Annotation of src/usr.bin/pkg-config/pkg-config, Revision 1.71
1.1 ckuethe 1: #!/usr/bin/perl
1.71 ! ajacouto 2: # $OpenBSD: pkg-config,v 1.70 2011/11/17 11:37:16 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:
1.69 jasper 49: my $version = 0.26; # 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: {
116: my @static_archs = qw(m88k vax);
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 = [];
1.1 ckuethe 156:
157: while (@ARGV){
1.13 espie 158: my $p = shift @ARGV;
159: my $op = undef;
160: my $v = undef;
1.35 espie 161: if (@ARGV >= 2 && $ARGV[0] =~ /^[<=>]+$/ &&
1.59 jasper 162: $ARGV[1] =~ /^[\d\.]+[\w\.]*$/) {
1.13 espie 163: $op = shift @ARGV;
164: $v = shift @ARGV;
1.1 ckuethe 165: }
1.52 jasper 166: # For these modes we just need some meta-information and
167: # parsing the requirements is not needed.
168: if (!($mode{modversion} || $mode{printprovides})) {
169: handle_config($p, $op, $v, $cfg_full_list);
170: }
1.14 espie 171: push(@$top_config, $p);
172: }
173:
174: if ($mode{exists}) {
175: exit $rc;
176: }
177:
178: if ($mode{uninstalled}) {
179: $rc = 1 unless $found_uninstalled;
180: exit $rc;
1.11 espie 181: }
1.1 ckuethe 182:
1.30 jasper 183: if ($mode{modversion} || $mode{printprovides}) {
1.14 espie 184: for my $pkg (@$top_config) {
185: do_modversion($pkg);
186: }
187: }
1.13 espie 188:
1.30 jasper 189: if ($mode{printrequires} || $mode{printrequiresprivate}) {
190: for my $pkg (@$top_config) {
191: print_requires($pkg);
192: }
193: }
194:
1.14 espie 195: if ($mode{minversion}) {
196: my $v = $mode{minversion};
197: for my $pkg (@$top_config) {
198: $rc = 1 unless versionmatch($configs{$pkg}, '>=', $v);
199: }
200: exit $rc;
201: }
202:
203: if ($mode{exactversion}) {
204: my $v = $mode{exactversion};
205: for my $pkg (@$top_config) {
206: $rc = 1 unless versionmatch($configs{$pkg}, '=', $v);
207: }
208: exit $rc;
209: }
210:
211: if ($mode{minversion}) {
212: my $v = $mode{maxversion};
213: for my $pkg (@$top_config) {
214: $rc = 1 unless versionmatch($configs{$pkg}, '<=', $v);
215: }
216: exit $rc;
217: }
218:
219: my @vlist = ();
220:
221: if ($mode{variable}) {
222: for my $pkg (@$top_config) {
223: do_variable($pkg, $mode{variable});
224: }
225: }
226:
1.70 jasper 227: my $dep_cfg_list = $cfg_full_list;
228:
229: if (!$mode{static}){
230: $dep_cfg_list = simplify_and_reverse($cfg_full_list);
231: }
1.14 espie 232:
233: if ($mode{cflags} || $mode{libs} || $mode{variable}) {
1.66 jasper 234: push @vlist, do_cflags($dep_cfg_list) if $mode{cflags};
235: push @vlist, do_libs($dep_cfg_list) if $mode{libs};
236: print join(' ', @vlist), "\n" if $rc == 0;
1.1 ckuethe 237: }
238:
1.13 espie 239: exit $rc;
1.1 ckuethe 240:
241: ###########################################################################
242:
1.11 espie 243: sub handle_config
244: {
1.13 espie 245: my ($p, $op, $v, $list) = @_;
1.35 espie 246: my $cfg = cache_find_config($p);
1.13 espie 247:
1.35 espie 248: unshift @$list, $p if defined $cfg;
1.11 espie 249:
1.35 espie 250: if (!defined $cfg) {
251: $rc = 1;
252: return undef;
253: }
1.15 espie 254:
1.35 espie 255: if (defined $op) {
256: if (!versionmatch($cfg, $op, $v)) {
257: mismatch($p, $cfg, $op, $v) if $mode{printerr};
1.13 espie 258: $rc = 1;
259: return undef;
