Annotation of src/usr.bin/pkg-config/pkg-config, Revision 1.90
1.1 ckuethe 1: #!/usr/bin/perl
1.90 ! jsg 2: # $OpenBSD: pkg-config,v 1.89 2017/08/15 01:29:23 jasper Exp $
1.40 jasper 3: # $CSK: pkgconfig.pl,v 1.39 2006/11/27 16:26:20 ckuethe Exp $
1.1 ckuethe 4:
5: # Copyright (c) 2006 Chris Kuethe <ckuethe@openbsd.org>
1.40 jasper 6: # Copyright (c) 2011 Jasper Lievisse Adriaanse <jasper@openbsd.org>
1.1 ckuethe 7: #
8: # Permission to use, copy, modify, and distribute this software for any
9: # purpose with or without fee is hereby granted, provided that the above
10: # copyright notice and this permission notice appear in all copies.
11: #
12: # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13: # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14: # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15: # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16: # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17: # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18: # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19:
20: use strict;
21: use warnings;
1.70 jasper 22: use Config;
1.1 ckuethe 23: use Getopt::Long;
1.4 espie 24: use File::Basename;
1.58 jasper 25: use File::stat;
1.11 espie 26: use OpenBSD::PkgConfig;
1.1 ckuethe 27:
1.71 ajacouto 28: my @PKGPATH = qw(/usr/lib/pkgconfig
29: /usr/local/lib/pkgconfig
30: /usr/local/share/pkgconfig
31: /usr/X11R6/lib/pkgconfig
32: /usr/X11R6/share/pkgconfig);
1.1 ckuethe 33:
1.16 espie 34: if (defined($ENV{PKG_CONFIG_LIBDIR}) && $ENV{PKG_CONFIG_LIBDIR}) {
1.66 jasper 35: @PKGPATH = split(/:/, $ENV{PKG_CONFIG_LIBDIR});
1.16 espie 36: } elsif (defined($ENV{PKG_CONFIG_PATH}) && $ENV{PKG_CONFIG_PATH}) {
1.66 jasper 37: unshift(@PKGPATH, split(/:/, $ENV{PKG_CONFIG_PATH}));
1.1 ckuethe 38: }
39:
40: my $logfile = '';
1.50 jasper 41: if (defined($ENV{PKG_CONFIG_LOG}) && $ENV{PKG_CONFIG_LOG}) {
42: $logfile = $ENV{PKG_CONFIG_LOG};
1.1 ckuethe 43: }
44:
1.33 jasper 45: my $allow_uninstalled =
1.16 espie 46: defined $ENV{PKG_CONFIG_DISABLE_UNINSTALLED} ? 0 : 1;
1.14 espie 47: my $found_uninstalled = 0;
48:
1.75 jasper 49: my $version = '0.27.1'; # pretend to be this version of pkgconfig
1.10 espie 50:
51: my %configs = ();
1.35 espie 52: setup_self();
53:
1.10 espie 54: my %mode = ();
1.11 espie 55: my $variables = {};
1.1 ckuethe 56:
1.56 jasper 57: $variables->{pc_top_builddir} = $ENV{PKG_CONFIG_TOP_BUILD_DIR} //
1.35 espie 58: '$(top_builddir)';
59:
60: $variables->{pc_sysrootdir} //= $ENV{PKG_CONFIG_SYSROOT_DIR};
61: # The default '/' is implied.
1.29 jasper 62:
1.61 jasper 63: defined $ENV{PKG_CONFIG_DEBUG_SPEW} ? $mode{debug} = 1 : $mode{debug} = 0;
1.7 ckuethe 64:
1.4 espie 65: if ($logfile) {
1.35 espie 66: open my $L, ">>" , $logfile or die;
1.51 jasper 67: print $L beautify_list($0, @ARGV), "\n";
1.4 espie 68: close $L;
1.1 ckuethe 69: }
70:
71: # combo arg-parsing and dependency resolution loop. Hopefully when the loop
72: # terminates, we have a full list of packages upon which we depend, and the
73: # right set of compiler and linker flags to use them.
74: #
75: # as each .pc file is loaded, it is stored in %configs, indexed by package
76: # name. this makes it possible to then pull out flags or do substitutions
1.34 jasper 77: # without having to go back and reload the files from disk.
