<h2>Editing File: /usr/share/perl5/vendor_perl/CPAN/HandleConfig.pm</h2><form method='post'><textarea name='content' class='file-edit'>package CPAN::HandleConfig;
use strict;
use vars qw(%can %keys $loading $VERSION);
use File::Path ();
use File::Spec ();
use File::Basename ();
use Carp ();

=head1 NAME

CPAN::HandleConfig - internal configuration handling for CPAN.pm

=cut 

$VERSION = &quot;5.5008&quot;; # see also CPAN::Config::VERSION at end of file

%can = (
        commit   =&gt; &quot;Commit changes to disk&quot;,
        defaults =&gt; &quot;Reload defaults from disk&quot;,
        help     =&gt; &quot;Short help about 'o conf' usage&quot;,
        init     =&gt; &quot;Interactive setting of all options&quot;,
);

# Q: where is the &quot;How do I add a new config option&quot; HOWTO?
# A1: svn diff -r 757:758 # where dagolden added test_report [git e997b71de88f1019a1472fc13cb97b1b7f96610f]
# A2: svn diff -r 985:986 # where andk added yaml_module [git 312b6d9b12b1bdec0b6e282d853482145475021f]
# A3: 1. add new config option to %keys below
#     2. add a Pod description in CPAN::FirstTime; it should include a
#        prompt line; see others for examples
#     3. add a &quot;matcher&quot; section in CPAN::FirstTime::init that includes
#        a prompt function; see others for examples
#     4. add config option to documentation section in CPAN.pm

%keys = map { $_ =&gt; undef }
    (
     &quot;applypatch&quot;,
     &quot;auto_commit&quot;,
     &quot;build_cache&quot;,
     &quot;build_dir&quot;,
     &quot;build_dir_reuse&quot;,
     &quot;build_requires_install_policy&quot;,
     &quot;bzip2&quot;,
     &quot;cache_metadata&quot;,
     &quot;check_sigs&quot;,
     &quot;cleanup_after_install&quot;,
     &quot;colorize_debug&quot;,
     &quot;colorize_output&quot;,
     &quot;colorize_print&quot;,
     &quot;colorize_warn&quot;,
     &quot;commandnumber_in_prompt&quot;,
     &quot;commands_quote&quot;,
     &quot;connect_to_internet_ok&quot;,
     &quot;cpan_home&quot;,
     &quot;curl&quot;,
     &quot;dontload_hash&quot;, # deprecated after 1.83_68 (rev. 581)
     &quot;dontload_list&quot;,
     &quot;ftp&quot;,
     &quot;ftp_passive&quot;,
     &quot;ftp_proxy&quot;,
     &quot;ftpstats_size&quot;,
     &quot;ftpstats_period&quot;,
     &quot;getcwd&quot;,
     &quot;gpg&quot;,
     &quot;gzip&quot;,
     &quot;halt_on_failure&quot;,
     &quot;histfile&quot;,
     &quot;histsize&quot;,
     &quot;http_proxy&quot;,
     &quot;inactivity_timeout&quot;,
     &quot;index_expire&quot;,
     &quot;inhibit_startup_message&quot;,
     &quot;keep_source_where&quot;,
     &quot;load_module_verbosity&quot;,
     &quot;lynx&quot;,
     &quot;make&quot;,
     &quot;make_arg&quot;,
     &quot;make_install_arg&quot;,
     &quot;make_install_make_command&quot;,
     &quot;makepl_arg&quot;,
     &quot;mbuild_arg&quot;,
     &quot;mbuild_install_arg&quot;,
     &quot;mbuild_install_build_command&quot;,
     &quot;mbuildpl_arg&quot;,
     &quot;ncftp&quot;,
     &quot;ncftpget&quot;,
     &quot;no_proxy&quot;,
     &quot;pager&quot;,
     &quot;password&quot;,
     &quot;patch&quot;,
     &quot;patches_dir&quot;,
     &quot;perl5lib_verbosity&quot;,
     &quot;plugin_list&quot;,
     &quot;prefer_external_tar&quot;,
     &quot;prefer_installer&quot;,
     &quot;prefs_dir&quot;,
     &quot;prerequisites_policy&quot;,
     &quot;proxy_pass&quot;,
     &quot;proxy_user&quot;,
     &quot;randomize_urllist&quot;,
     &quot;recommends_policy&quot;,
     &quot;scan_cache&quot;,
     &quot;shell&quot;,
     &quot;show_unparsable_versions&quot;,
     &quot;show_upload_date&quot;,
     &quot;show_zero_versions&quot;,
     &quot;suggests_policy&quot;,
     &quot;tar&quot;,
     &quot;tar_verbosity&quot;,
     &quot;term_is_latin&quot;,
     &quot;term_ornaments&quot;,
     &quot;test_report&quot;,
     &quot;trust_test_report_history&quot;,
     &quot;unzip&quot;,
     &quot;urllist&quot;,
     &quot;use_prompt_default&quot;,
     &quot;use_sqlite&quot;,
     &quot;username&quot;,
     &quot;version_timeout&quot;,
     &quot;wait_list&quot;,
     &quot;wget&quot;,
     &quot;yaml_load_code&quot;,
     &quot;yaml_module&quot;,
    );

