3 package Config
::Perl
::V
;
12 # Characteristics of this binary (from libperl):
13 # Compile-time options: DEBUGGING PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
14 # USE_64_BIT_INT USE_LARGE_FILES USE_PERLIO
16 # The list are as the perl binary has stored it in PL_bincompat_options
18 # perl.c line 1768 (first block)
19 # perl.h line 4454 (second block),
20 my %BTD = map { $_ => 0 } qw(
30 PERL_MEM_LOG_TIMESTAMP
37 DEBUG_LEAKING_SCALARS_FORK_DUMP
42 PERL_DEBUG_READONLY_OPS
49 PERL_OLD_COPY_ON_WRITE
52 PERL_USES_PL_PIDSTATUS
69 # These are all the keys that are
70 # 1. Always present in %Config (first block)
71 # 2. Reported by 'perl -V' (the rest)
98 git_uncommitted_changes
102 package revision version_patchlevel_string
104 osname osvers archname
107 hint useposix d_sigaction
108 useithreads usemultiplicity
109 useperlio d_sfio uselargefiles usesocks
110 use64bitint use64bitall uselongdouble
111 usemymalloc bincompat5005
116 ccversion gccversion gccosandvers
117 intsize longsize ptrsize doublesize byteorder
118 d_longlong longlongsize d_longdbl longdblsize
119 ivtype ivsize nvtype nvsize lseektype lseeksize
126 libc so useshrplib libperl
129 dlsrc dlext d_dlsymun ccdlflags
144 for ( [ lseektype
=> "Off_t" ],
145 [ myuname
=> "uname" ],
146 [ perl_patchlevel
=> "patch" ],
148 my ($official, $derived) = @
$_;
149 $conf->{config
}{$derived} ||= $conf->{config
}{$official};
150 $conf->{config
}{$official} ||= $conf->{config
}{$derived};
151 $conf->{derived
}{$derived} = delete $conf->{config
}{$derived};
154 if (exists $conf->{config
}{version_patchlevel_string
} &&
155 !exists $conf->{config
}{api_version
}) {
156 my $vps = $conf->{config
}{version_patchlevel_string
};
157 $vps =~ s{\b revision \s+ (\S+) }{}x and
158 $conf->{config
}{revision
} ||= $1;
160 $vps =~ s{\b version \s+ (\S+) }{}x and
161 $conf->{config
}{api_version
} ||= $1;
162 $vps =~ s{\b subversion \s+ (\S+) }{}x and
163 $conf->{config
}{subversion
} ||= $1;
164 $vps =~ s{\b patch \s+ (\S+) }{}x and
165 $conf->{config
}{perl_patchlevel
} ||= $1;
168 ($conf->{config
}{version_patchlevel_string
} ||= join " ",
169 map { ($_, $conf->{config
}{$_} ) }
170 grep { $conf->{config
}{$_} }
171 qw( api_version subversion perl_patchlevel )) =~ s/\bperl_//;
173 $conf->{config
}{perl_patchlevel
} ||= ""; # 0 is not a valid patchlevel
175 if ($conf->{config
}{perl_patchlevel
} =~ m{^git\w*-([^-]+)}i) {
176 $conf->{config
}{git_branch
} ||= $1;
177 $conf->{config
}{git_describe
} ||= $conf->{config
}{perl_patchlevel
};
186 for (split m/\n+/ => join "\n", @_) {
188 if (s/^Summary of my\s+(\S+)\s+\(\s*(.*?)\s*\)//) {
189 $config{"package"} = $1;
191 $rev =~ s/^ revision \s+ (\S+) \s*//x and $config{revision
} = $1;
192 $rev and $config{version_patchlevel_string
} = $rev;
193 my ($rel) = $config{package} =~ m{perl(\d)};
194 my ($vers, $subvers) = $rev =~ m{version\s+(\d+)\s+subversion\s+(\d+)};
195 defined $vers && defined $subvers && defined $rel and
196 $config{version
} = "$rel.$vers.$subvers";
200 if (s/^\s+(Snapshot of:)\s+(\S+)//) {
201 $config{git_commit_id_title
} = $1;
202 $config{git_commit_id
} = $2;
206 my %kv = m/\G,?\s*([^=]+)=('[^']+?'|\S+)/gc;
208 while (my ($k, $v) = each %kv) {
211 $v =~ m/^'(.*)'$/ and $v = $1;
217 my $build = { %empty_build };
218 $build->{osname
} = $config{osname
};
219 return _make_derived
({
230 my $conf = shift || myconfig
();
231 ref $conf eq "HASH" &&
232 exists $conf->{config
} && exists $conf->{build
} or return;
235 exists $conf->{config
}{$_} ?
( $_ => $conf->{config
}{$_} ) : () }
236 qw( archname osname osvers revision patchlevel subversion version
237 cc ccversion gccversion config_args inc_version_list
238 d_longdbl d_longlong use64bitall use64bitint useithreads
239 uselongdouble usemultiplicity usemymalloc useperlio useshrplib
240 doublesize intsize ivsize nvsize longdblsize longlongsize lseeksize
242 $info{$_}++ for grep { $conf->{build
}{options
}{$_} } keys %{$conf->{build
}{options
}};
250 my %args = ref $args eq "HASH" ?