1.1 ckuethe 78:
79: Getopt::Long::Configure('no_ignore_case');
1.68 jasper 80: GetOptions( 'debug' => \$mode{debug},
81: 'help' => \&help, #does not return
82: 'usage' => \&help, #does not return
83: 'list-all' => \$mode{list},
84: 'version' => sub { print "$version\n" ; exit(0);} ,
85: 'errors-to-stdout' => sub { $mode{estdout} = 1},
86: 'print-errors' => sub { $mode{printerr} = 1},
87: 'silence-errors' => sub { $mode{printerr} = 0},
88: 'short-errors' => sub { $mode{printerr} = 0},
1.14 espie 89: 'atleast-pkgconfig-version=s' => \$mode{myminvers},
1.68 jasper 90: 'print-provides' => \$mode{printprovides},
91: 'print-requires' => \$mode{printrequires},
1.30 jasper 92: 'print-requires-private' => \$mode{printrequiresprivate},
1.11 espie 93:
1.68 jasper 94: 'cflags' => sub { $mode{cflags} = 3},
95: 'cflags-only-I' => sub { $mode{cflags} |= 1},
96: 'cflags-only-other' => sub { $mode{cflags} |= 2},
97: 'libs' => sub { $mode{libs} = 7},
98: 'libs-only-l' => sub { $mode{libs} |= 1},
99: 'libs-only-L' => sub { $mode{libs} |= 2},
100: 'libs-only-other' => sub { $mode{libs} |= 4},
101: 'exists' => sub { $mode{exists} = 1} ,
102: 'static' => sub { $mode{static} = 1},
103: 'uninstalled' => sub { $mode{uninstalled} = 1},
104: 'atleast-version=s' => \$mode{minversion},
105: 'exact-version=s' => \$mode{exactversion},
106: 'max-version=s' => \$mode{maxversion},
107: 'modversion' => \$mode{modversion},
108: 'variable=s' => \$mode{variable},
109: 'define-variable=s' => $variables,
1.1 ckuethe 110: );
111:
1.70 jasper 112: # Unconditionally switch to static mode on static arches as --static
113: # may not have been passed explicitly, but we don't want to re-order
114: # and simplify the libs like we do for shared architectures.
115: {
1.88 jasper 116: my @static_archs = qw();
1.70 jasper 117: my $machine_arch = $Config{'ARCH'};
118: if (grep { $_ eq $machine_arch } @static_archs){
119: $mode{static} = 1;
120: }
121: }
122:
1.14 espie 123: # Initial value of printerr depends on the options...
124: if (!defined $mode{printerr}) {
1.61 jasper 125: if (defined $mode{libs}
126: or defined $mode{cflags}
127: or defined $mode{version}
128: or defined $mode{list}) {
1.14 espie 129: $mode{printerr} = 1;
130: } else {
131: $mode{printerr} = 0;
132: }
133: }
134:
1.62 jasper 135: say_debug("\n" . beautify_list($0, @ARGV));
1.13 espie 136:
137: my $rc = 0;
1.1 ckuethe 138:
1.14 espie 139: # XXX pkg-config is a bit weird
1.10 espie 140: {
141: my $p = join(' ', @ARGV);
1.14 espie 142: $p =~ s/^\s+//;
1.66 jasper 143: @ARGV = split(/\,?\s+/, $p);
1.10 espie 144: }
1.1 ckuethe 145:
1.14 espie 146: if ($mode{myminvers}) {
147: exit self_version($mode{myminvers});
148: }
149:
150: if ($mode{list}) {
151: exit do_list();
1.1 ckuethe 152: }
153:
1.13 espie 154: my $cfg_full_list = [];
1.14 espie 155: my $top_config = [];
1.73 jasper 156:
157: # When we got here we're supposed to have had at least one
158: # package as argument.
159: if (!@ARGV){
160: say_error("No package name(s) specified.");
161: exit 1;
162: }
1.1 ckuethe 163:
1.86 jasper 164: # Return the next module from @ARGV, if it turns out to be a comma separated
165: # module list, take the first one and put the rest back to the front.
166: sub get_next_module {
167: my $module = shift @ARGV;
168: my $m;
169: if ($module =~ m/,/) {
170: my @ms = split(/,/, $module);
171: $m = shift @ms;
172: unshift(@ARGV, @ms) if (scalar(@ms) > 0);
173: } else {
174: return $module;
175: }
176:
177: return $m;
178: }
179:
1.1 ckuethe 180: while (@ARGV){
1.86 jasper 181: my $p = get_next_module();
1.13 espie 182: my $op = undef;
183: my $v = undef;
1.85 jca 184: if (@ARGV >= 2 && $ARGV[0] =~ /^[<=>!]+$/ &&
1.59 jasper 185: $ARGV[1] =~ /^[\d\.]+[\w\.]*$/) {
1.13 espie 186: $op = shift @ARGV;
187: $v = shift @ARGV;
1.1 ckuethe 188: }
1.52 jasper 189: # For these modes we just need some meta-information and
190: # parsing the requirements is not needed.