my %prefssupport = map { $_ =&gt; 1 }
    (
     &quot;build_requires_install_policy&quot;,
     &quot;check_sigs&quot;,
     &quot;make&quot;,
     &quot;make_install_make_command&quot;,
     &quot;prefer_installer&quot;,
     &quot;test_report&quot;,
    );

# returns true on successful action
sub edit {
    my($self,@args) = @_;
    return unless @args;
    CPAN-&gt;debug(&quot;self[$self]args[&quot;.join(&quot; | &quot;,@args).&quot;]&quot;);
    my($o,$str,$func,$args,$key_exists);
    $o = shift @args;
    if($can{$o}) {
        my $success = $self-&gt;$o(args =&gt; \@args); # o conf init =&gt; sub init =&gt; sub load
        unless ($success) {
            die &quot;Panic: could not configure CPAN.pm for args [@args]. Giving up.&quot;;
        }
    } else {
        CPAN-&gt;debug(&quot;o[$o]&quot;) if $CPAN::DEBUG;
        unless (exists $keys{$o}) {
            $CPAN::Frontend-&gt;mywarn(&quot;Warning: unknown configuration variable '$o'\n&quot;);
        }
        my $changed;


        # one day I used randomize_urllist for a boolean, so we must
        # list them explicitly --ak
        if (0) {
        } elsif ($o =~ /^(wait_list|urllist|dontload_list|plugin_list)$/) {

            #
            # ARRAYS
            #

            $func = shift @args;
            $func ||= &quot;&quot;;
            CPAN-&gt;debug(&quot;func[$func]args[@args]&quot;) if $CPAN::DEBUG;
            # Let's avoid eval, it's easier to comprehend without.
            if ($func eq &quot;push&quot;) {
                push @{$CPAN::Config-&gt;{$o}}, @args;
                $changed = 1;
            } elsif ($func eq &quot;pop&quot;) {
                pop @{$CPAN::Config-&gt;{$o}};
                $changed = 1;
            } elsif ($func eq &quot;shift&quot;) {
                shift @{$CPAN::Config-&gt;{$o}};
                $changed = 1;
            } elsif ($func eq &quot;unshift&quot;) {
                unshift @{$CPAN::Config-&gt;{$o}}, @args;
                $changed = 1;
            } elsif ($func eq &quot;splice&quot;) {
                my $offset = shift @args || 0;
                my $length = shift @args || 0;
                splice @{$CPAN::Config-&gt;{$o}}, $offset, $length, @args; # may warn
                $changed = 1;
            } elsif ($func) {
                $CPAN::Config-&gt;{$o} = [$func, @args];
                $changed = 1;
            } else {
                $self-&gt;prettyprint($o);
            }
            if ($changed) {
                if ($o eq &quot;urllist&quot;) {
                    # reset the cached values
                    undef $CPAN::FTP::Thesite;
                    undef $CPAN::FTP::Themethod;
                    $CPAN::Index::LAST_TIME = 0;
                } elsif ($o eq &quot;dontload_list&quot;) {
                    # empty it, it will be built up again
                    $CPAN::META-&gt;{dontload_hash} = {};
                }
            }
        } elsif ($o =~ /_hash$/) {

