X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit;h=0c8183dc2d614abe2cd27f91188d205752ad1bcd;hp=21cbd56f67d26cc1cd8ab11052461f4c37d6ef5c;hb=71350fe30f7449b24dc2884b42cc5ff50a2bf84e;hpb=348b995ead9fbcab890da5d222af36402f33d68c

diff --git a/dgit b/dgit
index 21cbd56f..0c8183dc 100755
--- a/dgit
+++ b/dgit
@@ -57,8 +57,9 @@ our $rmonerror = 1;
 our @deliberatelies;
 our %previously;
 our $existing_package = 'dpkg';
-our $cleanmode = 'dpkg-source';
+our $cleanmode;
 our $changes_since_version;
+our $rmchanges;
 our $quilt_mode;
 our $quilt_modes_re = 'linear|smash|auto|nofix|nocheck';
 our $we_are_responder;
@@ -67,6 +68,7 @@ our $initiator_tempdir;
 our %format_ok = map { $_=>1 } ("1.0","3.0 (native)","3.0 (quilt)");
 
 our $suite_re = '[-+.0-9a-z]+';
+our $cleanmode_re = 'dpkg-source(?:-d)?|git|git-ff|check|none';
 
 our (@git) = qw(git);
 our (@dget) = qw(dget);
@@ -74,7 +76,7 @@ our (@curl) = qw(curl -f);
 our (@dput) = qw(dput);
 our (@debsign) = qw(debsign);
 our (@gpg) = qw(gpg);
-our (@sbuild) = qw(sbuild -A);
+our (@sbuild) = qw(sbuild);
 our (@ssh) = 'ssh';
 our (@dgit) = qw(dgit);
 our (@dpkgbuildpackage) = qw(dpkg-buildpackage -i\.git/ -I.git);
@@ -111,6 +113,7 @@ our $keyid;
 autoflush STDOUT 1;
 
 our $supplementary_message = '';
+our $need_split_build_invocation = 0;
 
 END {
     local ($@, $?);
@@ -146,6 +149,11 @@ sub dscfn ($) {
     return srcfn($vsn,".dsc");
 }
 
+sub changespat ($;$) {
+    my ($vsn, $arch) = @_;
+    return "${package}_".(stripepoch $vsn)."_".($arch//'*').".changes";
+}
+
 our $us = 'dgit';
 initdebug('');
 
@@ -154,7 +162,7 @@ END {
     local ($?);
     foreach my $f (@end) {
 	eval { $f->(); };
-	warn "$us: cleanup: $@" if length $@;
+	print STDERR "$us: cleanup: $@" if length $@;
     }
 };
 
@@ -1201,10 +1209,12 @@ our ($dsc_hash,$lastpush_hash);
 
 our $ud = '.git/dgit/unpack';
 
-sub prep_ud () {
-    rmtree($ud);
+sub prep_ud (;$) {
+    my ($d) = @_;
+    $d //= $ud;
+    rmtree($d);
     mkpath '.git/dgit';
-    mkdir $ud or die $!;
+    mkdir $d or die $!;
 }
 
 sub mktree_in_ud_here () {
@@ -1245,7 +1255,7 @@ sub mktree_in_ud_from_only_subdir () {
 
     remove_stray_gits();
     mktree_in_ud_here();
-    my $format=get_source_format();
+    my ($format, $fopts) = get_source_format();
     if (madformat($format)) {
 	rmtree '.pc';
     }
@@ -1381,11 +1391,12 @@ sub generate_commit_from_dsc () {
 	my $f = $fi->{Filename};
 	die "$f ?" if $f =~ m#/|^\.|\.dsc$|\.tmp$#;
 
-	link "../../../$f", $f
+	link_ltarget "../../../$f", $f
 	    or $!==&ENOENT
 	    or die "$f $!";
 
-	complete_file_from_dsc('.', $fi);
+	complete_file_from_dsc('.', $fi)
+	    or next;
 
 	if (is_orig_file($f)) {
 	    link $f, "../../../../$f"
@@ -1480,10 +1491,10 @@ sub complete_file_from_dsc ($$) {
 	my $furl = $dscurl;
 	$furl =~ s{/[^/]+$}{};
 	$furl .= "/$f";
-	die "$f ?" unless $f =~ m/^${package}_/;
+	die "$f ?" unless $f =~ m/^\Q${package}\E_/;
 	die "$f ?" if $f =~ m#/#;
 	runcmd_ordryrun_local @curl,qw(-o),$tf,'--',"$furl";
-	next if !act_local();
+	return 0 if !act_local();
 	$downloaded = 1;
     }
 
@@ -1497,13 +1508,16 @@ sub complete_file_from_dsc ($$) {
 	    " demands hash $fi->{Hash} ".
 	    ($downloaded ? "(got wrong file from archive!)"
 	     : "(perhaps you should delete this file?)");
+
+    return 1;
 }
 
 sub ensure_we_have_orig () {
     foreach my $fi (dsc_files_info()) {
 	my $f = $fi->{Filename};
 	next unless is_orig_file($f);
-	complete_file_from_dsc('..', $fi);
+	complete_file_from_dsc('..', $fi)
+	    or next;
     }
 }
 