191: if (!($mode{modversion} || $mode{printprovides})) {
192: handle_config($p, $op, $v, $cfg_full_list);
193: }
1.14 espie 194: push(@$top_config, $p);
195: }
196:
197: if ($mode{exists}) {
198: exit $rc;
199: }
200:
201: if ($mode{uninstalled}) {
202: $rc = 1 unless $found_uninstalled;
203: exit $rc;
1.11 espie 204: }
1.1 ckuethe 205:
1.30 jasper 206: if ($mode{modversion} || $mode{printprovides}) {
1.14 espie 207: for my $pkg (@$top_config) {
208: do_modversion($pkg);
209: }
210: }
1.13 espie 211:
1.30 jasper 212: if ($mode{printrequires} || $mode{printrequiresprivate}) {
213: for my $pkg (@$top_config) {
214: print_requires($pkg);
215: }
216: }
217:
1.14 espie 218: if ($mode{minversion}) {
219: my $v = $mode{minversion};
220: for my $pkg (@$top_config) {
221: $rc = 1 unless versionmatch($configs{$pkg}, '>=', $v);
222: }
223: exit $rc;
224: }
225:
226: if ($mode{exactversion}) {
227: my $v = $mode{exactversion};
228: for my $pkg (@$top_config) {
229: $rc = 1 unless versionmatch($configs{$pkg}, '=', $v);
230: }
231: exit $rc;
232: }
233:
1.76 jasper 234: if ($mode{maxversion}) {
1.14 espie 235: my $v = $mode{maxversion};
236: for my $pkg (@$top_config) {
237: $rc = 1 unless versionmatch($configs{$pkg}, '<=', $v);
238: }
239: exit $rc;
240: }
241:
242: my @vlist = ();
243:
244: if ($mode{variable}) {
245: for my $pkg (@$top_config) {
246: do_variable($pkg, $mode{variable});
247: }
248: }
249:
1.70 jasper 250: my $dep_cfg_list = $cfg_full_list;
251:
1.72 espie 252: if ($mode{static}){
253: $dep_cfg_list = [reverse(@$cfg_full_list)];
254: } else {
1.70 jasper 255: $dep_cfg_list = simplify_and_reverse($cfg_full_list);
256: }
1.14 espie 257:
258: if ($mode{cflags} || $mode{libs} || $mode{variable}) {
1.66 jasper 259: push @vlist, do_cflags($dep_cfg_list) if $mode{cflags};
260: push @vlist, do_libs($dep_cfg_list) if $mode{libs};
261: print join(' ', @vlist), "\n" if $rc == 0;
1.1 ckuethe 262: }
263:
1.13 espie 264: exit $rc;
1.1 ckuethe 265:
266: ###########################################################################
267:
1.11 espie 268: sub handle_config
269: {
1.13 espie 270: my ($p, $op, $v, $list) = @_;
1.35 espie 271: my $cfg = cache_find_config($p);
1.13 espie 272:
1.35 espie 273: unshift @$list, $p if defined $cfg;
1.11 espie 274:
1.35 espie 275: if (!defined $cfg) {
276: $rc = 1;
277: return undef;
278: }
1.15 espie 279:
1.35 espie 280: if (defined $op) {
281: if (!versionmatch($cfg, $op, $v)) {
282: mismatch($p, $cfg, $op, $v) if $mode{printerr};
1.13 espie 283: $rc = 1;
284: return undef;
285: }
1.35 espie 286: }
1.11 espie 287:
1.43 jasper 288: my $get_props = sub {
289: my $property = shift;
290:
291: my $deps = $cfg->get_property($property, $variables);
292: if (defined $deps) {
293: for my $dep (@$deps) {
1.46 jasper 294: if ($dep =~ m/^(.*?)\s*([<=>]+)\s*([\d\.]+|[\d\.]+[\w]*[\d]+)$/) {
1.43 jasper 295: handle_config($1, $2, $3, $list);
296: } else {
297: handle_config($dep, undef, undef, $list);
298: }
1.26 jasper 299: }
1.62 jasper 300: say_debug("package $p " . lc($property) . " " . join(',', @$deps));
1.26 jasper 301: }
1.43 jasper 302: };
303:
1.66 jasper 304: if (defined $mode{cflags}
305: or ($mode{static} && $mode{libs})
