X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=contrib%2Fhooks%2Fupdate-paranoid;h=d18b317b2f018d1d1a5a9677a7bdaf8956d65186;hb=3fcee259d023087184c63eedf1015be6e23ea6e1;hp=84ed4524803b4662f2c1a0ff336bcfb1966d2c0d;hpb=d47eed3272311acf16f136c49b0bb341c9a6e39c;p=git.git

diff --git a/contrib/hooks/update-paranoid b/contrib/hooks/update-paranoid
index 84ed45248..d18b317b2 100644
--- a/contrib/hooks/update-paranoid
+++ b/contrib/hooks/update-paranoid
@@ -136,6 +136,7 @@ sub parse_config ($$$$) {
 	local $ENV{GIT_DIR} = shift;
 	my $br = shift;
 	my $fn = shift;
+	return unless git_value('rev-list','--max-count=1',$br,'--',$fn);
 	info "Loading $br:$fn";
 	open(I,'-|','git','cat-file','blob',"$br:$fn");
 	my $section = '';
@@ -223,20 +224,29 @@ sub load_diff ($) {
 	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}$/) {
+			# Don't load the diff at all; we are making the
+			# branch and have no base to compare to in this
+			# case.  A file level ACL makes no sense in this
+			# context.  Having an empty diff will allow the
+			# branch creation.
+			#
+		} 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;
 	}
@@ -249,6 +259,7 @@ deny "Refusing funny ref $ref" unless $ref =~ s,^refs/,,;
 deny "Bad old value $old" unless $old =~ /^[a-z0-9]{40}$/;
 deny "Bad new value $new" unless $new =~ /^[a-z0-9]{40}$/;
 deny "Cannot determine who you are." unless $this_user;
+grant "No change requested." if $old eq $new;
 
 $repository_name = File::Spec->rel2abs($git_dir);
 $repository_name =~ m,/([^/]+)(?:\.git|/\.git)$,;