From d75604757ac29646e3ded5ca4e671340bf004ed0 Mon Sep 17 00:00:00 2001
From: Aaron Taylor <ataylor@subgeniuskitty.com>
Date: Thu, 5 Nov 2020 10:13:12 +0000
Subject: [PATCH] Modified gitweb 'summary' page to display filesystem tree
 plus README.

---
 gitweb.cgi | 134 +++++++++++++++++++++++++++++++++++------------------
 1 file changed, 88 insertions(+), 46 deletions(-)

diff --git a/gitweb.cgi b/gitweb.cgi
index a3b31ce..d83d5e1 100755
--- a/gitweb.cgi
+++ b/gitweb.cgi
@@ -6585,20 +6585,39 @@ sub git_summary {
 	my @forklist;
 	my $check_forks = gitweb_check_feature('forks');
 
-	if ($check_forks) {
-		# find forks of a project
-		my $filter = $project;
-		$filter =~ s/\.git$//;
-		@forklist = git_get_projects_list($filter);
-		# filter out forks of forks
-		@forklist = filter_forks_from_projects_list(\@forklist)
-			if (@forklist);
+
+	if (!defined $hash_base) {
+		$hash_base = "HEAD";
+	}
+	if (!defined $hash) {
+		if (defined $file_name) {
+			$hash = git_get_hash_by_path($hash_base, $file_name, "tree");
+		} else {
+			$hash = $hash_base;
+		}
+	}
+	die_error(404, "No such tree") unless defined($hash);
+
+	my $show_sizes = gitweb_check_feature('show-sizes');
+	my $have_blame = gitweb_check_feature('blame');
+
+	my @entries = ();
+	{
+		local $/ = "\0";
+		open my $fd, "-|", git_cmd(), "ls-tree", '-z',
+			($show_sizes ? '-l' : ()), @extra_options, $hash
+			or die_error(500, "Open git-ls-tree failed");
+		@entries = map { chomp; $_ } <$fd>;
+		close $fd
+			or die_error(404, "Reading tree failed");
 	}
 
+	my $refs = git_get_references();
+	my $ref = format_ref_marker($refs, $hash_base);
 	git_header_html();
 	git_print_page_nav('summary','', $head);
+	my $basedir = '';
 
-	print "<div class=\"title\">&nbsp;</div>\n";
 	print "<table class=\"projects_list\">\n" .
 	      "<tr id=\"metadata_desc\"><td>description</td><td>" . esc_html($descr) . "</td></tr>\n";
         if ($owner and not $omit_owner) {
@@ -6637,50 +6656,73 @@ sub git_summary {
 
 	print "</table>\n";
 
-	# If XSS prevention is on, we don't include README.html.
-	# TODO: Allow a readme in some safe format.
-	if (!$prevent_xss && -s "$projectroot/$project/README.html") {
-		print "<div class=\"title\">readme</div>\n" .
-		      "<div class=\"readme\">\n";
-		insert_file("$projectroot/$project/README.html");
-		print "\n</div>\n"; # class="readme"
-	}
+	print "<div class=\"page_body\">\n";
+	print "<table class=\"tree\">\n";
+	my $alternate = 1;
+	# '..' (top directory) link if possible
+	if (defined $hash_base &&
+	    defined $file_name && $file_name =~ m![^/]+$!) {
+		if ($alternate) {
+			print "<tr class=\"dark\">\n";
+		} else {
+			print "<tr class=\"light\">\n";
+		}
+		$alternate ^= 1;
 
-	# we need to request one more than 16 (0..15) to check if
-	# those 16 are all
-	my @commitlist = $head ? parse_commits($head, 17) : ();
-	if (@commitlist) {
-		git_print_header_div('shortlog');
-		git_shortlog_body(\@commitlist, 0, 15, $refs,
-		                  $#commitlist <=  15 ? undef :
-		                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
-	}
+		my $up = $file_name;
+		$up =~ s!/?[^/]+$!!;
+		undef $up unless $up;
+		# based on git_print_tree_entry
+		print '<td class="mode">' . mode_str('040000') . "</td>\n";
+		print '<td class="size">&nbsp;</td>'."\n" if $show_sizes;
+		print '<td class="list">';
+		print $cgi->a({-href => href(action=>"tree",
+		                             hash_base=>$hash_base,
+		                             file_name=>$up)},
+		              "..");
+		print "</td>\n";
+		print "<td class=\"link\"></td>\n";
 
-	if (@taglist) {
-		git_print_header_div('tags');
-		git_tags_body(\@taglist, 0, 15,
-		              $#taglist <=  15 ? undef :
-		              $cgi->a({-href => href(action=>"tags")}, "..."));
+		print "</tr>\n";
 	}
+	foreach my $line (@entries) {
+		my %t = parse_ls_tree_line($line, -z => 1, -l => $show_sizes);
 
-	if (@headlist) {
-		git_print_header_div('heads');
-		git_heads_body(\@headlist, $head, 0, 15,
-		               $#headlist <= 15 ? undef :
-		               $cgi->a({-href => href(action=>"heads")}, "..."));
-	}
+		if ($alternate) {
+			print "<tr class=\"dark\">\n";
+		} else {
+			print "<tr class=\"light\">\n";
+		}
+		$alternate ^= 1;
 
-	if (%remotedata) {
-		git_print_header_div('remotes');
-		git_remotes_body(\%remotedata, 15, $head);
+		git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
+
+		print "</tr>\n";
 	}
+	print "</table>\n" .
+	      "</div>";
 
-	if (@forklist) {
-		git_print_header_div('forks');
-		git_project_list_body(\@forklist, 'age', 0, 15,
-		                      $#forklist <= 15 ? undef :
-		                      $cgi->a({-href => href(action=>"forks")}, "..."),
-		                      'no_header');
+	# If present, print one of the following, in order:
+	# 	README.md, README.txt, README, README.html.
+	my $cwd_path = "$projectroot/$project";
+	$cwd_path =~ s/\.git$//;
+	$cwd_path = $cwd_path . $basedir;
+	if (!$prevent_xss && -s $cwd_path . "README.md") {
+		print "<div class=\"readme\">\n";
+		insert_markdown_file($cwd_path . "README.md");
+		print "\n</div>\n"; # class="readme"
+	} elsif (!$prevent_xss && -s $cwd_path . "README.txt") {
+		print "<div class=\"readme\">\n";
+		insert_text_file($cwd_path . "README.txt");
+		print "\n</div>\n"; # class="readme"
+	} elsif (!$prevent_xss && -s $cwd_path . "README") {
+		print "<div class=\"readme\">\n";
+		insert_text_file($cwd_path . "README");
+		print "\n</div>\n"; # class="readme"
+	} elsif (!$prevent_xss && -s $cwd_path . "README.html") {
+		print "<div class=\"readme\">\n";
+		insert_html_file($cwd_path . "README.html");
+		print "\n</div>\n"; # class="readme"
 	}
 
 	git_footer_html();
-- 
2.20.1