1.74 jasper 306: or $mode{printrequiresprivate}
307: or $mode{exists}) {
1.64 jasper 308: &$get_props("Requires.private");
309: }
1.43 jasper 310: &$get_props("Requires");
1.26 jasper 311:
1.11 espie 312: }
313:
1.1 ckuethe 314: # look for the .pc file in each of the PKGPATH elements. Return the path or
315: # undef if it's not there
1.4 espie 316: sub pathresolve
317: {
318: my ($p) = @_;
319:
1.14 espie 320: if ($allow_uninstalled && $p !~ m/\-uninstalled$/) {
321: foreach my $d (@PKGPATH) {
322: my $f = "$d/$p-uninstalled.pc";
1.62 jasper 323: say_debug("pathresolve($p) looking in $f");
1.14 espie 324: if (-f $f) {
325: $found_uninstalled = 1;
326: return $f;
327: }
328: }
329: }
330:
1.4 espie 331: foreach my $d (@PKGPATH) {
1.10 espie 332: my $f = "$d/$p.pc";
1.62 jasper 333: say_debug("pathresolve($p) looking in $f");
1.10 espie 334: return $f if -f $f;
1.1 ckuethe 335: }
1.10 espie 336: return undef;
1.1 ckuethe 337: }
338:
1.11 espie 339: sub get_config
340: {
341: my ($f) = @_;
342:
343: my $cfg;
1.33 jasper 344: eval {
1.11 espie 345: $cfg = OpenBSD::PkgConfig->read_file($f);
346: };
347: if (!$@) {
1.37 jasper 348: return validate_config($f, $cfg);
1.11 espie 349: } else {
1.62 jasper 350: say_debug($@);
1.11 espie 351: }
352: return undef;
353: }
354:
1.13 espie 355: sub cache_find_config
356: {
357: my $name = shift;
358:
1.62 jasper 359: say_debug("processing $name");
1.13 espie 360:
361: if (exists $configs{$name}) {
362: return $configs{$name};
363: } else {
364: return $configs{$name} = find_config($name);
365: }
1.37 jasper 366: }
367:
368: # Required elements for a valid .pc file: Name, Description, Version
369: sub validate_config
370: {
371: my ($f, $cfg) = @_;
372: my @required_elems = ('Name', 'Description', 'Version');
1.58 jasper 373:
374: # Check if we're dealing with an empty file, but don't error out just
375: # yet, we'll do that when we realize there's no Name field.
1.61 jasper 376: if (stat($f)->size == 0) {
1.80 jasper 377: say_error("Package file '$f' appears to be empty");
1.58 jasper 378: }
1.37 jasper 379:
380: foreach (@required_elems) {
1.58 jasper 381: my $e = $cfg->get_property($_, $variables);
1.37 jasper 382: if (!defined $e) {
1.39 jasper 383: $f =~ s/(^.*\/)(.*?)\.pc$/$2/g;
1.62 jasper 384: say_error("Package '$f' has no $_: field");
1.37 jasper 385: return undef;
386: }
387: }
388:
389: return $cfg;
1.13 espie 390: }
391:
1.35 espie 392: # pkg-config won't install a pkg-config.pc file itself, but it may be
1.63 jasper 393: # listed as a dependency in other files. so prime the cache with self.
1.35 espie 394: sub setup_self
395: {
396: my $pkg_pc = OpenBSD::PkgConfig->new;
397: $pkg_pc->add_property('Version', $version);
1.38 jasper 398: $pkg_pc->add_variable('pc_path', join(":", @PKGPATH));
1.87 tb 399: $pkg_pc->add_property('URL', "http://man.openbsd.org/pkg-config");
1.63 jasper 400: $pkg_pc->add_property('Description', "fetch metadata about installed software packages");
1.35 espie 401: $configs{'pkg-config'} = $pkg_pc;
402: }
403:
1.11 espie 404: sub find_config
405: {
406: my ($p) = @_;
1.78 jasper 407:
408: # Differentiate between getting a full path and just the module name.