@@ -1701,7 +1715,7 @@ sub clone ($) {
     canonicalise_suite();
     badusage "dry run makes no sense with clone" unless act_local();
     my $hasgit = check_for_git();
-    mkdir $dstdir or die "$dstdir $!";
+    mkdir $dstdir or fail "create \`$dstdir': $!";
     changedir $dstdir;
     runcmd @git, qw(init -q);
     my $giturl = access_giturl(1);
@@ -1746,7 +1760,14 @@ sub pull () {
 }
 
 sub check_not_dirty () {
+    foreach my $f (qw(local-options local-patch-header)) {
+	if (stat_exists "debian/source/$f") {
+	    fail "git tree contains debian/source/$f";
+	}
+    }
+
     return if $ignoredirty;
+
     my @cmd = (@git, qw(diff --quiet HEAD));
     debugcmd "+",@cmd;
     $!=0; $?=0; system @cmd;
@@ -1778,11 +1799,32 @@ sub commit_quilty_patch () {
 	progress "nothing quilty to commit, ok.";
 	return;
     }
-    runcmd_ordryrun_local @git, qw(add), sort keys %adds;
+    my @adds = map { s/[][*?\\]/\\$&/g; $_; } sort keys %adds;
+    runcmd_ordryrun_local @git, qw(add -f), @adds;
     commit_admin "Commit Debian 3.0 (quilt) metadata";
 }
 
 sub get_source_format () {
+    my %options;
+    if (open F, "debian/source/options") {
+	while (<F>) {
+	    next if m/^\s*\#/;
+	    next unless m/\S/;
+	    s/\s+$//; # ignore missing final newline
+	    if (m/\s*\#\s*/) {
+		my ($k, $v) = ($`, $'); #');
+		$v =~ s/^"(.*)"$/$1/;
+		$options{$k} = $v;
+	    } else {
+		$options{$_} = 1;
+	    }
+	}
+	F->error and die $!;
+	close F;
+    } else {
+	die $! unless $!==&ENOENT;
+    }
+
     if (!open F, "debian/source/format") {
 	die $! unless $!==&ENOENT;
 	return '';
@@ -1790,7 +1832,7 @@ sub get_source_format () {
     $_ = <F>;
     F->error and die $!;
     chomp;
-    return $_;
+    return ($_, \%options);
 }
 
 sub madformat ($) {
@@ -1937,6 +1979,7 @@ END
     my $format = getfield $dsc, 'Format';
     printdebug "format $format\n";
     if (madformat($format)) {
+	# user might have not used dgit build, so maybe do this now:
 	commit_quilty_patch();
     }
     check_not_dirty();
@@ -1964,19 +2007,13 @@ END
     }
     my $head = git_rev_parse('HEAD');
     if (!$changesfile) {
-	my $multi = "$buildproductsdir/".
-	    "${package}_".(stripepoch $cversion)."_multi.changes";
-	if (stat_exists "$multi") {
-	    $changesfile = $multi;
-	} else {
-	    my $pat = "${package}_".(stripepoch $cversion)."_*.changes";
-	    my @cs = glob "$buildproductsdir/$pat";
-	    fail "failed to find unique changes file".
-		" (looked for $pat in $buildproductsdir, or $multi);".
-		" perhaps you need to use dgit -C"
-		unless @cs==1;
-	    ($changesfile) = @cs;
-	}
+	my $pat = changespat $cversion;
+	my @cs = glob "$buildproductsdir/$pat";
+	fail "failed to find unique changes file".
+	    " (looked for $pat in $buildproductsdir);".
+	    " perhaps you need to use dgit -C"
+	    unless @cs==1;
+	($changesfile) = @cs;
     } else {
 	$changesfile = "$buildproductsdir/$changesfile";
     }
@@ -2050,7 +2087,7 @@ END
 	sign_changes $changesfile;
     }
 
-    supplementary_message(<<'END');
+    supplementary_message(<<END);
 Push failed, while uploading package(s) to the archive server.
 You can retry the upload of exactly these same files with dput of:
   $changesfile
@@ -2098,7 +2135,13 @@ sub cmd_clone {
 		return if $!==&ENOENT;
 		die "chdir $cwd_remove: $!";
 	    }
-	    rmtree($dstdir) or die "remove $dstdir: $!\n";
+	    if (stat $dstdir) {
+		rmtree($dstdir) or die "remove $dstdir: $!\n";
+	    } elsif (!grep { $! == $_ }
+		     (ENOENT, ENOTDIR, EACCES, EPERM, ELOOP)) {
+	    } else {
+		print STDERR "check whether to remove $dstdir: $!\n";
+	    }
 	};
     }
 
