1 files changed, 50 insertions, 0 deletions
diff --git a/lib/PublicInbox/RepoGitQuery.pm b/lib/PublicInbox/RepoGitQuery.pm
new file mode 100644
index 00000000..6a560d48
--- /dev/null
+++ b/lib/PublicInbox/RepoGitQuery.pm
@@ -0,0 +1,50 @@
+# Copyright (C) 2015 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# query parameter management for repobrowse
+package PublicInbox::RepoGitQuery;
+use strict;
+use warnings;
+use PublicInbox::Hval;
+use URI::Escape qw(uri_unescape);
+my @KNOWN_PARAMS = qw(ofs);
+
+sub new {
+        my ($class, $env) = @_;
+        # we don't care about multi-value
+        my %tmp = map {
+                my ($k, $v) = split('=', uri_unescape($_), 2);
+                $v = '' unless defined $v;
+                $v =~ tr/+/ /;
+                ($k, $v)
+        } split(/[&;]/, $env->{QUERY_STRING});
+
+        my $self = {};
+        foreach (@KNOWN_PARAMS) {
+                my $v = $tmp{$_};
+                $self->{$_} = defined $v ? $v : '';
+        }
+        bless $self, $class;
+}
+
+sub qs {
+        my ($self, %over) = @_;
+
+        if (keys %over) {
+                my $tmp = bless { %$self }, ref($self);
+                foreach my $k (keys %over) { $tmp->{$k} = $over{$k}; }
+                $self = $tmp;
+        }
+
+        my @qs;
+        foreach my $k (@KNOWN_PARAMS) {
+                my $v = $self->{$k};
+
+                next if ($v eq '');
+                $v = PublicInbox::Hval->new($v)->as_href;
+                push @qs, "$k=$v";
+        }
+        scalar(@qs) ? ('?' . join('&amp;', @qs)) : '';
+}
+
+1;