260: }
1.35 espie 261: }
1.11 espie 262:
1.43 jasper 263: my $get_props = sub {
264: my $property = shift;
265:
266: my $deps = $cfg->get_property($property, $variables);
267: if (defined $deps) {
268: for my $dep (@$deps) {
1.46 jasper 269: if ($dep =~ m/^(.*?)\s*([<=>]+)\s*([\d\.]+|[\d\.]+[\w]*[\d]+)$/) {
1.43 jasper 270: handle_config($1, $2, $3, $list);
271: } else {
272: handle_config($dep, undef, undef, $list);
273: }
1.26 jasper 274: }
1.62 jasper 275: say_debug("package $p " . lc($property) . " " . join(',', @$deps));
1.26 jasper 276: }
1.43 jasper 277: };
278:
1.66 jasper 279: if (defined $mode{cflags}
280: or ($mode{static} && $mode{libs})
281: or $mode{printrequiresprivate}) {
1.64 jasper 282: &$get_props("Requires.private");
283: }
1.43 jasper 284: &$get_props("Requires");
1.26 jasper 285:
1.11 espie 286: }
287:
1.1 ckuethe 288: # look for the .pc file in each of the PKGPATH elements. Return the path or
289: # undef if it's not there
1.4 espie 290: sub pathresolve
291: {
292: my ($p) = @_;
293:
1.14 espie 294: if ($allow_uninstalled && $p !~ m/\-uninstalled$/) {
295: foreach my $d (@PKGPATH) {
296: my $f = "$d/$p-uninstalled.pc";
1.62 jasper 297: say_debug("pathresolve($p) looking in $f");
1.14 espie 298: if (-f $f) {
299: $found_uninstalled = 1;
300: return $f;
301: }
302: }
303: }
304:
1.4 espie 305: foreach my $d (@PKGPATH) {
1.10 espie 306: my $f = "$d/$p.pc";
1.62 jasper 307: say_debug("pathresolve($p) looking in $f");
1.10 espie 308: return $f if -f $f;
1.1 ckuethe 309: }
1.10 espie 310: return undef;
1.1 ckuethe 311: }
312:
1.11 espie 313: sub get_config
314: {
315: my ($f) = @_;
316:
317: my $cfg;
1.33 jasper 318: eval {
1.11 espie 319: $cfg = OpenBSD::PkgConfig->read_file($f);
320: };
321: if (!$@) {
1.37 jasper 322: return validate_config($f, $cfg);
1.11 espie 323: } else {
1.62 jasper 324: say_debug($@);
1.11 espie 325: }
326: return undef;
327: }
328:
1.13 espie 329: sub cache_find_config
330: {
331: my $name = shift;
332:
1.62 jasper 333: say_debug("processing $name");
1.13 espie 334:
335: if (exists $configs{$name}) {
336: return $configs{$name};
337: } else {
338: return $configs{$name} = find_config($name);
339: }
1.37 jasper 340: }
341:
342: # Required elements for a valid .pc file: Name, Description, Version
343: sub validate_config
344: {
345: my ($f, $cfg) = @_;
346: my @required_elems = ('Name', 'Description', 'Version');
1.58 jasper 347:
348: # Check if we're dealing with an empty file, but don't error out just
349: # yet, we'll do that when we realize there's no Name field.
1.61 jasper 350: if (stat($f)->size == 0) {
1.58 jasper 351: my $p = $f;
352: $p =~ s/(^.*\/)(.*?)$/$2/g;
1.62 jasper 353: say_error("Package file '$p' appears to be empty");
1.58 jasper 354: }
1.37 jasper 355:
356: foreach (@required_elems) {
1.58 jasper 357: my $e = $cfg->get_property($_, $variables);
1.37 jasper 358: if (!defined $e) {
1.39 jasper 359: $f =~ s/(^.*\/)(.*?)\.pc$/$2/g;
1.62 jasper 360: say_error("Package '$f' has no $_: field");
1.37 jasper 361: return undef;
362: }
363: }
364:
365: return $cfg;
1.13 espie 366: }
367:
1.35 espie 368: # pkg-config won't install a pkg-config.pc file itself, but it may be
1.63 jasper 369: # listed as a dependency in other files. so prime the cache with self.
