X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=Debian%2FDgit.pm;h=268439afaa44e5cdfdf4e9addb0dcf3c43a7ca87;hb=36e0e040510db972a92ee25a7eed67c2700407e1;hp=8b29ba2746be30267b9cef7cf73ff60b3d95e25e;hpb=8afbacc6da4ad5ccaf931d113df175bef22cc7b1;p=dgit.git

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 8b29ba27..268439af 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -1,10 +1,12 @@
-#
+# -*- perl -*-
 
 package Debian::Dgit;
 
 use strict;
 use warnings;
 
+use POSIX;
+
 BEGIN {
     use Exporter   ();
     our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
@@ -12,10 +14,10 @@ BEGIN {
     $VERSION     = 1.00;
     @ISA         = qw(Exporter);
     @EXPORT      = qw(debiantag server_branch server_ref
-                      stat_exists
+                      stat_exists git_for_each_ref
                       $package_re $branchprefix);
-    %EXPORT_TAGS = ( policyflags => qw() );
-    @EXPORT_OK   = qw();
+    %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
+    @EXPORT_OK   = @{ $EXPORT_TAGS{policyflags} };
 }
 
 our @EXPORT_OK;
@@ -23,17 +25,12 @@ our @EXPORT_OK;
 our $package_re = '[0-9a-z][-+.0-9a-z]*';
 our $branchprefix = 'dgit';
 
-
 # policy hook exit status bits
-# any unexpected bits mean failure, and then known set bits are ignored
-
+# see dgit-repos-server head comment for documentation
+# 1 is reserved in case something fails with `exit 1'
 sub NOFFCHECK () { return 2; }
-# suppress dgit-repos-server's ff check ("push" only)
-
 sub FRESHREPO () { return 4; }
-# blow away repo right away (ie, as if before push or fetch)
-# ("check-package" and "push" only)
-
+# 128 is reserved
 
 sub debiantag ($) { 
     my ($v) = @_;
@@ -51,4 +48,28 @@ sub stat_exists ($) {
     die "stat $f: $!";
 }
 
+sub git_for_each_ref ($$) {
+    my ($pattern,$func) = @_;
+    # calls $func->($objid,$objtype,$fullrefname,$reftail);
+    # $reftail is RHS of ref after refs/\w+/
+    # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
+    my $fh = new IO::File "-|", qw(git for-each-ref), $pattern or die $!;
+    while (<$fh>) {
+	m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
+	$func->($1,$2,$3,$4);
+    }
+    $!=0; $?=0; close $fh or die "$pattern $? $!";
+}
+
+sub git_for_each_tag_referring ($$) {
+    my ($objreferring, $func) = @_;
+    # calls $func->($objid,$fullrefname,$tagname);
+    git_for_each_ref('refs/tags', sub {
+	my ($objid,$objtype,$fullrefname,$tagname) = @_;
+	next unless $objtype eq 'tag';
+	next if defined $objreferring and $objid ne $objreferring;
+	$func->($objid,$fullrefname,$tagname);
+    });
+}
+
 1;