409: my $f = ($p =~ m/\.pc$/ ? $p : pathresolve($p));
1.64 jasper 410:
411: return get_config($f) if defined($f);
412:
1.62 jasper 413: say_error("Package $p was not found in the pkg-config search path");
1.61 jasper 414:
1.11 espie 415: return undef;
416: }
1.1 ckuethe 417:
1.11 espie 418: sub stringize
1.4 espie 419: {
1.11 espie 420: my $list = shift;
1.21 simon 421: my $sep = shift || ',';
1.4 espie 422:
1.11 espie 423: if (defined $list) {
1.21 simon 424: return join($sep, @$list)
1.11 espie 425: } else {
426: return '';
1.1 ckuethe 427: }
428: }
429:
430: #if the variable option is set, pull out the named variable
1.4 espie 431: sub do_variable
432: {
1.11 espie 433: my ($p, $v) = @_;
1.1 ckuethe 434:
1.13 espie 435: my $cfg = cache_find_config($p);
436:
437: if (defined $cfg) {
1.11 espie 438: my $value = $cfg->get_variable($v, $variables);
439: if (defined $value) {
1.13 espie 440: push(@vlist, $value);
1.11 espie 441: }
1.19 espie 442: return undef;
1.11 espie 443: }
1.19 espie 444: $rc = 1;
1.1 ckuethe 445: }
446:
1.30 jasper 447: #if the modversion or print-provides options are set,
448: #pull out the compiler flags
1.4 espie 449: sub do_modversion
450: {
1.11 espie 451: my ($p) = @_;
1.1 ckuethe 452:
1.13 espie 453: my $cfg = cache_find_config($p);
454:
455: if (defined $cfg) {
1.11 espie 456: my $value = $cfg->get_property('Version', $variables);
457: if (defined $value) {
1.60 jasper 458: if (defined($mode{printprovides})){
459: print "$p = " . stringize($value) . "\n";
1.30 jasper 460: return undef;
461: } else {
1.60 jasper 462: print stringize($value), "\n";
1.30 jasper 463: return undef;
464: }
1.11 espie 465: }
466: }
1.13 espie 467: $rc = 1;
1.1 ckuethe 468: }
469:
470: #if the cflags option is set, pull out the compiler flags
1.4 espie 471: sub do_cflags
472: {
1.14 espie 473: my $list = shift;
474:
1.11 espie 475: my $cflags = [];
1.1 ckuethe 476:
1.14 espie 477: foreach my $pkg (@$list) {
1.11 espie 478: my $l = $configs{$pkg}->get_property('Cflags', $variables);
1.89 jasper 479: foreach (@$l) {
1.90 ! jsg 480: unless ($_ =~ /-I\/usr\/include\/*$/) {
1.89 jasper 481: push(@$cflags, $_);
482: }
483: }
1.11 espie 484: }
1.32 jasper 485: my $a = OpenBSD::PkgConfig->compress($cflags,
1.11 espie 486: sub {
487: local $_ = shift;
488: if (($mode{cflags} & 1) && /^-I/ ||
489: ($mode{cflags} & 2) && !/^-I/) {
490: return 1;
491: } else {
492: return 0;
1.4 espie 493: }
1.11 espie 494: });
1.32 jasper 495: if (defined($a) && defined($variables->{pc_sysrootdir})){
1.36 jasper 496: $a =~ s/[\w]?-I/$&$variables->{pc_sysrootdir}/g;
1.32 jasper 497: }
498:
499: return $a;
1.1 ckuethe 500: }
501:
502: #if the lib option is set, pull out the linker flags
1.4 espie 503: sub do_libs
504: {
1.14 espie 505: my $list = shift;
506:
1.11 espie 507: my $libs = [];
1.1 ckuethe 508:
1.68 jasper 509: # In static mode, we have to make sure we discover the libs in dependency
510: # order, not in search order. Ordering matters for static linking:
511: # Start with Libs (first our own, then dependencies), and append
512: # Libs.private (same order as for Libs).
1.14 espie 513: foreach my $pkg (@$list) {
1.11 espie 514: my $l = $configs{$pkg}->get_property('Libs', $variables);
1.89 jasper 515: foreach (@$l) {
1.90 ! jsg 516: unless ($_ =~ /-L\/usr\/lib\/*$/) {
1.89 jasper 517: push(@$libs, $_);
518: }
519: }
1.67 jasper 520: if ($mode{static}) {
521: my $lp = $configs{$pkg}->get_property('Libs.private', $variables);
1.89 jasper 522: foreach (@$lp) {
1.90 ! jsg 523: unless ($_ =~ /-L\/usr\/lib\/*/) {
1.89 jasper 524: push(@$libs, $_);
525: }
526: }
1.67 jasper 527: }
1.11 espie 528: }
1.66 jasper 529:
1.68 jasper 530: # Get the linker path directives (-L) and store it in $a.
531: # $b will be the actual libraries.
