return () if $type eq 'missing';
}
+ $recurse = !!$recurse;
+
confess "get_tree needs object not $x ?" unless $x =~ m{^[0-9a-f]+\:};
our (@get_tree_memo, %get_tree_memo);
- my $memo = $get_tree_memo{$x};
+ my $memo = $get_tree_memo{$recurse,$x};
return @$memo if $memo;
local $Debian::Dgit::debugcmd_when_debuglevel = 3;
push @l, [ $n, $i ];
confess "$x need $last < $n ?" unless $last lt $n;
}
- $get_tree_memo{$x} = \@l;
+ $get_tree_memo{$recurse,$x} = \@l;
push @get_tree_memo, $x;
if (@get_tree_memo > 10) {
delete $get_tree_memo{ shift @get_tree_memo };
}
sub trees_diff_walk ($$$;$) {
- # trees_diff_walk [$all,] $x, $y, sub {... }
- # calls sub->($name, $ix, $iy) for each difference (with $all, each name)
+ # trees_diff_walk [{..opts...},] $x, $y, sub {... }
+ # calls sub->($name, $ix, $iy) for each difference
# $x and $y are as for get_tree
# where $name, $ix, $iy are $name and $info from get_tree
- my $all = shift @_ if @_>=4;
+ # opts are all call even for names same in both
+ # recurse call even for names same in both
+ my $opts = shift @_ if @_>=4;
my ($x,$y,$call) = @_;
+ my $all = $opts->{all};
return if !$all and $x eq $y;
- my @x = get_tree $x;
- my @y = get_tree $y;
+ my @x = get_tree $x, 0, $opts->{recurse};
+ my @y = get_tree $y, 0, $opts->{recurse};
printdebug "trees_diff_walk(..$x,$y..) ".Dumper(\@x,\@y)
if $debuglevel >= 3;
while (@x || @y) {
my $xp = $ix && "$xd/patches";
my $yp = $iy && "$yd/patches";
- trees_diff_walk $xp, $yp, sub {
+ trees_diff_walk { recurse=>1 }, $xp, $yp, sub {
my ($n,$ix,$iy) = @_;
# analyse difference in debian/patches
my $ok;
- if ($n !~ m/\.series$/s && !$ix && $plain->($iy)) {
+ if ($n =~ m{/$}s) {
+ # we are recursing; directories may appear and disappear
+ $ok = 1;
+ } elsif ($n !~ m/\.series$/s && !$ix && $plain->($iy)) {
$ok = 1;
} elsif ($n eq 'series' && $plain->($ix) && $plain->($iy)) {
my $x_s = (git_cat_file "$xp/series", 'blob');
return $snags_forced || $snags_tripped;
}
-sub record_gdrlast ($$) {
- my ($gdrlast, $newvalue) = @_;
- push @deferred_updates, "update $gdrlast $newvalue $git_null_obj";
+sub ffq_prev_branchinfo () {
+ my $current = git_get_symref();
+ return gdr_ffq_prev_branchinfo($current);
}
+sub record_gdrlast ($$;$) {
+ my ($gdrlast, $newvalue, $oldvalue) = @_;
+ $oldvalue ||= $git_null_obj;
+ push @deferred_updates, "update $gdrlast $newvalue $oldvalue";
+}
+
+sub fail_unprocessable ($) {
+ my ($msg) = @_;
+ changedir $maindir;
+ my ($ffqs, $ffqm, $symref, $ffq_prev, $gdrlast) = ffq_prev_branchinfo();
+
+ my $mangled = <<END;
+Branch/history seems mangled - no longer in gdr format.
+See ILLEGAL OPERATIONS in git-debrebase(5).
+END
+ chomp $mangled;
+
+ if (defined $ffqm) {
+ fail <<END;
+$msg
+Is this meant to be a gdr branch? $ffqm
+END
+ } elsif (git_get_ref $ffq_prev) {
+ fail <<END;
+$msg
+$mangled
+Consider git-debrebase scrap, to throw away your recent work.
+END
+ } elsif (!git_get_ref $gdrlast) {
+ fail <<END;
+$msg
+Branch does not seem to be meant to be a git-debrebase branch?
+Wrong branch, or maybe you needed git-debrebase convert-from-*.
+END
+ } elsif (is_fast_fwd $gdrlast, git_rev_parse 'HEAD') {
+ fail <<END;
+$msg
+$mangled
+END
+ } else {
+ fail <<END;
+$msg
+Branch/history mangled, and diverged since last git-debrebase.
+Maybe you reset to, or rebased from, somewhere inappropriate.
+END
+ }
+};
+
sub gbp_pq_export ($$$) {
my ($bname, $base, $tip) = @_;
# must be run in a workarea. $bname and patch-queue/$bname
my $clogonly;
my $cl;
my $found_pm;
- $fatal //= sub { fail $_[1]; };
+ $fatal //= sub { fail_unprocessable $_[1]; };
my $x = sub {
my ($cb, $tagsfx, $mainwhy, $xwhy) = @_;
my $why = $mainwhy.$xwhy;
if ($nogenerate) {
return (undef,undef);
}
- fail "found unprocessable commit, cannot cope".
+ fail_unprocessable "found unprocessable commit, cannot cope".
(defined $cl->{Why} ? "; $cl->{Why}:": ':').
" (commit $cur) (d.".
(join ' ', map { sprintf "%#x", $_->{Differs} }
STDOUT->error and die $!;
}
-sub ffq_prev_branchinfo () {
- my $current = git_get_symref();
- return gdr_ffq_prev_branchinfo($current);
-}
-
sub ffq_check ($;$$) {
# calls $ff and/or $notff zero or more times
# then returns either (status,message) where status is
[qw(blob missing)];
$series //= '';
my %series;
+ our $comments_snagged;
foreach my $f (grep /\S/, grep {!m/^\s\#/} split /\n/, $series) {
+ if ($f =~ m/^\s*\#/) {
+ snag 'series-comments',
+ "$seriesfn contains comments, which will be discarded"
+ unless $comments_snagged++;
+ next;
+ }
fail "patch $f repeated in $seriesfn !" if $series{$f}++;
}
foreach my $patchfile (get_tree "$head:debian/patches", 1,1) {
sub begin_convert_from () {
my $head = get_head();
- return ($head, undef);
+ my ($ffqs, $ffqm, $symref, $ffq_prev, $gdrlast) = ffq_prev_branchinfo();
+
+ fail "ffq-prev exists, this is already managed by git-debrebase!"
+ if $ffq_prev && git_get_ref $ffq_prev;
+
+ my $gdrlast_obj = $gdrlast && git_get_ref $gdrlast;
+ snag 'already-converted',
+ "ahead of debrebase-last, this is already managed by git-debrebase!"
+ if $gdrlast_obj && is_fast_fwd $gdrlast_obj, $head;
+ return ($head, { LastRef => $gdrlast, LastObj => $gdrlast_obj });
}
sub complete_convert_from ($$$$) {
my ($old_head, $new_head, $gi, $mrest) = @_;
ffq_check $new_head;
+ record_gdrlast $gi->{LastRef}, $new_head, $gi->{LastObj}
+ if $gi->{LastRef};
snags_maybe_bail();
update_head_checkout $old_head, $new_head, $mrest;
}