@@ -2463,21 +2506,27 @@ END
 	local $ENV{'EDITOR'} = cmdoutput qw(realpath --), $0;
 	local $ENV{'VISUAL'} = $ENV{'EDITOR'};
 	local $ENV{$fakeeditorenv} = cmdoutput qw(realpath --), $descfn;
-	runcmd_ordryrun_local @dpkgsource, qw(--commit .), $patchname;
+	runcmd @dpkgsource, qw(--commit .), $patchname;
     }
 }
 
-sub quiltify_trees_differ ($$) {
-    my ($x,$y) = @_;
-    # returns 1 iff the two tree objects differ other than in debian/
+sub quiltify_trees_differ ($$;$) {
+    my ($x,$y,$finegrained) = @_;
+    # returns true iff the two tree objects differ other than in debian/
+    # returns bitmas 01 - differ in upstream files except .gitignore
+    #                02 - differ in .gitignore
     local $/=undef;
-    my @cmd = (@git, qw(diff-tree --name-only -z), $x, $y);
+    my @cmd = (@git, qw(diff-tree --name-only -z));
+    push @cmd, qw(-r) if $finegrained;
+    push @cmd, $x, $y;
     my $diffs= cmdoutput @cmd;
+    my $r = 0;
     foreach my $f (split /\0/, $diffs) {
-	next if $f eq 'debian';
-	return 1;
+	next if $f =~ m#^debian(?:/.*)?$#s;
+	$r |= ($f =~ m#^(?:.*/)?.gitignore$#s) ? 02 : 01;
     }
-    return 0;
+    printdebug "quiltify_trees_differ $x $y => $r\n";
+    return $r;
 }
 
 sub quiltify_tree_sentinelfiles ($) {
@@ -2489,8 +2538,15 @@ sub quiltify_tree_sentinelfiles ($) {
     return $r;
 }
 
-sub quiltify ($$) {
-    my ($clogp,$target) = @_;
+sub quilt_could_gbp ($$$) {
+    my ($userhead,$unapplied,$applied) = @_;
+    return
+	!(quiltify_trees_differ($userhead,$unapplied,1) & 01) &&
+	(quiltify_trees_differ($userhead,$applied,1) & 01);
+}
+
+sub quiltify ($$$$) {
+    my ($clogp,$target,$unapplied,$oldtiptree) = @_;
 
     # Quilt patchification algorithm
     #
@@ -2516,14 +2572,6 @@ sub quiltify ($$) {
     # After traversing PT, we git commit the changes which
     # should be contained within debian/patches.
 
-    changedir '../fake';
-    remove_stray_gits();
-    mktree_in_ud_here();
-    rmtree '.pc';
-    runcmd @git, 'add', '.';
-    my $oldtiptree=git_write_tree();
-    changedir '../work';
-
     # The search for the path S..T is breadth-first.  We maintain a
     # todo list containing search nodes.  A search node identifies a
     # commit, and looks something like this:
@@ -2621,7 +2669,7 @@ sub quiltify ($$) {
 	my $abbrev = sub {
 	    my $x = $_[0]{Commit};
 	    $x =~ s/(.*?[0-9a-z]{8})[0-9a-z]*$/$1/;
-	    return $;
+	    return $x;
 	};
 	my $reportnot = sub {
 	    my ($notp) = @_;
@@ -2636,6 +2684,12 @@ sub quiltify ($$) {
 	    foreach my $notp (@nots) {
 		print STDERR "$us:  ", $reportnot->($notp), "\n";
 	    }
+	    if (quilt_could_gbp($target,$unapplied,$oldtiptree)) {
+		print STDERR <<END;
+$us: Tree looks like a patches-unapplied git branch.
+$us: Maybe you forgot --quilt=gbp (or --quilt=apply) ?
+END
+	    }
 	    fail "quilt fixup naive history linearisation failed.\n".
  "Use dpkg-source --commit by hand; or, --quilt=smash for one ugly patch";
 	} elsif ($quilt_mode eq 'smash') {
@@ -2708,12 +2762,95 @@ sub quiltify ($$) {
 }
 
 sub build_maybe_quilt_fixup () {
-    my $format=get_source_format;
+    my ($format,$fopts) = get_source_format;
     return unless madformat $format;
     # sigh
 
     check_for_vendor_patches();
 