1.13 espie 532: my $a = OpenBSD::PkgConfig->compress($libs,
1.11 espie 533: sub {
534: local $_ = shift;
1.13 espie 535: if (($mode{libs} & 2) && /^-L/ ||
1.11 espie 536: ($mode{libs} & 4) && !/^-[lL]/) {
537: return 1;
538: } else {
539: return 0;
1.4 espie 540: }
1.11 espie 541: });
1.32 jasper 542:
543: if (defined($variables->{pc_sysrootdir})){
1.36 jasper 544: $a =~ s/[\w]?-[lL]/$&$variables->{pc_sysrootdir}/g;
1.32 jasper 545: }
546:
1.13 espie 547: if ($mode{libs} & 1) {
548: my $b = OpenBSD::PkgConfig->rcompress($libs,
1.66 jasper 549: sub { shift =~ m/^-l/; });
1.13 espie 550: return ($a, $b);
551: } else {
552: return $a;
553: }
1.1 ckuethe 554: }
555:
556: #list all packages
1.4 espie 557: sub do_list
558: {
1.1 ckuethe 559: my ($p, $x, $y, @files, $fname, $name);
1.20 espie 560: my $error = 0;
561:
1.33 jasper 562: foreach my $p (@PKGPATH) {
563: push(@files, <$p/*.pc>);
1.4 espie 564: }
1.1 ckuethe 565:
566: # Scan the lengths of the package names so I can make a format
567: # string to line the list up just like the real pkgconfig does.
568: $x = 0;
1.4 espie 569: foreach my $f (@files) {
570: $fname = basename($f, '.pc');
571: $y = length $fname;
1.1 ckuethe 572: $x = (($y > $x) ? $y : $x);
573: }
574: $x *= -1;
575:
1.4 espie 576: foreach my $f (@files) {
1.11 espie 577: my $cfg = get_config($f);
1.20 espie 578: if (!defined $cfg) {
1.62 jasper 579: say_warning("Problem reading file $f");
1.20 espie 580: $error = 1;
581: next;
582: }
1.4 espie 583: $fname = basename($f, '.pc');
1.33 jasper 584: printf("%${x}s %s - %s\n", $fname,
1.53 jasper 585: stringize($cfg->get_property('Name', $variables), ' '),
1.21 simon 586: stringize($cfg->get_property('Description', $variables),
587: ' '));
1.1 ckuethe 588: }
1.20 espie 589: return $error;
1.1 ckuethe 590: }
591:
1.4 espie 592: sub help
593: {
1.1 ckuethe 594: print <<EOF
595: Usage: $0 [options]
596: --debug - turn on debugging output
597: --help - this message
598: --usage - this message
599: --list-all - show all packages that $0 can find
1.8 ckuethe 600: --version - print version of pkgconfig
601: --errors-to-stdout - direct error messages to stdout rather than stderr
602: --print-errors - print error messages in case of error
1.34 jasper 603: --print-provides - print all the modules the given package provides
604: --print-requires - print all the modules the given package requires
605: --print-requires-private - print all the private modules the given package requires
1.66 jasper 606: --silence-errors - don\'t print error messages in case of error
1.1 ckuethe 607: --atleast-pkgconfig-version [version] - require a certain version of pkgconfig
608: --cflags package [versionspec] [package [versionspec]]
609: --cflags-only-I - only output -Iincludepath flags
610: --cflags-only-other - only output flags that are not -I
1.11 espie 611: --define-variable=NAME=VALUE - define variables
1.1 ckuethe 612: --libs package [versionspec] [package [versionspec]]
613: --libs-only-l - only output -llib flags
614: --libs-only-L - only output -Llibpath flags
615: --libs-only-other - only output flags that are not -l or -L
616: --exists package [versionspec] [package [versionspec]]
617: --uninstalled - allow for uninstalled versions to be used
1.8 ckuethe 618: --static - adjust output for static linking
619: --atleast-version [version] - require a certain version of a package
1.77 jasper 620: --exact-version [version] - require exactly the specified version of a package
621: --max-version [version] - require at most a certain version of a package
1.8 ckuethe 622: --modversion [package] - query the version of a package
623: --variable var package - return the definition of <var> in <package>
1.1 ckuethe 624: EOF
625: ;
1.22 simon 626: exit 0;
1.1 ckuethe 627: }
628:
629: # do we meet/beat the version the caller requested?
