X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit;h=4550a86d897a8bb2e208e62b7630f2838f8a7401;hp=eb263b10f188f58a0ffcfb61ee09fa8e5208cb97;hb=bd9da469ec0702223270445ced410a54fb3d5158;hpb=8f04e1aea8377adbd2e8b178a32b31770373e902

diff --git a/dgit b/dgit
index eb263b10..4550a86d 100755
--- a/dgit
+++ b/dgit
@@ -24,17 +24,22 @@ use Data::Dumper;
 use LWP::UserAgent;
 use Dpkg::Control::Hash;
 use File::Path;
+use File::Basename;
 use Dpkg::Version;
 use POSIX;
 
 our $isuite = 'unstable';
+our $idistro;
 our $package;
 
 our $sign = 1;
 our $dryrun = 0;
 our $changesfile;
 our $new_package = 0;
+our $ignoredirty = 0;
+our $noquilt = 0;
 our $existing_package = 'dpkg';
+our $cleanmode = 'dpkg-source';
 
 our %format_ok = map { $_=>1 } ("1.0","3.0 (native)","3.0 (quilt)");
 
@@ -42,16 +47,21 @@ our (@git) = qw(git);
 our (@dget) = qw(dget);
 our (@dput) = qw(dput);
 our (@debsign) = qw(debsign);
-our (@sbuild) = qw(sbuild);
+our (@sbuild) = qw(sbuild -A);
 our (@dpkgbuildpackage) = qw(dpkg-buildpackage -i\.git/ -I.git);
+our (@dpkgsource) = qw(dpkg-source -i\.git/ -I.git);
+our (@dpkggenchanges) = qw(dpkg-genchanges);
 our (@mergechanges) = qw(mergechanges -f);
-
+our (@changesopts) = ('');
 
 our %opts_opt_map = ('dget' => \@dget,
 		     'dput' => \@dput,
 		     'debsign' => \@debsign,
                      'sbuild' => \@sbuild,
-                     'dpkg-buildpackage' => \@dpkgbuildpackage;
+                     'dpkg-source' => \@dpkgsource,
+                     'dpkg-buildpackage' => \@dpkgbuildpackage,
+                     'dpkg-genchanges' => \@dpkggenchanges,
+                     'ch' => \@changesopts,
                      'mergechanges' => \@mergechanges);
 
 our $keyid;
@@ -60,27 +70,42 @@ our $debug = 0;
 open DEBUG, ">/dev/null" or die $!;
 
 our $remotename = 'dgit';
-our $ourdscfield = 'Vcs-Dgit-Master';
+our @ourdscfield = qw(Dgit Vcs-Dgit-Master);
 our $branchprefix = 'dgit';
 our $csuite;
 
 sub lbranch () { return "$branchprefix/$csuite"; }
 my $lbranch_re = '^refs/heads/'.$branchprefix.'/([^/.]+)$';
 sub lref () { return "refs/heads/".lbranch(); }
-sub lrref () { return "refs/remotes/$remotename/$csuite"; }
+sub lrref () { return "refs/remotes/$remotename/$branchprefix/$csuite"; }
 sub rrref () { return "refs/$branchprefix/$csuite"; }
-sub debiantag ($) { return "debian/$_[0]"; }
+sub debiantag ($) { 
+    my ($v) = @_;
+    $v =~ y/~:/_%/;
+    return "debian/$v";
+}
 
-sub dscfn () { return "${package}_${cversion}.dsc"; }
+sub stripepoch ($) {
+    my ($vsn) = @_;
+    $vsn =~ s/^\d+\://;
+    return $vsn;
+}
+
+sub dscfn ($) {
+    my ($vsn) = @_;
+    return "${package}_".(stripepoch $vsn).".dsc";
+}
+
+sub changesopts () { return @changesopts[1..$#changesopts]; }
 
 our $us = 'dgit';
 
-sub fail () { die "$us: @_\n"; }
+sub fail { die "$us: @_\n"; }
 
-sub badcfg () { print STDERR "$us: invalid configuration: @_\n"; exit 12; }
+sub badcfg { print STDERR "$us: invalid configuration: @_\n"; exit 12; }
 
 sub no_such_package () {
-    print STDERR "$us: package $package does not exist in suite $suite\n";
+    print STDERR "$us: package $package does not exist in suite $isuite\n";
     exit 4;
 }
 
@@ -99,6 +124,7 @@ sub url_get {
     my $what = $_[$#_];
     print "downloading $what...\n";
     my $r = $ua->get(@_) or die $!;
+    return undef if $r->code == 404;
     $r->is_success or fail "failed to fetch $what: ".$r->status_line;
     return $r->decoded_content();
 }
@@ -195,6 +221,10 @@ important dgit options:
   -c<name>=<value>    set git config option (used directly by dgit too)
 END
 
