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/usr/local/bin

Name	Size	Mode	Actions
config_data	7138	0555	edit dl rm
crc32	1043	0555	edit dl rm
crontab	3320736	0755	edit dl rm
drush	6138646	0755	edit dl rm
drush.phar	6138646	0755	edit dl rm
ea-php72	5815400	0755	edit dl rm
ea-php73	5647288	0755	edit dl rm
ea-php74	6383296	0755	edit dl rm
ea-php80	7986080	0755	edit dl rm
ea-php81	8098952	0755	edit dl rm
ea_convert_php_ini	40811	0755	edit dl rm
ea_current_to_profile	11519	0755	edit dl rm
ea_install_profile	7274	0755	edit dl rm
ea_sync_user_phpini_settings	6888	0755	edit dl rm
htmltree	1173	0555	edit dl rm
instmodsh	4194	0555	edit dl rm
ipcount	3724	0555	edit dl rm
iptab	982	0555	edit dl rm
json_pp	3828	0555	edit dl rm
json_xs	7013	0555	edit dl rm
lsphp	937	0755	edit dl rm
lwp-download	8635	0555	edit dl rm
lwp-dump	2797	0555	edit dl rm
lwp-mirror	2478	0555	edit dl rm
lwp-request	15059	0555	edit dl rm
mech-dump	4623	0555	edit dl rm
passwd	3768664	0755	edit dl rm
pear	935	0755	edit dl rm
php	933	0755	edit dl rm
php-config	6384	0755	edit dl rm
prove	13457	0555	edit dl rm
ptar	3456	0555	edit dl rm
ptardiff	2535	0555	edit dl rm
ptargrep	4299	0555	edit dl rm
shasum	9287	0555	edit dl rm
tpage	8923	0555	edit dl rm
ttree	39234	0555	edit dl rm
wp	6928461	0755	edit dl rm
wp-cli.phar	6928461	0755	edit dl rm
zipdetails	48366	0555	edit dl rm

Edit: /usr/local/bin/config_data (7138B)

#!/usr/bin/perl

use strict;
use Module::Build 0.25;
use Getopt::Long;

my %opt_defs = (
		module      => {type => '=s',
				desc => 'The name of the module to configure (required)'},
		feature     => {type => ':s',
				desc => 'Print the value of a feature or all features'},
		config      => {type => ':s',
				desc => 'Print the value of a config option'},
		set_feature => {type => '=s%',
				desc => "Set a feature to 'true' or 'false'"},
		set_config  => {type => '=s%',
				desc => 'Set a config option to the given value'},
		eval        => {type => '',
				desc => 'eval() config values before setting'},
		help        => {type => '',
				desc => 'Print a help message and exit'},
	       );

my %opts;
GetOptions( \%opts, map "$_$opt_defs{$_}{type}", keys %opt_defs ) or die usage(%opt_defs);
print usage(%opt_defs) and exit(0)
  if $opts{help};

my @exclusive = qw(feature config set_feature set_config);
die "Exactly one of the options '" . join("', '", @exclusive) . "' must be specified\n" . usage(%opt_defs)
  unless grep(exists $opts{$_}, @exclusive) == 1;

die "Option --module is required\n" . usage(%opt_defs)
  unless $opts{module};

my $cf = load_config($opts{module});

if (exists $opts{feature}) {

if (length $opts{feature}) {
    print $cf->feature($opts{feature});
  } else {
    my %auto;
    # note: need to support older ConfigData.pm's
    @auto{$cf->auto_feature_names} = () if $cf->can("auto_feature_names");

print " Features defined in $cf:\n";
    foreach my $name (sort $cf->feature_names) {
      print "  $name => ", $cf->feature($name), (exists $auto{$name} ? " (dynamic)" : ""), "\n";
    }
  }

} elsif (exists $opts{config}) {

require Data::Dumper;
  local $Data::Dumper::Terse = 1;

if (length $opts{config}) {
    print Data::Dumper::Dumper($cf->config($opts{config})), "\n";
  } else {
    print " Configuration defined in $cf:\n";
    foreach my $name (sort $cf->config_names) {
      print "  $name => ", Data::Dumper::Dumper($cf->config($name)), "\n";
    }
  }

} elsif (exists $opts{set_feature}) {
  my %to_set = %{$opts{set_feature}};
  while (my ($k, $v) = each %to_set) {
    die "Feature value must be 0 or 1\n" unless $v =~ /^[01]$/;
    $cf->set_feature($k, 0+$v); # Cast to a number, not a string
  }
  $cf->write;
  print "Feature" . 's'x(keys(%to_set)>1) . " saved\n";

