[p5sagit/p5-mst-13.2.git] / lib / CPAN / HandleConfig.pm

package CPAN::HandleConfig;
use strict;
use vars qw(%can %keys $dot_cpan $VERSION);

$VERSION = sprintf "%.2f", substr(q$Rev: 469 $,4)/100;

%can = (
  'commit' => "Commit changes to disk",
  'defaults' => "Reload defaults from disk",
  'init'   => "Interactive setting of all options",
);

%keys = map { $_ => undef } qw(
    build_cache build_dir bzip2
    cache_metadata commandnumber_in_prompt cpan_home curl
    dontload_hash
    ftp ftp_passive ftp_proxy
    getcwd gpg gzip
    histfile histsize http_proxy
    inactivity_timeout index_expire inhibit_startup_message
    keep_source_where
    lynx
    make make_arg make_install_arg make_install_make_command makepl_arg
    mbuild_arg mbuild_install_arg mbuild_install_build_command mbuildpl_arg
    ncftp ncftpget no_proxy pager
    prefer_installer prerequisites_policy
    scan_cache shell show_upload_date
    tar term_is_latin
    unzip urllist
    wait_list wget
);

# returns true on successful action
sub edit {
    my($self,@args) = @_;
    return unless @args;
    CPAN->debug("self[$self]args[".join(" | ",@args)."]");
    my($o,$str,$func,$args,$key_exists);
    $o = shift @args;
    $DB::single = 1;
    if($can{$o}) {
	$self->$o(args => \@args);
	return 1;
    } else {
        CPAN->debug("o[$o]") if $CPAN::DEBUG;
        unless (exists $keys{$o}) {
            $CPAN::Frontend->mywarn("Warning: unknown configuration variable '$o'\n");
        }
	if ($o =~ /list$/) {
	    $func = shift @args;
	    $func ||= "";
            CPAN->debug("func[$func]") if $CPAN::DEBUG;
            my $changed;
	    # Let's avoid eval, it's easier to comprehend without.
	    if ($func eq "push") {
		push @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif ($func eq "pop") {
		pop @{$CPAN::Config->{$o}};
                $changed = 1;
	    } elsif ($func eq "shift") {
		shift @{$CPAN::Config->{$o}};
                $changed = 1;
	    } elsif ($func eq "unshift") {
		unshift @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif ($func eq "splice") {
		splice @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif (@args) {
		$CPAN::Config->{$o} = [@args];
                $changed = 1;
	    } else {
                $self->prettyprint($o);
	    }
            if ($o eq "urllist" && $changed) {
                # reset the cached values
                undef $CPAN::FTP::Thesite;
                undef $CPAN::FTP::Themethod;
            }
            return $changed;
        } elsif ($o =~ /_hash$/) {
            push @args, "" if @args % 2;
            $CPAN::Config->{$o} = { @args };
        } else {
	    $CPAN::Config->{$o} = $args[0] if defined $args[0];
	    $self->prettyprint($o);
	}
    }
}

sub prettyprint {
  my($self,$k) = @_;
  my $v = $CPAN::Config->{$k};
  if (ref $v) {
    my(@report);
    if (ref $v eq "ARRAY") {
      @report = map {"\t[$_]\n"} @$v;
    } else {
      @report = map { sprintf("\t%-18s => %s\n",
                              map { "[$_]" } $_,
                              defined $v->{$_} ? $v->{$_} : "UNDEFINED"
                             )} keys %$v;
    }
    $CPAN::Frontend->myprint(
                             join(
                                  "",
                                  sprintf(
                                          "    %-18s\n",
                                          $k
                                         ),
                                  @report
                                 )
                            );
  } elsif (defined $v) {
    $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, $v);
  } else {
    $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, "UNDEFINED");
  }
}

sub commit {
    my($self,@args) = @_;
    my $configpm;
    if (@args) {
      if ($args[0] eq "args") {
        # we have not signed that contract
      } else {
        $configpm = $args[0];
      }
    }
    unless (defined $configpm){
	$configpm ||= $INC{"CPAN/MyConfig.pm"};
	$configpm ||= $INC{"CPAN/Config.pm"};
	$configpm || Carp::confess(q{
CPAN::Config::commit called without an argument.
Please specify a filename where to save the configuration or try
"o conf init" to have an interactive course through configing.
});
    }
    my($mode);
    if (-f $configpm) {
	$mode = (stat $configpm)[2];
	if ($mode && ! -w _) {
	    Carp::confess("$configpm is not writable");
	}
    }

    my $msg;
    $msg = <<EOF unless $configpm =~ /MyConfig/;

# 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. The user-config file is being looked for as
# ~/.cpan/CPAN/MyConfig.pm.