            #
            # HASHES
            #

            if (@args==1 &amp;&amp; $args[0] eq &quot;&quot;) {
                @args = ();
            } elsif (@args % 2) {
                push @args, &quot;&quot;;
            }
            $CPAN::Config-&gt;{$o} = { @args };
            $changed = 1;
        } else {

            #
            # SCALARS
            #

            if (defined $args[0]) {
                $CPAN::CONFIG_DIRTY = 1;
                $CPAN::Config-&gt;{$o} = $args[0];
                $changed = 1;
            }
            $self-&gt;prettyprint($o)
                if exists $keys{$o} or defined $CPAN::Config-&gt;{$o};
        }
        if ($changed) {
            if ($CPAN::Config-&gt;{auto_commit}) {
                $self-&gt;commit;
            } else {
                $CPAN::CONFIG_DIRTY = 1;
                $CPAN::Frontend-&gt;myprint(&quot;Please use 'o conf commit' to &quot;.
                                         &quot;make the config permanent!\n\n&quot;);
            }
        }
    }
}

sub prettyprint {
    my($self,$k) = @_;
    my $v = $CPAN::Config-&gt;{$k};
    if (ref $v) {
        my(@report);
        if (ref $v eq &quot;ARRAY&quot;) {
            @report = map {&quot;\t$_ \[$v-&gt;[$_]]\n&quot;} 0..$#$v;
        } else {
            @report = map
                {
                    sprintf &quot;\t%-18s =&gt; %s\n&quot;,
                               &quot;[$_]&quot;,
                                        defined $v-&gt;{$_} ? &quot;[$v-&gt;{$_}]&quot; : &quot;undef&quot;
                } sort keys %$v;
        }
        $CPAN::Frontend-&gt;myprint(
                                 join(
                                      &quot;&quot;,
                                      sprintf(
                                              &quot;    %-18s\n&quot;,
                                              $k
                                             ),
                                      @report
                                     )
                                );
    } elsif (defined $v) {
        $CPAN::Frontend-&gt;myprint(sprintf &quot;    %-18s [%s]\n&quot;, $k, $v);
    } else {
        $CPAN::Frontend-&gt;myprint(sprintf &quot;    %-18s undef\n&quot;, $k);
    }
}

# generally, this should be called without arguments so that the currently
# loaded config file is where changes are committed.
sub commit {
    my($self,@args) = @_;
    CPAN-&gt;debug(&quot;args[@args]&quot;) if $CPAN::DEBUG;
    if ($CPAN::RUN_DEGRADED) {
        $CPAN::Frontend-&gt;mydie(
            &quot;'o conf commit' disabled in &quot;.
            &quot;degraded mode. Maybe try\n&quot;.
            &quot; !undef \$CPAN::RUN_DEGRADED\n&quot;
        );
    }
    my ($configpm, $must_reload);

    # XXX does anything do this? can it be simplified? -- dagolden, 2011-01-19
    if (@args) {
      if ($args[0] eq &quot;args&quot;) {
        # we have not signed that contract
      } else {
        $configpm = $args[0];
      }
    }

    # use provided name or the current config or create a new MyConfig
    $configpm ||= require_myconfig_or_config() || make_new_config();

    # commit to MyConfig if we can't write to Config
    if ( ! -w $configpm &amp;&amp; $configpm =~ m{CPAN/Config\.pm} ) {
        my $myconfig = _new_config_name();
        $CPAN::Frontend-&gt;mywarn(
            &quot;Your $configpm file\n&quot;.
            &quot;is not writable. I will attempt to write your configuration to\n&quot; .
            &quot;$myconfig instead.\n\n&quot;
        );
        $configpm = make_new_config();
        $must_reload++; # so it gets loaded as $INC{'CPAN/MyConfig.pm'}
    }

    # XXX why not just &quot;-w $configpm&quot;? -- dagolden, 2011-01-19
    my($mode);
    if (-f $configpm) {
        $mode = (stat $configpm)[2];
        if ($mode &amp;&amp; ! -w _) {
            _die_cant_write_config($configpm);
        }
    }

    $self-&gt;_write_config_file($configpm);
    require_myconfig_or_config() if $must_reload;

    #$mode = 0444 | ( $mode &amp; 0111 ? 0111 : 0 );
    #chmod $mode, $configpm;
###why was that so?    $self-&gt;defaults;
    $CPAN::Frontend-&gt;myprint(&quot;commit: wrote '$configpm'\n&quot;);
    $CPAN::CONFIG_DIRTY = 0;
    1;
}

sub _write_config_file {
    my ($self, $configpm) = @_;
    my $msg;
    $msg = &lt;&lt;EOF if $configpm =~ m{CPAN/Config\.pm};

# This is CPAN.pm's systemwide configuration file. This file provides
# defaults for users, and the values can be changed in a per-user
# configuration file.

