDOUT, ':raw';
        print <$fd>;
        undef $/;
        binmode STDOUT, ':raw';
        print <$fd>;


@@ -1973,7 +2406,7 @@ sub git_blob {
                        die_error(undef, "No file name defined");
                }
        }
                        die_error(undef, "No file name defined");
                }
        }

-       my $have_blame = git_get_project_config_bool ('blame');
+       my $have_blame = gitweb_check_feature('blame');

        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
                or die_error(undef, "Couldn't cat $file_name, $hash");
        my $mimetype = blob_mimetype($fd, $file_name);
        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
                or die_error(undef, "Couldn't cat $file_name, $hash");
        my $mimetype = blob_mimetype($fd, $file_name);


@@ -1986,13 +2419,23 @@ sub git_blob {
        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
                if (defined $file_name) {
                        if ($have_blame) {
        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
                if (defined $file_name) {
                        if ($have_blame) {

-                               $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
+                               $formats_nav .=
+                                       $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
+                                                              hash=>$hash, file_name=>$file_name)},
+                                               "blame") .
+                                       " | ";

                        }
                        $formats_nav .=
                        }
                        $formats_nav .=

-                               $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
-                               " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
+                               $cgi->a({-href => href(action=>"blob_plain",
+                                                      hash=>$hash, file_name=>$file_name)},
+                                       "plain") .
+                               " | " .
+                               $cgi->a({-href => href(action=>"blob",
+                                                      hash_base=>"HEAD", file_name=>$file_name)},
+                                       "head");

                } else {
                } else {

-                       $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
+                       $formats_nav .=
+                               $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");

                }
                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
                }
                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);


@@ -2001,16 +2444,18 @@ sub git_blob {
                      "<br/><br/></div>\n" .
                      "<div class=\"title\">$hash</div>\n";
        }
                      "<br/><br/></div>\n" .
                      "<div class=\"title\">$hash</div>\n";
        }

-       git_print_page_path($file_name, "blob");
+       git_print_page_path($file_name, "blob", $hash_base);

        print "<div class=\"page_body\">\n";
        my $nr;
        while (my $line = <$fd>) {
                chomp $line;
                $nr++;
                $line = untabify($line);
        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);
+               printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
+                      $nr, $nr, $nr, esc_html($line);

        }
        }

-       close $fd or print "Reading blob failed.\n";
+       close $fd
+               or print "Reading blob failed.\n";

        print "</div>";
        git_footer_html();
 }
        print "</div>";
        git_footer_html();
 }


@@ -2036,11 +2481,11 @@ sub git_tree {
        my $refs = git_get_references();
        my $ref = format_ref_marker($refs, $hash_base);
        git_header_html();
        my $refs = git_get_references();
        my $ref = format_ref_marker($refs, $hash_base);
        git_header_html();

-       my $base_key = "";
+       my %base_key = ();

        my $base = "";
        my $base = "";

-       my $have_blame = git_get_project_config_bool ('blame');
+       my $have_blame = gitweb_check_feature('blame');

        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
        if (defined $hash_base && (my %co = parse_commit($hash_base))) {

-               $base_key = ";hb=$hash_base";
+               $base_key{hash_base} = $hash_base;

                git_print_page_nav('tree','', $hash_base);
                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
        } else {
                git_print_page_nav('tree','', $hash_base);
                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
        } else {


@@ -2051,7 +2496,7 @@ sub git_tree {
        if (defined $file_name) {
                $base = esc_html("$file_name/");
        }
        if (defined $file_name) {
                $base = esc_html("$file_name/");
        }

-       git_print_page_path($file_name, 'tree');
+       git_print_page_path($file_name, 'tree', $hash_base);

        print "<div class=\"page_body\">\n";
        print "<table cellspacing=\"0\">\n";
        my $alternate = 0;
        print "<div class=\"page_body\">\n";
        print "<table cellspacing=\"0\">\n";
        my $alternate = 0;


@@ -2071,23 +2516,37 @@ sub git_tree {
                print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
                if ($t_type eq "blob") {
                        print "<td class=\"list\">" .
                print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
                if ($t_type eq "blob") {
                        print "<td class=\"list\">" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
+                             $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key),
+                                     -class => "list"}, esc_html($t_name)) .