1.35 espie 370: sub setup_self
371: {
372: my $pkg_pc = OpenBSD::PkgConfig->new;
373: $pkg_pc->add_property('Version', $version);
1.38 jasper 374: $pkg_pc->add_variable('pc_path', join(":", @PKGPATH));
1.63 jasper 375: $pkg_pc->add_property('URL', "http://www.openbsd.org/cgi-bin/man.cgi?query=pkg-config");
376: $pkg_pc->add_property('Description', "fetch metadata about installed software packages");
1.35 espie 377: $configs{'pkg-config'} = $pkg_pc;
378: }
379:
1.11 espie 380: sub find_config
381: {
382: my ($p) = @_;
383: my $f = pathresolve($p);
1.64 jasper 384:
385: return get_config($f) if defined($f);
386:
1.62 jasper 387: say_error("Package $p was not found in the pkg-config search path");
1.61 jasper 388:
1.11 espie 389: return undef;
390: }
1.1 ckuethe 391:
1.11 espie 392: sub stringize
1.4 espie 393: {
1.11 espie 394: my $list = shift;
1.21 simon 395: my $sep = shift || ',';
1.4 espie 396:
1.11 espie 397: if (defined $list) {
1.21 simon 398: return join($sep, @$list)
1.11 espie 399: } else {
400: return '';
1.1 ckuethe 401: }
402: }
403:
404: #if the variable option is set, pull out the named variable
1.4 espie 405: sub do_variable
406: {
1.11 espie 407: my ($p, $v) = @_;
1.1 ckuethe 408:
1.13 espie 409: my $cfg = cache_find_config($p);
410:
411: if (defined $cfg) {
1.11 espie 412: my $value = $cfg->get_variable($v, $variables);
413: if (defined $value) {
1.13 espie 414: push(@vlist, $value);
1.11 espie 415: }
1.19 espie 416: return undef;
1.11 espie 417: }
1.19 espie 418: $rc = 1;
1.1 ckuethe 419: }
420:
1.30 jasper 421: #if the modversion or print-provides options are set,
422: #pull out the compiler flags
1.4 espie 423: sub do_modversion
424: {
1.11 espie 425: my ($p) = @_;
1.1 ckuethe 426:
1.13 espie 427: my $cfg = cache_find_config($p);
428:
429: if (defined $cfg) {
1.11 espie 430: my $value = $cfg->get_property('Version', $variables);
431: if (defined $value) {
1.60 jasper 432: if (defined($mode{printprovides})){
433: print "$p = " . stringize($value) . "\n";
1.30 jasper 434: return undef;
435: } else {
1.60 jasper 436: print stringize($value), "\n";
1.30 jasper 437: return undef;
438: }
1.11 espie 439: }
440: }
1.13 espie 441: $rc = 1;
1.1 ckuethe 442: }
443:
444: #if the cflags option is set, pull out the compiler flags
1.4 espie 445: sub do_cflags
446: {
1.14 espie 447: my $list = shift;
448:
1.11 espie 449: my $cflags = [];
1.1 ckuethe 450:
1.14 espie 451: foreach my $pkg (@$list) {
1.11 espie 452: my $l = $configs{$pkg}->get_property('Cflags', $variables);
453: push(@$cflags, @$l) if defined $l;
454: }
1.32 jasper 455: my $a = OpenBSD::PkgConfig->compress($cflags,
1.11 espie 456: sub {
457: local $_ = shift;
458: if (($mode{cflags} & 1) && /^-I/ ||
459: ($mode{cflags} & 2) && !/^-I/) {
460: return 1;
461: } else {
462: return 0;
1.4 espie 463: }
1.11 espie 464: });
1.32 jasper 465: if (defined($a) && defined($variables->{pc_sysrootdir})){
1.36 jasper 466: $a =~ s/[\w]?-I/$&$variables->{pc_sysrootdir}/g;
1.32 jasper 467: }
468:
469: return $a;
1.1 ckuethe 470: }
471:
472: #if the lib option is set, pull out the linker flags
1.4 espie 473: sub do_libs
474: {
1.14 espie 475: my $list = shift;
476:
1.11 espie 477: my $libs = [];
1.1 ckuethe 478:
1.68 jasper 479: # In static mode, we have to make sure we discover the libs in dependency
480: # order, not in search order. Ordering matters for static linking:
481: # Start with Libs (first our own, then dependencies), and append
482: # Libs.private (same order as for Libs).