+    my $clogp = parsechangelog();
+    my $headref = git_rev_parse('HEAD');
+
+    prep_ud();
+    changedir $ud;
+
+    my $upstreamversion=$version;
+    $upstreamversion =~ s/-[^-]*$//;
+
+    if ($fopts->{'single-debian-patch'}) {
+	quilt_fixup_singlepatch($clogp, $headref, $upstreamversion);
+    } else {
+	quilt_fixup_multipatch($clogp, $headref, $upstreamversion);
+    }
+
+    changedir '../../../..';
+    runcmd_ordryrun_local
+        @git, qw(pull --ff-only -q .git/dgit/unpack/work master);
+}
+
+sub quilt_fixup_mkwork ($) {
+    my ($headref) = @_;
+
+    mkdir "work" or die $!;
+    changedir "work";
+    mktree_in_ud_here();
+    runcmd @git, qw(reset -q --hard), $headref;
+}
+
+sub quilt_fixup_linkorigs ($$) {
+    my ($upstreamversion, $fn) = @_;
+    # calls $fn->($leafname);
+
+    foreach my $f (<../../../../*>) { #/){
+	my $b=$f; $b =~ s{.*/}{};
+	{
+	    local ($debuglevel) = $debuglevel-1;
+	    printdebug "QF linkorigs $b, $f ?\n";
+	}
+	next unless is_orig_file $b, srcfn $upstreamversion,'';
+	printdebug "QF linkorigs $b, $f Y\n";
+	link_ltarget $f, $b or die "$b $!";
+        $fn->($b);
+    }
+}
+
+sub quilt_fixup_delete_pc () {
+    runcmd @git, qw(rm -rqf .pc);
+    commit_admin "Commit removal of .pc (quilt series tracking data)";
+}
+
+sub quilt_fixup_singlepatch ($$$) {
+    my ($clogp, $headref, $upstreamversion) = @_;
+
+    progress "starting quiltify (single-debian-patch)";
+
+    # dpkg-source --commit generates new patches even if
+    # single-debian-patch is in debian/source/options.  In order to
+    # get it to generate debian/patches/debian-changes, it is
+    # necessary to build the source package.
+
+    quilt_fixup_linkorigs($upstreamversion, sub { });
+    quilt_fixup_mkwork($headref);
+
+    rmtree("debian/patches");
+
+    runcmd @dpkgsource, qw(-b .);
+    chdir "..";
+    runcmd @dpkgsource, qw(-x), (srcfn $version, ".dsc");
+    rename srcfn("$upstreamversion", "/debian/patches"), 
+           "work/debian/patches";
+
+    chdir "work";
+    commit_quilty_patch();
+
+    
+}
+
+sub quilt_fixup_multipatch ($$$) {
+    my ($clogp, $headref, $upstreamversion) = @_;
+
+    progress "starting quiltify (multiple patches, $quilt_mode mode)";
+
     # Our objective is:
     #  - honour any existing .pc in case it has any strangeness
     #  - determine the git commit corresponding to the tip of
@@ -2737,7 +2874,7 @@ sub build_maybe_quilt_fixup () {
     # can work.  We do this as follows:
     #     1. Collect all relevant .orig from parent directory
     #     2. Generate a debian.tar.gz out of
-    #         debian/{patches,rules,source/format}
+    #         debian/{patches,rules,source/format,source/options}
     #     3. Generate a fake .dsc containing just these fields:
     #          Format Source Version Files
     #     4. Extract the fake .dsc
@@ -2758,14 +2895,30 @@ sub build_maybe_quilt_fixup () {
     #     5. If we had a .pc in-tree, delete it, and git-commit
     #     6. Back in the main tree, fast forward to the new HEAD
 
-    my $clogp = parsechangelog();
-    my $headref = git_rev_parse('HEAD');
-
-    prep_ud();
-    changedir $ud;
-
-    my $upstreamversion=$version;
-    $upstreamversion =~ s/-[^-]*$//;
+    # Another situation we may have to cope with is gbp-style
+    # patches-unapplied trees.
+    #
+    # We would want to detect these, so we know to escape into
+    # quilt_fixup_gbp.  However, this is in general not possible.
+    # Consider a package with a one patch which the dgit user reverts
+    # (with git-revert or the moral equivalent).
+    #
+    # That is indistinguishable in contents from a patches-unapplied
+    # tree.  And looking at the history to distinguish them is not
+    # useful because the user might have made a confusing-looking git
+    # history structure (which ought to produce an error if dgit can't
+    # cope, not a silent reintroduction of an unwanted patch).
+    #
+    # So gbp users will have to pass an option.  But we can usually
+    # detect their failure to do so: if the tree is not a clean
+    # patches-applied tree, quilt linearisation fails, but the tree
+    # _is_ a clean patches-unapplied tree, we can suggest that maybe
+    # they want --quilt=unapplied.
+    #
+    # To help detect this, when we are extracting the fake dsc, we
+    # first extract it with --skip-patches, and then apply the patches
+    # afterwards with dpkg-source --before-build.  That lets us save a
+    # tree object corresponding to .origs.
 
     my $fakeversion="$upstreamversion-~~DGITFAKE";
 
@@ -2790,16 +2943,14 @@ END
 	print $fakedsc " ".$md->hexdigest." $size $b\n" or die $!;
     };
 
-    foreach my $f (<../../../../*>) { #/){
-	my $b=$f; $b =~ s{.*/}{};
-	next unless is_orig_file $b, srcfn $upstreamversion,'';
-	link $f, $b or die "$b $!";
-        $dscaddfile->($b);
-    }
+    quilt_fixup_linkorigs($upstreamversion, $dscaddfile);
 