                              "</td>\n" .
                              "<td class=\"link\">" .
                              "</td>\n" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob");
+                             $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
+                                     "blob");

                        if ($have_blame) {
                        if ($have_blame) {

-                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame");
+                               print " | " .
+                                       $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
+                                               "blame");

                        }
                        }

-                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
+                       print " | " .
+                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
+                                                    hash=>$t_hash, file_name=>"$base$t_name")},
+                                     "history") .
+                             " | " .
+                             $cgi->a({-href => href(action=>"blob_plain",
+                                                    hash=>$t_hash, file_name=>"$base$t_name")},
+                                     "raw") .

                              "</td>\n";
                } elsif ($t_type eq "tree") {
                        print "<td class=\"list\">" .
                              "</td>\n";
                } elsif ($t_type eq "tree") {
                        print "<td class=\"list\">" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
+                             $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
+                                     esc_html($t_name)) .

                              "</td>\n" .
                              "<td class=\"link\">" .
                              "</td>\n" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
+                             $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
+                                     "tree") .
+                             " | " .
+                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")},
+                                     "history") .

                              "</td>\n";
                }
                print "</tr>\n";
                              "</td>\n";
                }
                print "</tr>\n";


@@ -2097,6 +2556,34 @@ sub git_tree {
        git_footer_html();
 }
 
        git_footer_html();
 }
 

+sub git_snapshot {
+
+       my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
+       my $have_snapshot = (defined $ctype && defined $suffix);
+       if (!$have_snapshot) {
+               die_error('403 Permission denied', "Permission denied");
+       }
+
+       if (!defined $hash) {
+               $hash = git_get_head_hash($project);
+       }
+
+       my $filename = basename($project) . "-$hash.tar.$suffix";
+
+       print $cgi->header(-type => 'application/x-tar',
+                          -content_encoding => $ctype,
+                          -content_disposition => "inline; filename=\"$filename\"",
+                          -status => '200 OK');
+
+       open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
+               die_error(undef, "Execute git-tar-tree failed.");
+       binmode STDOUT, ':raw';
+       print <$fd>;
+       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
+       close $fd;
+
+}
+

 sub git_log {
        my $head = git_get_head_hash($project);
        if (!defined $hash) {
 sub git_log {
        my $head = git_get_head_hash($project);
        if (!defined $hash) {


@@ -2137,31 +2624,15 @@ sub git_log {
                print "<div class=\"title_text\">\n" .
                      "<div class=\"log_link\">\n" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
                print "<div class=\"title_text\">\n" .
                      "<div class=\"log_link\">\n" .
                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .

-                     " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
+                     " | " .
+                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .

                      "<br/>\n" .
                      "</div>\n" .
                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
                      "<br/>\n" .
                      "</div>\n" .
                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .

-                     "</div>\n" .
-                     "<div class=\"log_body\">\n";
-               my $comment = $co{'comment'};
-               my $empty = 0;
-               foreach my $line (@$comment) {
-                       if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                               next;
-                       }
-                       if ($line eq "") {
-                               if ($empty) {
-                                       next;
-                               }
-                               $empty = 1;
-                       } else {
-                               $empty = 0;
-                       }
-                       print format_log_line_html($line) . "<br/>\n";
-               }
-               if (!$empty) {
-                       print "<br/>\n";
-               }
+                     "</div>\n";
+
+               print "<div class=\"log_body\">\n";
+               git_print_simplified_log($co{'comment'});

                print "</div>\n";
        }
        git_footer_html();
                print "</div>\n";
        }
        git_footer_html();


@@ -2191,15 +2662,21 @@ sub git_commit {
        }
        my $refs = git_get_references();
        my $ref = format_ref_marker($refs, $co{'id'});
        }
        my $refs = git_get_references();
        my $ref = format_ref_marker($refs, $co{'id'});

+
+       my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
+       my $have_snapshot = (defined $ctype && defined $suffix);
+

        my $formats_nav = '';
        if (defined $file_name && defined $co{'parent'}) {
                my $parent = $co{'parent'};
        my $formats_nav = '';
        if (defined $file_name && defined $co{'parent'}) {
                my $parent = $co{'parent'};