EOF
    $msg ||= "\n";
    my($fh) = FileHandle->new;
    rename $configpm, "$configpm~" if -f $configpm;
    open $fh, ">$configpm" or
        $CPAN::Frontend->mydie("Couldn't open >$configpm: $!");
    $fh->print(qq[$msg\$CPAN::Config = \{\n]);
    foreach (sort keys %$CPAN::Config) {
	$fh->print(
		   "  '$_' => ",
		   $self->neatvalue($CPAN::Config->{$_}),
		   ",\n"
		  );
    }

    $fh->print("};\n1;\n__END__\n");
    close $fh;

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

# 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 "undef" unless defined $v;
    my($t) = ref $v;
    return "q[$v]" unless $t;
    if ($t eq 'ARRAY') {
        my(@m, @neat);
        push @m, "[";
        foreach my $elem (@$v) {
            push @neat, "q[$elem]";
        }
        push @m, join ", ", @neat;
        push @m, "]";
        return join "", @m;
    }
    return "$v" unless $t eq 'HASH';
    my(@m, $key, $val);
    while (($key,$val) = each %$v){
        last unless defined $key; # cautious programming in case (undef,undef) is true
        push(@m,"q[$key]=>".$self->neatvalue($val)) ;
    }
    return "{ ".join(', ',@m)." }";
}

sub defaults {
    my($self) = @_;
    my $done;
    for my $config (qw(CPAN/MyConfig.pm CPAN/Config.pm)) {
      CPAN::Shell->reload_this($config) and $done++;
      last if $done;
    }
    1;
}

sub init {
    my($self,@args) = @_;
    undef $CPAN::Config->{'inhibit_startup_message'}; # lazy trick to
                                                      # have the least
                                                      # important
                                                      # variable
                                                      # undefined
    $self->load(@args);
    1;
}

# This is a piece of repeated code that is abstracted here for
# maintainability.  RMB
#
sub _configpmtest {
    my($configpmdir, $configpmtest) = @_; 
    if (-w $configpmtest) {
        return $configpmtest;
    } elsif (-w $configpmdir) {
        #_#_# following code dumped core on me with 5.003_11, a.k.
        my $configpm_bak = "$configpmtest.bak";
        unlink $configpm_bak if -f $configpm_bak;
        if( -f $configpmtest ) {
            if( rename $configpmtest, $configpm_bak ) {
				$CPAN::Frontend->mywarn(<<END);
Old configuration file $configpmtest
    moved to $configpm_bak
END
	    }
	}
	my $fh = FileHandle->new;
	if ($fh->open(">$configpmtest")) {
	    $fh->print("1;\n");
	    return $configpmtest;
	} else {
	    # Should never happen
	    Carp::confess("Cannot open >$configpmtest");
	}
    } else { return }
}

sub load {
    my($self, %args) = @_;
	$CPAN::Be_Silent++ if $args{be_silent};

    my(@miss);
    use Carp;
    unless ($INC{"CPAN/MyConfig.pm"}) { # this guy has settled his needs already
      eval {require CPAN::Config;}; # not everybody has one
    }
    unless ($dot_cpan++){
      unshift @INC, File::Spec->catdir($ENV{HOME},".cpan");
      eval {require CPAN::MyConfig;}; # override system wide settings
      shift @INC;
    }
    return unless @miss = $self->missing_config_data;

