X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit;h=c8567ed473d838cab555bfd5c118a7d695eb4bef;hp=aa8f7717248023e2fc86029b206fc0050109010d;hb=17474e7732a9a3fcba657bec60264c2629724d5e;hpb=ef9fb96766ba8b8eaba540a760efa4db4b1bb5da

diff --git a/dgit b/dgit
index aa8f7717..c8567ed4 100755
--- a/dgit
+++ b/dgit
@@ -2,7 +2,8 @@
 # dgit
 # Integration between git and Debian-style archives
 #
-# Copyright (C)2013-2016 Ian Jackson
+# Copyright (C)2013-2017 Ian Jackson
+# Copyright (C)2017 Sean Whitton
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -17,6 +18,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+END { $? = $Debian::Dgit::ExitStatus::desired // -1; };
+use Debian::Dgit::ExitStatus;
+
 use strict;
 
 use Debian::Dgit qw(:DEFAULT :playground);
@@ -30,6 +34,8 @@ use File::Path;
 use File::Temp qw(tempdir);
 use File::Basename;
 use Dpkg::Version;
+use Dpkg::Compression;
+use Dpkg::Compression::Process;
 use POSIX;
 use IPC::Open2;
 use Digest::SHA;
@@ -92,7 +98,7 @@ 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 $orig_f_comp_re = 'orig(?:-[-0-9a-z]+)?';
+our $orig_f_comp_re = qr{orig(?:-$extra_orig_namepart_re)?};
 our $orig_f_sig_re = '\\.(?:asc|gpg|pgp)';
 our $orig_f_tail_re = "$orig_f_comp_re\\.tar(?:\\.\\w+)?(?:$orig_f_sig_re)?";
 
@@ -111,6 +117,7 @@ our (@gpg) = qw(gpg);
 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);
@@ -130,6 +137,7 @@ our %opts_opt_map = ('dget' => \@dget, # accept for compatibility
                      'ssh' => \@ssh,
                      'dgit' => \@dgit,
                      'git' => \@git,
+		     'git-debrebase' => \@git_debrebase,
                      'apt-get' => \@aptget,
                      'apt-cache' => \@aptcache,
                      'dpkg-source' => \@dpkgsource,
@@ -150,6 +158,7 @@ sub parseopts_late_defaults();
 sub setup_gitattrs(;$);
 sub check_gitattrs($$);
 
+our $playground;
 our $keyid;
 
 autoflush STDOUT 1;
@@ -232,7 +241,7 @@ END {
     }
 };
 
-sub badcfg { print STDERR "$us: invalid configuration: @_\n"; exit 12; }
+sub badcfg { print STDERR "$us: invalid configuration: @_\n"; finish 12; }
 
 sub forceable_fail ($$) {
     my ($forceoptsl, $msg) = @_;
@@ -250,7 +259,7 @@ sub forceing ($) {
 
 sub no_such_package () {
     print STDERR "$us: package $package does not exist in suite $isuite\n";
-    exit 4;
+    finish 4;
 }
 
 sub deliberately ($) {
@@ -538,6 +547,7 @@ main usages:
   dgit [dgit-opts] build [dpkg-buildpackage-opts]
   dgit [dgit-opts] sbuild [sbuild-opts]
   dgit [dgit-opts] push [dgit-opts] [suite]
+  dgit [dgit-opts] push-source [dgit-opts] [suite]
   dgit [dgit-opts] rpush build-host:build-dir ...
 important dgit options:
   -k<keyid>           sign tag and package with <keyid> instead of default
@@ -554,7 +564,7 @@ END
 
 sub badusage {
     print STDERR "$us: @_\n", $helpmsg or die $!;
-    exit 8;
+    finish 8;
 }
 
 sub nextarg {
@@ -567,7 +577,7 @@ sub pre_help () {
 }
 sub cmd_help () {
     print $helpmsg or die $!;
-    exit 0;
+    finish 0;
 }
 
 our $td = $ENV{DGIT_TEST_DUMMY_DIR} || "DGIT_TEST_DUMMY_DIR-unset";
@@ -1679,7 +1689,7 @@ our ($dsc_distro, $dsc_hint_tag, $dsc_hint_url);
 
 sub prep_ud () {
     dgit_privdir(); # ensures that $dgit_privdir_made is based on $maindir
-    fresh_playground 'dgit/unpack';
+    $playground = fresh_playground 'dgit/unpack';
 }
 
 sub mktree_in_ud_here () {
@@ -1846,6 +1856,40 @@ sub is_orig_file_of_vsn ($$) {
     return 1;
 }
 