-               $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
+               $formats_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', defined $co{'parent'} ? '' : 'commitdiff',
        }
        git_header_html(undef, $expires);
        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',

-                    $hash, $co{'tree'}, $hash,
-                    $formats_nav);
+                          $hash, $co{'tree'}, $hash,
+                          $formats_nav);

 
        if (defined $co{'parent'}) {
                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
 
        if (defined $co{'parent'}) {
                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);


@@ -2212,189 +2689,231 @@ sub git_commit {
              "<tr>" .
              "<td></td><td> $ad{'rfc2822'}";
        if ($ad{'hour_local'} < 6) {
              "<tr>" .
              "<td></td><td> $ad{'rfc2822'}";
        if ($ad{'hour_local'} < 6) {

-               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
+               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
+                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});

        } else {
        } else {

-               printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
+               printf(" (%02d:%02d %s)",
+                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});

        }
        print "</td>" .
              "</tr>\n";
        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
        }
        print "</td>" .
              "</tr>\n";
        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";

-       print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
+       print "<tr><td></td><td> $cd{'rfc2822'}" .
+             sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
+             "</td></tr>\n";

        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
        print "<tr>" .
              "<td>tree</td>" .
              "<td class=\"sha1\">" .
        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
        print "<tr>" .
              "<td>tree</td>" .
              "<td class=\"sha1\">" .

-             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
-             "</td>" .
-             "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
+             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
+                      class => "list"}, $co{'tree'}) .

              "</td>" .
              "</td>" .

+             "<td class=\"link\">" .
+             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
+                     "tree");
+       if ($have_snapshot) {
+               print " | " .
+                     $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
+       }
+       print "</td>" .

              "</tr>\n";
        my $parents = $co{'parents'};
        foreach my $par (@$parents) {
                print "<tr>" .
                      "<td>parent</td>" .
              "</tr>\n";
        my $parents = $co{'parents'};
        foreach my $par (@$parents) {
                print "<tr>" .
                      "<td>parent</td>" .

-                     "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
+                     "<td class=\"sha1\">" .
+                     $cgi->a({-href => href(action=>"commit", hash=>$par),
+                              class => "list"}, $par) .
+                     "</td>" .

                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
                      "<td class=\"link\">" .
                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .

-                     " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
+                     " | " .
+                     $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .

                      "</td>" .
                      "</tr>\n";
        }
        print "</table>".
              "</div>\n";
                      "</td>" .
                      "</tr>\n";
        }
        print "</table>".
              "</div>\n";

+

        print "<div class=\"page_body\">\n";
        print "<div class=\"page_body\">\n";

-       my $comment = $co{'comment'};
-       my $empty = 0;
-       my $signed = 0;
-       foreach my $line (@$comment) {
-               # print only one empty line
-               if ($line eq "") {
-                       if ($empty || $signed) {
-                               next;
-                       }
-                       $empty = 1;
-               } else {
-                       $empty = 0;
-               }
-               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                       $signed = 1;
-                       print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
-               } else {
-                       $signed = 0;
-                       print format_log_line_html($line) . "<br/>\n";
-               }
-       }
+       git_print_log($co{'comment'});

        print "</div>\n";
 
        print "</div>\n";
 

-       git_difftree_body(\@difftree, $parent);
+       git_difftree_body(\@difftree, $hash, $parent);

 
        git_footer_html();
 }
 
 sub git_blobdiff {
 
        git_footer_html();
 }
 
 sub git_blobdiff {

-       mkdir($git_temp, 0700);
-       git_header_html();
-       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-               my $formats_nav =
-                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
-               git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       } else {
-               print "<div class=\"page_nav\">\n" .
-                     "<br/><br/></div>\n" .
-                     "<div class=\"title\">$hash vs $hash_parent</div>\n";
-       }
-       git_print_page_path($file_name, "blob");
-       print "<div class=\"page_body\">\n" .
-             "<div class=\"diff_info\">blob:" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
-             " -> blob:" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
-             "</div>\n";
-       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
-       print "</div>";
-       git_footer_html();
-}
+       my $format = shift || 'html';

 
 

