summaryrefslogtreecommitdiffstats
path: root/scripts/debuild.pl
blob: 7396dc128d71a7af2d80bff323e31ca85bc0fefa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
#!/usr/bin/perl

# Perl version of Christoph Lameter's build program, renamed debuild.
# Written by Julian Gilbey, December 1998.

# Copyright 1999-2003, Julian Gilbey <jdg@debian.org>
#
# 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
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.

# We will do simple option processing.  The calling syntax of this
# program is:
#
#   debuild [<debuild options>] -- binary|binary-arch|binary-indep|clean ...
# or
#   debuild [<debuild options>] [<dpkg-buildpackage options>]
#            [--lintian-opts <lintian options>]
#
# In the first case, debuild will simply run debian/rules with the
# given parameter.  Available options are listed in usage() below.
#
# In the second case, the behaviour is to run dpkg-buildpackage and
# then to run lintian on the resulting .changes file.
# Lintian options may be specified after --lintian-opts; all following
# options will be passed only to lintian.
#
# As this may be running setuid, we make sure to clean out the
# environment before we perform the build, subject to any -e etc.
# options.  Also wise for building the packages, anyway.
# We don't put /usr/local/bin in the PATH as Debian
# programs will presumably be built without the use of any locally
# installed programs.  This could be changed, but in which case,
# please add /usr/local/bin at the END so that you don't get any
# unexpected behaviour.

# We will try to preserve the locale variables, but if it turns out that
# this harms the package building process, we will clean them out too.
# Please file a bug report if this is the case!

use strict;
use warnings;
use 5.008;
use File::Basename;
use filetest 'access';
use Cwd;
use Dpkg::Changelog::Parse qw(changelog_parse);
use Dpkg::IPC;
use IO::Handle;                         # for flushing
use vars qw(*BUILD *OLDOUT *OLDERR);    # prevent a warning

my $progname = basename($0);
my $modified_conf_msg;
my @warnings;

# Predeclare functions
sub setDebuildHook;
sub setDpkgHook;
sub system_withecho(@);
sub run_hook ($$);
sub fatal($);

sub usage {
    print <<"EOF";
First usage method:
  $progname [<debuild options>] -- binary|binary-arch|binary-indep|clean ...
    to run debian/rules with given parameter(s).  Options here are
        --no-conf, --noconf      Don\'t read devscripts config files;
                                 must be the first option given
        --rootcmd=<gain-root-command>, -r<gain-root-command>
                                 Command used to become root if $progname
                                 not setuid root; default=fakeroot

        --preserve-envvar=<envvar>, -e<envvar>
                                 Preserve environment variable <envvar>

        --preserve-env           Preserve all environment vars (except PATH)

        --set-envvar=<envvar>=<value>, -e<envvar>=<value>
                                 Set environment variable <envvar> to <value>

        --prepend-path=<value>   Prepend <value> to the sanitised PATH

        -d                       Skip checking of build dependencies
        -D                       Force checking of build dependencies (default)

        --check-dirname-level N
                How much to check directory names:
                N=0   never
                N=1   only if program changes directory (default)
                N=2   always

        --check-dirname-regex REGEX
                What constitutes a matching directory name; REGEX is
                a Perl regular expression; the string \`PACKAGE\' will
                be replaced by the package name; see manpage for details
                (default: 'PACKAGE(-.+)?')

        --help, -h    display this message

        --version     show version and copyright information

Second usage method:
  $progname [<debuild options>] [<dpkg-buildpackage options>]
             [--lintian-opts <lintian options>]
    to run dpkg-buildpackage and then run lintian on the resulting
    .changes file.

    Additional debuild options available in this case are:

        --lintian           Run lintian (default)
        --no-lintian        Do not run lintian
        --[no-]tgz-check    Do [not] check for an .orig.tar.gz before running
                            dpkg-buildpackage if we have a Debian revision
                            (Default: check)
        --username          Run debrsign instead of debsign, using the
                            supplied credentials

        --dpkg-buildpackage-hook=HOOK
        --clean-hook=HOOK
        --dpkg-source-hook=HOOK
        --build-hook=HOOK
        --binary-hook=HOOK
        --dpkg-genchanges-hook=HOOK
        --final-clean-hook=HOOK
        --lintian-hook=HOOK
        --signing-hook=HOOK
        --post-dpkg-buildpackage-hook=HOOK
                            These hooks run at the various stages of the
                            dpkg-buildpackage run.  For details, see the
                            debuild manpage.  They default to nothing, and
                            can be reset to nothing with --foo-hook=''
        --clear-hooks       Clear all hooks

    For available dpkg-buildpackage and lintian options, see their
    respective manpages.

Default settings modified by devscripts configuration files:
$modified_conf_msg
EOF
}

sub version {
    print <<"EOF";
This is $progname, from the Debian devscripts package, version ###VERSION###
This code is copyright 1999-2003 by Julian Gilbey <jdg\@debian.org>,
all rights reserved.
Based on a shell-script program by Christoph Lameter.
This program comes with ABSOLUTELY NO WARRANTY.
You are free to redistribute this code under the terms of the
GNU General Public License, version 2 or later.
EOF
}

# Start by reading configuration files and then command line
# The next stuff is somewhat boilerplate and somewhat not.
# It's complicated by the fact that the config files are in shell syntax,
# and we don't want to have to write a general shell parser in Perl.
# So we'll get the shell to do the work.  Yuck.
# We allow DEBUILD_PRESERVE_ENVVARS="VAR1,VAR2,VAR3"
# and DEBUILD_SET_ENVVAR_VAR1=VAL1, DEBUILD_SET_ENVVAR_VAR2=VAR2.

