nmbug: allow empty prefix

[notmuch] / devel / nmbug / nmbug

diff --git a/devel/nmbug/nmbug b/devel/nmbug/nmbug
index 73d64fe5f90735cdd3c0ede8efec62889ab62896..90d98b63cc30faa82e6cae364cbbf4fe97c6f7ee 100755 (executable)
--- a/devel/nmbug/nmbug
+++ b/devel/nmbug/nmbug
@@ -13,10 +13,7 @@ my $NMBGIT = $ENV{NMBGIT} || $ENV{HOME}.'/.nmbug';
 
 $NMBGIT .= '/.git' if (-d $NMBGIT.'/.git');
 
-my $TAGPREFIX = $ENV{NMBPREFIX} || 'notmuch::';
-
-# magic hash for git
-my $EMPTYBLOB = 'e69de29bb2d1d6434b8b29ae775ad8c2e48c5391';
+my $TAGPREFIX = defined($ENV{NMBPREFIX}) ? $ENV{NMBPREFIX} : 'notmuch::';
 
 # for encoding
 
@@ -50,6 +47,9 @@ if (!exists $command{$subcommand}) {
   usage ();
 }
 
+# magic hash for git
+my $EMPTYBLOB = git (qw{hash-object -t blob /dev/null});
+
 &{$command{$subcommand}}(@ARGV);
 
 sub git_pipe {