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 1661 S_Internals_V ()
26 # perl.h line 4664 (second block),
27 my %BTD = map { $_ => 0 } qw(
40 PERL_MEM_LOG_TIMESTAMP
42 PERL_RELOCATABLE_INCPUSH
46 USE_ATTRIBUTES_FOR_PERLIO
53 DEBUG_LEAKING_SCALARS_FORK_DUMP
61 PERL_DEBUG_READONLY_OPS
69 PERL_OLD_COPY_ON_WRITE
70 PERL_NEW_COPY_ON_WRITE
74 PERL_USES_PL_PIDSTATUS
90 VMS_SHORTEN_LONG_SYMBOLS
94 # These are all the keys that are
95 # 1. Always present in %Config (first block)
96 # 2. Reported by 'perl -V' (the rest)
123 git_uncommitted_changes
127 package revision version_patchlevel_string
129 osname osvers archname
132 hint useposix d_sigaction
133 useithreads usemultiplicity
134 useperlio d_sfio uselargefiles usesocks
135 use64bitint use64bitall uselongdouble
136 usemymalloc bincompat5005
141 ccversion gccversion gccosandvers
142 intsize longsize ptrsize doublesize byteorder
143 d_longlong longlongsize d_longdbl longdblsize
144 ivtype ivsize nvtype nvsize lseektype lseeksize
151 libc so useshrplib libperl
154 dlsrc dlext d_dlsymun ccdlflags
169 for ( [ lseektype
=> "Off_t" ],
170 [ myuname
=> "uname" ],
171 [ perl_patchlevel
=> "patch" ],
173 my ($official, $derived) = @
$_;
174 $conf->{config
}{$derived} ||= $conf->{config
}{$official};
175 $conf->{config
}{$official} ||= $conf->{config
}{$derived};
176 $conf->{derived
}{$derived} = delete $conf->{config
}{$derived};
179 if (exists $conf->{config
}{version_patchlevel_string
} &&
180 !exists $conf->{config
}{api_version
}) {
181 my $vps = $conf->{config
}{version_patchlevel_string
};
182 $vps =~ s{\b revision \s+ (\S+) }{}x and
183 $conf->{config
}{revision
} ||= $1;
185 $vps =~ s{\b version \s+ (\S+) }{}x and
186 $conf->{config
}{api_version
} ||= $1;
187 $vps =~ s{\b subversion \s+ (\S+) }{}x and
188 $conf->{config
}{subversion
} ||= $1;
189 $vps =~ s{\b patch \s+ (\S+) }{}x and
190 $conf->{config
}{perl_patchlevel
} ||= $1;
193 ($conf->{config
}{version_patchlevel_string
} ||= join " ",
194 map { ($_, $conf->{config
}{$_} ) }
195 grep { $conf->{config
}{$_} }
196 qw( api_version subversion perl_patchlevel )) =~ s/\bperl_//;
198 $conf->{config
}{perl_patchlevel
} ||= ""; # 0 is not a valid patchlevel
200 if ($conf->{config
}{perl_patchlevel
} =~ m{^git\w*-([^-]+)}i) {
201 $conf->{config
}{git_branch
} ||= $1;
202 $conf->{config
}{git_describe
} ||= $conf->{config
}{perl_patchlevel
};
211 for (split m/\n+/ => join "\n", @_) {
213 if (s/^Summary of my\s+(\S+)\s+\(\s*(.*?)\s*\)//) {
214 $config{"package"} = $1;
216 $rev =~ s/^ revision \s+ (\S+) \s*//x and $config{revision
} = $1;
217 $rev and $config{version_patchlevel_string
} = $rev;
218 my ($rel) = $config{package} =~ m{perl(\d)};
219 my ($vers, $subvers) = $rev =~ m{version\s+(\d+)\s+subversion\s+(\d+)};
220 defined $vers && defined $subvers && defined $rel and
221 $config{version
} = "$rel.$vers.$subvers";
225 if (s/^\s+(Snapshot of:)\s+(\S+)//) {
226 $config{git_commit_id_title
} = $1;
227 $config{git_commit_id
} = $2;
231 my %kv = m/\G,?\s*([^=]+)=('[^']+?'|\S+)/gc;
233 while (my ($k, $v) = each %kv) {
236 $v =~ m/^'(.*)'$/ and $v = $1;
242 my $build = { %empty_build };
243 $build->{osname
} = $config{osname
};
244 return _make_derived
({
255 my $conf = shift || myconfig
();
256 ref $conf eq "HASH" &&
257 exists $conf->{config
} && exists $conf->{build
} or return;
260 exists $conf->{config
}{$_} ?