+our $later_warning_msg = <<END;
+Perhaps the upload is stuck in incoming.  Using the version from git.
+END
+
 sub badusage {
     print STDERR "$us: @_\n", $helpmsg or die $!;
     exit 8;
@@ -209,15 +239,15 @@ our %defcfg = ('dgit.default.distro' => 'debian',
 	       'dgit.default.username' => '',
 	       'dgit.default.archive-query-default-component' => 'main',
 	       'dgit.default.ssh' => 'ssh',
-	       'dgit-distro.debian.git-host' => 'dgit.debian.net',
+	       'dgit-distro.debian.git-host' => 'git.debian.org',
 	       'dgit-distro.debian.git-proto' => 'git+ssh://',
-	       'dgit-distro.debian.git-path' => '/git/dgit-repos',
+	       'dgit-distro.debian.git-path' => '/git/dgit-repos/repos',
 	       'dgit-distro.debian.git-check' => 'ssh-cmd',
 	       'dgit-distro.debian.git-create' => 'ssh-cmd',
 	       'dgit-distro.debian.sshdakls-host' => 'coccia.debian.org',
 	       'dgit-distro.debian.sshdakls-dir' =>
 	           '/srv/ftp-master.debian.org/ftp/dists',
-	       'dgit-distro.debian.mirror' => 'http://http.debian.net/debian/');
+	       'dgit-distro.debian.mirror' => 'http://ftp.debian.org/debian/');
 
 sub cfg {
     foreach my $c (@_) {
@@ -246,7 +276,7 @@ sub access_distro () {
 
 sub access_cfg (@) {
     my (@keys) = @_;
-    my $distro = access_distro();
+    my $distro = $idistro || access_distro();
     my $value = cfg(map { ("dgit-distro.$distro.$_",
 			   "dgit.default.$_") } @keys);
     return $value;
@@ -276,13 +306,16 @@ sub access_giturl () {
 
 sub parsecontrolfh ($$@) {
     my ($fh, $desc, @opts) = @_;
-    my $c = Dpkg::Control::Hash->new({ 'name' => $desc, @opts });
+    my %opts = ('name' => $desc, @opts);
+    my $c = Dpkg::Control::Hash->new(%opts);
     $c->parse($fh) or die "parsing of $desc failed";
+    return $c;
 }
 
 sub parsecontrol {
     my ($file, $desc) = @_;
-    my $fh = new IO::File '<', $file or die "$file: $!";
+    my $fh = new IO::Handle;
+    open $fh, '<', $file or die "$file: $!";
     my $c = parsecontrolfh($fh,$desc);
     $fh->error and die $!;
     close $fh;
@@ -360,38 +393,41 @@ sub canonicalise_suite_sshdakls ($$) {
 
 sub madison_parse ($) {
     my ($rmad) = @_;
-    if (!length $rmad) {
-	return ();
-    }
-    $rmad =~ m{^ \s*( [^ \t|]+ )\s* \|
-                 \s*( [^ \t|]+ )\s* \|
-                 \s*( [^ \t|/]+ )(?:/([^ \t|/]+))? \s* \|
-                 \s*( [^ \t|]+ )\s* }x or die "$rmad $?";
-    $1 eq $package or die "$rmad $package ?";
-    my $vsn = $2;
-    my $newsuite = $3;
-    my $component;
-    if (defined $4) {
-	$component = $4;
-    } else {
-	$component = access_cfg('archive-query-default-component');
+    my @out;
+    foreach my $l (split /\n/, $rmad) {
+	$l =~ m{^ \s*( [^ \t|]+ )\s* \|
+                  \s*( [^ \t|]+ )\s* \|
+                  \s*( [^ \t|/]+ )(?:/([^ \t|/]+))? \s* \|
+                  \s*( [^ \t|]+ )\s* }x or die "$rmad $?";
+	$1 eq $package or die "$rmad $package ?";
+	my $vsn = $2;
+	my $newsuite = $3;
+	my $component;
+	if (defined $4) {
+	    $component = $4;
+	} else {
+	    $component = access_cfg('archive-query-default-component');
+	}
+	$5 eq 'source' or die "$rmad ?";
+	my $prefix = substr($package, 0, $package =~ m/^l/ ? 4 : 1);
+	my $subpath = "/pool/$component/$prefix/$package/".dscfn($vsn);
+	push @out, [$vsn,$subpath,$newsuite];
     }
-    $5 eq 'source' or die "$rmad ?";
-    my $prefix = substr($package, 0, $package =~ m/^l/ ? 4 : 1);
-    my $subpath = "/pool/$component/$prefix/$package/${package}_$vsn.dsc";
-    return ($vsn,$subpath,$newsuite);
+    return sort { -version_compare_string($a->[0],$b->[0]); } @out;
 }
 
