* IkiWiki/Plugin/monotone.pm: implement rcs_getmtime

diff --git a/IkiWiki/Plugin/monotone.pm b/IkiWiki/Plugin/monotone.pm
index 38313a542aff9bd231b036ae3d47367f55289578..14c22ebca2f02c69f132ea581bb423aa29f20c24 100644 (file)
--- a/IkiWiki/Plugin/monotone.pm
+++ b/IkiWiki/Plugin/monotone.pm
@@ -703,7 +703,55 @@ sub rcs_getctime ($) {
 }
 
 sub rcs_getmtime ($) {
-       error "rcs_getmtime is not implemented for monotone\n"; # TODO
+       my $file=shift;
+
+       chdir $config{srcdir}
+           or error("Cannot chdir to $config{srcdir}: $!");
+
+       my $child = open(MTNLOG, "-|");
+       if (! $child) {
+               exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
+                    "--brief", $file) || error("mtn log $file failed to run");
+       }
+
+       my $lastRev = "";
+       while (<MTNLOG>) {
+               if (/^($sha1_pattern)/ && $lastRev eq "") {
+                       $lastRev=$1;
+               }
+       }
+       close MTNLOG || debug("mtn log $file exited $?");
+
+       if (! defined $lastRev) {
+               debug "failed to parse mtn log for $file";
+               return 0;
+       }
+
+       my $automator = Monotone->new();
+       $automator->open(undef, $config{mtnrootdir});
+
+       my $certs = [read_certs($automator, $lastRev)];
+
+       $automator->close();
+
+       my $date;
+
+       foreach my $cert (@$certs) {
+               if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
+                       if ($cert->{name} eq "date") {
+                               $date = $cert->{value};
+                       }
+               }
+       }
+
+       if (! defined $date) {
+               debug "failed to find date cert for revision $lastRev when looking for creation time of $file";
+               return 0;
+       }
+
+       $date=str2time($date, 'UTC');
+       debug("found mtime ".localtime($date)." for $file");
+       return $date;
 }
 
 1