( $_ => $conf->{config
}{$_} ) : () }
261 qw( archname osname osvers revision patchlevel subversion version
262 cc ccversion gccversion config_args inc_version_list
263 d_longdbl d_longlong use64bitall use64bitint useithreads
264 uselongdouble usemultiplicity usemymalloc useperlio useshrplib
265 doublesize intsize ivsize nvsize longdblsize longlongsize lseeksize
267 $info{$_}++ for grep { $conf->{build
}{options
}{$_} } keys %{$conf->{build
}{options
}};
274 eval { require Digest
::MD5
};
275 $@
and return "00000000000000000000000000000000";
277 my $conf = shift || summary
();
278 delete $conf->{config_args
};
279 return Digest
::MD5
::md5_hex
(join "\xFF" => map {
280 "$_=".(defined $conf->{$_} ?
$conf->{$_} : "\xFE");
287 my %args = ref $args eq "HASH" ?
%$args :
288 ref $args eq "ARRAY" ? @
$args : ();
290 my $build = { %empty_build };
292 # 5.14.0 and later provide all the information without shelling out
293 my $stamp = eval { Config
::compile_date
() };
294 if (defined $stamp) {
295 $stamp =~ s/^Compiled at //;
296 $build->{osname
} = $^O
;
297 $build->{stamp
} = $stamp;
298 $build->{patches
} = [ Config
::local_patches
() ];
299 $build->{options
}{$_} = 1 for Config
::bincompat_options
(),
300 Config
::non_bincompat_options
();
303 #y $pv = qx[$^X -e"sub Config::myconfig{};" -V];
305 $pv =~ s{.*?\n\n}{}s;
306 $pv =~ s{\n(?: \s+|\t\s*)}{\0}g;
310 $pv =~ m{^\s+Built under\s+(.*)}m
311 and $build->{osname
} = $1;
312 $pv =~ m{^\s+Compiled at\s+(.*)}m
313 and $build->{stamp
} = $1;
314 $pv =~ m{^\s+Locally applied patches:(?:\s+|\0)(.*)}m
315 and $build->{patches
} = [ split m/\0+/, $1 ];
316 $pv =~ m{^\s+Compile-time options:(?:\s+|\0)(.*)}m
317 and map { $build->{options
}{$_} = 1 } split m/\s+|\0/ => $1;
320 my @KEYS = keys %ENV;
322 map { $_ => $ENV{$_} } grep m/^PERL/ => @KEYS;
324 map { $env{$_} = $ENV{$_} } grep m{$args{env}} => @KEYS;
326 my %config = map { $_ => $Config{$_} } @config_vars;
328 return _make_derived
({
330 environment
=> \
%env,
343 Config::Perl::V - Structured data retrieval of perl -V output
349 my $local_config = Config::Perl::V::myconfig ();
350 print $local_config->{config}{osname};
354 =head2 $conf = myconfig ()
356 This function will collect the data described in L<the hash structure> below,
357 and return that as a hash reference. It optionally accepts an option to
358 include more entries from %ENV. See L<environment> below.
