gitweb: do not use 'No such directory' error message
[gitweb.git] / gitweb / gitweb.perl
index 2b40aa11e7a56af788b42238d55258aff1d03b60..fa657578fb8800e960606010415bc1d204dd0c8d 100755 (executable)
@@ -48,6 +48,8 @@
 our $stylesheet = "++GITWEB_CSS++";
 # URI of GIT logo
 our $logo = "++GITWEB_LOGO++";
+# URI of GIT favicon, assumed to be image/png type
+our $favicon = "++GITWEB_FAVICON++";
 
 # source of projects list
 our $projects_list = "++GITWEB_LIST++";
                'override' => 0,
                #         => [content-encoding, suffix, program]
                'default' => ['x-gzip', 'gz', 'gzip']},
+
+       'pickaxe' => {
+               'sub' => \&feature_pickaxe,
+               'override' => 0,
+               'default' => [1]},
 );
 
 sub gitweb_check_feature {
@@ -141,6 +148,24 @@ sub feature_snapshot {
        return ($ctype, $suffix, $command);
 }
 
+# To enable system wide have in $GITWEB_CONFIG
+# $feature{'pickaxe'}{'default'} = [1];
+# To have project specific config enable override in $GITWEB_CONFIG
+# $feature{'pickaxe'}{'override'} = 1;
+# and in project config gitweb.pickaxe = 0|1;
+
+sub feature_pickaxe {
+       my ($val) = git_get_project_config('pickaxe', '--bool');
+
+       if ($val eq 'true') {
+               return (1);
+       } elsif ($val eq 'false') {
+               return (0);
+       }
+
+       return ($_[0]);
+}
+
 # rename detection options for git-diff and git-diff-tree
 # - default is '-M', with the cost proportional to
 #   (number of removed files) * (number of new files).
@@ -171,23 +196,14 @@ sub feature_snapshot {
        }
 }
 
-our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
-if (defined $project) {
-       $project =~ s|^/||;
-       $project =~ s|/$||;
-       $project = undef unless $project;
-}
+our $project = $cgi->param('p');
 if (defined $project) {
-       if (!validate_input($project)) {
-               die_error(undef, "Invalid project parameter");
-       }
-       if (!(-d "$projectroot/$project")) {
-               die_error(undef, "No such directory");
-       }
-       if (!(-e "$projectroot/$project/HEAD")) {
+       if (!validate_input($project) ||
+           !(-d "$projectroot/$project") ||
+           !(-e "$projectroot/$project/HEAD")) {
+               undef $project;
                die_error(undef, "No such project");
        }
-       $git_dir = "$projectroot/$project";
 }
 
 our $file_name = $cgi->param('f');
@@ -247,6 +263,32 @@ sub feature_snapshot {
        $searchtext = quotemeta $searchtext;
 }
 
+# now read PATH_INFO and use it as alternative to parameters
+our $path_info = $ENV{"PATH_INFO"};
+$path_info =~ s|^/||;
+$path_info =~ s|/$||;
+if (validate_input($path_info) && !defined $project) {
+       $project = $path_info;
+       while ($project && !-e "$projectroot/$project/HEAD") {
+               $project =~ s,/*[^/]*$,,;
+       }
+       if (defined $project) {
+               $project = undef unless $project;
+       }
+       if ($path_info =~ m,^$project/([^/]+)/(.+)$,) {
+               # we got "project.git/branch/filename"
+               $action    ||= "blob_plain";
+               $hash_base ||= $1;
+               $file_name ||= $2;
+       } elsif ($path_info =~ m,^$project/([^/]+)$,) {
+               # we got "project.git/branch"
+               $action ||= "shortlog";
+               $hash   ||= $1;
+       }
+}
+
+$git_dir = "$projectroot/$project";
+
 # dispatch
 my %actions = (
        "blame" => \&git_blame2,
@@ -271,6 +313,7 @@ sub feature_snapshot {
        # those below don't need $project
        "opml" => \&git_opml,
        "project_list" => \&git_project_list,
+       "project_index" => \&git_project_index,
 );
 
 if (defined $project) {
@@ -300,11 +343,12 @@ (%)
                hash_base => "hb",
                hash_parent_base => "hpb",
                page => "pg",
+               order => "o",
                searchtext => "s",
        );
        my %mapping = @mapping;
 
-       $params{"project"} ||= $project;
+       $params{'project'} = $project unless exists $params{'project'};
 
        my @result = ();
        for (my $i = 0; $i < @mapping; $i += 2) {
@@ -651,19 +695,6 @@ sub git_get_hash_by_path {
 ## ......................................................................
 ## git utility functions, directly accessing git repository
 