 sub canonicalise_suite_madison ($$) {
     my @r = archive_query_madison($_[0],$_[1]);
     @r or fail
 	"unable to canonicalise suite using package $package".
-	" which does not appear to exist in suite $suite;".
+	" which does not appear to exist in suite $isuite;".
 	" --existing-package may help";
-    return $r[2];
+    return $r[0][2];
 }
 
 sub canonicalise_suite () {
+    return if defined $csuite;
+    fail "cannot operate on $isuite suite" if $isuite eq 'UNRELEASED';
     $csuite = archive_query('canonicalise_suite');
     if ($isuite ne $csuite) {
 	# madison canonicalises for us
@@ -400,17 +436,24 @@ sub canonicalise_suite () {
 }
 
 sub get_archive_dsc () {
-    my ($vsn,$subpath) = archive_query('archive_query');
     canonicalise_suite();
-    if (!defined $vsn) { $dsc=undef; return undef; }
-    $dscurl = access_cfg('mirror').$subpath;
-    $dscdata = url_get($dscurl);
-    my $dscfh = new IO::File \$dscdata, '<' or die $!;
-    print DEBUG Dumper($dscdata) if $debug>1;
-    $dsc = parsecontrolfh($dscfh,$dscurl, allow_pgp=>1);
-    print DEBUG Dumper($dsc) if $debug>1;
-    my $fmt = getfield $dsc 'Format';
-    fail "unsupported source format $fmt, sorry" unless $format_ok{$fmt};
+    my @vsns = archive_query('archive_query');
+    foreach my $vinfo (@vsns) {
+	my ($vsn,$subpath) = @$vinfo;
+	$dscurl = access_cfg('mirror').$subpath;
+	$dscdata = url_get($dscurl);
+	next unless defined $dscdata;
+	$dscurl = access_cfg('mirror').$subpath;
+	$dscdata = url_get($dscurl);
+	my $dscfh = new IO::File \$dscdata, '<' or die $!;
+	print DEBUG Dumper($dscdata) if $debug>1;
+	$dsc = parsecontrolfh($dscfh,$dscurl, allow_pgp=>1);
+	print DEBUG Dumper($dsc) if $debug>1;
+	my $fmt = getfield $dsc, 'Format';
+	fail "unsupported source format $fmt, sorry" unless $format_ok{$fmt};
+	return $dsc;
+    }
+    return undef;
 }
 
 sub check_for_git () {
@@ -435,9 +478,7 @@ sub create_remote_git_repo () {
 	runcmd_ordryrun
 	    (access_cfg('ssh'),access_gituserhost(),
 	     "set -e; cd ".access_cfg('git-path').";".
-	     " mkdir -p $package.git;".
-	     " cd $package.git;".
-	     " if ! test -d objects; then git init --bare; fi");
+	     " cp -a _template $package.git");
     } else {
 	badcfg "unknown git-create \`$how'";
     }
@@ -460,7 +501,7 @@ sub mktree_in_ud_from_only_subdir () {
     $dirs[0] =~ m#^([^/]+)/\.$# or die;
     my $dir = $1;
     chdir $dir or die "$dir $!";
-    die if stat '.git';
+    fail "source package contains .git directory" if stat '.git';
     die $! unless $!==&ENOENT;
     runcmd qw(git init -q);
     rmtree('.git/objects');
@@ -471,14 +512,35 @@ sub mktree_in_ud_from_only_subdir () {
     return ($tree,$dir);
 }
 
+sub dsc_files_info () {
+    foreach my $csumi (['Checksums-Sha256','Digest::SHA', 'new(256)'],
+		       ['Checksums-Sha1',  'Digest::SHA', 'new(1)'],
+		       ['Files',           'Digest::MD5', 'new()']) {
+	my ($fname, $module, $method) = @$csumi;
+	my $field = $dsc->{$fname};
+	next unless defined $field;
+	eval "use $module; 1;" or die $@;
+	my @out;
+	foreach (split /\n/, $field) {
+	    next unless m/\S/;
+	    m/^(\w+) (\d+) (\S+)$/ or
+		fail "could not parse .dsc $fname line \`$_'";
+	    my $digester = eval "$module"."->$method;" or die $@;
+	    push @out, {
+		Hash => $1,
+		Bytes => $2,
+		Filename => $3,
+		Digester => $digester,
+	    };
+	}
+	return @out;
+    }
+    fail "missing any supported Checksums-* or Files field in ".
+	$dsc->get_option('name');
+}
+
 sub dsc_files () {
-    my $field = $dsc->{'Checksums-Sha256'} || $dsc->{Files};
-    fail "missing both Checksums-Sha256 and Files in ".$dsc->get_option('name');
-    map {
-	m/^\w+ \d+ (\S+)$/ or
-	    fail "could not parse .dsc Files/Checksums line \`$_'";
-	$1;
-    } grep m/\S/, split /\n/, $field;
+    map { $_->{Filename} } dsc_files_info();
 }
 
 sub is_orig_file ($) {
@@ -525,7 +587,7 @@ tree $tree
 author $authline
 committer $authline
 
