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 1768 (first block)
26 # perl.h line 4454 (second block),
27 my %BTD = map { $_ => 0 } qw(
39 PERL_MEM_LOG_TIMESTAMP
42 USE_ATTRIBUTES_FOR_PERLIO
48 DEBUG_LEAKING_SCALARS_FORK_DUMP
53 PERL_DEBUG_READONLY_OPS
60 PERL_OLD_COPY_ON_WRITE
63 PERL_USES_PL_PIDSTATUS
80 # These are all the keys that are
81 # 1. Always present in %Config (first block)
82 # 2. Reported by 'perl -V' (the rest)
109 git_uncommitted_changes
113 package revision version_patchlevel_string
115 osname osvers archname
118 hint useposix d_sigaction
119 useithreads usemultiplicity
120 useperlio d_sfio uselargefiles usesocks
121 use64bitint use64bitall uselongdouble
122 usemymalloc bincompat5005
127 ccversion gccversion gccosandvers
128 intsize longsize ptrsize doublesize byteorder
129 d_longlong longlongsize d_longdbl longdblsize
130 ivtype ivsize nvtype nvsize lseektype lseeksize
137 libc so useshrplib libperl
140 dlsrc dlext d_dlsymun ccdlflags
155 for ( [ lseektype
=> "Off_t" ],
156 [ myuname
=> "uname" ],
157 [ perl_patchlevel
=> "patch" ],
159 my ($official, $derived) = @
$_;
160 $conf->{config
}{$derived} ||= $conf->{config
}{$official};
161 $conf->{config
}{$official} ||= $conf->{config
}{$derived};
162 $conf->{derived
}{$derived} = delete $conf->{config
}{$derived};
165 if (exists $conf->{config
}{version_patchlevel_string
} &&
166 !exists $conf->{config
}{api_version
}) {
167 my $vps = $conf->{config
}{version_patchlevel_string
};
168 $vps =~ s{\b revision \s+ (\S+) }{}x and
169 $conf->{config
}{revision
} ||= $1;
171 $vps =~ s{\b version \s+ (\S+) }{}x and
172 $conf->{config
}{api_version
} ||= $1;
173 $vps =~ s{\b subversion \s+ (\S+) }{}x and
174 $conf->{config
}{subversion
} ||= $1;
175 $vps =~ s{\b patch \s+ (\S+) }{}x and
176 $conf->{config
}{perl_patchlevel
} ||= $1;
179 ($conf->{config
}{version_patchlevel_string
} ||= join " ",
180 map { ($_, $conf->{config
}{$_} ) }
181 grep { $conf->{config
}{$_} }
182 qw( api_version subversion perl_patchlevel )) =~ s/\bperl_//;
184 $conf->{config
}{perl_patchlevel
} ||= ""; # 0 is not a valid patchlevel
186 if ($conf->{config
}{perl_patchlevel
} =~ m{^git\w*-([^-]+)}i) {
187 $conf->{config
}{git_branch
} ||= $1;
188 $conf->{config
}{git_describe
} ||= $conf->{config
}{perl_patchlevel
};
197 for (split m/\n+/ => join "\n", @_) {
199 if (s/^Summary of my\s+(\S+)\s+\(\s*(.*?)\s*\)//) {
200 $config{"package"} = $1;
202 $rev =~ s/^ revision \s+ (\S+) \s*//x and $config{revision
} = $1;
203 $rev and $config{version_patchlevel_string
} = $rev;
204 my ($rel) = $config{package} =~ m{perl(\d)};
205 my ($vers, $subvers) = $rev =~ m{version\s+(\d+)\s+subversion\s+(\d+)};
206 defined $vers && defined $subvers && defined $rel and
207 $config{version
} = "$rel.$vers.$subvers";
211 if (s/^\s+(Snapshot of:)\s+(\S+)//) {
212 $config{git_commit_id_title
} = $1;
213 $config{git_commit_id
} = $2;
217 my %kv = m/\G,?\s*([^=]+)=('[^']+?'|\S+)/gc;
219 while (my ($k, $v) = each %kv) {
222 $v =~ m/^'(.*)'$/ and $v = $1;
228 my $build = { %empty_build };
229 $build->{osname
} = $config{osname
};
230 return _make_derived
({
241 my $conf = shift || myconfig
();
242 ref $conf eq "HASH" &&
243 exists $conf->{config
} && exists $conf->{build
} or return;
246 exists $conf->{config
}{$_} ?
( $_ => $conf->{config
}{$_} ) : () }
247 qw( archname osname osvers revision patchlevel subversion version
248 cc ccversion gccversion config_args inc_version_list
249 d_longdbl d_longlong use64bitall use64bitint useithreads
250 uselongdouble usemultiplicity usemymalloc useperlio useshrplib
251 doublesize intsize ivsize nvsize longdblsize longlongsize lseeksize
253 $info{$_}++ for grep { $conf->{build
}{options
}{$_} } keys %{$conf->{build
}{options
}};
260 eval { require Digest
::MD5
};
261 $@
and return "00000000000000000000000000000000";
263 my $conf = shift || summary
();
264 delete $conf->{config_args
};
265 return Digest
::MD5
::md5_hex
(join "\xFF" => map {
266 "$_=".(defined $conf->{$_} ?
$conf->{$_} : "\xFE");
273 my %args = ref $args eq "HASH" ?