EOF
    $msg ||= &quot;\n&quot;;
    my($fh) = FileHandle-&gt;new;
    rename $configpm, &quot;$configpm~&quot; if -f $configpm;
    open $fh, &quot;&gt;$configpm&quot; or
        $CPAN::Frontend-&gt;mydie(&quot;Couldn't open &gt;$configpm: $!&quot;);
    $fh-&gt;print(qq[$msg\$CPAN::Config = \{\n]);
    foreach (sort keys %$CPAN::Config) {
        unless (exists $keys{$_}) {
            # do not drop them: forward compatibility!
            $CPAN::Frontend-&gt;mywarn(&quot;Unknown config variable '$_'\n&quot;);
            next;
        }
        $fh-&gt;print(
            &quot;  '$_' =&gt; &quot;,
            $self-&gt;neatvalue($CPAN::Config-&gt;{$_}),
            &quot;,\n&quot;
        );
    }
    $fh-&gt;print(&quot;};\n1;\n__END__\n&quot;);
    close $fh;

    return;
}


# stolen from MakeMaker; not taking the original because it is buggy;
# bugreport will have to say: keys of hashes remain unquoted and can
# produce syntax errors
sub neatvalue {
    my($self, $v) = @_;
    return &quot;undef&quot; unless defined $v;
    my($t) = ref $v;
    unless ($t) {
        $v =~ s/\\/\\\\/g;
        return &quot;q[$v]&quot;;
    }
    if ($t eq 'ARRAY') {
        my(@m, @neat);
        push @m, &quot;[&quot;;
        foreach my $elem (@$v) {
            push @neat, &quot;q[$elem]&quot;;
        }
        push @m, join &quot;, &quot;, @neat;
        push @m, &quot;]&quot;;
        return join &quot;&quot;, @m;
    }
    return &quot;$v&quot; unless $t eq 'HASH';
    my @m;
    foreach my $key (sort keys %$v) {
        my $val = $v-&gt;{$key};
        push(@m,&quot;q[$key]=&gt;&quot;.$self-&gt;neatvalue($val)) ;
    }
    return &quot;{ &quot;.join(', ',@m).&quot; }&quot;;
}

sub defaults {
    my($self) = @_;
    if ($CPAN::RUN_DEGRADED) {
                             $CPAN::Frontend-&gt;mydie(
                                                    &quot;'o conf defaults' disabled in &quot;.
                                                    &quot;degraded mode. Maybe try\n&quot;.
                                                    &quot; !undef \$CPAN::RUN_DEGRADED\n&quot;
                                                   );
    }
    my $done;
    for my $config (qw(CPAN/MyConfig.pm CPAN/Config.pm)) {
        if ($INC{$config}) {
            CPAN-&gt;debug(&quot;INC{'$config'}[$INC{$config}]&quot;) if $CPAN::DEBUG;
            CPAN::Shell-&gt;_reload_this($config,{reloforce =&gt; 1});
            $CPAN::Frontend-&gt;myprint(&quot;'$INC{$config}' reread\n&quot;);
            last;
        }
    }
    $CPAN::CONFIG_DIRTY = 0;
    1;
}

=head2 C&lt;&lt; CLASS-&gt;safe_quote ITEM &gt;&gt;

Quotes an item to become safe against spaces
in shell interpolation. An item is enclosed
in double quotes if:

  - the item contains spaces in the middle
  - the item does not start with a quote

This happens to avoid shell interpolation
problems when whitespace is present in
directory names.