# Set default values before we start
my $preserve_env = 0;
my %save_vars;
my $root_command       = '';
my $run_lintian        = 1;
my $lintian_exists     = 0;
my @dpkg_extra_opts    = ();
my @lintian_extra_opts = ();
my @lintian_opts       = ();
my $checkbuilddep;
my $check_dirname_level = 1;
my $check_dirname_regex = 'PACKAGE(-.+)?';
my $logging             = 0;
my $tgz_check           = 1;
my $prepend_path        = '';
my $username            = '';
my @hooks               = (
    qw(dpkg-buildpackage clean dpkg-source build binary dpkg-genchanges
      final-clean lintian signing post-dpkg-buildpackage)
);
my %hook;
@hook{@hooks} = ('') x @hooks;
# dpkg-buildpackage runs all hooks in the source tree, while debuild runs some
# in the parent directory.  Use %externalHook to check which run out of tree
my %externalHook;
@externalHook{@hooks}                   = (0) x @hooks;
$externalHook{lintian}                  = 1;
$externalHook{signing}                  = 1;
$externalHook{'post-dpkg-buildpackage'} = 1;
# Track which hooks are run by dpkg-buildpackage vs. debuild
my %dpkgHook;
@dpkgHook{@hooks}                   = (1) x @hooks;
$dpkgHook{lintian}                  = 0;
$dpkgHook{signing}                  = 0;
$dpkgHook{'post-dpkg-buildpackage'} = 0;

# First handle private options from cvs-debuild
my ($cvsdeb_file, $cvslin_file);
if (@ARGV and $ARGV[0] eq '--cvs-debuild') {
    shift;
    $check_dirname_level = 0;    # no need to check dirnames if we're being
                                 # called from cvs-debuild
    if (@ARGV and $ARGV[0] eq '--cvs-debuild-deb') {
        shift;
        $cvsdeb_file = shift;
        unless ($cvsdeb_file =~ m%^/dev/fd/\d+$%) {
            fatal
              "--cvs-debuild-deb is an internal option and should not be used";
        }
    }
    if (@ARGV and $ARGV[0] eq '--cvs-debuild-lin') {
        shift;
        $cvslin_file = shift;
        unless ($cvslin_file =~ m%^/dev/fd/\d+$%) {
            fatal
              "--cvs-debuild-lin is an internal option and should not be used";
        }
    }
    if (defined $cvsdeb_file) {
        local $/;
        open DEBOPTS, $cvsdeb_file
          or fatal "can't open cvs-debuild debuild options file: $!";
        my $opts = <DEBOPTS>;
        close DEBOPTS;

        unshift @ARGV, split(/\0/, $opts, -1);
    }
    if (defined $cvslin_file) {
        local $/;
        open LINOPTS, $cvslin_file
          or fatal "can't open cvs-debuild lin* options file: $!";
        my $opts = <LINOPTS>;
        close LINOPTS;

        push @ARGV, split(/\0/, $opts, -1);
    }
}

if (@ARGV and $ARGV[0] =~ /^--no-?conf$/) {
    $modified_conf_msg = "  (no configuration files read)";
    shift;
} else {
    my @config_files = ('/etc/devscripts.conf', '~/.devscripts');
    my %config_vars  = (
        'DEBUILD_PRESERVE_ENV'                => 'no',
        'DEBUILD_PRESERVE_ENVVARS'            => '',
        'DEBUILD_LINTIAN'                     => 'yes',
        'DEBUILD_ROOTCMD'                     => $root_command,
        'DEBUILD_TGZ_CHECK'                   => 'yes',
        'DEBUILD_DPKG_BUILDPACKAGE_HOOK'      => '',
        'DEBUILD_CLEAN_HOOK'                  => '',
        'DEBUILD_DPKG_SOURCE_HOOK'            => '',
        'DEBUILD_BUILD_HOOK'                  => '',
        'DEBUILD_BINARY_HOOK'                 => '',
        'DEBUILD_DPKG_GENCHANGES_HOOK'        => '',
        'DEBUILD_FINAL_CLEAN_HOOK'            => '',
        'DEBUILD_LINTIAN_HOOK'                => '',
        'DEBUILD_SIGNING_HOOK'                => '',
        'DEBUILD_PREPEND_PATH'                => '',
        'DEBUILD_POST_DPKG_BUILDPACKAGE_HOOK' => '',
        'DEBUILD_SIGNING_USERNAME'            => '',
        'DEVSCRIPTS_CHECK_DIRNAME_LEVEL'      => 1,
        'DEVSCRIPTS_CHECK_DIRNAME_REGEX'      => 'PACKAGE(-.+)?',
    );
    my %config_default   = %config_vars;
    my $dpkg_opts_var    = 'DEBUILD_DPKG_BUILDPACKAGE_OPTS';
    my $lintian_opts_var = 'DEBUILD_LINTIAN_OPTS';

    my $shell_cmd;
    # Set defaults
    $shell_cmd .= qq[unset `set | grep "^DEBUILD_" | cut -d= -f1`;\n];
    foreach my $var (keys %config_vars) {
        $shell_cmd .= qq[$var="$config_vars{$var}";\n];
    }
    foreach my $var ($dpkg_opts_var, $lintian_opts_var) {
        $shell_cmd .= "$var='';\n";
    }
    $shell_cmd .= 'for file in ' . join(" ", @config_files) . "; do\n";
    $shell_cmd .= '[ -f $file ] && . $file; done;' . "\n";
    # Read back values
    foreach my $var (keys %config_vars) { $shell_cmd .= "echo \$$var;\n" }
    foreach my $var ($dpkg_opts_var, $lintian_opts_var) {
        $shell_cmd .= "eval set -- \$$var;\n";
        $shell_cmd .= "echo \">>> $var BEGIN <<<\";\n";
        $shell_cmd
          .= 'while [ $# -gt 0 ]; do printf "%s\n" "$1"; shift; done;' . "\n";
        $shell_cmd .= "echo \">>> $var END <<<\";\n";
    }
    # Not totally efficient, but never mind
    $shell_cmd
      .= 'for var in `set | grep "^DEBUILD_SET_ENVVAR_" | cut -d= -f1`; do ';
    $shell_cmd .= 'eval echo $var=\$$var; done;' . "\n";
    # print STDERR "Running shell command:\n$shell_cmd";
    my $shell_out = `/bin/bash -c '$shell_cmd'`;
    # print STDERR "Shell output:\n${shell_out}End shell output\n";
    my @othervars;
    (@config_vars{ keys %config_vars }, @othervars) = split /\n/, $shell_out,
      -1;