-# assumes that PATH is not symref
-sub git_get_hash_by_ref {
-       my $path = shift;
-
-       open my $fd, "$projectroot/$path" or return undef;
-       my $head = <$fd>;
-       close $fd;
-       chomp $head;
-       if ($head =~ m/^[0-9a-fA-F]{40}$/) {
-               return $head;
-       }
-}
-
 sub git_get_project_description {
        my $path = shift;
 
@@ -690,16 +721,26 @@ sub git_get_projects_list {
        if (-d $projects_list) {
                # search in directory
                my $dir = $projects_list;
-               opendir my ($dh), $dir or return undef;
-               while (my $dir = readdir($dh)) {
-                       if (-e "$projectroot/$dir/HEAD") {
-                               my $pr = {
-                                       path => $dir,
-                               };
-                               push @list, $pr
-                       }
-               }
-               closedir($dh);
+               my $pfxlen = length("$dir");
+
+               File::Find::find({
+                       follow_fast => 1, # follow symbolic links
+                       dangling_symlinks => 0, # ignore dangling symlinks, silently
+                       wanted => sub {
+                               # skip project-list toplevel, if we get it.
+                               return if (m!^[/.]$!);
+                               # only directories can be git repositories
+                               return unless (-d $_);
+
+                               my $subdir = substr($File::Find::name, $pfxlen + 1);
+                               # we check related file in $projectroot
+                               if (-e "$projectroot/$subdir/HEAD") {
+                                       push @list, { path => $subdir };
+                                       $File::Find::prune = 1;
+                               }
+                       },
+               }, "$dir");
+
        } elsif (-f $projects_list) {
                # read from file(url-encoded):
                # 'git%2Fgit.git Linus+Torvalds'
@@ -1063,17 +1104,27 @@ sub git_get_refs_list {
        my @reflist;
 
        my @refs;
-       my $pfxlen = length("$projectroot/$project/$ref_dir");
-       File::Find::find(sub {
-               return if (/^\./);
-               if (-f $_) {
-                       push @refs, substr($File::Find::name, $pfxlen + 1);
+       open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
+               or return;
+       while (my $line = <$fd>) {
+               chomp $line;
+               if ($line =~ m/^([0-9a-fA-F]{40})\t$ref_dir\/?([^\^]+)$/) {
+                       push @refs, { hash => $1, name => $2 };
+               } elsif ($line =~ m/^[0-9a-fA-F]{40}\t$ref_dir\/?(.*)\^\{\}$/ &&
+                        $1 eq $refs[-1]{'name'}) {
+                       # most likely a tag is followed by its peeled
+                       # (deref) one, and when that happens we know the
+                       # previous one was of type 'tag'.
+                       $refs[-1]{'type'} = "tag";
                }
-       }, "$projectroot/$project/$ref_dir");
+       }
+       close $fd;
 
-       foreach my $ref_file (@refs) {
-               my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
-               my $type = git_get_type($ref_id) || next;
+       foreach my $ref (@refs) {
+               my $ref_file = $ref->{'name'};
+               my $ref_id   = $ref->{'hash'};
+
+               my $type = $ref->{'type'} || git_get_type($ref_id) || next;
                my %ref_item = parse_ref($ref_file, $ref_id, $type);
 
                push @reflist, \%ref_item;
@@ -1221,6 +1272,16 @@ sub git_header_html {
                printf('<link rel="alternate" title="%s log" '.
                       'href="%s" type="application/rss+xml"/>'."\n",
                       esc_param($project), href(action=>"rss"));
+       } else {
+               printf('<link rel="alternate" title="%s projects list" '.
+                      'href="%s" type="text/plain; charset=utf-8"/>'."\n",
+                      $site_name, href(project=>undef, action=>"project_index"));
+               printf('<link rel="alternate" title="%s projects logs" '.
+                      'href="%s" type="text/x-opml"/>'."\n",
+                      $site_name, href(project=>undef, action=>"opml"));
+       }
+       if (defined $favicon) {
+               print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
        }
 
        print "</head>\n" .
@@ -1268,9 +1329,13 @@ sub git_footer_html {
                if (defined $descr) {
                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
                }
-               print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
+               print $cgi->a({-href => href(action=>"rss"),
+                             -class => "rss_logo"}, "RSS") . "\n";
        } else {
-               print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
+               print $cgi->a({-href => href(project=>undef, action=>"opml"),
+                             -class => "rss_logo"}, "OPML") . " ";
+               print $cgi->a({-href => href(project=>undef, action=>"project_index"),
+                             -class => "rss_logo"}, "TXT") . "\n";
        }
        print "</div>\n" .
              "</body>\n" .
@@ -1400,19 +1465,32 @@ sub git_print_page_path {
 
