X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=Debian%2FDgit.pm;h=5953490e41bb919db1eb8ab1405d75e2094bb784;hb=3c47422924b4a4263ff72c523cbf706eb7945b6c;hp=f33b173ca9bdac1424757b1d7c3adb022bda57da;hpb=13161881906ef646bf3a40d3ed343cfbdd50657a;p=dgit.git

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index f33b173c..5953490e 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -16,6 +16,7 @@ BEGIN {
     @ISA         = qw(Exporter);
     @EXPORT      = qw(debiantag server_branch server_ref
                       stat_exists git_for_each_ref
+                      git_for_each_tag_referring
                       $package_re $component_re $branchprefix
                       initdebug enabledebug enabledebuglevel
                       printdebug debugcmd
@@ -59,12 +60,12 @@ sub git_for_each_ref ($$) {
     # calls $func->($objid,$objtype,$fullrefname,$reftail);
     # $reftail is RHS of ref after refs/\w+/
     # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
-    my $fh = new IO::File "-|", qw(git for-each-ref), $pattern or die $!;
-    while (<$fh>) {
+    open GFER, "-|", qw(git for-each-ref), $pattern or die $!;
+    while (<GFER>) {
 	m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
 	$func->($1,$2,$3,$4);
     }
-    $!=0; $?=0; close $fh or die "$pattern $? $!";
+    $!=0; $?=0; close GFER or die "$pattern $? $!";
 }
 
 sub git_for_each_tag_referring ($$) {
@@ -93,8 +94,12 @@ sub enabledebug () {
 }
     
 sub enabledebuglevel ($) {
+    my ($newlevel) = @_; # may be undef (eg from env var)
     die if $debuglevel;
-    ($debuglevel) = @_ + 0;
+    $newlevel //= 0;
+    $newlevel += 0;
+    return unless $newlevel;
+    $debuglevel = $newlevel;
     enabledebug();
 }