-$chhanges
+$changes
 
 # imported from the archive
 END
@@ -555,17 +617,15 @@ END
             $outputhash = make_commit qw(../commit2.tmp);
 	} elsif ($vcmp > 0) {
 	    print STDERR <<END or die $!;
+
 Version actually in archive:    $cversion (older)
 Last allegedly pushed/uploaded: $oversion (newer or same)
-Perhaps the upload is stuck in incoming.  Using the version from git.
+$later_warning_msg
 END
             $outputhash = $upload_hash;
-	} elsif ($outputhash ne $upload_hash) {
-	    fail "version in archive ($cversion)".
-		" is same as version in git".
-		" to-be-uploaded (upload/) branch ($oversion)".
-		" but archive version hash no commit hash?!";
-        }
+        } else {
+	    $outputhash = $upload_hash;
+	}
     }
     chdir '../../../..' or die $!;
     runcmd @git, qw(update-ref -m),"dgit fetch import $cversion",
@@ -577,10 +637,20 @@ END
 }
 
 sub ensure_we_have_orig () {
-    foreach my $f (dsc_files()) {
+    foreach my $fi (dsc_files_info()) {
+	my $f = $fi->{Filename};
 	next unless is_orig_file($f);
-	if (stat "../$f") {
-	    die "$f ?" unless -f _;
+	if (open F, "<", "../$f") {
+	    $fi->{Digester}->reset();
+	    $fi->{Digester}->addfile(*F);
+	    F->error and die $!;
+	    my $got = $fi->{Digester}->hexdigest();
+	    $got eq $fi->{Hash} or
+		fail "existing file $f has hash $got but .dsc".
+		    " demands hash $fi->{Hash}".
+		    " (perhaps you should delete this file?)";
+	    print "using existing $f\n";
+	    next;
 	} else {
 	    die "$f $!" unless $!==&ENOENT;
 	}
@@ -600,8 +670,14 @@ sub rev_parse ($) {
 
 sub is_fast_fwd ($$) {
     my ($ancestor,$child) = @_;
-    my $mb = cmdoutput @git, qw(merge-base), $ancestor, $child;
-    return rev_parse($mb) eq rev_parse($ancestor);
+    my @cmd = (@git, qw(merge-base), $ancestor, $child);
+    my $mb = cmdoutput_errok @cmd;
+    if (defined $mb) {
+	return rev_parse($mb) eq rev_parse($ancestor);
+    } else {
+	$?==256 or failedcmd @cmd;
+	return 0;
+    }
 }
 
 sub git_fetch_us () {
@@ -613,7 +689,10 @@ sub fetch_from_archive () {
     # ensures that lrref() is what is actually in the archive,
     #  one way or another
     get_archive_dsc() or return 0;
-    $dsc_hash = $dsc->{$ourdscfield};
+    foreach my $field (@ourdscfield) {
+	$dsc_hash = $dsc->{$field};
+	last if defined $dsc_hash;
+    }
     if (defined $dsc_hash) {
 	$dsc_hash =~ m/\w+/ or fail "invalid hash in .dsc \`$dsc_hash'";
 	$dsc_hash = $&;
@@ -632,19 +711,33 @@ sub fetch_from_archive () {
     } else {
 	die "$lrref_fn $!";
     }
-    print DEBUG "previous reference hash $upload_hash\n";
+    print DEBUG "previous reference hash=$upload_hash\n";
     my $hash;
     if (defined $dsc_hash) {
-	fail "missing git history even though dsc has hash -"
-	    " could not find commit $dsc_hash"
-	    " (should be in ".access_giturl()."#".rref().")";
+	fail "missing git history even though dsc has hash -".
+	    " could not find commit $dsc_hash".
+	    " (should be in ".access_giturl()."#".rrref().")"
 	    unless $upload_hash;
 	$hash = $dsc_hash;
 	ensure_we_have_orig();
+	if ($dsc_hash eq $upload_hash) {
+	} elsif (is_fast_fwd($dsc_hash,$upload_hash)) {
+	    print STDERR <<END or die $!;
+
+Git commit in archive is behind the last version allegedly pushed/uploaded.
+Commit referred to by archive:  $dsc_hash
+Last allegedly pushed/uploaded: $upload_hash
+$later_warning_msg
+END
+	    $hash = $upload_hash;
+	} else {
+	    fail "archive's .dsc refers to ".$dsc_hash.
+		" but this is an ancestor of ".$upload_hash;
+	}
     } else {
 	$hash = generate_commit_from_dsc();
     }
-    print DEBUG "current hash $hash\n";
+    print DEBUG "current hash=$hash\n";
     if ($upload_hash) {
 	fail "not fast forward on last upload branch!".
 	    " (archive's version left in DGIT_ARCHIVE)"
@@ -701,35 +794,59 @@ sub pull () {
 }
 