1.14 espie 483: foreach my $pkg (@$list) {
1.11 espie 484: my $l = $configs{$pkg}->get_property('Libs', $variables);
485: push(@$libs, @$l) if defined $l;
1.67 jasper 486: if ($mode{static}) {
487: my $lp = $configs{$pkg}->get_property('Libs.private', $variables);
488: push(@$libs, @$lp) if defined $lp;
489: }
1.11 espie 490: }
1.66 jasper 491:
1.68 jasper 492: # Get the linker path directives (-L) and store it in $a.
493: # $b will be the actual libraries.
1.13 espie 494: my $a = OpenBSD::PkgConfig->compress($libs,
1.11 espie 495: sub {
496: local $_ = shift;
1.13 espie 497: if (($mode{libs} & 2) && /^-L/ ||
1.11 espie 498: ($mode{libs} & 4) && !/^-[lL]/) {
499: return 1;
500: } else {
501: return 0;
1.4 espie 502: }
1.11 espie 503: });
1.32 jasper 504:
505: if (defined($variables->{pc_sysrootdir})){
1.36 jasper 506: $a =~ s/[\w]?-[lL]/$&$variables->{pc_sysrootdir}/g;
1.32 jasper 507: }
508:
1.13 espie 509: if ($mode{libs} & 1) {
510: my $b = OpenBSD::PkgConfig->rcompress($libs,
1.66 jasper 511: sub { shift =~ m/^-l/; });
1.13 espie 512: return ($a, $b);
513: } else {
514: return $a;
515: }
1.1 ckuethe 516: }
517:
518: #list all packages
1.4 espie 519: sub do_list
520: {
1.1 ckuethe 521: my ($p, $x, $y, @files, $fname, $name);
1.20 espie 522: my $error = 0;
523:
1.33 jasper 524: foreach my $p (@PKGPATH) {
525: push(@files, <$p/*.pc>);
1.4 espie 526: }
1.1 ckuethe 527:
528: # Scan the lengths of the package names so I can make a format
529: # string to line the list up just like the real pkgconfig does.
530: $x = 0;
1.4 espie 531: foreach my $f (@files) {
532: $fname = basename($f, '.pc');
533: $y = length $fname;
1.1 ckuethe 534: $x = (($y > $x) ? $y : $x);
535: }
536: $x *= -1;
537:
1.4 espie 538: foreach my $f (@files) {
1.11 espie 539: my $cfg = get_config($f);
1.20 espie 540: if (!defined $cfg) {
1.62 jasper 541: say_warning("Problem reading file $f");
1.20 espie 542: $error = 1;
543: next;
544: }
1.4 espie 545: $fname = basename($f, '.pc');
1.33 jasper 546: printf("%${x}s %s - %s\n", $fname,
1.53 jasper 547: stringize($cfg->get_property('Name', $variables), ' '),
1.21 simon 548: stringize($cfg->get_property('Description', $variables),
549: ' '));
1.1 ckuethe 550: }
1.20 espie 551: return $error;
1.1 ckuethe 552: }
553:
1.4 espie 554: sub help
555: {
1.1 ckuethe 556: print <<EOF
557: Usage: $0 [options]
558: --debug - turn on debugging output
559: --help - this message
560: --usage - this message
561: --list-all - show all packages that $0 can find
1.8 ckuethe 562: --version - print version of pkgconfig
563: --errors-to-stdout - direct error messages to stdout rather than stderr
564: --print-errors - print error messages in case of error
1.34 jasper 565: --print-provides - print all the modules the given package provides
566: --print-requires - print all the modules the given package requires
567: --print-requires-private - print all the private modules the given package requires
1.66 jasper 568: --silence-errors - don\'t print error messages in case of error
1.1 ckuethe 569: --atleast-pkgconfig-version [version] - require a certain version of pkgconfig
570: --cflags package [versionspec] [package [versionspec]]
571: --cflags-only-I - only output -Iincludepath flags
572: --cflags-only-other - only output flags that are not -I
1.11 espie 573: --define-variable=NAME=VALUE - define variables
1.1 ckuethe 574: --libs package [versionspec] [package [versionspec]]
575: --libs-only-l - only output -llib flags
576: --libs-only-L - only output -Llibpath flags
577: --libs-only-other - only output flags that are not -l or -L
578: --exists package [versionspec] [package [versionspec]]
579: --uninstalled - allow for uninstalled versions to be used
1.8 ckuethe 580: --static - adjust output for static linking
581: --atleast-version [version] - require a certain version of a package
582: --modversion [package] - query the version of a package
583: --variable var package - return the definition of <var> in <package>
1.1 ckuethe 584: EOF
585: ;
1.22 simon 586: exit 0;
1.1 ckuethe 587: }
588:
589: # do we meet/beat the version the caller requested?