+# This function determines whether a .changes file is source-only from
+# the point of view of dak.  Thus, it permits *_source.buildinfo
+# files.
+#
+# It does not, however, permit any other buildinfo files.  After a
+# source-only upload, the buildds will try to upload files like
+# foo_1.2.3_amd64.buildinfo.  If the package maintainer included files
+# named like this in their (otherwise) source-only upload, the uploads
+# of the buildd can be rejected by dak.  Fixing the resultant
+# situation can require manual intervention.  So we block such
+# .buildinfo files when the user tells us to perform a source-only
+# upload (such as when using the push-source subcommand with the -C
+# option, which calls this function).
+#
+# Note, though, that when dgit is told to prepare a source-only
+# upload, such as when subcommands like build-source and push-source
+# without -C are used, dgit has a more restrictive notion of
+# source-only .changes than dak: such uploads will never include
+# *_source.buildinfo files.  This is because there is no use for such
+# files when using a tool like dgit to produce the source package, as
+# dgit ensures the source is identical to git HEAD.
+sub test_source_only_changes ($) {
+    my ($changes) = @_;
+    foreach my $l (split /\n/, getfield $changes, 'Files') {
+        $l =~ m/\S+$/ or next;
+        # \.tar\.[a-z0-9]+ covers orig.tar and the tarballs in native packages
+        unless ($& =~ m/(?:\.dsc|\.diff\.gz|\.tar\.[a-z0-9]+|_source\.buildinfo)$/) {
+            print "purportedly source-only changes polluted by $&\n";
+            return 0;
+        }
+    }
+    return 1;
+}
+
 sub changes_update_origs_from_dsc ($$$$) {
     my ($dsc, $changes, $upstreamvsn, $changesfile) = @_;
     my %changes_f;
@@ -3469,7 +3513,7 @@ sub fork_for_multisuite ($) {
 					       sub {
             @end = ();
             fetch();
-	    exit 0;
+	    finish 0;
 	});
 	# xxx collecte the ref here
 
@@ -3653,15 +3697,7 @@ sub check_not_dirty () {
 
     return if $ignoredirty;
 
-    my @cmd = (@git, qw(diff --quiet HEAD));
-    debugcmd "+",@cmd;
-    $!=0; $?=-1; system @cmd;
-    return if !$?;
-    if ($?==256) {
-	fail "working tree is dirty (does not match HEAD)";
-    } else {
-	failedcmd @cmd;
-    }
+    git_check_unmodified();
 }
 
 sub commit_admin ($) {
@@ -3670,6 +3706,15 @@ sub commit_admin ($) {
     runcmd_ordryrun_local @git, qw(commit -m), $m;
 }
 
+sub quiltify_nofix_bail ($$) {
+    my ($headinfo, $xinfo) = @_;
+    if ($quilt_mode eq 'nofix') {
+	fail "quilt fixup required but quilt mode is \`nofix'\n".
+	    "HEAD commit".$headinfo." differs from tree implied by ".
+	    " debian/patches".$xinfo;
+    }
+}
+
 sub commit_quilty_patch () {
     my $output = cmdoutput @git, qw(status --porcelain);
     my %adds;
@@ -3684,6 +3729,7 @@ sub commit_quilty_patch () {
 	progress "nothing quilty to commit, ok.";
 	return;
     }
+    quiltify_nofix_bail "", " (wanted to commit patch update)";
     my @adds = map { s/[][*?\\]/\\$&/g; $_; } sort keys %adds;
     runcmd_ordryrun_local @git, qw(add -f), @adds;
     commit_admin <<END
@@ -3844,6 +3890,8 @@ sub pseudomerge_make_commit ($$$$ $$) {
 	: !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 $!;
@@ -4240,7 +4288,35 @@ END
 	if ($r==256) {
 	    my $referent = $split_brain ? $dgithead : 'HEAD';
 	    my $diffs = cmdoutput @git, qw(diff --stat), $tree, $dgithead;
-	    fail <<END
+
+	    my @mode_changes;
+	    my $raw = cmdoutput @git,
+		qw(diff --no-renames -z -r --raw), $tree, $dgithead;
+	    my $changed;
+	    foreach (split /\0/, $raw) {
+		if (defined $changed) {
+		    push @mode_changes, "$changed: $_\n" if $changed;
+		    $changed = undef;
+		    next;
+		} elsif (m/^:0+ 0+ /) {
+		    $changed = '';
+		} elsif (m/^:(?:10*)?(\d+) (?:10*)?(\d+) /) {
+		    $changed = "Mode change from $1 to $2"
+		} else {
+		    die "$_ ?";
+		}
+	    }
+	    if (@mode_changes) {
+		fail <<END.(join '', @mode_changes).<<END;
+HEAD specifies a different tree to $dscfn:
+$diffs
+END
+There is a problem with your source tree (see dgit(7) for some hints).
+To see a full diff, run git diff $tree $referent
+END
+	    }
+
+	    fail <<END;
 HEAD specifies a different tree to $dscfn:
 $diffs
 Perhaps you forgot to build.  Or perhaps there is a problem with your
@@ -4444,13 +4520,8 @@ sub cmd_clone {
 }
 
