support _multi.changes

2 files changed, 14 insertions, 7 deletions

diff --git a/dgit b/dgit
index eb263b1..d61cea7 100755
--- a/dgit
+++ b/dgit
@@ -772,12 +772,18 @@ sub dopush () {
     $dsc->{$ourdscfield} = rev_parse('HEAD');
     $dsc->save("../$dscfn.tmp") or die $!;
     if (!$changesfile) {
-	my $pat = "${package}_c$version_*.changes";
-	my @cs = glob "../$pat";
-	fail "failed to find unique changes file".
-	    " (looked for $pat in ..); perhaps you need to use dgit -C"
-	    unless @cs==1;
-	($changesfile) = @cs;
+	my $multi = "${package}_${cversion}_multi.changes";
+	if (stat $multi) {
+	    $changesfile = $multi;
+	} else {
+	    $!==&ENOENT or die "$multi: $!";
+	    my $pat = "${package}_${cversion}_*.changes";
+	    my @cs = glob "../$pat";
+	    fail "failed to find unique changes file".
+		" (looked for $pat in ..); perhaps you need to use dgit -C"
+		unless @cs==1;
+	    ($changesfile) = @cs;
+	}
     }
     my $tag = debiantag($dversion);
     if (!check_for_git()) {
diff --git a/dgit.1 b/dgit.1
index e0a10ef..1f5fd84 100644
--- a/dgit.1
+++ b/dgit.1
@@ -321,7 +321,8 @@ Can be repeated as necessary.
 .BI -C changesfile
 Specifies the .changes file which is to be uploaded.  By default
 dgit push looks for single .changes file in the parent directory whose
-filename suggests it is for the right package and version.
+filename suggests it is for the right package and version - or,
+if there is a _multi.changes file, dgit uses that.
 .TP
 .BI --existing-package= package
 dgit push needs to canonicalise the suite name.  But currently