Introduce --rm-old-changes to delete previous builds' changes files.

1 files changed, 19 insertions, 0 deletions

diff --git a/dgit b/dgit
index 51df7c3..38c1497 100755
--- a/dgit
+++ b/dgit
@@ -59,6 +59,7 @@ our %previously;
 our $existing_package = 'dpkg';
 our $cleanmode;
 our $changes_since_version;
+our $rmchanges;
 our $quilt_mode;
 our $quilt_modes_re = 'linear|smash|auto|nofix|nocheck';
 our $we_are_responder;
@@ -3013,6 +3014,16 @@ sub build_prep () {
     $package = getfield $clogp, 'Source';
     $version = getfield $clogp, 'Version';
     build_maybe_quilt_fixup();
+    if ($rmchanges) {
+	my $pat = changespat $version;
+	foreach my $f (glob "$buildproductsdir/$pat") {
+	    if (act_local()) {
+		unlink $f or fail "remove old changes file $f: $!";
+	    } else {
+		progress "would remove $f";
+	    }
+	}
+    }
 }
 
 sub changesopts_initial () {
@@ -3332,6 +3343,9 @@ sub parseopts () {
 	    } elsif (m/^--no-rm-on-error$/s) {
 		push @ropts, $_;
 		$rmonerror = 0;
+	    } elsif (m/^--(no-)?rm-old-changes$/s) {
+		push @ropts, $_;
+		$rmchanges = !$1;
 	    } elsif (m/^--deliberately-($deliberately_re)$/s) {
 		push @ropts, $_;
 		push @deliberatelies, $&;
@@ -3438,6 +3452,11 @@ if (!@ARGV) {
 my $cmd = shift @ARGV;
 $cmd =~ y/-/_/;
 
+if (!defined $rmchanges) {
+    local $access_forpush;
+    $rmchanges = access_cfg_bool(0, 'rm-old-changes');
+}
+
 if (!defined $quilt_mode) {
     local $access_forpush;
     $quilt_mode = cfg('dgit.force.quilt-mode', 'RETURN-UNDEF')