    # Check validity
    $config_vars{'DEBUILD_PRESERVE_ENV'} =~ /^(yes|no)$/
      or $config_vars{'DEBUILD_PRESERVE_ENV'} = 'no';
    $config_vars{'DEBUILD_LINTIAN'} =~ /^(yes|no)$/
      or $config_vars{'DEBUILD_LINTIAN'} = 'yes';
    $config_vars{'DEVSCRIPTS_CHECK_DIRNAME_LEVEL'} =~ /^[012]$/
      or $config_vars{'DEVSCRIPTS_CHECK_DIRNAME_LEVEL'} = 1;
    $config_vars{'DEBUILD_TGZ_CHECK'} =~ /^(yes|no)$/
      or $config_vars{'DEBUILD_TGZ_CHECK'} = 'yes';

    foreach my $var (sort keys %config_vars) {
        if ($config_vars{$var} ne $config_default{$var}) {
            $modified_conf_msg .= "  $var=$config_vars{$var}\n";
        }
    }

    # What did we find?
    $preserve_env = $config_vars{'DEBUILD_PRESERVE_ENV'} eq 'yes' ? 1 : 0;
    if ($config_vars{'DEBUILD_PRESERVE_ENVVARS'} ne '') {
        my @preserve_vars = split /\s*,\s*/,
          $config_vars{'DEBUILD_PRESERVE_ENVVARS'};
        foreach my $index (0 .. $#preserve_vars) {
            my $var = $preserve_vars[$index];
            if ($var =~ /\*$/) {
                $var =~ s/([^.])\*$/$1.\*/;
                my @vars = grep /^$var$/, keys %ENV;
                push @preserve_vars, @vars;
                delete $preserve_vars[$index];
            }
        }
        @preserve_vars = map { $_ if defined $_ } @preserve_vars;
        @save_vars{@preserve_vars} = (1) x scalar @preserve_vars;
    }
    $run_lintian         = $config_vars{'DEBUILD_LINTIAN'} eq 'no' ? 0 : 1;
    $root_command        = $config_vars{'DEBUILD_ROOTCMD'};
    $tgz_check           = $config_vars{'DEBUILD_TGZ_CHECK'} eq 'yes' ? 1 : 0;
    $prepend_path        = $config_vars{'DEBUILD_PREPEND_PATH'};
    $username            = $config_vars{'DEBUILD_SIGNING_USERNAME'};
    $check_dirname_level = $config_vars{'DEVSCRIPTS_CHECK_DIRNAME_LEVEL'};
    $check_dirname_regex = $config_vars{'DEVSCRIPTS_CHECK_DIRNAME_REGEX'};

    for my $hookname (@hooks) {
        my $config_name = uc "debuild_${hookname}_hook";
        $config_name =~ tr/-/_/;
        setDebuildHook($hookname, $config_vars{$config_name});
    }

    # Now parse the opts lists
    if (shift @othervars ne ">>> $dpkg_opts_var BEGIN <<<") {
        fatal "internal error: dpkg opts list missing proper header";
    }
    while (($_ = shift @othervars) ne ">>> $dpkg_opts_var END <<<"
        and @othervars) {
        push @dpkg_extra_opts, $_;
    }
    if (!@othervars) {
        fatal "internal error: dpkg opts list missing proper trailer";
    }
    if (@dpkg_extra_opts) {
        $modified_conf_msg
          .= "  $dpkg_opts_var='" . join(" ", @dpkg_extra_opts) . "'\n";
    }

    if (shift @othervars ne ">>> $lintian_opts_var BEGIN <<<") {
        fatal "internal error: lintian opts list missing proper header";
    }
    while (($_ = shift @othervars) ne ">>> $lintian_opts_var END <<<"
        and @othervars) {
        push @lintian_extra_opts, $_;
    }
    if (!@othervars) {
        fatal "internal error: lintian opts list missing proper trailer";
    }
    if (@lintian_extra_opts) {
        $modified_conf_msg
          .= "  $lintian_opts_var='" . join(" ", @lintian_extra_opts) . "'\n";
    }

    # And what is left should be any ENV settings
    foreach my $confvar (@othervars) {
        $confvar =~ /^DEBUILD_SET_ENVVAR_([^=]*)=(.*)$/ or next;
        $ENV{$1}       = $2;
        $save_vars{$1} = 1;
        $modified_conf_msg .= "  $1='$2'\n";
    }

    $modified_conf_msg ||= "  (none)\n";
    chomp $modified_conf_msg;
}

# We first check @dpkg_extra_opts for options which may affect us;
# these were set in a configuration file, so they have lower
# precedence than command line settings.  The options we care about
# at this stage are: -r and those which affect the checkbuilddep setting

foreach (@dpkg_extra_opts) {
    /^-r(.*)$/ and $root_command  = $1, next;
    $_ eq '-d' and $checkbuilddep = 0, next;
    $_ eq '-D' and $checkbuilddep = 1, next;
}

# Check @ARGV for debuild options.
my @preserve_vars = qw(TERM HOME LOGNAME PGPPATH GNUPGHOME GPG_AGENT_INFO
  DBUS_SESSION_BUS_ADDRESS GPG_TTY FAKEROOTKEY LANG DEBEMAIL);
@save_vars{@preserve_vars} = (1) x scalar @preserve_vars;
{
    no locale;
    while (my $arg = shift) {
        my $savearg = $arg;
        my $opt     = '';

