our (@sbuild) = qw(sbuild);
our (@ssh) = 'ssh';
our (@dgit) = qw(dgit);
+our (@git_debrebase) = qw(git-debrebase);
our (@aptget) = qw(apt-get);
our (@aptcache) = qw(apt-cache);
our (@dpkgbuildpackage) = (qw(dpkg-buildpackage), @dpkg_source_ignores);
'ssh' => \@ssh,
'dgit' => \@dgit,
'git' => \@git,
+ 'git-debrebase' => \@git_debrebase,
'apt-get' => \@aptget,
'apt-cache' => \@aptcache,
'dpkg-source' => \@dpkgsource,
our $dgit_privdir_made //= ensure_a_playground 'dgit';
}
+sub branch_gdr_info ($$) {
+ my ($symref, $head) = @_;
+ my ($status, $msg, $current, $ffq_prev, $gdrlast) =
+ gdr_ffq_prev_branchinfo($symref);
+ return () unless $status eq 'branch';
+ $ffq_prev = git_get_ref $ffq_prev;
+ $gdrlast = git_get_ref $gdrlast;
+ $gdrlast &&= is_fast_fwd $gdrlast, $head;
+ return ($ffq_prev, $gdrlast);
+}
+
+sub branch_is_gdr ($$) {
+ my ($symref, $head) = @_;
+ my ($ffq_prev, $gdrlast) = branch_gdr_info($symref, $head);
+ return 0 unless $ffq_prev || $gdrlast;
+ return 1;
+}
+
+sub branch_is_gdr_unstitched_ff ($$$) {
+ my ($symref, $head, $ancestor) = @_;
+ my ($ffq_prev, $gdrlast) = branch_gdr_info($symref, $head);
+ return 0 unless $ffq_prev;
+ return 0 unless is_fast_fwd $ancestor, $ffq_prev;
+ return 1;
+}
+
#---------- remote protocol support, common ----------
# remote push initiator/responder protocol:
runcmd_ordryrun_local @git, qw(commit -m), $m;
}
+sub quiltify_nofix_bail ($$) {
+ my ($headinfo, $xinfo) = @_;
+ if ($quilt_mode eq 'nofix') {
+ fail "quilt fixup required but quilt mode is \`nofix'\n".
+ "HEAD commit".$headinfo." differs from tree implied by ".
+ " debian/patches".$xinfo;
+ }
+}
+
sub commit_quilty_patch () {
my $output = cmdoutput @git, qw(status --porcelain);
my %adds;
progress "nothing quilty to commit, ok.";
return;
}
+ quiltify_nofix_bail "", " (wanted to commit patch update)";
my @adds = map { s/[][*?\\]/\\$&/g; $_; } sort keys %adds;
runcmd_ordryrun_local @git, qw(add -f), @adds;
commit_admin <<END
: !length $overwrite_version ? " --overwrite"
: " --overwrite=".$overwrite_version;
+ # Contributing parent is the first parent - that makes
+ # git rev-list --first-parent DTRT.
my $pmf = dgit_privdir()."/pseudomerge";
open MC, ">", $pmf or die "$pmf $!";
print MC <<END or die $!;
my $format = getfield $dsc, 'Format';
printdebug "format $format\n";
+ my $symref = git_get_symref();
my $actualhead = git_rev_parse('HEAD');
+
+ if (branch_is_gdr_unstitched_ff($symref, $actualhead, $archive_hash)) {
+ runcmd_ordryrun_local @git_debrebase, 'stitch';
+ $actualhead = git_rev_parse('HEAD');
+ }
+
my $dgithead = $actualhead;
my $maintviewhead = undef;
last;
}
- if ($quilt_mode eq 'nofix') {
- fail "quilt fixup required but quilt mode is \`nofix'\n".
- "HEAD commit $c->{Commit} differs from tree implied by ".
- " debian/patches (tree object $oldtiptree)";
- }
+ quiltify_nofix_bail " $c->{Commit}", " (tree object $oldtiptree)";
if ($quilt_mode eq 'smash') {
printdebug " search quitting smash\n";
last;
my $clogp = parsechangelog();
my $headref = git_rev_parse('HEAD');
+ my $symref = git_get_symref();
+
+ if ($quilt_mode eq 'linear'
+ && !$fopts->{'single-debian-patch'}
+ && branch_is_gdr($symref, $headref)) {
+ # This is much faster. It also makes patches that gdr
+ # likes better for future updates without laundering.
+ #
+ # However, it can fail in some casses where we would
+ # succeed: if there are existing patches, which correspond
+ # to a prefix of the branch, but are not in gbp/gdr
+ # format, gdr will fail (exiting status 7), but we might
+ # be able to figure out where to start linearising. That
+ # will be slower so hopefully there's not much to do.
+ my @cmd = (@git_debrebase,
+ qw(--noop-ok -funclean-mixed -funclean-ordering
+ make-patches --quiet-would-amend));
+ # We tolerate soe snags that gdr wouldn't, by default.
+ if (act_local()) {
+ $!=0; $?=-1;
+ failedcmd @cmd if system @cmd and $?!=7;
+ } else {
+ dryrun_report @cmd;
+ }
+ $headref = git_rev_parse('HEAD');
+ }
prep_ud();
changedir $playground;