-sub git_blobdiff_plain {
-       mkdir($git_temp, 0700);
-       print $cgi->header(-type => "text/plain", -charset => 'utf-8');
-       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
-}
+       my $fd;
+       my @difftree;
+       my %diffinfo;
+       my $expires;

 
 

-sub git_commitdiff {
-       mkdir($git_temp, 0700);
-       my %co = parse_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object");
-       }
-       if (!defined $hash_parent) {
-               $hash_parent = $co{'parent'} || '--root';
+       # preparing $fd and %diffinfo for git_patchset_body
+       # new style URI
+       if (defined $hash_base && defined $hash_parent_base) {
+               if (defined $file_name) {
+                       # read raw output
+                       open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C', $hash_parent_base, $hash_base,
+                               "--", $file_name
+                               or die_error(undef, "Open git-diff-tree failed");
+                       @difftree = map { chomp; $_ } <$fd>;
+                       close $fd
+                               or die_error(undef, "Reading git-diff-tree failed");
+                       @difftree
+                               or die_error('404 Not Found', "Blob diff not found");
+
+               } elsif (defined $hash) { # try to find filename from $hash
+                       if ($hash !~ /[0-9a-fA-F]{40}/) {
+                               $hash = git_to_hash($hash);
+                       }
+
+                       # read filtered raw output
+                       open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C', $hash_parent_base, $hash_base
+                               or die_error(undef, "Open git-diff-tree failed");
+                       @difftree =
+                               # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
+                               # $hash == to_id
+                               grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
+                               map { chomp; $_ } <$fd>;
+                       close $fd
+                               or die_error(undef, "Reading git-diff-tree failed");
+                       @difftree
+                               or die_error('404 Not Found', "Blob diff not found");
+
+               } else {
+                       die_error('404 Not Found', "Missing one of the blob diff parameters");
+               }
+
+               if (@difftree > 1) {
+                       die_error('404 Not Found', "Ambiguous blob diff specification");
+               }
+
+               %diffinfo = parse_difftree_raw_line($difftree[0]);
+               $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
+               $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
+
+               $hash_parent ||= $diffinfo{'from_id'};
+               $hash        ||= $diffinfo{'to_id'};
+
+               # non-textual hash id's can be cached
+               if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
+                   $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
+                       $expires = '+1d';
+               }
+
+               # open patch output
+               open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-M', '-C', $hash_parent_base, $hash_base,
+                       "--", $file_name
+                       or die_error(undef, "Open git-diff-tree failed");

        }
        }

-       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_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");

 
 

-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
+       # old/legacy style URI
+       if (!%diffinfo && # if new style URI failed
+           defined $hash && defined $hash_parent) {
+               # fake git-diff-tree raw output
+               $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
+               $diffinfo{'from_id'} = $hash_parent;
+               $diffinfo{'to_id'}   = $hash;
+               if (defined $file_name) {
+                       if (defined $file_parent) {
+                               $diffinfo{'status'} = '2';
+                               $diffinfo{'from_file'} = $file_parent;
+                               $diffinfo{'to_file'}   = $file_name;
+                       } else { # assume not renamed
+                               $diffinfo{'status'} = '1';
+                               $diffinfo{'from_file'} = $file_name;
+                               $diffinfo{'to_file'}   = $file_name;
+                       }
+               } else { # no filename given
+                       $diffinfo{'status'} = '2';
+                       $diffinfo{'from_file'} = $hash_parent;
+                       $diffinfo{'to_file'}   = $hash;
+               }
+
+               # non-textual hash id's can be cached
+               if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
+                   $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
+                       $expires = '+1d';
+               }
+
+               # open patch output
+               open $fd, "-|", $GIT, "diff", '-p', $hash_parent, $hash
+                       or die_error(undef, "Open git-diff failed");
+       } else  {
+               die_error('404 Not Found', "Missing one of the blob diff parameters")
+                       unless %diffinfo;