        $arg =~ /^(-h|--help)$/ and usage(),   exit 0;
        $arg eq '--version'     and version(), exit 0;

        # Let's do the messy case first
        if ($arg eq '--preserve-envvar') {
            unless (defined($opt = shift)) {
                fatal
"--preserve-envvar requires an argument,\nrun $progname --help for usage information";
            }
            $savearg .= " $opt";
        } elsif ($arg =~ /^--preserve-envvar=(.*)/) {
            $arg = '--preserve-envvar';
            $opt = $1;
        } elsif ($arg eq '--set-envvar') {
            unless (defined($opt = shift)) {
                fatal
"--set-envvar requires an argument,\nrun $progname --help for usage information";
            }
            $savearg .= " $opt";
        } elsif ($arg =~ /^--set-envvar=(.*)/) {
            $arg = '--set-envvar';
            $opt = $1;
        }
        # dpkg-buildpackage now has a -e option, so we have to be
        # careful not to confuse the two; their option will always have
        # the form -e<maintainer email> or similar
        elsif ($arg eq '-e') {
            unless (defined($opt = shift)) {
                fatal
"-e requires an argument,\nrun $progname --help for usage information";
            }
            $savearg .= " $opt";
            if   ($opt =~ /^\w+\*?$/) { $arg = '--preserve-envvar'; }
            else                      { $arg = '--set-envvar'; }
        } elsif ($arg =~ /^-e(\w+\*?)$/) {
            $arg = '--preserve-envvar';
            $opt = $1;
        } elsif ($arg =~ /^-e(\w+=.*)$/) {
            $arg = '--set-envvar';
            $opt = $1;
        } elsif ($arg =~ /^-e/) {
            # seems like a dpkg-buildpackage option, so stop parsing
            unshift @ARGV, $arg;
            last;
        }

        if ($arg eq '--preserve-envvar') {
            if ($opt =~ /^\w+$/) {
                $save_vars{$opt} = 1;
            } elsif ($opt =~ /^\w+\*$/) {
                $opt =~ s/([^.])\*$/$1.\*/;
                my @vars = grep /^$opt$/, keys %ENV;
                @save_vars{@vars} = (1) x scalar @vars;
            } else {
                push @warnings,
                  "Ignoring unrecognised/malformed option: $savearg";
            }
            next;
        }
        if ($arg eq '--set-envvar') {
            if ($opt =~ /^(\w+)=(.*)$/) {
                $ENV{$1}       = $2;
                $save_vars{$1} = 1;
            } else {
                push @warnings,
                  "Ignoring unrecognised/malformed option: $savearg";
            }
            next;
        }

        $arg eq '--preserve-env' and $preserve_env = 1, next;
        if ($arg eq '-E') {
            push @warnings,
"-E is deprecated in debuild, as dpkg-buildpackage now uses it.\nPlease use --preserve-env instead in future.\n";
            $preserve_env = 1;
            next;
        }
        $arg eq '--no-lintian' and $run_lintian = 0, next;
        $arg eq '--lintian'    and $run_lintian = 1, next;
        if ($arg eq '--rootcmd') {
            unless (defined($root_command = shift)) {
                fatal
"--rootcmd requires an argument,\nrun $progname --help for usage information";
            }
            next;
        }
        $arg =~ /^--rootcmd=(.*)/ and $root_command = $1, next;
        if ($arg eq '-r') {
            unless (defined($opt = shift)) {
                fatal
"-r requires an argument,\nrun $progname --help for usage information";
            }
            $root_command = $opt;
            next;
        }
        $arg eq '--tgz-check' and $tgz_check = 1, next;
        $arg =~ /^--no-?tgz-check$/ and $tgz_check = 0, next;
        $arg =~ /^-r(.*)/ and $root_command = $1, next;
        if ($arg =~ /^--check-dirname-level=(.*)$/) {
            $arg = '--check-dirname-level';
            unshift @ARGV, $1;
        }    # fall through and let the next one handle it ;-)
        if ($arg eq '--check-dirname-level') {
            unless (defined($opt = shift)) {
                fatal
"--check-dirname-level requires an argument,\nrun $progname --help for usage information";
            }
            if ($opt =~ /^[012]$/) { $check_dirname_level = $opt; }
            else {
                fatal
"unrecognised --check-dirname-level value (allowed are 0,1,2)";
            }
            next;
        }
        if ($arg eq '--check-dirname-regex') {
            unless (defined($opt = shift)) {
                fatal
"--check-dirname-regex requires an argument,\nrun $progname --help for usage information";
            }
            $check_dirname_regex = $opt;
            next;
        }
        if ($arg =~ /^--check-dirname-regex=(.*)$/) {
            $check_dirname_regex = $1;
            next;
        }

        if ($arg eq '--prepend-path') {
            unless (defined($opt = shift)) {
                fatal
"--prepend-path requires an argument,\nrun $progname --help for usage information";
            }
            $prepend_path = $opt;
            next;
        }
        if ($arg =~ /^--prepend-path=(.*)$/) {
            $prepend_path = $1;
            next;
        }

        if ($arg eq '--username') {
            unless (defined($opt = shift)) {
                fatal
"--username requires an argument,\nrun $progname --help for usage information";
            }
            $username = $opt;
            next;
        }
        if ($arg =~ /^--username=(.*)$/) {
            $username = $1;
            next;
        }

        if ($arg =~ /^--no-?conf$/) {
            fatal "$arg is only acceptable as the first command-line option!";
        }
        $arg eq '-d' and $checkbuilddep = 0, next;
        $arg eq '-D' and $checkbuilddep = 1, next;