 sub check_not_dirty () {
-    runcmd @git, qw(diff --quiet HEAD);
+    return if $ignoredirty;
+    my @cmd = (@git, qw(diff --quiet HEAD));
+    printcmd(\*DEBUG,"+",@cmd) if $debug>0;
+    $!=0; $?=0; system @cmd;
+    return if !$! && !$?;
+    if (!$! && $?==256) {
+	fail "working tree is dirty (does not match HEAD)";
+    } else {
+	failedcmd @cmd;
+    }
 }
 
-sub commit_quilty_patch ($) {
-    my ($vsn) = @_;
+sub commit_quilty_patch () {
     my $output = cmdoutput @git, qw(status --porcelain);
-    my %fixups = map {$_=>1}
-        (".pc/debian-changes-$vsn/","debian/patches/debian-changes-$vsn");
-    my @files;
+    my %adds;
+    my $bad=0;
     foreach my $l (split /\n/, $output) {
-	next unless $l =~ s/^\?\? //;
-	next unless $fixups{$l};
-	push @files, $l;
+	next unless $l =~ m/\S/;
+	if ($l =~ m{^(?:\?\?| M) (.pc|debian/patches)}) {
+	    $adds{$1}++;
+	} else {
+	    print STDERR "git status: $l\n";
+	    $bad++;
+	}
+    }
+    fail "unexpected output from git status (is tree clean?)" if $bad;
+    if (!%adds) {
+	print "nothing quilty to commit, ok.\n";
+	return;
     }
-    print DEBUG "checking for quilty\n", Dumper(\@files);
-    if (@files == 2) {
-	my $m = "Commit Debian 3.0 (quilt) metadata";
-	print "$m\n";
-	runcmd_ordryrun @git, qw(add), @files;
-	runcmd_ordryrun @git, qw(commit -m), $m;
+    runcmd_ordryrun @git, qw(add), sort keys %adds;
+    my $m = "Commit Debian 3.0 (quilt) metadata";
+    print "$m\n";
+    runcmd_ordryrun @git, qw(commit -m), $m;
+}
+
+sub madformat ($) {
+    my ($format) = @_;
+    return 0 unless $format eq '3.0 (quilt)';
+    print "Format \`$format', urgh\n";
+    if ($noquilt) {
+	print "Not doing any fixup of \`$format' due to --no-quilt-fixup";
+	return 0;
     }
+    return 1;
 }
 