%$args :
274 ref $args eq "ARRAY" ? @
$args : ();
276 my $build = { %empty_build };
278 # 5.14.0 and later provide all the information without shelling out
279 my $stamp = eval { Config
::compile_date
() };
280 if (defined $stamp) {
281 $stamp =~ s/^Compiled at //;
282 $build->{osname
} = $^O
;
283 $build->{stamp
} = $stamp;
284 $build->{patches
} = [ Config
::local_patches
() ];
285 $build->{options
}{$_} = 1 for Config
::bincompat_options
(),
286 Config
::non_bincompat_options
();
289 #y $pv = qx[$^X -e"sub Config::myconfig{};" -V];
291 $pv =~ s{.*?\n\n}{}s;
292 $pv =~ s{\n(?: \s+|\t\s*)}{ }g;
296 $pv =~ m{^\s+Built under (.*)}m and $build->{osname
} = $1;
297 $pv =~ m{^\s+Compiled at (.*)}m and $build->{stamp
} = $1;
298 $pv =~ m{^\s+Locally applied patches:\s+(.*)}m and $build->{patches
} = [ split m/\s+/, $1 ];
299 $pv =~ m{^\s+Compile-time options:\s+(.*)}m and map { $build->{options
}{$_} = 1 } split m/\s+/, $1;
302 my @KEYS = keys %ENV;
304 map { $_ => $ENV{$_} } grep m/^PERL/ => @KEYS;
306 map { $env{$_} = $ENV{$_} } grep m{$args{env}} => @KEYS;
308 my %config = map { $_ => $Config{$_} } @config_vars;
310 return _make_derived
({
312 environment
=> \
%env,
325 Config::Perl::V - Structured data retrieval of perl -V output
331 my $local_config = Config::Perl::V::myconfig ();
332 print $local_config->{config}{osname};
336 =head2 $conf = myconfig ()
338 This function will collect the data described in L<the hash structure> below,
339 and return that as a hash reference. It optionally accepts an option to
340 include more entries from %ENV. See L<environment> below.
342 Note that this will not work on uninstalled perls when called with
343 C<-I/path/to/uninstalled/perl/lib>, but it works when that path is in
344 C<$PERL5LIB> or in C<$PERL5OPT>, as paths passed using C<-I> are not
345 known when the C<-V> information is collected.
347 =head2 $conf = plv2hash ($text [, ...])
349 Convert a sole 'perl -V' text block, or list of lines, to a complete
350 myconfig hash. All unknown entries are defaulted.
352 =head2 $info = summary ([$conf])
354 Return an arbitrary selection of the information. If no C<$conf> is
355 given, C<myconfig ()> is used instead.
357 =head2 $md5 = signature ([$conf])
359 Return the MD5 of the info returned by C<summary ()> without the
360 C<config_args> entry.
362 If C<Digest::MD5> is not available, it return a string with only C<0>'s.
364 =head2 The hash structure
366 The returned hash consists of 4 parts:
372 This information is extracted from the second block that is emitted by
373 C<perl -V>, and usually looks something like
375 Characteristics of this binary (from libperl):
376 Compile-time options: DEBUGGING USE_64_BIT_INT USE_LARGE_FILES
377 Locally applied patches:
381 Compiled at Jun 13 2005 10:44:20
383 /usr/lib/perl5/5.8.7/i686-linux-64int
385 /usr/lib/perl5/site_perl/5.8.7/i686-linux-64int
386 /usr/lib/perl5/site_perl/5.8.7
387 /usr/lib/perl5/site_perl
392 Characteristics of this binary (from libperl):
393 Compile-time options: DEBUGGING MULTIPLICITY
394 PERL_DONT_CREATE_GVSV PERL_IMPLICIT_CONTEXT
395 PERL_MALLOC_WRAP PERL_TRACK_MEMPOOL
396 PERL_USE_SAFE_PUTENV USE_ITHREADS
397 USE_LARGE_FILES USE_PERLIO
400 Compiled at Jan 28 2009 15:26:59
402 This information is not available anywhere else, including C<%Config>,
403 but it is the information that is only known to the perl binary.
405 The extracted information is stored in 5 entries in the C<build> hash:
411 This is most likely the same as C<$Config{osname}>, and was the name
412 known when perl was built. It might be different if perl was cross-compiled.
414 The default for this field, if it cannot be extracted, is to copy
415 C<$Config{osname}>. The two may be differing in casing (OpenBSD vs openbsd).
419 This is the time string for which the perl binary was compiled. The default
424 This is a hash with all the known defines as keys. The value is either 0,
425 which means unknown or unset, or 1, which means defined.
429 As some variables are reported by a different name in the output of C<perl -V>
430 than their actual name in C<%Config>, I decided to leave the C<config> entry
431 as close to reality as possible, and put in the entries that might have been
432 guessed by the printed output in a separate block.
436 This is a list of optionally locally applied patches. Default is an empty list.
442 By default this hash is only filled with the environment variables
443 out of %ENV that start with C<PERL>, but you can pass the C<env> option
444 to myconfig to get more
446 my $conf = Config::Perl::V::myconfig ({ env => qr/^ORACLE/ });
447 my $conf = Config::Perl::V::myconfig ([ env => qr/^ORACLE/ ]);
451 This hash is filled with the variables that C<perl -V> fills its report
452 with, and it has the same variables that C<Config::myconfig> returns
457 This is the list of default @INC.
463 This module was written to be able to return the configuration for the
464 currently used perl as deeply as needed for the CPANTESTERS framework.
465 Up until now they used the output of myconfig as a single text blob,
466 and so it was missing the vital binary characteristics of the running
467 perl and the optional applied patches.
471 Please feedback what is wrong
475 * Implement retrieval functions/methods
482 H.Merijn Brand <h.m.brand@xs4all.nl>
484 =head1 COPYRIGHT AND LICENSE
486 Copyright (C) 2009-2013 H.Merijn Brand
488 This library is free software; you can redistribute it and/or modify
489 it under the same terms as Perl itself.