test suite: gdr-new-upstream: Check changelog is exactly right

[dgit.git] / git-debrebase

diff --git a/git-debrebase b/git-debrebase
index a67008f7ed4039d083eb59fe522a5756a133d5f2..4756748adaf58b9853166982d16763a452a5ad97 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -603,9 +603,10 @@ sub merge_series ($$$;@) {
        playtree_setup();
        foreach my $q ($base_q, reverse @input_qs) {
            my $s = $q->{MR}{S};
-           gbp_pq_export "p-$s", $q->{SeriesBase}, $q->{SeriesTip};
+           my $any = gbp_pq_export "p-$s", $q->{SeriesBase}, $q->{SeriesTip};
            my @earlier;
-           if (open S, $seriesfile) {
+           if ($any) {
+               open S, $seriesfile or die "$seriesfile $!";
                while (my $patch = <S>) {
                    chomp $patch or die $!;
                    $prereq{$patch} //= {};
@@ -617,8 +618,6 @@ sub merge_series ($$$;@) {
                }
                S->error and die "$seriesfile $!";
                close S;
-           } else {
-               die "$seriesfile $!" unless $!==ENOENT;
            }
            read_tree_upstream $newbase, 1;
            my $pec = make_commit [ grep { defined } $base_q->{MR}{PEC} ], [
@@ -1081,9 +1080,8 @@ sub keycommits ($;$$$$$) {
     my ($head, $furniture, $unclean, $trouble, $fatal, $claimed_bw) = @_;
     # => ($anchor, $breakwater)
 
-    # $unclean->("unclean-$tagsfx", $msg, $cl)
     # $furniture->("unclean-$tagsfx", $msg, $cl)
-    # $dgitimport->("unclean-$tagsfx", $msg, $cl))
+    # $unclean->("unclean-$tagsfx", $msg, $cl)
     #   is callled for each situation or commit that
     #   wouldn't be found in a laundered branch
     # $furniture is for furniture commits such as might be found on an
@@ -2408,12 +2406,17 @@ sub make_patches_staged ($) {
 sub make_patches ($) {
     my ($head) = @_;
     keycommits $head, 0, \&snag;
-    make_patches_staged $head;
+    my $any = make_patches_staged $head;
     my $out;
     in_workarea sub {
-       my $ptree = cmdoutput @git, qw(write-tree --prefix=debian/patches/);
+       my $ptree = !$any ? undef :
+           cmdoutput @git, qw(write-tree --prefix=debian/patches/);
        runcmd @git, qw(read-tree), $head;
-       read_tree_subdir 'debian/patches', $ptree;
+       if ($ptree) {
+           read_tree_subdir 'debian/patches', $ptree;
+       } else {
+           rm_subdir_cached 'debian/patches';
+       }
        $out = make_commit [$head], [
             'Commit patch queue (exported by git-debrebase)',
             '[git-debrebase make-patches: export and commit patches]',