 sub dopush () {
     print DEBUG "actually entering push\n";
     my $clogp = parsechangelog();
-    $package = getfield $clogp 'Source';
+    $package = getfield $clogp, 'Source';
     my $cversion = getfield $clogp, 'Version';
-    my $dscfn = dscfn();
+    my $dscfn = dscfn($cversion);
     stat "../$dscfn" or
 	fail "looked for .dsc $dscfn, but $!;".
 	    " maybe you forgot to build";
@@ -737,13 +854,12 @@ sub dopush () {
     my $dscpackage = getfield $dsc, 'Source';
     my $format = getfield $dsc, 'Format';
     my $dversion = getfield $dsc, 'Version';
-    ($dscpackage eq $package && $dversion eq $cversion)
+    ($dscpackage eq $package && $dversion eq $cversion) or
 	fail "$dsc is for $dscpackage $dversion".
 	    " but debian/changelog is for $package $cversion";
     print DEBUG "format $format\n";
-    if ($format eq '3.0 (quilt)') {
-	print "Format \`$format', urgh\n";
-	commit_quilty_patch($dversion);
+    if (madformat($format)) {
+	commit_quilty_patch();
     }
     check_not_dirty();
     prep_ud();
@@ -752,7 +868,7 @@ sub dopush () {
     runcmd qw(dpkg-source -x --), "../../../../$dscfn";
     my ($tree,$dir) = mktree_in_ud_from_only_subdir();
     chdir '../../../..' or die $!;
-    printcmd \@DEBUG,"+",@_;
+    printcmd \*DEBUG,"+",@_;
     my @diffcmd = (@git, qw(diff --exit-code), $tree);
     $!=0; $?=0;
     if (system @diffcmd) {
@@ -769,15 +885,28 @@ sub dopush () {
 #    runcmd @git, qw(fetch -p ), "$alioth_git/$package.git",
 #        map { lref($_).":".rref($_) }
 #        (uploadbranch());
-    $dsc->{$ourdscfield} = rev_parse('HEAD');
+    $dsc->{$ourdscfield[0]} = rev_parse('HEAD');
     $dsc->save("../$dscfn.tmp") or die $!;
     if (!$changesfile) {
-	my $pat = "${package}_c$version_*.changes";
-	my @cs = glob "../$pat";
-	fail "failed to find unique changes file".
-	    " (looked for $pat in ..); perhaps you need to use dgit -C"
-	    unless @cs==1;
-	($changesfile) = @cs;
+	my $multi = "../${package}_".(stripepoch $cversion)."_multi.changes";
+	if (stat "$multi") {
+	    $changesfile = $multi;
+	} else {
+	    $!==&ENOENT or die "$multi: $!";
+	    my $pat = "${package}_".(stripepoch $cversion)."_*.changes";
+	    my @cs = glob "../$pat";
+	    fail "failed to find unique changes file".
+		" (looked for $pat in .., or $multi);".
+		" perhaps you need to use dgit -C"
+		unless @cs==1;
+	    ($changesfile) = @cs;
+	}
+    }
+    my $changes = parsecontrol($changesfile,$changesfile);
+    foreach my $field (qw(Source Distribution Version)) {
+	$changes->{$field} eq $clogp->{$field} or
+	    fail "changes field $field \`$changes->{$field}'".
+	        " does not match changelog \`$clogp->{$field}'";
     }
     my $tag = debiantag($dversion);
     if (!check_for_git()) {
@@ -790,6 +919,9 @@ sub dopush () {
 	print "[new .dsc left in $dscfn.tmp]\n";
     }
     if ($sign) {
+	if (!defined $keyid) {
+	    $keyid = access_cfg('keyid','RETURN-UNDEF');
+	}
 	my @tag_cmd = (@git, qw(tag -s -m),
 		       "Release $dversion for $csuite [dgit]");
 	push @tag_cmd, qw(-u),$keyid if defined $keyid;
@@ -872,7 +1004,7 @@ sub cmd_pull {
 sub cmd_push {
     parseopts();
     badusage "-p is not allowed with dgit push" if defined $package;
-    runcmd @git, qw(diff --quiet HEAD);
+    check_not_dirty();
     my $clogp = parsechangelog();
     $package = getfield $clogp, 'Source';
     if (@ARGV==0) {
@@ -884,60 +1016,187 @@ sub cmd_push {
     } else {
 	badusage "incorrect arguments to dgit push";
     }
+    if (check_for_git()) {
+	git_fetch_us();
+    }
     if (fetch_from_archive()) {
-	is_fast_fwd(lrref(), 'HEAD') or die;
+	is_fast_fwd(lrref(), 'HEAD') or
+	    fail "dgit push: HEAD is not a descendant".
+	        " of the archive's version.\n".
+		"$us: To overwrite it, use git-merge -s ours ".lrref().".";
     } else {
-	fail "package appears to be new in this suite;".
-	    " if this is intentional, use --new";
+	$new_package or
+	    fail "package appears to be new in this suite;".
+	        " if this is intentional, use --new";
     }
     dopush();
 }
 
