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1 #!/usr/bin/perl -w
2 #
3 # Debhelper option processing library.
4 #
5 # Joey Hess GPL copyright 1998-2002
6
7 package Debian::Debhelper::Dh_Getopt;
8 use strict;
9
10 use Debian::Debhelper::Dh_Lib;
11 use Getopt::Long;
12
13 my %exclude_package;
14
15 sub showhelp {
16         my $prog=basename($0);
17         print "Usage: $prog [options]\n\n";
18         print "  $prog is a part of debhelper. See debhelper(7)\n";
19         print "  and $prog(1) for complete usage instructions.\n"; 
20         exit(1);
21 }
22
23 # Passed an option name and an option value, adds packages to the list
24 # of packages. We need this so the list will be built up in the right
25 # order.
26 sub AddPackage { my($option,$value)=@_;
27         if ($option eq 'i' or $option eq 'indep') {
28                 push @{$dh{DOPACKAGES}}, getpackages('indep');
29                 $dh{DOINDEP}=1;
30         }
31         elsif ($option eq 'a' or $option eq 'arch') {
32                 push @{$dh{DOPACKAGES}}, getpackages('arch');
33                 $dh{DOARCH}=1;
34         }
35         elsif ($option eq 'p' or $option eq 'package') {
36                 push @{$dh{DOPACKAGES}}, $value;
37         }
38         elsif ($option eq 's' or $option eq 'same-arch') {
39                 push @{$dh{DOPACKAGES}}, getpackages('same');
40                 $dh{DOSAME}=1;
41         }
42         else {
43                 error("bad option $option - should never happen!\n");
44         }
45 }
46
47 # Adds packages to the list of debug packages.
48 sub AddDebugPackage { my($option,$value)=@_;
49         push @{$dh{DEBUGPACKAGES}}, $value;
50 }
51
52 # Add a package to a list of packages that should not be acted on.
53 sub ExcludePackage { my($option,$value)=@_;
54         $exclude_package{$value}=1;
55 }
56
57 # Add another item to the exclude list.
58 sub AddExclude { my($option,$value)=@_;
59         push @{$dh{EXCLUDE}},$value;
60 }
61
62 # Add a file to the ignore list.
63 sub AddIgnore { my($option,$file)=@_;
64         $dh{IGNORE}->{$file}=1;
65 }
66
67 # This collects non-options values.
68 sub NonOption {
69         push @{$dh{ARGV}}, @_;
70 }
71
72 sub getoptions {
73         my $array=shift;
74         my %options=%{shift()} if ref $_[0];
75
76         Getopt::Long::GetOptionsFromArray($array,
77                 "v" => \$dh{VERBOSE},
78                 "verbose" => \$dh{VERBOSE},
79
80                 "no-act" => \$dh{NO_ACT},
81         
82                 "i" => \&AddPackage,
83                 "indep" => \&AddPackage,
84         
85                 "a" => \&AddPackage,
86                 "arch" => \&AddPackage,
87         
88                 "p=s" => \&AddPackage,
89                 "package=s" => \&AddPackage,
90                 
91                 "N=s" => \&ExcludePackage,
92                 "no-package=s" => \&ExcludePackage,
93         
94                 "remaining-packages" => \$dh{EXCLUDE_LOGGED},
95         
96                 "dbg-package=s" => \&AddDebugPackage,
97                 
98                 "s" => \&AddPackage,
99                 "same-arch" => \&AddPackage,
100         
101                 "n" => \$dh{NOSCRIPTS},
102                 "noscripts" => \$dh{NOSCRIPTS},
103                 "o" => \$dh{ONLYSCRIPTS},
104                 "onlyscripts" => \$dh{ONLYSCRIPTS},
105
106                 "X=s" => \&AddExclude,
107                 "exclude=s" => \&AddExclude,
108                 
109                 "d" => \$dh{D_FLAG},
110         
111                 "k" => \$dh{K_FLAG},
112                 "keep" => \$dh{K_FLAG},
113
114                 "P=s" => \$dh{TMPDIR},
115                 "tmpdir=s" => \$dh{TMPDIR},
116
117                 "u=s", => \$dh{U_PARAMS},
118
119                 "V:s", => \$dh{V_FLAG},
120
121                 "A" => \$dh{PARAMS_ALL},
122                 "all" => \$dh{PARAMS_ALL},
123         
124                 "sourcedir=s" => \$dh{SOURCEDIR},
125                 
126                 "destdir=s" => \$dh{DESTDIR},
127                 
128                 "priority=s" => \$dh{PRIORITY},
129                 
130                 "h|help" => \&showhelp,
131
132                 "mainpackage=s" => \$dh{MAINPACKAGE},
133
134                 "name=s" => \$dh{NAME},
135
136                 "error-handler=s" => \$dh{ERROR_HANDLER},
137                 
138                 "ignore=s" => \&AddIgnore,
139
140                 %options,
141
142                 "<>" => \&NonOption,
143         )
144 }
145
146 # Parse options and set %dh values.
