3 package Config
::Perl
::V
;
10 use vars
qw($VERSION @ISA @EXPORT_OK %EXPORT_TAGS);
13 @EXPORT_OK = qw( plv2hash summary myconfig signature );
15 all
=> [ @EXPORT_OK ],
16 sig
=> [ "signature" ],
19 # Characteristics of this binary (from libperl):
20 # Compile-time options: DEBUGGING PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
21 # USE_64_BIT_INT USE_LARGE_FILES USE_PERLIO
23 # The list are as the perl binary has stored it in PL_bincompat_options
25 # perl.c line 1643 S_Internals_V ()
26 # perl -ne'(/^S_Internals_V/../^}/)&&s/^\s+"( .*)"/$1/ and print' perl.c
27 # perl.h line 4566 PL_bincompat_options
28 # perl -ne'(/^\w.*PL_bincompat/../^\w}/)&&s/^\s+"( .*)"/$1/ and print' perl.h
29 my %BTD = map { $_ => 0 } qw(
39 PERL_HASH_FUNC_SIPHASH
42 PERL_HASH_FUNC_SUPERFAST
43 PERL_HASH_FUNC_MURMUR3
44 PERL_HASH_FUNC_ONE_AT_A_TIME
45 PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
46 PERL_HASH_FUNC_ONE_AT_A_TIME_OLD
54 PERL_MEM_LOG_TIMESTAMP
55 PERL_NEW_COPY_ON_WRITE
56 PERL_PERTURB_KEYS_DETERMINISTIC
57 PERL_PERTURB_KEYS_DISABLED
58 PERL_PERTURB_KEYS_RANDOM
60 PERL_RELOCATABLE_INCPUSH
64 USE_ATTRIBUTES_FOR_PERLIO
66 USE_HASH_SEED_EXPLICIT
73 DEBUG_LEAKING_SCALARS_FORK_DUMP
82 PERL_DEBUG_READONLY_COW
83 PERL_DEBUG_READONLY_OPS
91 PERL_OLD_COPY_ON_WRITE
95 PERL_USES_PL_PIDSTATUS
111 VMS_SHORTEN_LONG_SYMBOLS
112 VMS_SYMBOL_CASE_AS_IS
115 # These are all the keys that are
116 # 1. Always present in %Config - lib/Config.pm #87 tie %Config
117 # 2. Reported by 'perl -V' (the rest)
118 my @config_vars = qw(
144 git_uncommitted_changes
148 package revision version_patchlevel_string
150 osname osvers archname
153 hint useposix d_sigaction
154 useithreads usemultiplicity
155 useperlio d_sfio uselargefiles usesocks
156 use64bitint use64bitall uselongdouble
157 usemymalloc bincompat5005
162 ccversion gccversion gccosandvers
163 intsize longsize ptrsize doublesize byteorder
164 d_longlong longlongsize d_longdbl longdblsize
165 ivtype ivsize nvtype nvsize lseektype lseeksize
172 libc so useshrplib libperl
175 dlsrc dlext d_dlsymun ccdlflags
190 for ( [ lseektype
=> "Off_t" ],
191 [ myuname
=> "uname" ],
192 [ perl_patchlevel
=> "patch" ],
194 my ($official, $derived) = @
$_;
195 $conf->{config
}{$derived} ||= $conf->{config
}{$official};
196 $conf->{config
}{$official} ||= $conf->{config
}{$derived};
197 $conf->{derived
}{$derived} = delete $conf->{config
}{$derived};
200 if (exists $conf->{config
}{version_patchlevel_string
} &&
201 !exists $conf->{config
}{api_version
}) {
202 my $vps = $conf->{config
}{version_patchlevel_string
};
203 $vps =~ s{\b revision \s+ (\S+) }{}x and
204 $conf->{config
}{revision
} ||= $1;
206 $vps =~ s{\b version \s+ (\S+) }{}x and
207 $conf->{config
}{api_version
} ||= $1;
208 $vps =~ s{\b subversion \s+ (\S+) }{}x and
209 $conf->{config
}{subversion
} ||= $1;
210 $vps =~ s{\b patch \s+ (\S+) }{}x and
211 $conf->{config
}{perl_patchlevel
} ||= $1;
214 ($conf->{config
}{version_patchlevel_string
} ||= join " ",
215 map { ($_, $conf->{config
}{$_} ) }
216 grep { $conf->{config
}{$_} }
217 qw( api_version subversion perl_patchlevel )) =~ s/\bperl_//;
219 $conf->{config
}{perl_patchlevel
} ||= ""; # 0 is not a valid patchlevel
221 if ($conf->{config
}{perl_patchlevel
} =~ m{^git\w*-([^-]+)}i) {
222 $conf->{config
}{git_branch
} ||= $1;
223 $conf->{config
}{git_describe
} ||= $conf->{config
}{perl_patchlevel