        # hooks...
        if ($arg =~ /^--(.*)-hook$/) {
            my $argkey = $1;
            unless (exists $hook{$argkey}) {
                fatal
"unknown hook $arg,\nrun $progname --help for usage information";
            }
            unless (defined($opt = shift)) {
                fatal
"$arg requires an argument,\nrun $progname --help for usage information";
            }

            setDebuildHook($argkey, $opt);
            next;
        }

        if ($arg =~ /^--(.*?)-hook=(.*)/) {
            my $argkey = $1;
            my $opt    = $2;

            unless (exists $hook{$argkey}) {
                fatal
"unknown hook option $arg,\nrun $progname --help for usage information";
            }

            setDebuildHook($argkey, $opt);
            next;
        }

        if ($arg =~ /^--hook-(check|sign|done)=(.*)$/) {
            my $name = $1;
            my $opt  = $2;
            unless (defined($opt)) {
                fatal
"$arg requires an argmuent,\nrun $progname --help for usage information";
            }
            if ($name eq 'check') {
                setDpkgHook('lintian', $opt);
            } elsif ($name eq 'sign') {
                setDpkgHook('signing', $opt);
            } else {
                setDpkgHook('post-dpkg-buildpackage', $opt);
            }
            next;
        }

        if ($arg eq '--clear-hooks') { $hook{@hooks} = ('') x @hooks; next; }

        # Not a debuild option, so give up.
        unshift @ARGV, $arg;
        last;
    }
}

if ($save_vars{'PATH'}) {
    # Untaint PATH.  Very dangerous in general, but anyone running this
    # as root can do anything anyway.
    $ENV{'PATH'} =~ /^(.*)$/;
    $ENV{'PATH'} = $1;
} else {
    $ENV{'PATH'} = "/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11";
    $ENV{'PATH'} = join(':', $prepend_path, $ENV{'PATH'}) if $prepend_path;
}
$save_vars{'PATH'} = 1;
$ENV{'TERM'}       = 'dumb' unless exists $ENV{'TERM'};

# Store a few variables for safe keeping.
my %store_vars;
foreach my $var ((
        'DBUS_SESSION_BUS_ADDRESS', 'DISPLAY',
        'GNOME_KEYRING_SOCKET',     'GPG_AGENT_INFO',
        'SSH_AUTH_SOCK',            'XAUTHORITY'
    )
) {
    $store_vars{$var} = $ENV{$var} if defined $ENV{$var};
}

unless ($preserve_env) {
    foreach my $var (keys %ENV) {
        delete $ENV{$var}
          unless $save_vars{$var}
          or $var =~ /^(LC|DEB)_[A-Z_]+$/
          or $var =~ /^(C(PP|XX)?|LD|F)FLAGS(_APPEND)?$/
          or $var eq 'SOURCE_DATE_EPOCH';
    }
}

umask 022;

# Start by duping STDOUT and STDERR
open OLDOUT, ">&", \*STDOUT or fatal "can't dup stdout: $!\n";
open OLDERR, ">&", \*STDERR or fatal "can't dup stderr: $!\n";

# Look for the debian changelog
my $chdir = 0;
until (-r 'debian/changelog') {
    $chdir = 1;
    chdir '..' or fatal "can't chdir ..: $!";
    if (cwd() eq '/') {
        fatal
"cannot find readable debian/changelog anywhere!\nAre you in the source code tree?";
    }
}

# Find the source package name and version number
my %changelog;
my $c = changelog_parse();
@changelog{ 'Source', 'Version', 'Distribution' }
  = @{$c}{ 'Source', 'Version', 'Distribution' };

fatal "no package name in changelog!"
  unless exists $changelog{'Source'};
my $pkg = $changelog{'Source'};
fatal "no version number in changelog!"
  unless exists $changelog{'Version'};
my $version = $changelog{'Version'};
(my $sversion = $version)  =~ s/^\d+://;
(my $uversion = $sversion) =~ s/-[a-z0-9+\.]+$//i;

# Is the directory name acceptable?
if ($check_dirname_level == 2
    or ($check_dirname_level == 1 and $chdir)) {
    my $re = $check_dirname_regex;
    $re =~ s/PACKAGE/\\Q$pkg\\E/g;
    my $gooddir;
    if   ($re =~ m%/%) { $gooddir = eval "cwd() =~ /^$re\$/;"; }
    else               { $gooddir = eval "basename(cwd()) =~ /^$re\$/;"; }

    if (!$gooddir) {
        my $pwd = cwd();
        die <<"EOF";
$progname: found debian/changelog for package $pkg in the directory
  $pwd
but this directory name does not match the package name according to the
regex  $check_dirname_regex.

To run $progname on this package, see the --check-dirname-level and
--check-dirname-regex options; run $progname --help for more info.
EOF
    }
}

if (!-f "debian/rules") {
    my $cwd = cwd();
    fatal
"found debian/changelog in directory\n  $cwd\nbut there's no debian/rules there!  Are you in the source code tree?";
}

if (!-x _ ) {
    push @warnings, "Making debian/rules executable!\n";
    chmod 0755, "debian/rules"
      or fatal "couldn't make debian/rules executable: $!";
}

# Pick up superuser privileges if we are running set[ug]id root
my $uid = $<;
if ($< != 0 && $> == 0) { $< = $> }
my $gid = $(;
if ($( != 0 && $) == 0) { $( = $) }

# Our first task is to parse the command line options.

# dpkg-buildpackage variables explicitly initialised in dpkg-buildpackage
my $nosign;
my $forcesign;
my $signsource    = $changelog{Distribution} ne 'UNRELEASED';
my $signchanges   = $changelog{Distribution} ne 'UNRELEASED';
my $signbuildinfo = $changelog{Distribution} ne 'UNRELEASED';
my $binarytarget  = 'binary';
my $since         = '';
my $usepause      = 0;

# extra dpkg-buildpackage variables not initialised there
my $sourceonly      = '';
my $binaryonly      = '';
my $targetarch      = '';
my $targetgnusystem = '';

my $dirn = basename(cwd());