 sub branchsuite () {
-    my @cmd = (@git, qw(symbolic-ref -q HEAD));
-    my $branch = cmdoutput_errok @cmd;
-    if (!defined $branch) {
-	$?==256 or failedcmd @cmd;
-	return undef;
-    }
-    if ($branch =~ m#$lbranch_re#o) {
+    my $branch = git_get_symref();
+    if (defined $branch && $branch =~ m#$lbranch_re#o) {
 	return $1;
     } else {
 	return undef;
@@ -4481,7 +4552,7 @@ sub cmd_fetch {
     parseopts();
     fetchpullargs();
     my $multi_fetched = fork_for_multisuite(sub { });
-    exit 0 if $multi_fetched;
+    finish 0 if $multi_fetched;
     fetch();
 }
 
@@ -4528,6 +4599,21 @@ sub cmd_push {
     dopush();
 }
 
+sub cmd_push_source {
+    prep_push();
+    if ($changesfile) {
+        my $changes = parsecontrol("$buildproductsdir/$changesfile",
+                                   "source changes file");
+        unless (test_source_only_changes($changes)) {
+            fail "user-specified changes file is not source-only";
+        }
+    } else {
+        # Building a source package is very fast, so just do it
+        build_source_for_push();
+    }
+    dopush();
+}
+
 #---------- remote commands' implementation ----------
 
 sub pre_remote_push_build_host {
@@ -4675,7 +4761,7 @@ sub i_resp_complete {
 
     i_cleanup();
     printdebug "all done\n";
-    exit 0;
+    finish 0;
 }
 
 sub i_resp_file ($) {
@@ -5125,11 +5211,7 @@ sub quiltify ($$$$) {
 	    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;
@@ -5506,7 +5588,7 @@ sub quilt_check_splitbrain_cache ($$) {
 	if (!stat "$maindir_gitcommon/logs/refs/$splitbraincache") {
 	    $! == ENOENT or die $!;
 	    printdebug ">(no reflog)\n";
-	    exit 0;
+	    finish 0;
 	}
 	exec @cmd; die $!;
     }
@@ -5632,6 +5714,7 @@ sub quilt_fixup_multipatch ($$$) {
 
     rmtree '.pc';
 
+    rmtree 'debian'; # git checkout commitish paths does not delete!
     runcmd @git, qw(checkout -f), $headref, qw(-- debian);
     my $unapplied=git_add_write_tree();
     printdebug "fake orig tree object $unapplied\n";
@@ -5758,7 +5841,7 @@ sub quilt_fixup_editor () {
     }
     I2->error and die $!;
     close O or die $1;
-    exit 0;
+    finish 0;
 }
 
 sub maybe_apply_patches_dirtily () {
@@ -6113,21 +6196,14 @@ sub cmd_gbp_build {
 }
 sub cmd_git_build { cmd_gbp_build(); } # compatibility with <= 1.0
 