1.4 espie 590: sub self_version
591: {
592: my ($v) = @_;
593: my (@a, @b);
594:
1.66 jasper 595: @a = split(/\./, $v);
596: @b = split(/\./, $version);
1.1 ckuethe 597:
1.4 espie 598: if (($b[0] >= $a[0]) && ($b[1] >= $a[1])) {
1.14 espie 599: return 0;
1.1 ckuethe 600: } else {
1.14 espie 601: return 1;
602: }
603: }
604:
605: sub compare
606: {
607: my ($a, $b) = @_;
1.46 jasper 608: my ($full_a, $full_b) = ($a, $b);
609: my (@suffix_a, @suffix_b);
1.14 espie 610:
1.28 jasper 611: return 0 if ($a eq $b);
1.14 espie 612:
1.46 jasper 613: # is there a valid non-numeric suffix to deal with later?
1.58 jasper 614: # accepted are (in order): a(lpha) < b(eta) < rc < ' '.
1.46 jasper 615: # suffix[0] is the 'alpha' part, suffix[1] is the '1' part in 'alpha1'.
1.59 jasper 616: if ($a =~ s/(rc|beta|b|alpha|a)(\d+)$//) {
1.62 jasper 617: say_debug("valid suffix $1$2 found in $a$1$2.");
1.46 jasper 618: $suffix_a[0] = $1;
619: $suffix_a[1] = $2;
620: }
621:
1.59 jasper 622: if ($b =~ s/(rc|beta|b|alpha|a)(\d+)$//) {
1.62 jasper 623: say_debug("valid suffix $1$2 found in $b$1$2.");
1.46 jasper 624: $suffix_b[0] = $1;
625: $suffix_b[1] = $2;
626: }
627:
1.66 jasper 628: my @a = split(/\./, $a);
629: my @b = split(/\./, $b);
1.14 espie 630:
631: while (@a && @b) { #so long as both lists have something
1.46 jasper 632: if (!(@suffix_a || @suffix_b)) {
633: # simple comparison when no suffixes are in the game.
1.48 jasper 634: my $rc = compare_numeric($a[0], $b[0], 0);
635: return $rc if defined($rc);
1.46 jasper 636: } else {
637: # extended comparison.
1.56 jasper 638: if (((@a == 1) || (@b == 1)) &&
1.46 jasper 639: ($a[0] == $b[0])){
640: # one of the arrays has reached the last element,
641: # compare the suffix.
642:
643: # directly compare suffixes, provided both suffixes
644: # are present.
645: if (@suffix_a && @suffix_b) {
646: my $first_char = sub {
647: return substr(shift, 0, 1);
648: };
649:
650: # suffixes are equal, compare on numeric
651: if (&$first_char($suffix_a[0]) eq
652: &$first_char($suffix_b[0])) {
1.48 jasper 653: return compare_numeric($suffix_a[1], $suffix_b[1], 1);
1.46 jasper 654: }
655:
1.47 jasper 656: # rc beats beta beats alpha
1.46 jasper 657: if (&$first_char($suffix_a[0]) lt &$first_char($suffix_b[0])) {
1.62 jasper 658: say_debug("$full_a (installed) < $full_b (wanted)");
1.46 jasper 659: return -1;
660: } else {
1.62 jasper 661: say_debug("$full_a (installed) > $full_b (wanted)");
1.46 jasper 662: return 1;
663: }
664:
665: } else {
666: # one of either is lacking a suffix,
667: # thereby beating the other.
668: # e.g.: 1.02 > 1.02b1
669: if (@suffix_a) { # a is older
1.62 jasper 670: say_debug("$full_a (installed) < $full_b (wanted)");
1.55 jasper 671: return 1;
1.46 jasper 672: }
673:
674: if (@suffix_b) { # b is older
1.62 jasper 675: say_debug("$full_a (installed) > $full_b (wanted)");
1.55 jasper 676: return -1;
1.46 jasper 677: }
678: }
679: } else {
1.48 jasper 680: my $rc = compare_numeric($a[0], $b[0], 0);
681: return $rc if defined($rc);
1.46 jasper 682: }
683: }
1.14 espie 684: shift @a; shift @b;
685: }
686: return 1 if @a;
687: return -1 if @b;
688: return 0;
1.48 jasper 689: }
690:
691: # simple numeric comparison, with optional equality test.