    require CPAN::FirstTime;
    my($configpm,$fh,$redo,$theycalled);
    $redo ||= "";
    $theycalled++ if @miss==1 && $miss[0] eq 'inhibit_startup_message';
    if (defined $INC{"CPAN/Config.pm"} && -w $INC{"CPAN/Config.pm"}) {
	$configpm = $INC{"CPAN/Config.pm"};
	$redo++;
    } elsif (defined $INC{"CPAN/MyConfig.pm"} && -w $INC{"CPAN/MyConfig.pm"}) {
	$configpm = $INC{"CPAN/MyConfig.pm"};
	$redo++;
    } else {
	my($path_to_cpan) = File::Basename::dirname($INC{"CPAN.pm"});
	my($configpmdir) = File::Spec->catdir($path_to_cpan,"CPAN");
	my($configpmtest) = File::Spec->catfile($configpmdir,"Config.pm");
        my $inc_key;
	if (-d $configpmdir or File::Path::mkpath($configpmdir)) {
	    $configpm = _configpmtest($configpmdir,$configpmtest);
            $inc_key = "CPAN/Config.pm";
	}
	unless ($configpm) {
	    $configpmdir = File::Spec->catdir($ENV{HOME},".cpan","CPAN");
	    File::Path::mkpath($configpmdir);
	    $configpmtest = File::Spec->catfile($configpmdir,"MyConfig.pm");
	    $configpm = _configpmtest($configpmdir,$configpmtest);
            $inc_key = "CPAN/MyConfig.pm";
	}
        if ($configpm) {
          $INC{$inc_key} = $configpm;
        } else {
          my $text = qq{WARNING: CPAN.pm is unable to } .
              qq{create a configuration file.};
          output($text, 'confess');
        }

    }
    local($") = ", ";
    $CPAN::Frontend->myprint(<<END) if $redo && ! $theycalled;
Sorry, we have to rerun the configuration dialog for CPAN.pm due to
the following indispensable but missing parameters:

@miss
END
    $CPAN::Frontend->myprint(qq{
$configpm initialized.
});

    sleep 2;
    CPAN::FirstTime::init($configpm, %args);
}

sub missing_config_data {
    my(@miss);
    for (
         "build_cache",
         "build_dir",
         "cache_metadata",
         "cpan_home",
         "ftp_proxy",
         "gzip",
         "http_proxy",
         "index_expire",
         "inhibit_startup_message",
         "keep_source_where",
         "make",
         "make_arg",
         "make_install_arg",
         "makepl_arg",
         "mbuild_arg",
         "mbuild_install_arg",
         "mbuild_install_build_command",
         "mbuildpl_arg",
         "no_proxy",
         "pager",
         "prerequisites_policy",
         "scan_cache",
         "tar",
         "unzip",
         "urllist",
        ) {
	push @miss, $_ unless defined $CPAN::Config->{$_};
    }
    return @miss;
}

sub help {
    $CPAN::Frontend->myprint(q[
Known options:
  defaults  reload default config values from disk
  commit    commit session changes to disk
  init      go through a dialog to set all parameters

You may edit key values in the follow fashion (the "o" is a literal
letter o):

  o conf build_cache 15

  o conf build_dir "/foo/bar"

  o conf urllist shift

  o conf urllist unshift ftp://ftp.foo.bar/

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

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


package ####::###### #hide from indexer
    CPAN::Config;
# note: J. Nick Koston wrote me that they are using
# CPAN::Config->commit although undocumented. I suggested
# CPAN::Shell->o("conf","commit") 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);
$VERSION = sprintf "%.2f", substr(q$Rev: 469 $,4)/100;

# formerly CPAN::HandleConfig was known as CPAN::Config
sub AUTOLOAD {
  my($l) = $AUTOLOAD;
  $CPAN::Frontend->mywarn("Dispatching deprecated method '$l' to CPAN::HandleConfig");
  $l =~ s/.*:://;
  CPAN::HandleConfig->$l(@_);
}

1;