%$args :
251 ref $args eq "ARRAY" ? @
$args : ();
253 #y $pv = qx[$^X -e"sub Config::myconfig{};" -V];
255 $pv =~ s{.*?\n\n}{}s;
256 $pv =~ s{\n(?: \s+|\t\s*)}{ }g;
260 my $build = { %empty_build };
261 $pv =~ m{^\s+Built under (.*)}m and $build->{osname
} = $1;
262 $pv =~ m{^\s+Compiled at (.*)}m and $build->{stamp
} = $1;
263 $pv =~ m{^\s+Locally applied patches:\s+(.*)}m and $build->{patches
} = [ split m/\s+/, $1 ];
264 $pv =~ m{^\s+Compile-time options:\s+(.*)}m and map { $build->{options
}{$_} = 1 } split m/\s+/, $1;
266 my @KEYS = keys %ENV;
268 map { $_ => $ENV{$_} } grep m/^PERL/ => @KEYS;
270 map { $env{$_} = $ENV{$_} } grep m{$args{env}} => @KEYS;
272 my %config = map { $_ => $Config{$_} } @config_vars;
274 return _make_derived
({
276 environment
=> \
%env,
289 Config::Perl::V - Structured data retreival of perl -V output
295 my $local_config = Config::Perl::V::myconfig ();
296 print $local_config->{config}{osname};
300 =head2 $conf = myconfig ()
302 This function will collect the data decribed in L<the hash structure> below,
303 and return that as a hash reference. It optionally accepts an option to
304 include more entries from %ENV. See L<environment> below.
306 Note that this will not work on uninstalled perls when called with
307 C<-I/path/to/uninstalled/perl/lib>, but it works when that path is in
308 C<$PERL5LIB> or in C<$PERL5OPT>, as paths passed using C<-I> are not
309 known when the C<-V> information is collected.
311 =head2 $conf = plv2hash ($text [, ...])
313 Convert a sole 'perl -V' text block, or list of lines, to a complete
314 myconfig hash. All unknown entries are defaulted.
316 =head2 $info = summary ([$conf])
318 Return an arbitrary selection of the information. If no C<$conf> is
319 given, C<myconfig ()> is used instead.
321 =head2 The hash structure
323 The returned hash consists of 4 parts:
329 This information is extracted from the second block that is emitted by
330 C<perl -V>, and usually looks something like
332 Characteristics of this binary (from libperl):
333 Compile-time options: DEBUGGING USE_64_BIT_INT USE_LARGE_FILES
334 Locally applied patches:
338 Compiled at Jun 13 2005 10:44:20
340 /usr/lib/perl5/5.8.7/i686-linux-64int
342 /usr/lib/perl5/site_perl/5.8.7/i686-linux-64int
343 /usr/lib/perl5/site_perl/5.8.7
344 /usr/lib/perl5/site_perl
349 Characteristics of this binary (from libperl):
350 Compile-time options: DEBUGGING MULTIPLICITY
351 PERL_DONT_CREATE_GVSV PERL_IMPLICIT_CONTEXT
352 PERL_MALLOC_WRAP PERL_TRACK_MEMPOOL
353 PERL_USE_SAFE_PUTENV USE_ITHREADS
354 USE_LARGE_FILES USE_PERLIO
357 Compiled at Jan 28 2009 15:26:59
359 This information is not available anywhere else, including C<%Config>,
360 but it is the information that is only known to the perl binary.
362 The extracted information is stored in 5 entries in the C<build> hash:
368 This is most likely the same as C$Config{osname}>, and was the name
369 known when perl was built. It might be different if perl was cross-compiled.
371 The default for this field, if it cannot be extracted, is to copy C<$Config{osname}>.
375 This is the time string for which the perl binary was compiled. The default
380 This is a hash with all the known defines as keys. The value is either 0,
381 which means unknown or unset, or 1, which means defined.
385 As some verables are reported by a different name in the output of C<perl -V>
386 than their actual name in C<%Config>, I decided to leave the C<config> entry
387 as close to reality as possible, and put in the entries that might have been
388 guessed by the printed output in a seperate block.
392 This is a list of optionally locally applied patches. Default is an empty list.
398 By default this hash is only filled with the environment variables
399 out of %ENV that start with C<PERL>, but you can pass the C<env> option
400 to myconfig to get more
402 my $conf = Config::Perl::V::myconfig ({ env => qr/^ORACLE/ });
403 my $conf = Config::Perl::V::myconfig ([ env => qr/^ORACLE/ ]);
407 This hash is filled with the variables that C<perl -V> fills its report
408 with, and it has the same variables that C<Config::myconfig> returns
413 This is the list of default @INC.
419 This module was written to be able to return the configuration for the
420 currently used perl as deeply as needed for the CPANTESTERS framework.
421 Up until now they used the output of myconfig as a single text blob,
422 and so it was missing the vital binary characteristics of the running
423 perl and the optional applied patches.
427 Please feedback what is wrong
431 * Implement retrieval functions/methods
438 H.Merijn Brand <h.m.brand@xs4all.nl>
440 =head1 COPYRIGHT AND LICENSE
442 Copyright (C) 2009 H.Merijn Brand
444 This library is free software; you can redistribute it and/or modify
445 it under the same terms as Perl itself.