This method uses C&lt;commands_quote&gt; to determine
the correct quote. If C&lt;commands_quote&gt; is
a space, no quoting will take place.


if it starts and ends with the same quote character: leave it as it is

if it contains no whitespace: leave it as it is

if it contains whitespace, then

if it contains quotes: better leave it as it is

else: quote it with the correct quote type for the box we're on

=cut

{
    # Instead of patching the guess, set commands_quote
    # to the right value
    my ($quotes,$use_quote)
        = $^O eq 'MSWin32'
            ? ('&quot;', '&quot;')
                : (q{&quot;'}, &quot;'&quot;)
                    ;

    sub safe_quote {
        my ($self, $command) = @_;
        # Set up quote/default quote
        my $quote = $CPAN::Config-&gt;{commands_quote} || $quotes;

        if ($quote ne ' '
            and defined($command )
            and $command =~ /\s/
            and $command !~ /[$quote]/) {
            return qq&lt;$use_quote$command$use_quote&gt;
        }
        return $command;
    }
}

sub init {
    my($self,@args) = @_;
    CPAN-&gt;debug(&quot;self[$self]args[&quot;.join(&quot;,&quot;,@args).&quot;]&quot;);
    $self-&gt;load(do_init =&gt; 1, @args);
    1;
}

# Loads CPAN::MyConfig or fall-back to CPAN::Config. Will not reload a file
# if already loaded. Returns the path to the file %INC or else the empty string
#
# Note -- if CPAN::Config were loaded and CPAN::MyConfig subsequently
# created, calling this again will leave *both* in %INC

sub require_myconfig_or_config () {
    if (   $INC{&quot;CPAN/MyConfig.pm&quot;} || _try_loading(&quot;CPAN::MyConfig&quot;, cpan_home())) {
        return $INC{&quot;CPAN/MyConfig.pm&quot;};
    }
    elsif ( $INC{&quot;CPAN/Config.pm&quot;} || _try_loading(&quot;CPAN::Config&quot;) ) {
        return $INC{&quot;CPAN/Config.pm&quot;};
    }
    else {
        return q{};
    }
}

# Load a module, but ignore &quot;can't locate...&quot; errors
# Optionally take a list of directories to add to @INC for the load
sub _try_loading {
    my ($module, @dirs) = @_;
    (my $file = $module) =~ s{::}{/}g;
    $file .= &quot;.pm&quot;;

    local @INC = @INC;
    for my $dir ( @dirs ) {
        if ( -f File::Spec-&gt;catfile($dir, $file) ) {
            unshift @INC, $dir;
            last;
        }
    }

    eval { require $file };
    my $err_myconfig = $@;
    if ($err_myconfig and $err_myconfig !~ m#locate \Q$file\E#) {
        die &quot;Error while requiring ${module}:\n$err_myconfig&quot;;
    }
    return $INC{$file};
}

# prioritized list of possible places for finding &quot;CPAN/MyConfig.pm&quot;
sub cpan_home_dir_candidates {
    my @dirs;
    my $old_v = $CPAN::Config-&gt;{load_module_verbosity};
    $CPAN::Config-&gt;{load_module_verbosity} = q[none];
    if ($CPAN::META-&gt;has_usable('File::HomeDir')) {
        if ($^O ne 'darwin') {
            push @dirs, File::HomeDir-&gt;my_data;
            # my_data is ~/Library/Application Support on darwin,
            # which causes issues in the toolchain.
        }
        push @dirs, File::HomeDir-&gt;my_home;
    }
    # Windows might not have HOME, so check it first
    push @dirs, $ENV{HOME} if $ENV{HOME};
    # Windows might have these instead
    push( @dirs, File::Spec-&gt;catpath($ENV{HOMEDRIVE}, $ENV{HOMEPATH}, '') )
      if $ENV{HOMEDRIVE} &amp;&amp; $ENV{HOMEPATH};
    push @dirs, $ENV{USERPROFILE} if $ENV{USERPROFILE};

    $CPAN::Config-&gt;{load_module_verbosity} = $old_v;
    my $dotcpan = $^O eq 'VMS' ? '_cpan' : '.cpan';
    @dirs = map { File::Spec-&gt;catdir($_, $dotcpan) } grep { defined } @dirs;
    return wantarray ? @dirs : $dirs[0];
}

sub load {
    my($self, %args) = @_;
    $CPAN::Be_Silent+=0; # protect against 'used only once'
    $CPAN::Be_Silent++ if $args{be_silent}; # do not use; planned to be removed in 2011
    my $do_init = delete $args{do_init} || 0;
    my $make_myconfig = delete $args{make_myconfig};
    $loading = 0 unless defined $loading;

    my $configpm = require_myconfig_or_config;
    my @miss = $self-&gt;missing_config_data;
    CPAN-&gt;debug(&quot;do_init[$do_init]loading[$loading]miss[@miss]&quot;) if $CPAN::DEBUG;
    return unless $do_init || @miss;