};
232 for (split m/\n+/ => join "\n", @_) {
234 if (s/^Summary of my\s+(\S+)\s+\(\s*(.*?)\s*\)//) {
235 $config{"package"} = $1;
237 $rev =~ s/^ revision \s+ (\S+) \s*//x and $config{revision
} = $1;
238 $rev and $config{version_patchlevel_string
} = $rev;
239 my ($rel) = $config{package} =~ m{perl(\d)};
240 my ($vers, $subvers) = $rev =~ m{version\s+(\d+)\s+subversion\s+(\d+)};
241 defined $vers && defined $subvers && defined $rel and
242 $config{version
} = "$rel.$vers.$subvers";
246 if (s/^\s+(Snapshot of:)\s+(\S+)//) {
247 $config{git_commit_id_title
} = $1;
248 $config{git_commit_id
} = $2;
252 my %kv = m/\G,?\s*([^=]+)=('[^']+?'|\S+)/gc;
254 while (my ($k, $v) = each %kv) {
257 $v =~ m/^'(.*)'$/ and $v = $1;
263 my $build = { %empty_build };
264 $build->{osname
} = $config{osname
};
265 return _make_derived
({
276 my $conf = shift || myconfig
();
277 ref $conf eq "HASH" &&
278 exists $conf->{config
} && exists $conf->{build
} or return;
281 exists $conf->{config
}{$_} ?
( $_ => $conf->{config
}{$_} ) : () }
282 qw( archname osname osvers revision patchlevel subversion version
283 cc ccversion gccversion config_args inc_version_list
284 d_longdbl d_longlong use64bitall use64bitint useithreads
285 uselongdouble usemultiplicity usemymalloc useperlio useshrplib
286 doublesize intsize ivsize nvsize longdblsize longlongsize lseeksize
288 $info{$_}++ for grep { $conf->{build
}{options
}{$_} } keys %{$conf->{build
}{options
}};
295 eval { require Digest
::MD5
};
296 $@
and return "00000000000000000000000000000000";
298 my $conf = shift || summary
();
299 delete $conf->{config_args
};
300 return Digest
::MD5
::md5_hex
(join "\xFF" => map {
301 "$_=".(defined $conf->{$_} ?
$conf->{$_} : "\xFE");
308 my %args = ref $args eq "HASH" ?
%$args :
309 ref $args eq "ARRAY" ? @
$args : ();
311 my $build = { %empty_build };
313 # 5.14.0 and later provide all the information without shelling out
314 my $stamp = eval { Config
::compile_date
() };
315 if (defined $stamp) {
316 $stamp =~ s/^Compiled at //;
317 $build->{osname
} = $^O
;
318 $build->{stamp
} = $stamp;
319 $build->{patches
} = [ Config
::local_patches
() ];
320 $build->{options
}{$_} = 1 for Config
::bincompat_options
(),
321 Config
::non_bincompat_options
();
324 #y $pv = qx[$^X -e"sub Config::myconfig{};" -V];
326 $pv =~ s{.*?\n\n}{}s;
327 $pv =~ s{\n(?: \s+|\t\s*)}{\0}g;
331 $pv =~ m{^\s+Built under\s+(.*)}m
332 and $build->{osname
} = $1;
333 $pv =~ m{^\s+Compiled at\s+(.*)}m
334 and $build->{stamp
} = $1;
335 $pv =~ m{^\s+Locally applied patches:(?:\s+|\0)(.*)}m
336 and $build->{patches
} = [ split m/\0+/, $1 ];
337 $pv =~ m{^\s+Compile-time options:(?:\s+|\0)(.*)}m
338 and map { $build->{options
}{$_} = 1 } split m/\s+|\0/ => $1;
341 my @KEYS = keys %ENV;
343 map { $_ => $ENV{$_} } grep m/^PERL/ => @KEYS;
345 map { $env{$_} = $ENV{$_} } grep m{$args{env}} => @KEYS;
347 my %config = map { $_ => $Config{$_} } @config_vars;
349 return _make_derived
({
351 environment
=> \
%env,
364 Config::Perl::V - Structured data retrieval of perl -V output
370 my $local_config = Config::Perl::V::myconfig ();
371 print $local_config->{config}{osname};
375 =head2 $conf = myconfig ()
377 This function will collect the data described in L<the hash structure> below,
378 and return that as a hash reference. It optionally accepts an option to
379 include more entries from %ENV. See L<environment> below.