-sub cmd_build {
-    # we pass further options and args to git-buildpackage
-    badusage "-p is not allowed with dgit build" if defined $package;
+our $version;
+our $sourcechanges;
+our $dscfn;
+
+our $fakeeditorenv = 'DGIT_FAKE_EDITOR_QUILT';
+
+sub build_maybe_quilt_fixup () {
+    if (!open F, "debian/source/format") {
+	die $! unless $!==&ENOENT;
+	return;
+    }
+    $_ = <F>;
+    F->error and die $!;
+    chomp;
+    return unless madformat($_);
+    # sigh
+    my $clogp = parsechangelog();
+    my $version = getfield $clogp, 'Version';
+    my $author = getfield $clogp, 'Maintainer';
+    my $headref = rev_parse('HEAD');
+    my $time = time;
+    my $ncommits = 3;
+    my $patchname = "auto-$version-$headref-$time";
+    my $msg = cmdoutput @git, qw(log), "-n$ncommits";
+    my $descfn = ".git/dgit/quilt-description.tmp";
+    open O, '>', $descfn or die "$descfn: $!";
+    $msg =~ s/\n/\n /g;
+    $msg =~ s/^\s+$/ ./mg;
+    print O <<END or die $!;
+Description: Automatically generated patch ($clogp->{Version})
+ Last (up to) $ncommits git changes, FYI:
+ .
+ $msg
+Author: $author
+
+---
+
+END
+    close O or die $!;
+    {
+	local $ENV{'EDITOR'} = cmdoutput qw(realpath --), $0;
+	local $ENV{'VISUAL'} = $ENV{'EDITOR'};
+	local $ENV{$fakeeditorenv} = cmdoutput qw(realpath --), $descfn;
+	runcmd_ordryrun @dpkgsource, qw(--commit .), $patchname;
+    }
+
+    if (!open P, '>>', ".pc/applied-patches") {
+	$!==&ENOENT or die $!;
+    } else {
+	close P;
+    }
+
+    commit_quilty_patch();
+}
+
+sub quilt_fixup_editor () {
+    my $descfn = $ENV{$fakeeditorenv};
+    my $editing = $ARGV[$#ARGV];
+    open I1, '<', $descfn or die "$descfn: $!";
+    open I2, '<', $editing or die "$editing: $!";
+    unlink $editing or die "$editing: $!";
+    open O, '>', $editing or die "$editing: $!";
+    while (<I1>) { print O or die $!; } I1->error and die $!;
+    my $copying = 0;
+    while (<I2>) {
+	$copying ||= m/^\-\-\- /;
+	next unless $copying;
+	print O or die $!;
+    }
+    I2->error and die $!;
+    close O or die $1;
+    exit 0;
+}
+
+sub build_prep () {
+    badusage "-p is not allowed when building" if defined $package;
+    check_not_dirty();
     my $clogp = parsechangelog();
     $isuite = getfield $clogp, 'Distribution';
     $package = getfield $clogp, 'Source';
+    $version = getfield $clogp, 'Version';
+    build_maybe_quilt_fixup();
+}
+
+sub cmd_build {
+    badusage "dgit build implies --clean=dpkg-source"
+	if $cleanmode ne 'dpkg-source';
+    build_prep();
+    runcmd_ordryrun @dpkgbuildpackage, qw(-us -uc), changesopts(), @ARGV;
+    printdone "build successful\n";
+}
+
+sub cmd_git_build {
+    badusage "dgit git-build implies --clean=dpkg-source"
+	if $cleanmode ne 'dpkg-source';
+    build_prep();
     my @cmd =
 	(qw(git-buildpackage -us -uc --git-no-sign-tags),
 	 "--git-builder=@dpkgbuildpackage");
-    unless (grep { m/^--git-debian-branch/ } @ARGV) {
+    unless (grep { m/^--git-debian-branch|^--git-ignore-branch/ } @ARGV) {
 	canonicalise_suite();
 	push @cmd, "--git-debian-branch=".lbranch();
     }
+    push @cmd, changesopts();
     runcmd_ordryrun @cmd, @ARGV;
-    print "build successful\n";
+    printdone "build successful\n";
+}
+
+sub build_source {
+    build_prep();
+    $sourcechanges = "${package}_".(stripepoch $version)."_source.changes";
+    $dscfn = dscfn($version);
+    if ($cleanmode eq 'dpkg-source') {
+	runcmd_ordryrun (@dpkgbuildpackage, qw(-us -uc -S)), changesopts();
+    } else {
+	if ($cleanmode eq 'git') {
+	    runcmd_ordryrun @git, qw(clean -xdf);
+	} elsif ($cleanmode eq 'none') {
+	} else {
+	    die "$cleanmode ?";
+	}
+	my $pwd = cmdoutput qw(env - pwd);
+	my $leafdir = basename $pwd;
+	chdir ".." or die $!;
+	runcmd_ordryrun @dpkgsource, qw(-b --), $leafdir;
+	chdir $pwd or die $!;
+	runcmd_ordryrun qw(sh -ec),
+	    'exec >$1; shift; exec "$@"','x',
+	    "../$sourcechanges",
+	    @dpkggenchanges, qw(-S), changesopts();
+    }
+}
+
+sub cmd_build_source {
+    badusage "build-source takes no additional arguments" if @ARGV;
+    build_source();
+    printdone "source built, results in $dscfn and $sourcechanges";
 }
 