147 sub parseopts {
148         my $options=shift;
149         
150         my @ARGV_extra;
151
152         # DH_INTERNAL_OPTIONS is used to pass additional options from
153         # dh through an override target to a command.
154         if (defined $ENV{DH_INTERNAL_OPTIONS}) {
155                 $ENV{DH_INTERNAL_OPTIONS}=~s/^\s+//;
156                 $ENV{DH_INTERNAL_OPTIONS}=~s/\s+$//;
157                 @ARGV_extra=split(/\s+/,$ENV{DH_INTERNAL_OPTIONS});
158
159                 # Unknown options will be silently ignored.
160                 my $oldwarn=$SIG{__WARN__};
161                 $SIG{__WARN__}=sub {};
162                 getoptions(\@ARGV_extra, $options);
163                 $SIG{__WARN__}=$oldwarn;
164
165                 # Avoid forcing acting on packages specified in
166                 # DH_INTERNAL_OPTIONS. This way, -p can be specified
167                 # at the command line to act on a specific package, and if
168                 # nothing is specified, the excludes will cause the set of
169                 # packages DH_INTERNAL_OPTIONS specifies to be acted on.
170                 if (defined $dh{DOPACKAGES}) {
171                         foreach my $package (getpackages()) {
172                                 if (! grep { $_ eq $package } @{$dh{DOPACKAGES}}) {
173                                         $exclude_package{$package}=1;
174                                 }
175                         }
176                 }
177                 delete $dh{DOPACKAGES};
178                 delete $dh{DOINDEP};
179                 delete $dh{DOARCH};
180                 delete $dh{DOSAME};
181         }
182         
183         # DH_OPTIONS can contain additional options
184         # to be parsed like @ARGV, but with unknown options
185         # skipped.
186         if (defined $ENV{DH_OPTIONS}) {
187                 $ENV{DH_OPTIONS}=~s/^\s+//;
188                 $ENV{DH_OPTIONS}=~s/\s+$//;
189                 @ARGV_extra=split(/\s+/,$ENV{DH_OPTIONS});
190                 my $ret=getoptions(\@ARGV_extra, $options);
191                 if (!$ret) {
192                         warning("warning: ignored unknown options in DH_OPTIONS");
193                 }
194         }
195
196         my $ret=getoptions(\@ARGV, $options);
197         if (!$ret) {
198                 warning("warning: unknown options will be a fatal error in a future debhelper release");
199                 #error("unknown option; aborting");
200         }
201
202         # Check to see if -V was specified. If so, but no parameters were
203         # passed, the variable will be defined but empty.
204         if (defined($dh{V_FLAG})) {
205                 $dh{V_FLAG_SET}=1;
206         }
207         
208         # If we have not been given any packages to act on, assume they
209         # want us to act on them all. Note we have to do this before excluding
210         # packages out, below.
211         if (! defined $dh{DOPACKAGES} || ! @{$dh{DOPACKAGES}}) {
212                 if ($dh{DOINDEP} || $dh{DOARCH} || $dh{DOSAME}) {
213                         # User specified that all arch (in)dep package be
214                         # built, and there are none of that type.
215                         warning("You asked that all arch in(dep) packages be built, but there are none of that type.");
216                         exit(0);
217                 }
218                 push @{$dh{DOPACKAGES}},getpackages();
219         }
220
221         # Remove excluded packages from the list of packages to act on.
222         # Also unique the list, in case some options were specified that
223         # added a package to it twice.
224         my @package_list;
225         my $package;
226         my %packages_seen;
227         foreach $package (@{$dh{DOPACKAGES}}) {
228                 if (defined($dh{EXCLUDE_LOGGED}) &&
229                     grep { $_ eq basename($0) } load_log($package)) {
230                         $exclude_package{$package}=1;
231                 }
232                 if (! $exclude_package{$package}) {
233                         if (! exists $packages_seen{$package}) {
234                                 $packages_seen{$package}=1;
235                                 push @package_list, $package;   
236                         }
237                 }
238         }
239         @{$dh{DOPACKAGES}}=@package_list;
240
241         if (! defined $dh{DOPACKAGES} || ! @{$dh{DOPACKAGES}}) {
242                 warning("No packages to build.");
243                 exit(0);
244         }
245
246         if (defined $dh{U_PARAMS}) {
247                 # Split the U_PARAMS up into an array.
248                 my $u=$dh{U_PARAMS};
249                 undef $dh{U_PARAMS};
250                 push @{$dh{U_PARAMS}}, split(/\s+/,$u);
251         }
252
253         # Anything left in @ARGV is options that appeared after a --
254         # These options are added to the U_PARAMS array, while the
255         # non-option values we collected replace them in @ARGV;
256         push @{$dh{U_PARAMS}}, @ARGV, @ARGV_extra;
257         @ARGV=@{$dh{ARGV}} if exists $dh{ARGV};
258 }
259
260 sub import {
261         # Enable bundling of short command line options.
262         Getopt::Long::config("bundling");
263 }               
264
265 1