__END__
# Local Variables:
# mode: cperl
# cperl-indent-level: 4
# End:
Commit	Line	Data
e82b9348	1	package CPAN::HandleConfig;
e82b9348	2	use strict;
1a43333d	3	use vars qw(%can %keys $dot_cpan $VERSION);
1a43333d	4
ca79d794	5	$VERSION = sprintf "%.2f", substr(q$Rev: 469 $,4)/100;
e82b9348	6
	7	%can = (
	8	'commit' => "Commit changes to disk",
	9	'defaults' => "Reload defaults from disk",
	10	'init' => "Interactive setting of all options",
	11	);
	12
	13	%keys = map { $_ => undef } qw(
	14	build_cache build_dir bzip2
9ddc4ed0	15	cache_metadata commandnumber_in_prompt cpan_home curl
e82b9348	16	dontload_hash
ca79d794	17	ftp ftp_passive ftp_proxy
e82b9348	18	getcwd gpg gzip
	19	histfile histsize http_proxy
	20	inactivity_timeout index_expire inhibit_startup_message
	21	keep_source_where
	22	lynx
	23	make make_arg make_install_arg make_install_make_command makepl_arg
	24	mbuild_arg mbuild_install_arg mbuild_install_build_command mbuildpl_arg
	25	ncftp ncftpget no_proxy pager
	26	prefer_installer prerequisites_policy
	27	scan_cache shell show_upload_date
	28	tar term_is_latin
	29	unzip urllist
	30	wait_list wget
	31	);
	32
	33	# returns true on successful action
	34	sub edit {
	35	my($self,@args) = @_;
	36	return unless @args;
	37	CPAN->debug("self[$self]args[".join(" \| ",@args)."]");
	38	my($o,$str,$func,$args,$key_exists);
	39	$o = shift @args;
9ddc4ed0	40	$DB::single = 1;
e82b9348	41	if($can{$o}) {
9ddc4ed0	42	$self->$o(args => \@args);
e82b9348	43	return 1;
	44	} else {
	45	CPAN->debug("o[$o]") if $CPAN::DEBUG;
	46	unless (exists $keys{$o}) {
	47	$CPAN::Frontend->mywarn("Warning: unknown configuration variable '$o'\n");
	48	}
	49	if ($o =~ /list$/) {
	50	$func = shift @args;
	51	$func \|\|= "";
	52	CPAN->debug("func[$func]") if $CPAN::DEBUG;
	53	my $changed;
	54	# Let's avoid eval, it's easier to comprehend without.
	55	if ($func eq "push") {
	56	push @{$CPAN::Config->{$o}}, @args;
	57	$changed = 1;
	58	} elsif ($func eq "pop") {
	59	pop @{$CPAN::Config->{$o}};
	60	$changed = 1;
	61	} elsif ($func eq "shift") {
	62	shift @{$CPAN::Config->{$o}};
	63	$changed = 1;
	64	} elsif ($func eq "unshift") {
	65	unshift @{$CPAN::Config->{$o}}, @args;
	66	$changed = 1;
	67	} elsif ($func eq "splice") {
	68	splice @{$CPAN::Config->{$o}}, @args;
	69	$changed = 1;
	70	} elsif (@args) {
	71	$CPAN::Config->{$o} = [@args];
	72	$changed = 1;
	73	} else {
	74	$self->prettyprint($o);
	75	}
	76	if ($o eq "urllist" && $changed) {
	77	# reset the cached values
	78	undef $CPAN::FTP::Thesite;
	79	undef $CPAN::FTP::Themethod;
	80	}
	81	return $changed;
ca79d794	82	} elsif ($o =~ /_hash$/) {
	83	push @args, "" if @args % 2;
	84	$CPAN::Config->{$o} = { @args };
	85	} else {
e82b9348	86	$CPAN::Config->{$o} = $args[0] if defined $args[0];
	87	$self->prettyprint($o);
	88	}
	89	}
	90	}
	91
	92	sub prettyprint {
	93	my($self,$k) = @_;
	94	my $v = $CPAN::Config->{$k};
	95	if (ref $v) {
9ddc4ed0	96	my(@report);
	97	if (ref $v eq "ARRAY") {
	98	@report = map {"\t[$_]\n"} @$v;
	99	} else {
	100	@report = map { sprintf("\t%-18s => %s\n",
	101	map { "[$_]" } $_,
	102	defined $v->{$_} ? $v->{$_} : "UNDEFINED"
	103	)} keys %$v;
	104	}
e82b9348	105	$CPAN::Frontend->myprint(
	106	join(
	107	"",
	108	sprintf(
	109	" %-18s\n",
	110	$k
	111	),
9ddc4ed0	112	@report
e82b9348	113	)
	114	);
	115	} elsif (defined $v) {
	116	$CPAN::Frontend->myprint(sprintf " %-18s [%s]\n", $k, $v);
	117	} else {
	118	$CPAN::Frontend->myprint(sprintf " %-18s [%s]\n", $k, "UNDEFINED");
	119	}
	120	}