 sub cmd_sbuild {
-    check_not_dirty();
-    badusage "-p is not allowed with dgit sbuild" if defined $package;
-    my $clogp = parsechangelog();
-    $package = getfield $clogp, 'Source';
-    my $version = getfield $clogp, 'Version';
-    runcmd (@dpkgbuildpackage, qw(-us -uc -S));
+    build_source();
     chdir ".." or die $!;
-    my $sourcechanges = "${package}_${version}_source.changes";
-    my $dscfn = dscfn();
-    stat "../$dscfn" or fail "$dscfn (in parent directory): $!";
-    stat "../$sourcechanges" or fail "$sourcechanges (in parent directory): $!";
-    my $pat = "${package}_${version}_*.changes";
-    foreach my $cf (glob $pat) {
-	next if $cf eq $sourcechanges;
-	unlink $cf or fail "remove $cf: $!";
-    }
-    runcmd @sbuild, @ARGV, $sourcechanges;
-    runcmd @mergechanges, glob $pat;
-    my $multichanges = "${package}_${version}_multi.changes";
-    stat $multichanges or fail "$multichanges: $!";
-    print "build successful, results in $multichanges\n" or die $!;
+    my $pat = "${package}_".(stripepoch $version)."_*.changes";
+    if (!$dryrun) {
+	stat $dscfn or fail "$dscfn (in parent directory): $!";
+	stat $sourcechanges or fail "$sourcechanges (in parent directory): $!";
+	foreach my $cf (glob $pat) {
+	    next if $cf eq $sourcechanges;
+	    unlink $cf or fail "remove $cf: $!";
+	}
+    }
+    runcmd_ordryrun @sbuild, @ARGV, qw(-d), $isuite, $dscfn;
+    runcmd_ordryrun @mergechanges, glob $pat;
+    my $multichanges = "${package}_".(stripepoch $version)."_multi.changes";
+    if (!$dryrun) {
+	stat $multichanges or fail "$multichanges: $!";
+    }
+    printdone "build successful, results in $multichanges\n" or die $!;
 }    
 
 sub cmd_quilt_fixup {
-    badusage "incorrect arguments to dgit quilt-fixup";
+    badusage "incorrect arguments to dgit quilt-fixup" if @ARGV;
     my $clogp = parsechangelog();
-    commit_quilty_patch((getfield $clogp, Version));
+    $version = getfield $clogp, 'Version';
+    build_maybe_quilt_fixup();
 }
 
 sub parseopts () {
@@ -955,12 +1214,25 @@ sub parseopts () {
 		helponly();
 	    } elsif (m/^--new$/) {
 		$new_package=1;
-	    } elsif (m/^--(\w+)=(.*)/s && ($om = $opts_opt_map{$1})) {
+	    } elsif (m/^--(\w+)=(.*)/s &&
+		     ($om = $opts_opt_map{$1}) &&
+		     length $om->[0]) {
 		$om->[0] = $2;
-	    } elsif (m/^--(\w+):(.*)/s && ($om = $opts_opt_map{$1})) {
+	    } elsif (m/^--(\w+):(.*)/s &&
+		     ($om = $opts_opt_map{$1})) {
 		push @$om, $2;
 	    } elsif (m/^--existing-package=(.*)/s) {
 		$existing_package = $1;
+	    } elsif (m/^--distro=(.*)/s) {
+		$idistro = $1;
+	    } elsif (m/^--clean=(dpkg-source|git|none)$/s) {
+		$cleanmode = $1;
+	    } elsif (m/^--clean=(.*)$/s) {
+		badusage "unknown cleaning mode \`$1'";
+	    } elsif (m/^--ignore-dirty$/s) {
+		$ignoredirty = 1;
+	    } elsif (m/^--no-quilt-fixup$/s) {
+		$noquilt = 1;
 	    } else {
 		badusage "unknown long option \`$_'";
 	    }
@@ -975,12 +1247,23 @@ sub parseopts () {
 		    $debug++;
 		} elsif (s/^-N/-/) {
 		    $new_package=1;
+		} elsif (m/^-[vm]/) {
+		    push @changesopts, $_;
+		    $_ = '';
 		} elsif (s/^-c(.*=.*)//s) {
 		    push @git, '-c', $1;
+		} elsif (s/^-d(.*)//s) {
+		    $idistro = $1;
 		} elsif (s/^-C(.*)//s) {
 		    $changesfile = $1;
 		} elsif (s/^-k(.*)//s) {
 		    $keyid=$1;
+		} elsif (s/^-wn//s) {
+		    $cleanmode = 'none';
+		} elsif (s/^-wg//s) {
+		    $cleanmode = 'git';
+		} elsif (s/^-wd//s) {
+		    $cleanmode = 'dpkg-source';
 		} else {
 		    badusage "unknown short option \`$_'";
 		}
@@ -989,6 +1272,12 @@ sub parseopts () {
     }
 }
 
+if ($ENV{$fakeeditorenv}) {
+    quilt_fixup_editor();
+}
+
+delete $ENV{'DGET_UNPACK'};
+
 parseopts();
 print STDERR "DRY RUN ONLY\n" if $dryrun;
 if (!@ARGV) {