-    my @files=qw(debian/source/format debian/rules);
-    if (stat_exists '../../../debian/patches') {
-        push @files, 'debian/patches';
+    my @files=qw(debian/source/format debian/rules
+                 debian/control debian/changelog);
+    foreach my $maybe (qw(debian/patches debian/source/options
+                          debian/tests/control)) {
+        next unless stat_exists "../../../$maybe";
+        push @files, $maybe;
     }
 
     my $debtar= srcfn $fakeversion,'.debian.tar.gz';
@@ -2808,15 +2959,31 @@ END
     $dscaddfile->($debtar);
     close $fakedsc or die $!;
 
-    runcmd qw(sh -ec), 'exec dpkg-source --no-check -x fake.dsc >/dev/null';
+    runcmd qw(sh -ec),
+        'exec dpkg-source --no-check --skip-patches -x fake.dsc >/dev/null';
 
     my $fakexdir= $package.'-'.(stripepoch $upstreamversion);
     rename $fakexdir, "fake" or die "$fakexdir $!";
 
-    mkdir "work" or die $!;
-    changedir "work";
+    changedir 'fake';
+
+    remove_stray_gits();
     mktree_in_ud_here();
-    runcmd @git, qw(reset --hard), $headref;
+
+    rmtree '.pc';
+
+    runcmd @git, qw(add -Af .);
+    my $unapplied=git_write_tree();
+    printdebug "fake orig tree object $unapplied\n";
+
+    ensuredir '.pc';
+
+    runcmd qw(sh -ec),
+        'exec dpkg-source --before-build . >/dev/null';
+
+    changedir '..';
+
+    quilt_fixup_mkwork($headref);
 
     my $mustdeletepc=0;
     if (stat_exists ".pc") {
@@ -2827,7 +2994,13 @@ END
         rename '../fake/.pc','.pc' or die $!;
     }
 
-    quiltify($clogp,$headref);
+    changedir '../fake';
+    rmtree '.pc';
+    runcmd @git, qw(add -Af .);
+    my $oldtiptree=git_write_tree();
+    changedir '../work';
+
+    quiltify($clogp,$headref,$unapplied,$oldtiptree);
 
     if (!open P, '>>', ".pc/applied-patches") {
 	$!==&ENOENT or die $!;
@@ -2838,12 +3011,8 @@ END
     commit_quilty_patch();
 
     if ($mustdeletepc) {
-        runcmd @git, qw(rm -rqf .pc);
-        commit_admin "Commit removal of .pc (quilt series tracking data)";
+        quilt_fixup_delete_pc();
     }
-
-    changedir '../../../..';
-    runcmd @git, qw(pull --ff-only -q .git/dgit/unpack/work master);
 }
 
 sub quilt_fixup_editor () {
@@ -2907,6 +3076,16 @@ 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 () {
@@ -2946,48 +3125,98 @@ sub changesopts () {
 
 sub massage_dbp_args ($;$) {
     my ($cmd,$xargs) = @_;
-    if ($cleanmode eq 'dpkg-source') {
+    # We need to:
+    #
+    #  - if we're going to split the source build out so we can
+    #    do strange things to it, massage the arguments to dpkg-buildpackage
+    #    so that the main build doessn't build source (or add an argument
+    #    to stop it building source by default).
+    #
+    #  - add -nc to stop dpkg-source cleaning the source tree,
+    #    unless we're not doing a split build and want dpkg-source
+    #    as cleanmode, in which case we can do nothing
+    #
+    # return values:
+    #    0 - source will NOT need to be built separately by caller
+    #   +1 - source will need to be built separately by caller
+    #   +2 - source will need to be built separately by caller AND
+    #        dpkg-buildpackage should not in fact be run at all!
+    debugcmd '#massaging#', @$cmd if $debuglevel>1;
+#print STDERR "MASS0 ",Dumper($cmd, $xargs, $need_split_build_invocation);
+    if ($cleanmode eq 'dpkg-source' && !$need_split_build_invocation) {
 	$suppress_clean = 1;
-	return;
+	return 0;
     }
-    debugcmd '#massaging#', @$cmd if $debuglevel>1;
-    my @newcmd = shift @$cmd;
     # -nc has the side effect of specifying -b if nothing else specified
-    push @newcmd, '-nc';
     # and some combinations of -S, -b, et al, are errors, rather than
-    # later simply overriding earlier
-    push @newcmd, '-F' unless grep { m/^-[bBASF]$/ } (@$cmd, @$xargs);
-    push @newcmd, @$cmd;
-    @$cmd = @newcmd;
+    # later simply overriding earlie.  So we need to:
+    #  - search the command line for these options
+    #  - pick the last one
+    #  - perhaps add our own as a default
+    #  - perhaps adjust it to the corresponding non-source-building version
+    my $dmode = '-F';
+    foreach my $l ($cmd, $xargs) {
+	next unless $l;
+	@$l = grep { !(m/^-[SgGFABb]$/s and $dmode=$_) } @$l;
+    }
+    push @$cmd, '-nc';
+#print STDERR "MASS1 ",Dumper($cmd, $xargs, $dmode);
+    my $r = 0;
+    if ($need_split_build_invocation) {
+	$r = $dmode =~ m/[S]/     ? +2 :
+	     $dmode =~ y/gGF/ABb/ ? +1 :
+	     $dmode =~ m/[ABb]/   ?  0 :
+	     die "$dmode ?";
+    }
+    push @$cmd, $dmode;
+#print STDERR "MASS2 ",Dumper($cmd, $xargs, $r);
+    return $r;
 }
 