        }
        }

-       my $refs = git_get_references();
-       my $ref = format_ref_marker($refs, $co{'id'});
-       my $formats_nav =
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
-       git_header_html(undef, $expires);
-       git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
-       git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
-       print "<div class=\"page_body\">\n";
-       my $comment = $co{'comment'};
-       my $empty = 0;
-       my $signed = 0;
-       my @log = @$comment;
-       # remove first and empty lines after that
-       shift @log;
-       while (defined $log[0] && $log[0] eq "") {
-               shift @log;
-       }
-       foreach my $line (@log) {
-               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                       next;
+
+       # header
+       if ($format eq 'html') {
+               my $formats_nav =
+                       $cgi->a({-href => href(action=>"blobdiff_plain",
+                                              hash=>$hash, hash_parent=>$hash_parent,
+                                              hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
+                                              file_name=>$file_name, file_parent=>$file_parent)},
+                               "plain");
+               git_header_html(undef, $expires);
+               if (defined $hash_base && (my %co = parse_commit($hash_base))) {
+                       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+                       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+               } else {
+                       print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
+                       print "<div class=\"title\">$hash vs $hash_parent</div>\n";

                }
                }

-               if ($line eq "") {
-                       if ($empty) {
-                               next;
-                       }
-                       $empty = 1;
+               if (defined $file_name) {
+                       git_print_page_path($file_name, "blob", $hash_base);

                } else {
                } else {

-                       $empty = 0;
+                       print "<div class=\"page_path\"></div>\n";

                }
                }

-               print format_log_line_html($line) . "<br/>\n";
+
+       } elsif ($format eq 'plain') {
+               print $cgi->header(
+                       -type => 'text/plain',
+                       -charset => 'utf-8',
+                       -expires => $expires,
+                       -content_disposition => qq(inline; filename="${file_name}.patch"));
+
+               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
+
+       } else {
+               die_error(undef, "Unknown blobdiff format");

        }
        }

-       print "<br/>\n";
-       foreach my $line (@difftree) {
-               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
-               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
-               if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
-                       next;
-               }
-               my $from_mode = $1;
-               my $to_mode = $2;
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $file = validate_input(unquote($6));
-               if ($status eq "A") {
-                       print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
-                             "</div>\n";
-                       git_diff_print(undef, "/dev/null", $to_id, "b/$file");
-               } elsif ($status eq "D") {
-                       print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) . "(deleted)" .
-                             "</div>\n";
-                       git_diff_print($from_id, "a/$file", undef, "/dev/null");
-               } elsif ($status eq "M") {
-                       if ($from_id ne $to_id) {
-                               print "<div class=\"diff_info\">" .
-                                     file_type($from_mode) . ":" .
-                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) .
-                                     " -> " .
-                                     file_type($to_mode) . ":" .
-                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
-                               print "</div>\n";
-                               git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
-                       }
+
+       # patch
+       if ($format eq 'html') {
+               print "<div class=\"page_body\">\n";
+
+               git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
+               close $fd;
+
+               print "</div>\n"; # class="page_body"
+               git_footer_html();
+
+       } else {
+               while (my $line = <$fd>) {
+                       $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
+                       $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
+
+                       print $line;
+
+                       last if $line =~ m!^\+\+\+!;

                }
                }

+               local $/ = undef;
+               print <$fd>;
+               close $fd;

        }
        }

-       print "<br/>\n" .
-             "</div>";
-       git_footer_html();

 }
 
 }
 

-sub git_commitdiff_plain {
-       mkdir($git_temp, 0700);
+sub git_blobdiff_plain {
+       git_blobdiff('plain');
+}
+
+sub git_commitdiff {
+       my $format = shift || 'html';

        my %co = parse_commit($hash);
        if (!%co) {
                die_error(undef, "Unknown commit object");
        my %co = parse_commit($hash);
        if (!%co) {
                die_error(undef, "Unknown commit object");


@@ -2402,61 +2921,99 @@ sub git_commitdiff_plain {
        if (!defined $hash_parent) {
                $hash_parent = $co{'parent'} || '--root';
        }
        if (!defined $hash_parent) {
                $hash_parent = $co{'parent'} || '--root';
        }

-       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
-               or die_error(undef, "Open git-diff-tree failed");
-       my @difftree = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading diff-tree failed");

 
 