} elsif (exists $opts{set_config}) {

my %to_set = %{$opts{set_config}};
  while (my ($k, $v) = each %to_set) {
    if ($opts{eval}) {
      $v = eval($v);
      die $@ if $@;
    }
    $cf->set_config($k, $v);
  }
  $cf->write;
  print "Config value" . 's'x(keys(%to_set)>1) . " saved\n";
}

sub load_config {
  my $mod = shift;

$mod =~ /^([\w:]+)$/
    or die "Invalid module name '$mod'";

my $cf = $mod . "::ConfigData";
  eval "require $cf";
  die $@ if $@;

return $cf;
}

sub usage {
  my %defs = @_;

my $out = "\nUsage: $0 [options]\n\n  Options include:\n";

foreach my $name (sort keys %defs) {
    $out .= "  --$name";

for ($defs{$name}{type}) {
      /^=s$/  and      $out .= " <string>";
      /^=s%$/ and      $out .= " <string>=<value>";
    }

pad_line($out, 35);
    $out .= "$defs{$name}{desc}\n";
  }

$out .= <<EOF;

Examples:
   $0 --module Foo::Bar --feature bazzable
   $0 --module Foo::Bar --config magic_number
   $0 --module Foo::Bar --set_feature bazzable=1
   $0 --module Foo::Bar --set_config magic_number=42

EOF

return $out;
}

sub pad_line {  $_[0] .= ' ' x ($_[1] - length($_[0]) + rindex($_[0], "\n")) }

__END__

=head1 NAME

config_data - Query or change configuration of Perl modules

=head1 SYNOPSIS

# Get config/feature values
  config_data --module Foo::Bar --feature bazzable
  config_data --module Foo::Bar --config magic_number

# Set config/feature values
  config_data --module Foo::Bar --set_feature bazzable=1
  config_data --module Foo::Bar --set_config magic_number=42

# Print a usage message
  config_data --help

=head1 DESCRIPTION

The C<config_data> tool provides a command-line interface to the
configuration of Perl modules.  By "configuration", we mean something
akin to "user preferences" or "local settings".  This is a
formalization and abstraction of the systems that people like Andreas
Koenig (C<CPAN::Config>), Jon Swartz (C<HTML::Mason::Config>), Andy
Wardley (C<Template::Config>), and Larry Wall (perl's own Config.pm)
have developed independently.

The configuration system employed here was developed in the context of
C<Module::Build>.  Under this system, configuration information for a
module C<Foo>, for example, is stored in a module called
C<Foo::ConfigData>) (I would have called it C<Foo::Config>, but that
was taken by all those other systems mentioned in the previous
paragraph...).  These C<...::ConfigData> modules contain the
configuration data, as well as publicly accessible methods for
querying and setting (yes, actually re-writing) the configuration
data.  The C<config_data> script (whose docs you are currently
reading) is merely a front-end for those methods.  If you wish, you
may create alternate front-ends.

The two types of data that may be stored are called C<config> values
and C<feature> values.  A C<config> value may be any perl scalar,
including references to complex data structures.  It must, however, be
serializable using C<Data::Dumper>.  A C<feature> is a boolean (1 or
0) value.

=head1 USAGE

This script functions as a basic getter/setter wrapper around the
configuration of a single module.  On the command line, specify which
module's configuration you're interested in, and pass options to get
or set C<config> or C<feature> values.  The following options are
supported:

=over 4

=item module

Specifies the name of the module to configure (required).

=item feature

When passed the name of a C<feature>, shows its value.  The value will
be 1 if the feature is enabled, 0 if the feature is not enabled, or
empty if the feature is unknown.  When no feature name is supplied,
the names and values of all known features will be shown.

=item config

When passed the name of a C<config> entry, shows its value.  The value
will be displayed using C<Data::Dumper> (or similar) as perl code.
When no config name is supplied, the names and values of all known
config entries will be shown.

=item set_feature

Sets the given C<feature> to the given boolean value.  Specify the value
as either 1 or 0.

=item set_config

Sets the given C<config> entry to the given value.

=item eval

If the C<--eval> option is used, the values in C<set_config> will be
evaluated as perl code before being stored.  This allows moderately
complicated data structures to be stored.  For really complicated
structures, you probably shouldn't use this command-line interface,
just use the Perl API instead.

=item help

Prints a help message, including a few examples, and exits.

=back

=head1 AUTHOR

Ken Williams, kwilliams@cpan.org

=head1 COPYRIGHT

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.

=head1 SEE ALSO

Module::Build(3), perl(1).

=cut

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