 sub cmd_build {
     my @dbp = (@dpkgbuildpackage, qw(-us -uc), changesopts_initial(), @ARGV);
-    massage_dbp_args \@dbp;
-    build_prep();
-    push @dbp, changesopts_version();
-    runcmd_ordryrun_local @dbp;
+    my $wantsrc = massage_dbp_args \@dbp;
+    if ($wantsrc > 0) {
+	build_source();
+    } else {
+	build_prep();
+    }
+    if ($wantsrc < 2) {
+	push @dbp, changesopts_version();
+	runcmd_ordryrun_local @dbp;
+    }
     printdone "build successful\n";
 }
 
 sub cmd_gbp_build {
     my @dbp = @dpkgbuildpackage;
-    massage_dbp_args \@dbp, \@ARGV;
-    my @cmd =
-	(qw(git-buildpackage -us -uc --git-no-sign-tags),
-	 "--git-builder=@dbp");
-    if ($cleanmode eq 'dpkg-source') {
-	$suppress_clean = 1;
+
+    my $wantsrc = massage_dbp_args \@dbp, \@ARGV;
+
+    my @cmd;
+    if (length executable_on_path('git-buildpackage')) {
+	@cmd = qw(git-buildpackage);
     } else {
-	push @cmd, '--git-cleaner=true';
+	@cmd = qw(gbp buildpackage);
     }
-    build_prep();
-    unless (grep { m/^--git-debian-branch|^--git-ignore-branch/ } @ARGV) {
-	canonicalise_suite();
-	push @cmd, "--git-debian-branch=".lbranch();
+    push @cmd, (qw(-us -uc --git-no-sign-tags), "--git-builder=@dbp");
+
+    if ($wantsrc > 0) {
+	build_source();
+    } else {
+	if (!$suppress_clean) {
+	    push @cmd, '--git-cleaner=true';
+	}
+	build_prep();
+    }
+    if ($wantsrc < 2) {
+	unless (grep { m/^--git-debian-branch|^--git-ignore-branch/ } @ARGV) {
+	    canonicalise_suite();
+	    push @cmd, "--git-debian-branch=".lbranch();
+	}
+	push @cmd, changesopts();
+	runcmd_ordryrun_local @cmd, @ARGV;
     }
-    push @cmd, changesopts();
-    runcmd_ordryrun_local @cmd, @ARGV;
     printdone "build successful\n";
 }
 sub cmd_git_build { cmd_gbp_build(); } # compatibility with <= 1.0
@@ -2998,14 +3227,18 @@ sub build_source {
 	$suppress_clean = 1;
     }
     build_prep();
-    $sourcechanges = "${package}_".(stripepoch $version)."_source.changes";
+    $sourcechanges = changespat $version,'source';
+    if (act_local()) {
+	unlink "../$sourcechanges" or $!==ENOENT
+	    or fail "remove $sourcechanges: $!";
+    }
     $dscfn = dscfn($version);
     if ($cleanmode eq 'dpkg-source') {
-	runcmd_ordryrun_local (@dpkgbuildpackage, qw(-us -uc -S)),
-	    changesopts();
+	runcmd_ordryrun_local @dpkgbuildpackage, qw(-us -uc -S),
+			       changesopts();
     } elsif ($cleanmode eq 'dpkg-source-d') {
-	runcmd_ordryrun_local (@dpkgbuildpackage, qw(-us -uc -S -d)),
-	    changesopts();
+	runcmd_ordryrun_local @dpkgbuildpackage, qw(-us -uc -S -d),
+			       changesopts();
     } else {
 	my $pwd = must_getcwd();
 	my $leafdir = basename $pwd;
@@ -3027,29 +3260,42 @@ sub cmd_build_source {
 