	121
	122	sub commit {
9ddc4ed0	123	my($self,@args) = @_;
	124	my $configpm;
	125	if (@args) {
	126	if ($args[0] eq "args") {
	127	# we have not signed that contract
	128	} else {
	129	$configpm = $args[0];
	130	}
	131	}
e82b9348	132	unless (defined $configpm){
	133	$configpm \|\|= $INC{"CPAN/MyConfig.pm"};
	134	$configpm \|\|= $INC{"CPAN/Config.pm"};
	135	$configpm \|\| Carp::confess(q{
	136	CPAN::Config::commit called without an argument.
	137	Please specify a filename where to save the configuration or try
	138	"o conf init" to have an interactive course through configing.
	139	});
	140	}
	141	my($mode);
	142	if (-f $configpm) {
	143	$mode = (stat $configpm)[2];
	144	if ($mode && ! -w _) {
	145	Carp::confess("$configpm is not writable");
	146	}
	147	}
	148
	149	my $msg;
	150	$msg = <<EOF unless $configpm =~ /MyConfig/;
	151
	152	# This is CPAN.pm's systemwide configuration file. This file provides
	153	# defaults for users, and the values can be changed in a per-user
	154	# configuration file. The user-config file is being looked for as
	155	# ~/.cpan/CPAN/MyConfig.pm.
	156
	157	EOF
	158	$msg \|\|= "\n";
	159	my($fh) = FileHandle->new;
	160	rename $configpm, "$configpm~" if -f $configpm;
	161	open $fh, ">$configpm" or
	162	$CPAN::Frontend->mydie("Couldn't open >$configpm: $!");
	163	$fh->print(qq[$msg\$CPAN::Config = \{\n]);
	164	foreach (sort keys %$CPAN::Config) {
	165	$fh->print(
	166	" '$_' => ",
ca79d794	167	$self->neatvalue($CPAN::Config->{$_}),
e82b9348	168	",\n"
	169	);
	170	}
	171
	172	$fh->print("};\n1;\n__END__\n");
	173	close $fh;
	174
	175	#$mode = 0444 \| ( $mode & 0111 ? 0111 : 0 );
	176	#chmod $mode, $configpm;
	177	###why was that so? $self->defaults;
9ddc4ed0	178	$CPAN::Frontend->myprint("commit: wrote '$configpm'\n");
e82b9348	179	1;
	180	}
	181
ca79d794	182	# stolen from MakeMaker; not taking the original because it is buggy;
	183	# bugreport will have to say: keys of hashes remain unquoted and can
	184	# produce syntax errors
	185	sub neatvalue {
	186	my($self, $v) = @_;
	187	return "undef" unless defined $v;
	188	my($t) = ref $v;
	189	return "q[$v]" unless $t;
	190	if ($t eq 'ARRAY') {
	191	my(@m, @neat);
	192	push @m, "[";
	193	foreach my $elem (@$v) {
	194	push @neat, "q[$elem]";
	195	}
	196	push @m, join ", ", @neat;
	197	push @m, "]";
	198	return join "", @m;
	199	}
	200	return "$v" unless $t eq 'HASH';
	201	my(@m, $key, $val);
	202	while (($key,$val) = each %$v){
	203	last unless defined $key; # cautious programming in case (undef,undef) is true
	204	push(@m,"q[$key]=>".$self->neatvalue($val)) ;
	205	}
	206	return "{ ".join(', ',@m)." }";
	207	}
	208
e82b9348	209	sub defaults {
e82b9348	210	my($self) = @_;
c9869e1c	211	my $done;
	212	for my $config (qw(CPAN/MyConfig.pm CPAN/Config.pm)) {
	213	CPAN::Shell->reload_this($config) and $done++;
	214	last if $done;
	215	}
e82b9348	216	1;
	217	}
	218
	219	sub init {
9ddc4ed0	220	my($self,@args) = @_;
e82b9348	221	undef $CPAN::Config->{'inhibit_startup_message'}; # lazy trick to
	222	# have the least
	223	# important
	224	# variable
	225	# undefined
9ddc4ed0	226	$self->load(@args);
e82b9348	227	1;
	228	}
	229
	230	# This is a piece of repeated code that is abstracted here for
	231	# maintainability. RMB
	232	#
	233	sub _configpmtest {
	234	my($configpmdir, $configpmtest) = @_;
	235	if (-w $configpmtest) {
	236	return $configpmtest;
	237	} elsif (-w $configpmdir) {
	238	#_#_# following code dumped core on me with 5.003_11, a.k.
	239	my $configpm_bak = "$configpmtest.bak";