        if (!defined $name) {
                print "<div class=\"page_path\">/</div>\n";
-       } elsif (defined $type && $type eq 'blob') {
+       } else {
+               my @dirname = split '/', $name;
+               my $basename = pop @dirname;
+               my $fullname = '';
+
                print "<div class=\"page_path\">";
-               if (defined $hb) {
+               foreach my $dir (@dirname) {
+                       $fullname .= $dir . '/';
+                       print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
+                                                    hash_base=>$hb),
+                                     -title => $fullname}, esc_html($dir));
+                       print "/";
+               }
+               if (defined $type && $type eq 'blob') {
                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
-                                                    hash_base=>$hb)},
-                                     esc_html($name));
+                                                    hash_base=>$hb),
+                                     -title => $name}, esc_html($basename));
+               } elsif (defined $type && $type eq 'tree') {
+                       print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
+                                                    hash_base=>$hb),
+                                     -title => $name}, esc_html($basename));
+                       print "/";
                } else {
-                       print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
-                                     esc_html($name));
+                       print esc_html($basename);
                }
                print "<br/></div>\n";
-       } else {
-               print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
        }
 }
 
@@ -1587,7 +1665,7 @@ sub git_difftree_body {
                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
                                                     hash_base=>$hash, file_name=>$diff{'file'})},
                                      "blob");
-                       if ($action == "commitdiff") {
+                       if ($action eq 'commitdiff') {
                                # link to patch
                                $patchno++;
                                print " | " .
@@ -1608,7 +1686,7 @@ sub git_difftree_body {
                                                     hash_base=>$parent, file_name=>$diff{'file'})},
                                      "blob") .
                              " | ";
-                       if ($action == "commitdiff") {
+                       if ($action eq 'commitdiff') {
                                # link to patch
                                $patchno++;
                                print " | " .
@@ -1654,7 +1732,7 @@ sub git_difftree_body {
                                                     hash_base=>$hash, file_name=>$diff{'file'})},
                                      "blob");
                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
-                               if ($action == "commitdiff") {
+                               if ($action eq 'commitdiff') {
                                        # link to patch
                                        $patchno++;
                                        print " | " .
@@ -1696,7 +1774,7 @@ sub git_difftree_body {
                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
                                      "blob");
                        if ($diff{'to_id'} ne $diff{'from_id'}) {
-                               if ($action == "commitdiff") {
+                               if ($action eq 'commitdiff') {
                                        # link to patch
                                        $patchno++;
                                        print " | " .
@@ -1892,12 +1970,15 @@ sub git_shortlog_body {
 
 sub git_history_body {
        # Warning: assumes constant type (blob or tree) during history
-       my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
+       my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
+
+       $from = 0 unless defined $from;
+       $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
 
        print "<table class=\"history\" cellspacing=\"0\">\n";
        my $alternate = 0;
-       while (my $line = <$fd>) {
-               if ($line !~ m/^([0-9a-fA-F]{40})/) {
+       for (my $i = $from; $i <= $to; $i++) {
+               if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
                        next;
                }
 
@@ -2101,7 +2182,7 @@ sub git_project_list {
                print "<th>Project</th>\n";
        } else {
                print "<th>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
+                     $cgi->a({-href => href(project=>undef, order=>'project'),
                               -class => "header"}, "Project") .
                      "</th>\n";
        }
@@ -2110,7 +2191,7 @@ sub git_project_list {
                print "<th>Description</th>\n";
        } else {
                print "<th>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
+                     $cgi->a({-href => href(project=>undef, order=>'descr'),
                               -class => "header"}, "Description") .
                      "</th>\n";
        }
@@ -2119,7 +2200,7 @@ sub git_project_list {
                print "<th>Owner</th>\n";
        } else {
                print "<th>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
+                     $cgi->a({-href => href(project=>undef, order=>'owner'),
                               -class => "header"}, "Owner") .
                      "</th>\n";
        }
@@ -2128,7 +2209,7 @@ sub git_project_list {
                print "<th>Last Change</th>\n";
        } else {
                print "<th>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
+                     $cgi->a({-href => href(project=>undef, order=>'age'),
                               -class => "header"}, "Last Change") .
                      "</th>\n";
        }
@@ -2159,6 +2240,30 @@ sub git_project_list {
        git_footer_html();
 }
 