360 Note that this will not work on uninstalled perls when called with
361 C<-I/path/to/uninstalled/perl/lib>, but it works when that path is in
362 C<$PERL5LIB> or in C<$PERL5OPT>, as paths passed using C<-I> are not
363 known when the C<-V> information is collected.
365 =head2 $conf = plv2hash ($text [, ...])
367 Convert a sole 'perl -V' text block, or list of lines, to a complete
368 myconfig hash. All unknown entries are defaulted.
370 =head2 $info = summary ([$conf])
372 Return an arbitrary selection of the information. If no C<$conf> is
373 given, C<myconfig ()> is used instead.
375 =head2 $md5 = signature ([$conf])
377 Return the MD5 of the info returned by C<summary ()> without the
378 C<config_args> entry.
380 If C<Digest::MD5> is not available, it return a string with only C<0>'s.
382 =head2 The hash structure
384 The returned hash consists of 4 parts:
390 This information is extracted from the second block that is emitted by
391 C<perl -V>, and usually looks something like
393 Characteristics of this binary (from libperl):
394 Compile-time options: DEBUGGING USE_64_BIT_INT USE_LARGE_FILES
395 Locally applied patches:
399 Compiled at Jun 13 2005 10:44:20
401 /usr/lib/perl5/5.8.7/i686-linux-64int
403 /usr/lib/perl5/site_perl/5.8.7/i686-linux-64int
404 /usr/lib/perl5/site_perl/5.8.7
405 /usr/lib/perl5/site_perl
410 Characteristics of this binary (from libperl):
411 Compile-time options: DEBUGGING MULTIPLICITY
412 PERL_DONT_CREATE_GVSV PERL_IMPLICIT_CONTEXT
413 PERL_MALLOC_WRAP PERL_TRACK_MEMPOOL
414 PERL_USE_SAFE_PUTENV USE_ITHREADS
415 USE_LARGE_FILES USE_PERLIO
418 Compiled at Jan 28 2009 15:26:59
420 This information is not available anywhere else, including C<%Config>,
421 but it is the information that is only known to the perl binary.
423 The extracted information is stored in 5 entries in the C<build> hash:
429 This is most likely the same as C<$Config{osname}>, and was the name
430 known when perl was built. It might be different if perl was cross-compiled.
432 The default for this field, if it cannot be extracted, is to copy
433 C<$Config{osname}>. The two may be differing in casing (OpenBSD vs openbsd).
437 This is the time string for which the perl binary was compiled. The default
442 This is a hash with all the known defines as keys. The value is either 0,
443 which means unknown or unset, or 1, which means defined.
447 As some variables are reported by a different name in the output of C<perl -V>
448 than their actual name in C<%Config>, I decided to leave the C<config> entry
449 as close to reality as possible, and put in the entries that might have been
450 guessed by the printed output in a separate block.
454 This is a list of optionally locally applied patches. Default is an empty list.
460 By default this hash is only filled with the environment variables
461 out of %ENV that start with C<PERL>, but you can pass the C<env> option
462 to myconfig to get more
464 my $conf = Config::Perl::V::myconfig ({ env => qr/^ORACLE/ });
465 my $conf = Config::Perl::V::myconfig ([ env => qr/^ORACLE/ ]);
469 This hash is filled with the variables that C<perl -V> fills its report
470 with, and it has the same variables that C<Config::myconfig> returns
475 This is the list of default @INC.
481 This module was written to be able to return the configuration for the
482 currently used perl as deeply as needed for the CPANTESTERS framework.
483 Up until now they used the output of myconfig as a single text blob,
484 and so it was missing the vital binary characteristics of the running
485 perl and the optional applied patches.
489 Please feedback what is wrong
493 * Implement retrieval functions/methods
500 H.Merijn Brand <h.m.brand@xs4all.nl>
502 =head1 COPYRIGHT AND LICENSE
504 Copyright (C) 2009-2013 H.Merijn Brand
506 This library is free software; you can redistribute it and/or modify
507 it under the same terms as Perl itself.