692: sub compare_numeric
693: {
694: my ($x, $y, $eq) = @_;
695:
696: return 1 if $x > $y;
697: return -1 if $x < $y;
698: return 0 if (($x == $y) and ($eq == 1));
699: return undef;
1.1 ckuethe 700: }
701:
702: # got a package meeting the requested specific version?
1.4 espie 703: sub versionmatch
704: {
1.14 espie 705: my ($cfg, $op, $want) = @_;
1.33 jasper 706:
1.1 ckuethe 707: # can't possibly match if we can't find the file
1.11 espie 708: return 0 if !defined $cfg;
709:
1.14 espie 710: my $inst = stringize($cfg->get_property('Version', $variables));
1.11 espie 711:
1.1 ckuethe 712: # can't possibly match if we can't find the version string
1.14 espie 713: return 0 if $inst eq '';
1.1 ckuethe 714:
1.62 jasper 715: say_debug("comparing $want (wanted) to $inst (installed)");
1.14 espie 716: my $value = compare($inst, $want);
1.31 jasper 717: if ($op eq '>=') { return $value >= 0; }
718: elsif ($op eq '=') { return $value == 0; }
719: elsif ($op eq '!=') { return $value != 0; }
720: elsif ($op eq '<') { return $value < 0; }
721: elsif ($op eq '>') { return $value > 0; }
722: elsif ($op eq '<=') { return $value <= 0; }
1.13 espie 723: }
724:
725: sub mismatch
726: {
727: my ($p, $cfg, $op, $v) = @_;
1.53 jasper 728: my $name = stringize($cfg->get_property('Name'), ' ');
1.41 jasper 729: my $version = stringize($cfg->get_property('Version'));
730: my $url = stringize($cfg->get_property('URL'));
731:
1.62 jasper 732: say_warning("Requested '$p $op $v' but version of $name is $version");
733: say_warning("You may find new versions of $name at $url") if $url;
1.13 espie 734: }
735:
736: sub simplify_and_reverse
737: {
738: my $reqlist = shift;
739: my $dejavu = {};
740: my $result = [];
741:
742: for my $item (@$reqlist) {
743: if (!$dejavu->{$item}) {
744: unshift @$result, $item;
745: $dejavu->{$item} = 1;
746: }
747: }
748: return $result;
1.30 jasper 749: }
750:
751: # retrieve and print Requires(.private)
752: sub print_requires
753: {
754: my ($p) = @_;
755:
756: my $cfg = cache_find_config($p);
757:
758: if (defined($cfg)) {
759: my $value;
760:
761: if (defined($mode{printrequires})) {
762: $value = $cfg->get_property('Requires', $variables);
763: } elsif (defined($mode{printrequiresprivate})) {
764: $value = $cfg->get_property('Requires.private', $variables);
765: } else {
1.62 jasper 766: say_debug("Unknown mode for print_requires.");
1.30 jasper 767: return 1;
768: }
769:
770: if (defined($value)) {
771: print "$_\n" foreach (@$value);
772: return undef;
773: }
774: }
775:
776: $rc = 1;
1.35 espie 777: }
778:
779: sub beautify_list
780: {
781: return join(' ', map {"[$_]"} @_);
1.61 jasper 782: }
783:
1.62 jasper 784: sub say_debug
1.61 jasper 785: {
1.62 jasper 786: say_msg(shift) if $mode{debug};
1.61 jasper 787: }
788:
1.62 jasper 789: sub say_error
1.61 jasper 790: {
1.62 jasper 791: say_msg(shift) if $mode{printerr}
792: }
793:
794: sub say_warning
795: {
796: say_msg(shift);
797: }
798:
799: sub say_msg
800: {
1.63 jasper 801: my $str = shift;
1.62 jasper 802:
803: # If --errors-to-stdout was given, close STDERR (to be safe),
804: # then dup the output to STDOUT and delete the key from %mode so we
805: # won't keep checking it. STDERR stays dup'ed.
806: if ($mode{estdout}) {
807: close(STDERR);
808: open(STDERR, ">&STDOUT") or die "Can't dup STDOUT: $!";
809: delete($mode{estdout});
810: }
811:
812: print STDERR $str . "\n";
1.1 ckuethe 813: }
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