+sub build_source_for_push {
+    build_source();
+    maybe_unapply_patches_again();
+    $changesfile = $sourcechanges;
+}
+
 sub build_source {
     build_prep_early();
-    my $our_cleanmode = $cleanmode;
-    if ($need_split_build_invocation) {
-	# Pretend that clean is being done some other way.  This
-	# forces us not to try to use dpkg-buildpackage to clean and
-	# build source all in one go; and instead we run dpkg-source
-	# (and build_prep() will do the clean since $clean_using_builder
-	# is false).
-	$our_cleanmode = 'ELSEWHERE';
-    }
-    if ($our_cleanmode =~ m/^dpkg-source/) {
-	# dpkg-source invocation (below) will clean, so build_prep shouldn't
-	$clean_using_builder = 1;
-    }
     build_prep();
     $sourcechanges = changespat $version,'source';
     if (act_local()) {
@@ -6135,43 +6211,33 @@ sub build_source {
 	    or fail "remove $sourcechanges: $!";
     }
     $dscfn = dscfn($version);
-    if ($our_cleanmode eq 'dpkg-source') {
-	maybe_apply_patches_dirtily();
-	runcmd_ordryrun_local @dpkgbuildpackage, qw(-us -uc -S),
-	    changesopts();
-    } elsif ($our_cleanmode eq 'dpkg-source-d') {
-	maybe_apply_patches_dirtily();
-	runcmd_ordryrun_local @dpkgbuildpackage, qw(-us -uc -S -d),
-	    changesopts();
+    my @cmd = (@dpkgsource, qw(-b --));
+    if ($split_brain) {
+        changedir $playground;
+        runcmd_ordryrun_local @cmd, "work";
+        my @udfiles = <${package}_*>;
+        changedir $maindir;
+        foreach my $f (@udfiles) {
+            printdebug "source copy, found $f\n";
+            next unless
+              $f eq $dscfn or
+              ($f =~ m/\.debian\.tar(?:\.\w+)$/ &&
+               $f eq srcfn($version, $&));
+            printdebug "source copy, found $f - renaming\n";
+            rename "$playground/$f", "../$f" or $!==ENOENT
+              or fail "put in place new source file ($f): $!";
+        }
     } else {
-	my @cmd = (@dpkgsource, qw(-b --));
-	if ($split_brain) {
-	    changedir $playground;
-	    runcmd_ordryrun_local @cmd, "work";
-	    my @udfiles = <${package}_*>;
-	    changedir $maindir;
-	    foreach my $f (@udfiles) {
-		printdebug "source copy, found $f\n";
-		next unless
-		    $f eq $dscfn or
-		    ($f =~ m/\.debian\.tar(?:\.\w+)$/ &&
-		     $f eq srcfn($version, $&));
-		printdebug "source copy, found $f - renaming\n";
-		rename "$playground/$f", "../$f" or $!==ENOENT
-		    or fail "put in place new source file ($f): $!";
-	    }
-	} else {
-	    my $pwd = must_getcwd();
-	    my $leafdir = basename $pwd;
-	    changedir "..";
-	    runcmd_ordryrun_local @cmd, $leafdir;
-	    changedir $pwd;
-	}
-	runcmd_ordryrun_local qw(sh -ec),
-	    'exec >$1; shift; exec "$@"','x',
-	    "../$sourcechanges",
-	    @dpkggenchanges, qw(-S), changesopts();
+        my $pwd = must_getcwd();
+        my $leafdir = basename $pwd;
+        changedir "..";
+        runcmd_ordryrun_local @cmd, $leafdir;
+        changedir $pwd;
     }
+    runcmd_ordryrun_local qw(sh -ec),
+      'exec >$1; shift; exec "$@"','x',
+      "../$sourcechanges",
+      @dpkggenchanges, qw(-S), changesopts();
 }
 
 sub cmd_build_source {
@@ -6392,6 +6458,7 @@ sub pre_archive_api_query () {
 sub cmd_archive_api_query {
     badusage "need only 1 subpath argument" unless @ARGV==1;
     my ($subpath) = @ARGV;
+    local $isuite = 'DGIT-API-QUERY-CMD';
     my @cmd = archive_api_query_cmd($subpath);
     push @cmd, qw(-f);
     debugcmd ">",@cmd;
@@ -6464,7 +6531,7 @@ sub cmd_setup_new_tree {
 
 sub cmd_version {
     print "dgit version $our_version\n" or die $!;
-    exit 0;
+    finish 0;
 }
 
 our (%valopts_long, %valopts_short);
@@ -6816,7 +6883,7 @@ print STDERR "DAMP RUN - WILL MAKE LOCAL (UNSIGNED) CHANGES\n"
     if $dryrun_level == 1;
 if (!@ARGV) {
     print STDERR $helpmsg or die $!;
-    exit 8;
+    finish 8;
 }
 $cmd = $subcommand = shift @ARGV;
 $cmd =~ y/-/_/;
@@ -6830,3 +6897,5 @@ git_slurp_config();
 my $fn = ${*::}{"cmd_$cmd"};
 $fn or badusage "unknown operation $cmd";
 $fn->();
+
+finish 0;