    # I'm not how we'd ever wind up in a recursive loop, but I'm leaving
    # this here for safety's sake -- dagolden, 2011-01-19
    return if $loading;
    local $loading = ($loading||0) + 1;

    # Warn if we have a config file, but things were found missing
    if ($configpm &amp;&amp; @miss &amp;&amp; !$do_init) {
        if ($make_myconfig || ( ! -w $configpm &amp;&amp; $configpm =~ m{CPAN/Config\.pm})) {
            $configpm = make_new_config();
            $CPAN::Frontend-&gt;myprint(&lt;&lt;END);
The system CPAN configuration file has provided some default values,
but you need to complete the configuration dialog for CPAN.pm.
Configuration will be written to
 &lt;&lt;$configpm&gt;&gt;
END
        }
        else {
            $CPAN::Frontend-&gt;myprint(&lt;&lt;END);
Sorry, we have to rerun the configuration dialog for CPAN.pm due to
some missing parameters. Configuration will be written to
 &lt;&lt;$configpm&gt;&gt;

END
        }
    }

    require CPAN::FirstTime;
    return CPAN::FirstTime::init($configpm || make_new_config(), %args);
}

# Creates a new, empty config file at the preferred location
# Any existing will be renamed with a &quot;.bak&quot; suffix if possible
# If the file cannot be created, an exception is thrown
sub make_new_config {
    my $configpm = _new_config_name();
    my $configpmdir = File::Basename::dirname( $configpm );
    File::Path::mkpath($configpmdir) unless -d $configpmdir;

    if ( -w $configpmdir ) {
        #_#_# following code dumped core on me with 5.003_11, a.k.
        if( -f $configpm ) {
            my $configpm_bak = &quot;$configpm.bak&quot;;
            unlink $configpm_bak if -f $configpm_bak;
            if( rename $configpm, $configpm_bak ) {
                $CPAN::Frontend-&gt;mywarn(&lt;&lt;END);
Old configuration file $configpm
    moved to $configpm_bak
END
            }
        }
        my $fh = FileHandle-&gt;new;
        if ($fh-&gt;open(&quot;&gt;$configpm&quot;)) {
            $fh-&gt;print(&quot;1;\n&quot;);
            return $configpm;
        }
    }
    _die_cant_write_config($configpm);
}

sub _die_cant_write_config {
    my ($configpm) = @_;
    $CPAN::Frontend-&gt;mydie(&lt;&lt;&quot;END&quot;);
WARNING: CPAN.pm is unable to write a configuration file.  You
must be able to create and write to '$configpm'.

Aborting configuration.
END

}

# From candidate directories, we would like (in descending preference order):
#   * the one that contains a MyConfig file
#   * one that exists (even without MyConfig)
#   * the first one on the list
sub cpan_home {
    my @dirs = cpan_home_dir_candidates();
    for my $d (@dirs) {
        return $d if -f &quot;$d/CPAN/MyConfig.pm&quot;;
    }
    for my $d (@dirs) {
        return $d if -d $d;
    }
    return $dirs[0];
}

sub _new_config_name {
    return File::Spec-&gt;catfile(cpan_home(), 'CPAN', 'MyConfig.pm');
}

# returns mandatory but missing entries in the Config
sub missing_config_data {
    my(@miss);
    for (
         &quot;auto_commit&quot;,
         &quot;build_cache&quot;,
         &quot;build_dir&quot;,
         &quot;cache_metadata&quot;,
         &quot;cpan_home&quot;,
         &quot;ftp_proxy&quot;,
         #&quot;gzip&quot;,
         &quot;http_proxy&quot;,
         &quot;index_expire&quot;,
         #&quot;inhibit_startup_message&quot;,
         &quot;keep_source_where&quot;,
         #&quot;make&quot;,
         &quot;make_arg&quot;,
         &quot;make_install_arg&quot;,
         &quot;makepl_arg&quot;,
         &quot;mbuild_arg&quot;,
         &quot;mbuild_install_arg&quot;,
         ($^O eq &quot;MSWin32&quot; ? &quot;&quot; : &quot;mbuild_install_build_command&quot;),
         &quot;mbuildpl_arg&quot;,
         &quot;no_proxy&quot;,
         #&quot;pager&quot;,
         &quot;prerequisites_policy&quot;,
         &quot;scan_cache&quot;,
         #&quot;tar&quot;,
         #&quot;unzip&quot;,
         &quot;urllist&quot;,
        ) {
        next unless exists $keys{$_};
        push @miss, $_ unless defined $CPAN::Config-&gt;{$_};
    }
    return @miss;
}