-       # try to figure out the next tag after this commit
-       my $tagname;
-       my $refs = git_get_references("tags");
-       open $fd, "-|", $GIT, "rev-list", "HEAD";
-       my @commits = map { chomp; $_ } <$fd>;
-       close $fd;
-       foreach my $commit (@commits) {
-               if (defined $refs->{$commit}) {
-                       $tagname = $refs->{$commit}
-               }
-               if ($commit eq $hash) {
-                       last;
+       # read commitdiff
+       my $fd;
+       my @difftree;
+       if ($format eq 'html') {
+               open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C',
+                       "--patch-with-raw", "--full-index", $hash_parent, $hash
+                       or die_error(undef, "Open git-diff-tree failed");
+
+               while (chomp(my $line = <$fd>)) {
+                       # empty line ends raw part of diff-tree output
+                       last unless $line;
+                       push @difftree, $line;

                }
                }

-       }

 
 

-       print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
-       my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
-       my $comment = $co{'comment'};
-       print "From: $co{'author'}\n" .
-             "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
-             "Subject: $co{'title'}\n";
-       if (defined $tagname) {
-               print "X-Git-Tag: $tagname\n";
+       } elsif ($format eq 'plain') {
+               open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-B', $hash_parent, $hash
+                       or die_error(undef, "Open git-diff-tree failed");
+
+       } else {
+               die_error(undef, "Unknown commitdiff format");

        }
        }

-       print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
-             "\n";

 
 

-       foreach my $line (@$comment) {;
-               print "$line\n";
+       # non-textual hash id's can be cached
+       my $expires;
+       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
+               $expires = "+1d";

        }
        }

-       print "---\n\n";

 
 

-       foreach my $line (@difftree) {
-               if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
-                       next;
-               }
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $file = $6;
-               if ($status eq "A") {
-                       git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
-               } elsif ($status eq "D") {
-                       git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
-               } elsif ($status eq "M") {
-                       git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
-               }
+       # write commit message
+       if ($format eq 'html') {
+               my $refs = git_get_references();
+               my $ref = format_ref_marker($refs, $co{'id'});
+               my $formats_nav =
+                       $cgi->a({-href => href(action=>"commitdiff_plain",
+                                              hash=>$hash, hash_parent=>$hash_parent)},
+                               "plain");
+
+               git_header_html(undef, $expires);
+               git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
+               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
+               print "<div class=\"page_body\">\n";
+               print "<div class=\"log\">\n";
+               git_print_simplified_log($co{'comment'}, 1); # skip title
+               print "</div>\n"; # class="log"
+
+       } elsif ($format eq 'plain') {
+               my $refs = git_get_references("tags");
+               my $tagname = git_get_rev_name_tags($hash);
+               my $filename = basename($project) . "-$hash.patch";
+
+               print $cgi->header(
+                       -type => 'text/plain',
+                       -charset => 'utf-8',
+                       -expires => $expires,
+                       -content_disposition => qq(inline; filename="$filename"));
+               my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
+               print <<TEXT;
+From: $co{'author'}
+Date: $ad{'rfc2822'} ($ad{'tz_local'})
+Subject: $co{'title'}
+TEXT
+               print "X-Git-Tag: $tagname\n" if $tagname;
+               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
+
+               foreach my $line (@{$co{'comment'}}) {
+                       print "$line\n";
+               }
+               print "---\n\n";
+       }
+
+       # write patch
+       if ($format eq 'html') {
+               #git_difftree_body(\@difftree, $hash, $hash_parent);
+               #print "<br/>\n";
+
+               git_patchset_body($fd, \@difftree, $hash, $hash_parent);
+               close $fd;
+               print "</div>\n"; # class="page_body"
+               git_footer_html();
+
+       } elsif ($format eq 'plain') {
+               local $/ = undef;
+               print <$fd>;
+               close $fd
+                       or print "Reading git-diff-tree failed\n";

        }
 }
 
        }
 }
 

+sub git_commitdiff_plain {
+       git_commitdiff('plain');
+}
+

 sub git_history {
        if (!defined $hash_base) {
                $hash_base = git_get_head_hash($project);
 sub git_history {
        if (!defined $hash_base) {
                $hash_base = git_get_head_hash($project);


@@ -2476,7 +3033,7 @@ sub git_history {
        if (defined $hash) {
                $ftype = git_get_type($hash);
        }
        if (defined $hash) {
                $ftype = git_get_type($hash);
        }