 sub cmd_sbuild {
     build_source();
+    my $pat = changespat $version;
+    if (!$rmchanges) {
+	my @unwanted = map { s#^\.\./##; $_; } glob "../$pat";
+	@unwanted = grep { $_ ne changespat $version,'source' } @unwanted;
+	fail "changes files other than source matching $pat".
+	    " already present (@unwanted);".
+	    " building would result in ambiguity about the intended results"
+	    if @unwanted;
+    }
     changedir "..";
-    my $pat = "${package}_".(stripepoch $version)."_*.changes";
     if (act_local()) {
 	stat_exists $dscfn or fail "$dscfn (in parent directory): $!";
 	stat_exists $sourcechanges
 	    or fail "$sourcechanges (in parent directory): $!";
-	foreach my $cf (glob $pat) {
-	    next if $cf eq $sourcechanges;
-	    unlink $cf or fail "remove $cf: $!";
-	}
     }
-    runcmd_ordryrun_local @sbuild, @ARGV, qw(-d), $isuite, $dscfn;
+    runcmd_ordryrun_local @sbuild, qw(-d), $isuite, @ARGV, $dscfn;
     my @changesfiles = glob $pat;
     @changesfiles = sort {
 	($b =~ m/_source\.changes$/ <=> $a =~ m/_source\.changes$/)
 	    or $a cmp $b
     } @changesfiles;
     fail "wrong number of different changes files (@changesfiles)"
-	unless @changesfiles;
+	unless @changesfiles==2;
+    my $binchanges = parsecontrol($changesfiles[1], "binary changes file");
+    foreach my $l (split /\n/, getfield $binchanges, 'Files') {
+	fail "$l found in binaries changes file $binchanges"
+	    if $l =~ m/\.dsc$/;
+    }
     runcmd_ordryrun_local @mergechanges, @changesfiles;
-    my $multichanges = "${package}_".(stripepoch $version)."_multi.changes";
+    my $multichanges = changespat $version,'multi';
     if (act_local()) {
 	stat_exists $multichanges or fail "$multichanges: $!";
+	foreach my $cf (glob $pat) {
+	    next if $cf eq $multichanges;
+	    rename "$cf", "$cf.inmulti" or fail "$cf\{,.inmulti}: $!";
+	}
     }
     printdone "build successful, results in $multichanges\n" or die $!;
 }    
@@ -3059,6 +3305,8 @@ sub cmd_quilt_fixup {
     my $clogp = parsechangelog();
     $version = getfield $clogp, 'Version';
     $package = getfield $clogp, 'Source';
+    check_not_dirty();
+    clean_tree();
     build_maybe_quilt_fixup();
 }
 
@@ -3101,6 +3349,44 @@ sub cmd_version {
     exit 0;
 }
 
+our (%valopts_long, %valopts_short);
+our @rvalopts;
+
+sub defvalopt ($$$$) {
+    my ($long,$short,$val_re,$how) = @_;
+    my $oi = { Long => $long, Short => $short, Re => $val_re, How => $how };
+    $valopts_long{$long} = $oi;
+    $valopts_short{$short} = $oi;
+    # $how subref should:
+    #   do whatever assignemnt or thing it likes with $_[0]
+    #   if the option should not be passed on to remote, @rvalopts=()
+    # or $how can be a scalar ref, meaning simply assign the value
+}
+
+defvalopt '--since-version', '-v', '[^_]+|_', \$changes_since_version;
+defvalopt '--distro',        '-d', '.+',      \$idistro;
+defvalopt '',                '-k', '.+',      \$keyid;
+defvalopt '--existing-package','', '.*',      \$existing_package;
+defvalopt '--build-products-dir','','.*',     \$buildproductsdir;
+defvalopt '--clean',       '', $cleanmode_re, \$cleanmode;
+defvalopt '--quilt',     '', $quilt_modes_re, \$quilt_mode;
+
+defvalopt '', '-c', '.*=.*', sub { push @git, '-c', @_; };
+
+defvalopt '', '-C', '.+', sub {
+    ($changesfile) = (@_);
+    if ($changesfile =~ s#^(.*)/##) {
+	$buildproductsdir = $1;
+    }
+};
+
+defvalopt '--initiator-tempdir','','.*', sub {
+    ($initiator_tempdir) = (@_);
+    $initiator_tempdir =~ m#^/# or
+	badusage "--initiator-tempdir must be used specify an".
+	" absolute, not relative, directory."
+};
+
 sub parseopts () {
     my $om;
 