# and one for us
my @debsign_opts = ();
# and one for dpkg-buildpackage if needed
my @dpkg_opts = qw(-us -uc -ui);

my %debuild2dpkg = (
    'dpkg-buildpackage' => 'init',
    'clean'             => 'preclean',
    'dpkg-source'       => 'source',
    'build'             => 'build',
    'binary'            => 'binary',
    'dpkg-genchanges'   => 'changes',
    'final-clean'       => 'postclean',
);

for my $h_name (@hooks) {
    if (exists $debuild2dpkg{$h_name} && $hook{$h_name}) {
        push(@dpkg_opts,
            sprintf('--hook-%s=%s', $debuild2dpkg{$h_name}, $hook{$h_name}));
        delete $hook{$h_name};
    }
}

# Parse dpkg-buildpackage options
# First process @dpkg_extra_opts from above

foreach (@dpkg_extra_opts) {
    $_ eq '-h'
      and warn "You have a -h option in your configuration file!  Ignoring.\n",
      next;
    /^-r/     and next;                             # already been processed
    /^-p/     and push(@debsign_opts, $_), next;    # Key selection options
    /^-k/     and push(@debsign_opts, $_), next;    # Ditto
    /^-[dD]$/ and next;                             # already been processed
    $_ eq '-us'                  and $signsource    = 0, next;
    $_ eq '--unsigned-source'    and $signsource    = 0, next;
    $_ eq '-uc'                  and $signchanges   = 0, next;
    $_ eq '--unsigned-changes'   and $signchanges   = 0, next;
    $_ eq '-ui'                  and $signbuildinfo = 0, next;
    $_ eq '--unsigned-buildinfo' and $signbuildinfo = 0, next;
    $_ eq '--no-sign'            and $nosign        = 1, next;
    $_ eq '--force-sign'         and $forcesign     = 1, next;
    $_ eq '-ap'                  and $usepause      = 1, next;
    /^-a(.*)/   and $targetarch = $1, push(@dpkg_opts, $_), next;
    $_ eq '-tc' and push(@dpkg_opts, $_), next;
    /^-t(.*)/   and $targetgnusystem = $1, push(@dpkg_opts, $_), next;  # Ditto
    $_ eq '-b'  and $binaryonly      = $_, $binarytarget = 'binary',
      push(@dpkg_opts, $_), next;
    $_ eq '-B' and $binaryonly = $_, $binarytarget = 'binary-arch',
      push(@dpkg_opts, $_), next;
    $_ eq '-A' and $binaryonly = $_, $binarytarget = 'binary-indep',
      push(@dpkg_opts, $_), next;
    $_ eq '-S' and $sourceonly   = $_, push(@dpkg_opts, $_), next;
    $_ eq '-F' and $binarytarget = 'binary',       push(@dpkg_opts, $_), next;
    $_ eq '-G' and $binarytarget = 'binary-arch',  push(@dpkg_opts, $_), next;
    $_ eq '-g' and $binarytarget = 'binary-indep', push(@dpkg_opts, $_), next;

    if (/^--build=(.*)$/) {
        my $argstr = $_;
        my @builds = split(/,/, $1);
        my ($binary, $source);
        for my $build (@builds) {
            if ($build =~ m/^(?:binary|full)$/) {
                $source++ if $1 eq 'full';
                $binary++;
                $binarytarget = 'binary';
            } elsif ($build eq 'any') {
                $binary++;
                $binarytarget = 'binary-arch';
            } elsif ($build eq 'all') {
                $binary++;
                $binarytarget = 'binary-indep';
            }
        }
        $binaryonly = (!$source && $binary);
        $sourceonly = ($source  && !$binary);
        push(@dpkg_opts, $argstr);
    }
    /^-v(.*)/ and $since = $1, push(@dpkg_opts, $_), next;
    /^-m(.*)/ and push(@debsign_opts, $_), push(@dpkg_opts, $_), next;
    /^-e(.*)/ and push(@debsign_opts, $_), push(@dpkg_opts, $_), next;
    push(@dpkg_opts, $_);
}

while ($_ = shift) {
    $_ eq '-h' and usage(), exit 0;
    /^-r(.*)/  and $root_command = $1, next;
    /^-p/ and push(@debsign_opts, $_), next;    # Key selection options
    /^-k/ and push(@debsign_opts, $_), next;    # Ditto
    $_ eq '-us'                  and $signsource    = 0, next;
    $_ eq '--unsigned-source'    and $signsource    = 0, next;
    $_ eq '-uc'                  and $signchanges   = 0, next;
    $_ eq '--unsigned-changes'   and $signchanges   = 0, next;
    $_ eq '-ui'                  and $signbuildinfo = 0, next;
    $_ eq '--unsigned-buildinfo' and $signbuildinfo = 0, next;
    $_ eq '--no-sign'            and $nosign        = 1, next;
    $_ eq '--force-sign'         and $forcesign     = 1, next;
    $_ eq '-ap'                  and $usepause      = 1, next;
    /^-a(.*)/   and $targetarch = $1, push(@dpkg_opts, $_), next;
    $_ eq '-tc' and push(@dpkg_opts, $_), next;
    /^-t(.*)/   and $targetgnusystem = $1, next;
    $_ eq '-b'  and $binaryonly      = $_, $binarytarget = 'binary',
      push(@dpkg_opts, $_), next;
    $_ eq '-B' and $binaryonly = $_, $binarytarget = 'binary-arch',
      push(@dpkg_opts, $_), next;
    $_ eq '-A' and $binaryonly = $_, $binarytarget = 'binary-indep',
      push(@dpkg_opts, $_), next;
    $_ eq '-S' and $sourceonly   = $_, push(@dpkg_opts, $_), next;
    $_ eq '-F' and $binarytarget = 'binary',       push(@dpkg_opts, $_), next;
    $_ eq '-G' and $binarytarget = 'binary-arch',  push(@dpkg_opts, $_), next;
    $_ eq '-g' and $binarytarget = 'binary-indep', push(@dpkg_opts, $_), next;

