contrib/hooks/post-receive-email: remove cruft, $committer is not used

diff --git a/contrib/hooks/update-paranoid b/contrib/hooks/update-paranoid
index 84ed4524803b4662f2c1a0ff336bcfb1966d2c0d..068fa3708331bbb7d451040715c8bba9623f8c7e 100644 (file)
--- a/contrib/hooks/update-paranoid
+++ b/contrib/hooks/update-paranoid
@@ -223,20 +223,31 @@ sub load_diff ($) {
        my $d = $diff_cache{$base};
        unless ($d) {
                local $/ = "\0";
-               open(T,'-|','git','diff-tree',
-                       '-r','--name-status','-z',
-                       $base,$new) or return undef;
                my %this_diff;
-               while (<T>) {
-                       my $op = $_;
-                       chop $op;
+               if ($base =~ /^0{40}$/) {
+                       open(T,'-|','git','ls-tree',
+                               '-r','--name-only','-z',
+                               $new) or return undef;
+                       while (<T>) {
+                               chop;
+                               $this_diff{$_} = 'A';
+                       }
+                       close T or return undef;
+               } else {
+                       open(T,'-|','git','diff-tree',
+                               '-r','--name-status','-z',
+                               $base,$new) or return undef;
+                       while (<T>) {
+                               my $op = $_;
+                               chop $op;
 
-                       my $path = <T>;
-                       chop $path;
+                               my $path = <T>;
+                               chop $path;
 
-                       $this_diff{$path} = $op;
+                               $this_diff{$path} = $op;
+                       }
+                       close T or return undef;
                }
-               close T or return undef;
                $d = \%this_diff;
                $diff_cache{$base} = $d;
        }