381 Note that this will not work on uninstalled perls when called with
382 C<-I/path/to/uninstalled/perl/lib>, but it works when that path is in
383 C<$PERL5LIB> or in C<$PERL5OPT>, as paths passed using C<-I> are not
384 known when the C<-V> information is collected.
386 =head2 $conf = plv2hash ($text [, ...])
388 Convert a sole 'perl -V' text block, or list of lines, to a complete
389 myconfig hash. All unknown entries are defaulted.
391 =head2 $info = summary ([$conf])
393 Return an arbitrary selection of the information. If no C<$conf> is
394 given, C<myconfig ()> is used instead.
396 =head2 $md5 = signature ([$conf])
398 Return the MD5 of the info returned by C<summary ()> without the
399 C<config_args> entry.
401 If C<Digest::MD5> is not available, it return a string with only C<0>'s.
403 =head2 The hash structure
405 The returned hash consists of 4 parts:
411 This information is extracted from the second block that is emitted by
412 C<perl -V>, and usually looks something like
414 Characteristics of this binary (from libperl):
415 Compile-time options: DEBUGGING USE_64_BIT_INT USE_LARGE_FILES
416 Locally applied patches:
420 Compiled at Jun 13 2005 10:44:20
422 /usr/lib/perl5/5.8.7/i686-linux-64int
424 /usr/lib/perl5/site_perl/5.8.7/i686-linux-64int
425 /usr/lib/perl5/site_perl/5.8.7
426 /usr/lib/perl5/site_perl
431 Characteristics of this binary (from libperl):
432 Compile-time options: DEBUGGING MULTIPLICITY
433 PERL_DONT_CREATE_GVSV PERL_IMPLICIT_CONTEXT
434 PERL_MALLOC_WRAP PERL_TRACK_MEMPOOL
435 PERL_USE_SAFE_PUTENV USE_ITHREADS
436 USE_LARGE_FILES USE_PERLIO
439 Compiled at Jan 28 2009 15:26:59
441 This information is not available anywhere else, including C<%Config>,
442 but it is the information that is only known to the perl binary.
444 The extracted information is stored in 5 entries in the C<build> hash:
450 This is most likely the same as C<$Config{osname}>, and was the name
451 known when perl was built. It might be different if perl was cross-compiled.
453 The default for this field, if it cannot be extracted, is to copy
454 C<$Config{osname}>. The two may be differing in casing (OpenBSD vs openbsd).
458 This is the time string for which the perl binary was compiled. The default
463 This is a hash with all the known defines as keys. The value is either 0,
464 which means unknown or unset, or 1, which means defined.
468 As some variables are reported by a different name in the output of C<perl -V>
469 than their actual name in C<%Config>, I decided to leave the C<config> entry
470 as close to reality as possible, and put in the entries that might have been
471 guessed by the printed output in a separate block.
475 This is a list of optionally locally applied patches. Default is an empty list.
481 By default this hash is only filled with the environment variables
482 out of %ENV that start with C<PERL>, but you can pass the C<env> option
483 to myconfig to get more
485 my $conf = Config::Perl::V::myconfig ({ env => qr/^ORACLE/ });
486 my $conf = Config::Perl::V::myconfig ([ env => qr/^ORACLE/ ]);
490 This hash is filled with the variables that C<perl -V> fills its report
491 with, and it has the same variables that C<Config::myconfig> returns
496 This is the list of default @INC.
502 This module was written to be able to return the configuration for the
503 currently used perl as deeply as needed for the CPANTESTERS framework.
504 Up until now they used the output of myconfig as a single text blob,
505 and so it was missing the vital binary characteristics of the running
506 perl and the optional applied patches.
510 Please feedback what is wrong
514 * Implement retrieval functions/methods
521 H.Merijn Brand <h.m.brand@xs4all.nl>
523 =head1 COPYRIGHT AND LICENSE
525 Copyright (C) 2009-2014 H.Merijn Brand
527 This library is free software; you can redistribute it and/or modify
528 it under the same terms as Perl itself.