+sub git_project_index {
+       my @projects = git_get_projects_list();
+
+       print $cgi->header(
+               -type => 'text/plain',
+               -charset => 'utf-8',
+               -content_disposition => qq(inline; filename="index.aux"));
+
+       foreach my $pr (@projects) {
+               if (!exists $pr->{'owner'}) {
+                       $pr->{'owner'} = get_file_owner("$projectroot/$project");
+               }
+
+               my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
+               # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
+               $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
+               $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
+               $path  =~ s/ /\+/g;
+               $owner =~ s/ /\+/g;
+
+               print "$path $owner\n";
+       }
+}
+
 sub git_summary {
        my $descr = git_get_project_description($project) || "none";
        my $head = git_get_head_hash($project);
@@ -2439,11 +2544,7 @@ sub git_heads {
 }
 
 sub git_blob_plain {
-       # blobs defined by non-textual hash id's can be cached
        my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
 
        if (!defined $hash) {
                if (defined $file_name) {
@@ -2453,7 +2554,11 @@ sub git_blob_plain {
                } else {
                        die_error(undef, "No file name defined");
                }
+       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
+               # blobs defined by non-textual hash id's can be cached
+               $expires = "+1d";
        }
+
        my $type = shift;
        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
                or die_error(undef, "Couldn't cat $file_name, $hash");
@@ -2481,11 +2586,7 @@ sub git_blob_plain {
 }
 
 sub git_blob {
-       # blobs defined by non-textual hash id's can be cached
        my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
 
        if (!defined $hash) {
                if (defined $file_name) {
@@ -2495,7 +2596,11 @@ sub git_blob {
                } else {
                        die_error(undef, "No file name defined");
                }
+       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
+               # blobs defined by non-textual hash id's can be cached
+               $expires = "+1d";
        }
+
        my ($have_blame) = gitweb_check_feature('blame');
        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
                or die_error(undef, "Couldn't cat $file_name, $hash");
@@ -3073,29 +3178,70 @@ sub git_history {
        if (!defined $hash_base) {
                $hash_base = git_get_head_hash($project);
        }
+       if (!defined $page) {
+               $page = 0;
+       }
        my $ftype;
        my %co = parse_commit($hash_base);
        if (!%co) {
                die_error(undef, "Unknown commit object");
        }
+
        my $refs = git_get_references();
-       git_header_html();
-       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
+
        if (!defined $hash && defined $file_name) {
                $hash = git_get_hash_by_path($hash_base, $file_name);
        }
        if (defined $hash) {
                $ftype = git_get_type($hash);
        }
-       git_print_page_path($file_name, $ftype, $hash_base);
 
        open my $fd, "-|",
-               git_cmd(), "rev-list", "--full-history", $hash_base, "--", $file_name;
+               git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
+                       or die_error(undef, "Open git-rev-list-failed");
+       my @revlist = map { chomp; $_ } <$fd>;
+       close $fd
+               or die_error(undef, "Reading git-rev-list failed");
 
-       git_history_body($fd, $refs, $hash_base, $ftype);
+       my $paging_nav = '';
+       if ($page > 0) {
+               $paging_nav .=
+                       $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
+                                              file_name=>$file_name)},
+                               "first");
+               $paging_nav .= " &sdot; " .
+                       $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
+                                              file_name=>$file_name, page=>$page-1),
+                                -accesskey => "p", -title => "Alt-p"}, "prev");
+       } else {
+               $paging_nav .= "first";
+               $paging_nav .= " &sdot; prev";
+       }
+       if ($#revlist >= (100 * ($page+1)-1)) {
+               $paging_nav .= " &sdot; " .
+                       $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
+                                              file_name=>$file_name, page=>$page+1),
+                                -accesskey => "n", -title => "Alt-n"}, "next");
+       } else {
+               $paging_nav .= " &sdot; next";
+       }
+       my $next_link = '';
+       if ($#revlist >= (100 * ($page+1)-1)) {
+               $next_link =
+                       $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
+                                              file_name=>$file_name, page=>$page+1),
+                                -title => "Alt-n"}, "next");
+       }
+
+       git_header_html();
+       git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
+       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       git_print_page_path($file_name, $ftype, $hash_base);
+
+       git_history_body(\@revlist, ($page * 100), $#revlist,
+                        $refs, $hash_base, $ftype, $next_link);
 
-       close $fd;
        git_footer_html();
 }
 
@@ -3110,8 +3256,7 @@ sub git_search {
        if (!%co) {
                die_error(undef, "Unknown commit object");
        }
-       # pickaxe may take all resources of your box and run for several minutes
-       # with every query - so decide by yourself how public you make this feature :)
+
        my $commit_search = 1;
        my $author_search = 0;
        my $committer_search = 0;
@@ -3123,6 +3268,13 @@ sub git_search {
        } elsif ($searchtext =~ s/^pickaxe\\://i) {
                $commit_search = 0;
                $pickaxe_search = 1;
+
+               # pickaxe may take all resources of your box and run for several minutes
+               # with every query - so decide by yourself how public you make this feature
+               my ($have_pickaxe) = gitweb_check_feature('pickaxe');
+               if (!$have_pickaxe) {
+                       die_error('403 Permission denied', "Permission denied");
+               }
        }
        git_header_html();
        git_print_page_nav('','', $hash,$co{'tree'},$hash);