@@ -3110,6 +3396,27 @@ sub parseopts () {
 	@ssh = ($ENV{'GIT_SSH'});
     }
 
+    my $oi;
+    my $val;
+    my $valopt = sub {
+	my ($what) = @_;
+	@rvalopts = ($_);
+	if (!defined $val) {
+	    badusage "$what needs a value" unless @ARGV;
+	    $val = shift @ARGV;
+	    push @rvalopts, $val;
+	}
+	badusage "bad value \`$val' for $what" unless
+	    $val =~ m/^$oi->{Re}$(?!\n)/s;
+	my $how = $oi->{How};
+	if (ref($how) eq 'SCALAR') {
+	    $$how = $val;
+	} else {
+	    $how->($val);
+	}
+	push @ropts, @rvalopts;
+    };
+
     while (@ARGV) {
 	last unless $ARGV[0] =~ m/^-/;
 	$_ = shift @ARGV;
@@ -3131,9 +3438,6 @@ sub parseopts () {
 	    } elsif (m/^--new$/) {
 		push @ropts, $_;
 		$new_package=1;
-	    } elsif (m/^--since-version=([^_]+|_)$/) {
-		push @ropts, $_;
-		$changes_since_version = $1;
 	    } elsif (m/^--([-0-9a-z]+)=(.+)/s &&
 		     ($om = $opts_opt_map{$1}) &&
 		     length $om->[0]) {
@@ -3144,30 +3448,6 @@ sub parseopts () {
 		     ($om = $opts_opt_map{$1})) {
 		push @ropts, $_;
 		push @$om, $2;
-	    } elsif (m/^--existing-package=(.*)/s) {
-		push @ropts, $_;
-		$existing_package = $1;
-	    } elsif (m/^--initiator-tempdir=(.*)/s) {
-		$initiator_tempdir = $1;
-		$initiator_tempdir =~ m#^/# or
-		    badusage "--initiator-tempdir must be used specify an".
-		        " absolute, not relative, directory."
-	    } elsif (m/^--distro=(.*)/s) {
-		push @ropts, $_;
-		$idistro = $1;
-	    } elsif (m/^--build-products-dir=(.*)/s) {
-		push @ropts, $_;
-		$buildproductsdir = $1;
-	    } elsif (m/^--clean=(dpkg-source(?:-d)?|git|git-ff|check|none)$/s) {
-		push @ropts, $_;
-		$cleanmode = $1;
-	    } elsif (m/^--clean=(.*)$/s) {
-		badusage "unknown cleaning mode \`$1'";
-	    } elsif (m/^--quilt=($quilt_modes_re)$/s) {
-		push @ropts, $_;
-		$quilt_mode = $1;
-	    } elsif (m/^--quilt=(.*)$/s) {
-		badusage "unknown quilt fixup mode \`$1'";
 	    } elsif (m/^--ignore-dirty$/s) {
 		push @ropts, $_;
 		$ignoredirty = 1;
@@ -3177,9 +3457,19 @@ sub parseopts () {
 	    } elsif (m/^--no-rm-on-error$/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, $&;
+	    } elsif (m/^--always-split-source-build$/s) {
+		# undocumented, for testing
+		push @ropts, $_;
+		$need_split_build_invocation = 1;
+	    } elsif (m/^(--[-0-9a-z]+)(=|$)/ && ($oi = $valopts_long{$1})) {
+		$val = $2 ? $' : undef; #';
+		$valopt->($oi->{Long});
 	    } else {
 		badusage "unknown long option \`$_'";
 	    }
@@ -3200,30 +3490,10 @@ sub parseopts () {
 		} elsif (s/^-N/-/) {
 		    push @ropts, $&;
 		    $new_package=1;
-		} elsif (s/^-v([^_]+|_)$//s) {
-		    push @ropts, $&;
-		    $changes_since_version = $1;
 		} elsif (m/^-m/) {
 		    push @ropts, $&;
 		    push @changesopts, $_;
 		    $_ = '';
-		} elsif (s/^-c(.*=.*)//s) {
-		    push @ropts, $&;
-		    push @git, '-c', $1;
-		} elsif (s/^-d(.+)//s) {
-		    push @ropts, $&;
-		    $idistro = $1;
-		} elsif (s/^-C(.+)//s) {
-		    push @ropts, $&;
-		    $changesfile = $1;
-		    if ($changesfile =~ s#^(.*)/##) {
-			$buildproductsdir = $1;
-		    }
-		} elsif (s/^-k(.+)//s) {
-		    $keyid=$1;
-		} elsif (m/^-[vdCk]$/) {
-		    badusage
- "option \`$_' requires an argument (and no space before the argument)";
 		} elsif (s/^-wn$//s) {
 		    push @ropts, $&;
 		    $cleanmode = 'none';
@@ -3242,6 +3512,11 @@ sub parseopts () {
 		} elsif (s/^-wc$//s) {
 		    push @ropts, $&;
 		    $cleanmode = 'check';
+		} elsif (m/^-[a-zA-Z]/ && ($oi = $valopts_short{$&})) {
+		    $val = $'; #';
+		    $val = undef unless length $val;
+		    $valopt->($oi->{Short});
+		    $_ = '';
 		} else {
 		    badusage "unknown short option \`$_'";
 		}
@@ -3295,6 +3570,11 @@ 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')
@@ -3305,6 +3585,15 @@ if (!defined $quilt_mode) {
     $quilt_mode = $1;
 }
 
+if (!defined $cleanmode) {
+    local $access_forpush;
+    $cleanmode = access_cfg('clean-mode', 'RETURN-UNDEF');
+    $cleanmode //= 'dpkg-source';
+
+    badcfg "unknown clean-mode \`$cleanmode'" unless
+	$cleanmode =~ m/^($cleanmode_re)$(?!\n)/s;
+}
+
 my $fn = ${*::}{"cmd_$cmd"};
 $fn or badusage "unknown operation $cmd";
 $fn->();