Move stat_exists to Dgit.pm

[dgit.git] / Debian / Dgit.pm

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index b93477402c72dc3a3662c7a99cab81d6735b66b2..8b29ba2746be30267b9cef7cf73ff60b3d95e25e 100644 (file)
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -11,8 +11,9 @@ BEGIN {
 
     $VERSION     = 1.00;
     @ISA         = qw(Exporter);
-    @EXPORT      = qw(debiantag
-                      $package_re);
+    @EXPORT      = qw(debiantag server_branch server_ref
+                      stat_exists
+                      $package_re $branchprefix);
     %EXPORT_TAGS = ( policyflags => qw() );
     @EXPORT_OK   = qw();
 }
@@ -20,6 +21,7 @@ BEGIN {
 our @EXPORT_OK;
 
 our $package_re = '[0-9a-z][-+.0-9a-z]*';
+our $branchprefix = 'dgit';
 
 
 # policy hook exit status bits
@@ -39,4 +41,14 @@ sub debiantag ($) {
     return "debian/$v";
 }
 
+sub server_branch ($) { return "$branchprefix/$_[0]"; }
+sub server_ref ($) { return "refs/".server_branch($_[0]); }
+
+sub stat_exists ($) {
+    my ($f) = @_;
+    return 1 if stat $f;
+    return 0 if $!==&ENOENT;
+    die "stat $f: $!";
+}
+
 1;