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[git.ikiwiki.info.git] / IkiWiki / Plugin / monotone.pm

diff --git a/IkiWiki/Plugin/monotone.pm b/IkiWiki/Plugin/monotone.pm
index 02690b10e6388f54bb6b85fbf42a9fa5b94c6dfc..1d89e3f6b1cd6d9fc887ae539a97b17301ac5e62 100644 (file)
--- a/IkiWiki/Plugin/monotone.pm
+++ b/IkiWiki/Plugin/monotone.pm
@@ -9,6 +9,7 @@ use Date::Parse qw(str2time);
 use Date::Format qw(time2str);
 
 my $sha1_pattern = qr/[0-9a-fA-F]{40}/; # pattern to validate sha1sums
+my $mtn_version = undef;
 
 sub import {
        hook(type => "checkconfig", id => "monotone", call => \&checkconfig);
@@ -40,20 +41,19 @@ sub checkconfig () {
                exec("mtn", "version") || error("mtn version failed to run");
        }
 
-       my $version=undef;
        while (<MTN>) {
                if (/^monotone (\d+\.\d+)(?:(?:\.\d+){0,2}|dev)? /) {
-                       $version=$1;
+                       $mtn_version=$1;
                }
        }
 
        close MTN || debug("mtn version exited $?");
 
-       if (!defined($version)) {
+       if (!defined($mtn_version)) {
                error("Cannot determine monotone version");
        }
-       if ($version < 0.38) {
-               error("Monotone version too old, is $version but required 0.38");
+       if ($mtn_version < 0.38) {
+               error("Monotone version too old, is $mtn_version but required 0.38");
        }
 
        if (defined $config{mtn_wrapper} && length $config{mtn_wrapper}) {
@@ -621,8 +621,9 @@ sub rcs_recentchanges ($) {
        return @ret;
 }
 
-sub rcs_diff ($) {
+sub rcs_diff ($;$) {
        my $rev=shift;
+       my $maxlines=shift;
        my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint
        
        chdir $config{srcdir}
@@ -633,7 +634,11 @@ sub rcs_diff ($) {
                exec("mtn", "diff", "--root=$config{mtnrootdir}", "-r", "p:".$sha1, "-r", $sha1) || error("mtn diff $sha1 failed to run");
        }
 
-       my (@lines) = <MTNDIFF>;
+       my @lines;
+       while (my $line=<MTNDIFF>) {
+               last if defined $maxlines && @lines == $maxlines;
+               push @lines, $line;
+       }
 
        close MTNDIFF || debug("mtn diff $sha1 exited $?");
 
@@ -657,9 +662,11 @@ sub rcs_getctime ($) {
                     "--brief", $file) || error("mtn log $file failed to run");
        }
 
+       my $prevRev;
        my $firstRev;
        while (<MTNLOG>) {
                if (/^($sha1_pattern)/) {
+                       $prevRev=$firstRev;
                        $firstRev=$1;
                }
        }
@@ -673,6 +680,17 @@ sub rcs_getctime ($) {
        my $automator = Monotone->new();
        $automator->open(undef, $config{mtnrootdir});
 
+       # mtn 0.48 has a bug that makes it list the creation of parent
+       # directories as last (first) log entry...  So when we're dealing
+       # with that version, let's check that the file we're looking for
+       # is actually part of the last (first) revision.  Otherwise, pick
+       # the one before (after) that one.
+       if ($mtn_version == 0.48) {
+               my $changes = [get_changed_files($automator, $firstRev)];
+               if (! exists {map { $_ => 1 } @$changes}->{$file}) {
+                       $firstRev = $prevRev;
+               }
+       }
        my $certs = [read_certs($automator, $firstRev)];
 
        $automator->close();
@@ -698,7 +716,55 @@ sub rcs_getctime ($) {
 }
 
 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;
 }
 
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