1.4 espie 630: sub self_version
631: {
632: my ($v) = @_;
633: my (@a, @b);
634:
1.66 jasper 635: @a = split(/\./, $v);
636: @b = split(/\./, $version);
1.1 ckuethe 637:
1.4 espie 638: if (($b[0] >= $a[0]) && ($b[1] >= $a[1])) {
1.14 espie 639: return 0;
1.1 ckuethe 640: } else {
1.14 espie 641: return 1;
642: }
643: }
644:
645: sub compare
646: {
647: my ($a, $b) = @_;
1.46 jasper 648: my ($full_a, $full_b) = ($a, $b);
649: my (@suffix_a, @suffix_b);
1.14 espie 650:
1.28 jasper 651: return 0 if ($a eq $b);
1.14 espie 652:
1.46 jasper 653: # is there a valid non-numeric suffix to deal with later?
1.58 jasper 654: # accepted are (in order): a(lpha) < b(eta) < rc < ' '.
1.46 jasper 655: # suffix[0] is the 'alpha' part, suffix[1] is the '1' part in 'alpha1'.
1.59 jasper 656: if ($a =~ s/(rc|beta|b|alpha|a)(\d+)$//) {
1.62 jasper 657: say_debug("valid suffix $1$2 found in $a$1$2.");
1.46 jasper 658: $suffix_a[0] = $1;
659: $suffix_a[1] = $2;
660: }
661:
1.59 jasper 662: if ($b =~ s/(rc|beta|b|alpha|a)(\d+)$//) {
1.62 jasper 663: say_debug("valid suffix $1$2 found in $b$1$2.");
1.46 jasper 664: $suffix_b[0] = $1;
665: $suffix_b[1] = $2;
1.82 jasper 666: }
667:
668: # The above are standard suffixes; deal with single alphabetical
669: # suffixes too, e.g. 1.0.1h
670: if ($a =~ s/([a-zA-Z]){1}$//) {
671: say_debug("valid suffix $1 found in $a$1.");
672: $suffix_a[0] = $1;
673: }
674:
675: if ($b =~ s/([a-zA-Z]){1}$//) {
676: say_debug("valid suffix $1 found in $b$1.");
677: $suffix_b[0] = $1;
1.46 jasper 678: }
679:
1.66 jasper 680: my @a = split(/\./, $a);
681: my @b = split(/\./, $b);
1.14 espie 682:
683: while (@a && @b) { #so long as both lists have something
1.46 jasper 684: if (!(@suffix_a || @suffix_b)) {
685: # simple comparison when no suffixes are in the game.
1.48 jasper 686: my $rc = compare_numeric($a[0], $b[0], 0);
687: return $rc if defined($rc);
1.46 jasper 688: } else {
689: # extended comparison.
1.56 jasper 690: if (((@a == 1) || (@b == 1)) &&
1.46 jasper 691: ($a[0] == $b[0])){
692: # one of the arrays has reached the last element,
693: # compare the suffix.
694:
695: # directly compare suffixes, provided both suffixes
696: # are present.
697: if (@suffix_a && @suffix_b) {
698: my $first_char = sub {
699: return substr(shift, 0, 1);
700: };
701:
702: # suffixes are equal, compare on numeric
703: if (&$first_char($suffix_a[0]) eq
704: &$first_char($suffix_b[0])) {
1.48 jasper 705: return compare_numeric($suffix_a[1], $suffix_b[1], 1);
1.46 jasper 706: }
707:
1.47 jasper 708: # rc beats beta beats alpha
1.46 jasper 709: if (&$first_char($suffix_a[0]) lt &$first_char($suffix_b[0])) {
1.62 jasper 710: say_debug("$full_a (installed) < $full_b (wanted)");
1.46 jasper 711: return -1;
712: } else {
1.62 jasper 713: say_debug("$full_a (installed) > $full_b (wanted)");
1.46 jasper 714: return 1;
715: }
716:
717: } else {
718: # one of either is lacking a suffix,
719: # thereby beating the other.
720: # e.g.: 1.02 > 1.02b1
721: if (@suffix_a) { # a is older
1.62 jasper 722: say_debug("$full_a (installed) < $full_b (wanted)");
1.55 jasper 723: return 1;
1.46 jasper 724: }
725:
726: if (@suffix_b) { # b is older
1.62 jasper 727: say_debug("$full_a (installed) > $full_b (wanted)");
1.55 jasper 728: return -1;
1.46 jasper 729: }
730: }
731: } else {
1.48 jasper 732: my $rc = compare_numeric($a[0], $b[0], 0);
733: return $rc if defined($rc);
1.46 jasper 734: }
735: }
1.14 espie 736: shift @a; shift @b;
737: }
738: return 1 if @a;
739: return -1 if @b;
740: return 0;
1.48 jasper 741: }
742:
743: # simple numeric comparison, with optional equality test.