    if (/^--build=(.*)$/) {
        my $argstr = $_;
        my @builds = split(/,/, $1);
        my ($binary, $source);
        for my $build (@builds) {
            if ($build eq 'full') {
                $source++;
                $binary++;
                $binarytarget = 'binary';
            } elsif ($build eq 'binary') {
                $binary++;
                $binarytarget = 'binary';
            } elsif ($build eq 'any') {
                $binary++;
                $binarytarget = 'binary-arch';
            } elsif ($build eq 'all') {
                $binary++;
                $binarytarget = 'binary-indep';
            }
        }
        $binaryonly = (!$source && $binary);
        $sourceonly = ($source  && !$binary);
        push(@dpkg_opts, $argstr);
    }
    /^-v(.*)/ and $since = $1, push(@dpkg_opts, $_), next;
    /^-m(.*)/ and push(@debsign_opts, $_), push(@dpkg_opts, $_), next;
    /^-e(.*)/ and push(@debsign_opts, $_), push(@dpkg_opts, $_), next;

    # these non-dpkg-buildpackage options make us stop
    if ($_ eq '--lintian-opts') {
        unshift @ARGV, $_;
        last;
    }
    if ($_ eq '--') {
        last;
    }
    push(@dpkg_opts, $_);
}

# Pick up lintian options if necessary
if (@ARGV) {
    # Check that option is sensible
    if ($ARGV[0] eq '--lintian-opts') {
        if (!$run_lintian) {
            push @warnings, "$ARGV[0] option given but not running lintian!";
        }
        shift;
        push(@lintian_opts, @ARGV);
        undef @ARGV;
    }
}

if ($nosign) {
    $signchanges   = 0;
    $signsource    = 0;
    $signbuildinfo = 0;
}

if ($forcesign) {
    $signchanges   = 1;
    $signsource    = 1;
    $signbuildinfo = 1;
}

if ($signchanges == 1 and $signsource == 0) {
    push @warnings, "Setting -us without setting -uc, signing .dsc anyway\n";
}

if ($signchanges == 1 and $signbuildinfo == 0) {
    push @warnings,
      "Setting -ui without setting -uc, signing .buildinfo anyway\n";
}

# Next dpkg-buildpackage steps:
# mustsetvar package/version have been done above; we've called the
# results $pkg and $version
# mustsetvar maintainer is only needed for signing, so we leave that
# to debsign or dpkg-sig
# Call to dpkg-architecture to set DEB_{BUILD,HOST}_* environment
# variables
my @dpkgarch = 'dpkg-architecture';
if ($targetarch) {
    push @dpkgarch, "-a${targetarch}";
}
if ($targetgnusystem) {
    push @dpkgarch, "-t${targetgnusystem}";
}
push @dpkgarch, '-f';

my $archinfo;
spawn(
    exec       => [@dpkgarch],
    to_string  => \$archinfo,
    wait_child => 1
);
foreach (split /\n/, $archinfo) {
    /^(.*)=(.*)$/ and $ENV{$1} = $2;
}

# We need to do the arch, pv, pva stuff to figure out
# what the changes file will be called,
my ($arch, $dsc, $changes, $build);
if ($sourceonly) {
    $arch = 'source';
} elsif ($binarytarget eq 'binary-indep') {
    $arch = 'all';
} else {
    $arch = $ENV{DEB_HOST_ARCH};
}

# Handle dpkg source format "3.0 (git)" packages (no tarballs)
if (-r "debian/source/format") {
    open FMT, "debian/source/format" or die $!;
    my $srcfmt = <FMT>;
    close FMT;
    chomp $srcfmt;
    if ($srcfmt eq "3.0 (git)") { $tgz_check = 0; }
}

$dsc = "${pkg}_${sversion}.dsc";
my $orig_prefix = "${pkg}_${uversion}.orig.tar";
my $origdir     = basename(cwd()) . ".orig";
if (   !$binaryonly
    and $tgz_check
    and $uversion ne $sversion
    and !-f "../${orig_prefix}.bz2"
    and !-f "../${orig_prefix}.lzma"
    and !-f "../${orig_prefix}.gz"
    and !-f "../${orig_prefix}.xz"
    and !-d "../$origdir") {
    print STDERR "This package has a Debian revision number but there does"
      . " not seem to be\nan appropriate original tar file or .orig"
      . " directory in the parent directory;\n(expected one of"
      . " ${orig_prefix}.gz, ${orig_prefix}.bz2,\n${orig_prefix}.lzma, "
      . " ${orig_prefix}.xz or $origdir)\ncontinue anyway? (y/n) ";
    my $ans = <STDIN>;
    exit 1 unless $ans =~ /^y/i;
}

# Convert debuild-specific _APPEND variables to those recognized by
# dpkg-buildpackage
my @buildflags = qw(CPPFLAGS CFLAGS CXXFLAGS FFLAGS LDFLAGS);
foreach my $flag (@buildflags) {
    if (exists $ENV{"${flag}_APPEND"}) {
        $ENV{"DEB_${flag}_APPEND"} = delete $ENV{"${flag}_APPEND"};
    }
}

if (defined($checkbuilddep)) {
    unshift @dpkg_opts, ($checkbuilddep ? "-D" : "-d");
}
unshift @dpkg_opts, "-r$root_command" if $root_command;

if (@ARGV) {
    # Run each rule
    for my $target (@ARGV) {
        system_withecho('dpkg-buildpackage', '--rules-target', $target,
            @dpkg_opts);
    }