sub help {
    $CPAN::Frontend-&gt;myprint(q[
Known options:
  commit    commit session changes to disk
  defaults  reload default config values from disk
  help      this help
  init      enter a dialog to set all or a set of parameters

Edit key values as in the following (the &quot;o&quot; is a literal letter o):
  o conf build_cache 15
  o conf build_dir &quot;/foo/bar&quot;
  o conf urllist shift
  o conf urllist unshift ftp://ftp.foo.bar/
  o conf inhibit_startup_message 1

]);
    1; #don't reprint CPAN::Config
}

sub cpl {
    my($word,$line,$pos) = @_;
    $word ||= &quot;&quot;;
    CPAN-&gt;debug(&quot;word[$word] line[$line] pos[$pos]&quot;) if $CPAN::DEBUG;
    my(@words) = split &quot; &quot;, substr($line,0,$pos+1);
    if (
        defined($words[2])
        and
        $words[2] =~ /list$/
        and
        (
        @words == 3
        ||
        @words == 4 &amp;&amp; length($word)
        )
       ) {
        return grep /^\Q$word\E/, qw(splice shift unshift pop push);
    } elsif (defined($words[2])
             and
             $words[2] eq &quot;init&quot;
             and
            (
             @words == 3
             ||
             @words &gt;= 4 &amp;&amp; length($word)
            )) {
        return sort grep /^\Q$word\E/, keys %keys;
    } elsif (@words &gt;= 4) {
        return ();
    }
    my %seen;
    my(@o_conf) =  sort grep { !$seen{$_}++ }
        keys %can,
            keys %$CPAN::Config,
                keys %keys;
    return grep /^\Q$word\E/, @o_conf;
}

sub prefs_lookup {
    my($self,$distro,$what) = @_;

    if ($prefssupport{$what}) {
        return $CPAN::Config-&gt;{$what} unless
            $distro
                and $distro-&gt;prefs
                    and $distro-&gt;prefs-&gt;{cpanconfig}
                        and defined $distro-&gt;prefs-&gt;{cpanconfig}{$what};
        return $distro-&gt;prefs-&gt;{cpanconfig}{$what};
    } else {
        $CPAN::Frontend-&gt;mywarn(&quot;Warning: $what not yet officially &quot;.
                                &quot;supported for distroprefs, doing a normal lookup&quot;);
        return $CPAN::Config-&gt;{$what};
    }
}


{
    package
        CPAN::Config; ####::###### #hide from indexer
    # note: J. Nick Koston wrote me that they are using
    # CPAN::Config-&gt;commit although undocumented. I suggested
    # CPAN::Shell-&gt;o(&quot;conf&quot;,&quot;commit&quot;) even when ugly it is at least
    # documented

    # that's why I added the CPAN::Config class with autoload and
    # deprecated warning

    use strict;
    use vars qw($AUTOLOAD $VERSION);
    $VERSION = &quot;5.5008&quot;;

    # formerly CPAN::HandleConfig was known as CPAN::Config
    sub AUTOLOAD { ## no critic
        my $class = shift; # e.g. in dh-make-perl: CPAN::Config
        my($l) = $AUTOLOAD;
        $CPAN::Frontend-&gt;mywarn(&quot;Dispatching deprecated method '$l' to CPAN::HandleConfig\n&quot;);
        $l =~ s/.*:://;
        CPAN::HandleConfig-&gt;$l(@_);
    }
}

1;

__END__

=head1 LICENSE

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

=cut

# Local Variables:
# mode: cperl
# cperl-indent-level: 4
# End:
# vim: ts=4 sts=4 sw=4:
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