From 444896a3a9780647f751966f2c0b26f39c5cd8d3 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 17 Mar 2015 22:40:04 +0000
Subject: [PATCH] Honour policy hook

---
 infra/dgit-repos-server | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/infra/dgit-repos-server b/infra/dgit-repos-server
index c20eb68f..8162fa10 100755
--- a/infra/dgit-repos-server
+++ b/infra/dgit-repos-server
@@ -188,6 +188,18 @@ sub runcmd {
     die "@_ $? $!" if $r;
 }
 
+sub policyhook {
+    my ($policyallowbits, @polargs) = @_;
+    # => ($exitstatuspolicybitmap, $policylockfh);
+    die if $policyallowbits & ~0x3e;
+    my @cmd = ($policyhook,$distro,$repos,@polargs);
+    debugcmd @_;
+    my $r = system @_;
+    die "system: $!" if $r < 0;
+    die "hook (@cmd) failed ($?)" if $r & ~($policyallowbits << 8);
+    return $r >> 8;
+}
+
 #----- git-receive-pack -----
 
 sub fixmissing__git_receive_pack () {
@@ -492,11 +504,15 @@ sub checks () {
     debug "translated version $v";
     $tagname eq "debian/$v" or die;
 
+    my ($policy) = policyhook(2,'push',$package,
+			      $version,$suite,$tagname,
+			      join(",",@delberatelies));
+
     checksuite();
 
     # check that our ref is being fast-forwarded
     debug "oldcommit $oldcommit";
-    if ($oldcommit =~ m/[^0]/) {
+    if (!($policy & 2) && $oldcommit =~ m/[^0]/) {
 	$?=0; $!=0; my $mb = `git merge-base $commit $oldcommit`;
 	chomp $mb;
 	$mb eq $oldcommit or reject "not fast forward on dgit branch";
@@ -615,6 +631,17 @@ sub parseargsdispatch () {
 
     reject "unknown method" unless $mainfunc;
 
+    my ($policy, $pollock) = policyhook(4, 'check-package',$package);
+    if ($policy & 4) {
+	my $garbagerepo = "$dgitrepos/_tmp/${package}_garbage";
+	acquiretree($garbagerepo,1);
+	rmtree $garbagerepo;
+	rename $realdestrepo, $garbagerepo
+	    or $! == ENOENT
+	    or die "rename repo $destrepo to $garbagerepo: $!";
+    }
+    close $pollock or die $!;
+
     if (stat $realdestrepo) {
 	$destrepo = $realdestrepo;
     } else {
-- 
2.30.2