    # Any warnings?
    if (@warnings) {
        # Don't know why we need this, but seems that we do, otherwise,
        # the warnings get muddled up with the other output.
        IO::Handle::flush(\*STDOUT);

        my $warns = @warnings > 1 ? "S" : "";
        warn "\nWARNING$warns generated by $progname:\n"
          . join("\n", @warnings) . "\n";
    }
} else {
    if ($run_lintian && system('command -v lintian >/dev/null 2>&1') == 0) {
        $lintian_exists = 1;
    }
    # We'll need to be a bit cleverer to determine the changes file name;
    # see below
    $build   = "${pkg}_${sversion}_${arch}.build";
    $changes = "${pkg}_${sversion}_${arch}.changes";
    open BUILD, "| tee ../$build" or fatal "couldn't open pipe to tee: $!";
    $logging = 1;
    close STDOUT;
    close STDERR;
    open STDOUT, ">&BUILD" or fatal "can't reopen stdout: $!";
    open STDERR, ">&BUILD" or fatal "can't reopen stderr: $!";

    system_withecho('dpkg-buildpackage', @dpkg_opts);

    chdir '..' or fatal "can't chdir: $!";

    open CHANGES, '<', $changes or fatal "can't open $changes for reading: $!";
    my @changefilecontents = <CHANGES>;
    close CHANGES;

    # check Ubuntu merge Policy: When merging with Debian, -v must be used
    # and the remaining changes described
    my $ch = join "\n", @changefilecontents;
    if (   $sourceonly
        && $version         =~ /ubuntu1$/
        && $ENV{'DEBEMAIL'} =~ /ubuntu/
        && $ch              =~ /(merge|sync).*Debian/i) {
        push(@warnings,
"Ubuntu merge policy: when merging Ubuntu packages with Debian, -v must be used"
        ) unless $since;
        push(@warnings,
"Ubuntu merge policy: when merging Ubuntu packages with Debian, changelog must describe the remaining Ubuntu changes"
          )
          unless $ch
          =~ /Changes:.*(remaining|Ubuntu)(.|\n )*(differen|changes)/is;
    }

    run_hook('lintian', $run_lintian && $lintian_exists);

    if ($run_lintian && $lintian_exists) {
        $< = $> = $uid;    # Give up on root privileges if we can
        $( = $) = $gid;
        my @lintian
          = ('lintian', @lintian_extra_opts, @lintian_opts, $changes);
        print "Now running @lintian ...\n";
        system(@lintian);
        print "Finished running lintian.\n";
    }

    # They've insisted.  Who knows why?!
    if (($signchanges or $signsource) and $usepause) {
        print "Press the return key to start signing process\n";
        <STDIN>;
    }

    run_hook('signing', ($signchanges || (!$sourceonly and $signsource)));

    if ($signchanges) {
        foreach my $var (keys %store_vars) {
            $ENV{$var} = $store_vars{$var};
        }
        print "Now signing changes and any dsc files...\n";
        if ($username) {
            system('debrsign', @debsign_opts, $username, $changes) == 0
              or fatal "running debrsign failed";
        } else {
            system('debsign', @debsign_opts, $changes) == 0
              or fatal "running debsign failed";
        }
    } elsif (!$sourceonly and $signsource) {
        print "Now signing dsc file...\n";
        if ($username) {
            system('debrsign', @debsign_opts, $username, $dsc) == 0
              or fatal "running debrsign failed";
        } else {
            system('debsign', @debsign_opts, $dsc) == 0
              or fatal "running debsign failed";
        }
    }

    run_hook('post-dpkg-buildpackage', 1);

    # Any warnings?
    if (@warnings) {
        # Don't know why we need this, but seems that we do, otherwise,
        # the warnings get muddled up with the other output.
        IO::Handle::flush(\*STDOUT);

        my $warns = @warnings > 1 ? "S" : "";
        warn "\nWARNING$warns generated by $progname:\n"
          . join("\n", @warnings) . "\n";
    }
    # close the logging process
    close STDOUT;
    close STDERR;
    close BUILD;
    open STDOUT, ">&", \*OLDOUT;
    open STDERR, ">&", \*OLDERR;
}
exit 0;

###### Subroutines

sub setDebuildHook() {
    my ($name, $val) = @_;

    unless (grep /^$name$/, @hooks) {
        fatal
          "unknown hook $name,\nrun $progname --help for usage information";
    }

    if ($externalHook{$name} && $dpkgHook{$name} && $val) {
        $hook{$name} = 'cd ..; ' . $val;
    } else {
        $hook{$name} = $val;
    }
}

sub setDpkgHook() {
    my ($name, $val) = @_;

    unless (grep /^$name$/, @hooks) {
        fatal
          "unknown hook $name,\nrun $progname --help for usage information";
    }

    if ($externalHook{$name} && !$dpkgHook{$name} && $val) {
        $hook{$name} = 'cd ..; ' . $val;
    } else {
        $hook{$name} = $val;
    }
}

sub system_withecho(@) {
    print STDERR " ", join(" ", @_), "\n";
    system(@_);
    if ($? >> 8) {
        fatal "@_ failed";
    }
}

sub run_hook ($$) {
    my ($hook, $act) = @_;
    return unless $hook{$hook};

    print STDERR " Running $hook-hook\n";
    my $hookcmd = $hook{$hook};
    $act = $act ? 1 : 0;
    my %per = (
        "%" => "%",
        "p" => $pkg,
        "v" => $version,
        "s" => $sversion,
        "u" => $uversion,
        "a" => $act
    );
    $hookcmd =~ s/\%(.)/exists $per{$1} ? $per{$1} :
	(warn ("Unrecognised \% substitution in hook: \%$1\n"), "\%$1")/eg;

    system_withecho($hookcmd);

    if ($? >> 8) {
        warn "$progname: $hook-hook failed\n";
        exit($? >> 8);
    }
}

sub fatal($) {
    my ($pack, $file, $line);
    ($pack, $file, $line) = caller();
    (my $msg = "$progname: fatal error at line $line:\n@_\n") =~ tr/\0//d;
    $msg =~ s/\n\n$/\n/;
    # redirect stderr before we die...
    if ($logging) {
        close STDOUT;
        close STDERR;
        close BUILD;
        open STDOUT, ">&", \*OLDOUT;
        open STDERR, ">&", \*OLDERR;
    }
    die $msg;
}