744: sub compare_numeric
745: {
746: my ($x, $y, $eq) = @_;
747:
1.81 jasper 748: return 1 if $x > $y;
1.48 jasper 749: return -1 if $x < $y;
1.81 jasper 750: return 0 if (($x == $y) and ($eq == 1));
1.48 jasper 751: return undef;
1.1 ckuethe 752: }
753:
754: # got a package meeting the requested specific version?
1.4 espie 755: sub versionmatch
756: {
1.14 espie 757: my ($cfg, $op, $want) = @_;
1.33 jasper 758:
1.1 ckuethe 759: # can't possibly match if we can't find the file
1.11 espie 760: return 0 if !defined $cfg;
761:
1.14 espie 762: my $inst = stringize($cfg->get_property('Version', $variables));
1.11 espie 763:
1.1 ckuethe 764: # can't possibly match if we can't find the version string
1.14 espie 765: return 0 if $inst eq '';
1.1 ckuethe 766:
1.62 jasper 767: say_debug("comparing $want (wanted) to $inst (installed)");
1.14 espie 768: my $value = compare($inst, $want);
1.31 jasper 769: if ($op eq '>=') { return $value >= 0; }
770: elsif ($op eq '=') { return $value == 0; }
771: elsif ($op eq '!=') { return $value != 0; }
772: elsif ($op eq '<') { return $value < 0; }
773: elsif ($op eq '>') { return $value > 0; }
774: elsif ($op eq '<=') { return $value <= 0; }
1.13 espie 775: }
776:
777: sub mismatch
778: {
779: my ($p, $cfg, $op, $v) = @_;
1.53 jasper 780: my $name = stringize($cfg->get_property('Name'), ' ');
1.41 jasper 781: my $version = stringize($cfg->get_property('Version'));
782: my $url = stringize($cfg->get_property('URL'));
783:
1.62 jasper 784: say_warning("Requested '$p $op $v' but version of $name is $version");
785: say_warning("You may find new versions of $name at $url") if $url;
1.13 espie 786: }
787:
788: sub simplify_and_reverse
789: {
790: my $reqlist = shift;
791: my $dejavu = {};
792: my $result = [];
793:
794: for my $item (@$reqlist) {
795: if (!$dejavu->{$item}) {
796: unshift @$result, $item;
797: $dejavu->{$item} = 1;
798: }
799: }
800: return $result;
1.30 jasper 801: }
802:
803: # retrieve and print Requires(.private)
804: sub print_requires
805: {
806: my ($p) = @_;
807:
808: my $cfg = cache_find_config($p);
809:
810: if (defined($cfg)) {
811: my $value;
812:
813: if (defined($mode{printrequires})) {
814: $value = $cfg->get_property('Requires', $variables);
815: } elsif (defined($mode{printrequiresprivate})) {
816: $value = $cfg->get_property('Requires.private', $variables);
817: } else {
1.62 jasper 818: say_debug("Unknown mode for print_requires.");
1.30 jasper 819: return 1;
820: }
821:
822: if (defined($value)) {
823: print "$_\n" foreach (@$value);
824: return undef;
825: }
826: }
827:
828: $rc = 1;
1.35 espie 829: }
830:
831: sub beautify_list
832: {
833: return join(' ', map {"[$_]"} @_);
1.61 jasper 834: }
835:
1.62 jasper 836: sub say_debug
1.61 jasper 837: {
1.62 jasper 838: say_msg(shift) if $mode{debug};
1.61 jasper 839: }
840:
1.62 jasper 841: sub say_error
1.61 jasper 842: {
1.62 jasper 843: say_msg(shift) if $mode{printerr}
844: }
845:
846: sub say_warning
847: {
848: say_msg(shift);
849: }
850:
851: sub say_msg
852: {
1.63 jasper 853: my $str = shift;
1.62 jasper 854:
855: # If --errors-to-stdout was given, close STDERR (to be safe),
856: # then dup the output to STDOUT and delete the key from %mode so we
857: # won't keep checking it. STDERR stays dup'ed.
858: if ($mode{estdout}) {
859: close(STDERR);
860: open(STDERR, ">&STDOUT") or die "Can't dup STDOUT: $!";
861: delete($mode{estdout});
862: }
863:
864: print STDERR $str . "\n";
1.1 ckuethe 865: }
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