-       git_print_page_path($file_name, $ftype);
+       git_print_page_path($file_name, $ftype, $hash_base);

 
        open my $fd, "-|",
                $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
 
        open my $fd, "-|",
                $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;


@@ -2544,7 +3101,8 @@ sub git_search {
                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
                              "<td>" .
                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
                              "<td>" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
+                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
+                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");

                        my $comment = $co{'comment'};
                        foreach my $line (@$comment) {
                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
                        my $comment = $co{'comment'};
                        foreach my $line (@$comment) {
                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {


@@ -2559,8 +3117,9 @@ sub git_search {
                        }
                        print "</td>\n" .
                              "<td class=\"link\">" .
                        }
                        print "</td>\n" .
                              "<td class=\"link\">" .

-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
+                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
+                             " | " .
+                             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");

                        print "</td>\n" .
                              "</tr>\n";
                }
                        print "</td>\n" .
                              "</tr>\n";
                }


@@ -2597,18 +3156,22 @@ sub git_search {
                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
                                              "<td>" .
                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
                                              "<td>" .

-                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
-                                             esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
+                                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
+                                                     -class => "list subject"},
+                                                     esc_html(chop_str($co{'title'}, 50)) . "<br/>");

                                        while (my $setref = shift @files) {
                                                my %set = %$setref;
                                        while (my $setref = shift @files) {
                                                my %set = %$setref;

-                                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
-                                                     "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
+                                               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>") .

                                                      "<br/>\n";
                                        }
                                        print "</td>\n" .
                                              "<td class=\"link\">" .
                                                      "<br/>\n";
                                        }
                                        print "</td>\n" .
                                              "<td class=\"link\">" .

-                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
-                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
+                                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
+                                             " | " .
+                                             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");

                                        print "</td>\n" .
                                              "</tr>\n";
                                }
                                        print "</td>\n" .
                                              "</tr>\n";
                                }


@@ -2641,7 +3204,7 @@ sub git_shortlog {
        my $next_link = '';
        if ($#revlist >= (100 * ($page+1)-1)) {
                $next_link =
        my $next_link = '';
        if ($#revlist >= (100 * ($page+1)-1)) {
                $next_link =

-                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)),
+                       $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),

                                 -title => "Alt-n"}, "next");
        }
 
                                 -title => "Alt-n"}, "next");
        }
 


@@ -2665,13 +3228,15 @@ sub git_rss {
        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');
        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 version=\"1.0\" encoding=\"utf-8\"?>\n".
-             "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
-       print "<channel>\n";
-       print "<title>$project</title>\n".
-             "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
-             "<description>$project log</description>\n".
-             "<language>en</language>\n";
+       print <<XML;
+<?xml version="1.0" encoding="utf-8"?>
+<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

 
        for (my $i = 0; $i <= $#revlist; $i++) {
                my $commit = $revlist[$i];
 
        for (my $i = 0; $i <= $#revlist; $i++) {
                my $commit = $revlist[$i];


@@ -2720,13 +3285,15 @@ sub git_opml {
        my @list = git_get_projects_list();
 
        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
        my @list = git_get_projects_list();
 
        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');

-       print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
-             "<opml version=\"1.0\">\n".
-             "<head>".
-             "  <title>$site_name Git OPML Export</title>\n".
-             "</head>\n".
-             "<body>\n".
-             "<outline text=\"git RSS feeds\">\n";
+       print <<XML;
+<?xml version="1.0" encoding="utf-8"?>
+<opml version="1.0">
+<head>
+  <title>$site_name Git OPML Export</title>
+</head>
+<body>
+<outline text="git RSS feeds">
+XML

 
        foreach my $pr (@list) {
                my %proj = %$pr;
 
        foreach my $pr (@list) {
                my %proj = %$pr;


@@ -2745,7 +3312,9 @@ sub git_opml {
                my $html = "$my_url?p=$proj{'path'};a=summary";
                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
        }
                my $html = "$my_url?p=$proj{'path'};a=summary";
                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
        }

-       print "</outline>\n".
-             "</body>\n".
-             "</opml>\n";
+       print <<XML;
+</outline>
+</body>
+</opml>
+XML

 }
 }