	240	unlink $configpm_bak if -f $configpm_bak;
	241	if( -f $configpmtest ) {
	242	if( rename $configpmtest, $configpm_bak ) {
	243	$CPAN::Frontend->mywarn(<<END);
	244	Old configuration file $configpmtest
	245	moved to $configpm_bak
	246	END
	247	}
	248	}
	249	my $fh = FileHandle->new;
	250	if ($fh->open(">$configpmtest")) {
	251	$fh->print("1;\n");
	252	return $configpmtest;
	253	} else {
	254	# Should never happen
	255	Carp::confess("Cannot open >$configpmtest");
	256	}
	257	} else { return }
	258	}
	259
	260	sub load {
	261	my($self, %args) = @_;
	262	$CPAN::Be_Silent++ if $args{be_silent};
	263
	264	my(@miss);
	265	use Carp;
9ddc4ed0	266	unless ($INC{"CPAN/MyConfig.pm"}) { # this guy has settled his needs already
	267	eval {require CPAN::Config;}; # not everybody has one
	268	}
e82b9348	269	unless ($dot_cpan++){
e82b9348	270	unshift @INC, File::Spec->catdir($ENV{HOME},".cpan");
9ddc4ed0	271	eval {require CPAN::MyConfig;}; # override system wide settings
e82b9348	272	shift @INC;
	273	}
	274	return unless @miss = $self->missing_config_data;
	275
	276	require CPAN::FirstTime;
	277	my($configpm,$fh,$redo,$theycalled);
	278	$redo \|\|= "";
	279	$theycalled++ if @miss==1 && $miss[0] eq 'inhibit_startup_message';
	280	if (defined $INC{"CPAN/Config.pm"} && -w $INC{"CPAN/Config.pm"}) {
	281	$configpm = $INC{"CPAN/Config.pm"};
	282	$redo++;
	283	} elsif (defined $INC{"CPAN/MyConfig.pm"} && -w $INC{"CPAN/MyConfig.pm"}) {
	284	$configpm = $INC{"CPAN/MyConfig.pm"};
	285	$redo++;
	286	} else {
	287	my($path_to_cpan) = File::Basename::dirname($INC{"CPAN.pm"});
	288	my($configpmdir) = File::Spec->catdir($path_to_cpan,"CPAN");
	289	my($configpmtest) = File::Spec->catfile($configpmdir,"Config.pm");
c9869e1c	290	my $inc_key;
e82b9348	291	if (-d $configpmdir or File::Path::mkpath($configpmdir)) {
c9869e1c	292	$configpm = _configpmtest($configpmdir,$configpmtest);
c9869e1c	293	$inc_key = "CPAN/Config.pm";
e82b9348	294	}
	295	unless ($configpm) {
	296	$configpmdir = File::Spec->catdir($ENV{HOME},".cpan","CPAN");
	297	File::Path::mkpath($configpmdir);
	298	$configpmtest = File::Spec->catfile($configpmdir,"MyConfig.pm");
c9869e1c	299	$configpm = _configpmtest($configpmdir,$configpmtest);
c9869e1c	300	$inc_key = "CPAN/MyConfig.pm";
e82b9348	301	}
c9869e1c	302	if ($configpm) {
	303	$INC{$inc_key} = $configpm;
	304	} else {
	305	my $text = qq{WARNING: CPAN.pm is unable to } .
	306	qq{create a configuration file.};
	307	output($text, 'confess');
	308	}
	309
e82b9348	310	}
	311	local($") = ", ";
	312	$CPAN::Frontend->myprint(<<END) if $redo && ! $theycalled;
0cf35e6a	313	Sorry, we have to rerun the configuration dialog for CPAN.pm due to
0cf35e6a	314	the following indispensable but missing parameters:
e82b9348	315
	316	@miss
	317	END
	318	$CPAN::Frontend->myprint(qq{
	319	$configpm initialized.
	320	});
	321
	322	sleep 2;
	323	CPAN::FirstTime::init($configpm, %args);
	324	}
	325
	326	sub missing_config_data {
	327	my(@miss);
	328	for (
0cf35e6a	329	"build_cache",
	330	"build_dir",
	331	"cache_metadata",
	332	"cpan_home",
	333	"ftp_proxy",
	334	"gzip",
	335	"http_proxy",
	336	"index_expire",
	337	"inhibit_startup_message",
	338	"keep_source_where",
	339	"make",
	340	"make_arg",
	341	"make_install_arg",
	342	"makepl_arg",
	343	"mbuild_arg",
	344	"mbuild_install_arg",
	345	"mbuild_install_build_command",
	346	"mbuildpl_arg",
	347	"no_proxy",
e82b9348	348	"pager",
e82b9348	349	"prerequisites_policy",
0cf35e6a	350	"scan_cache",
	351	"tar",
	352	"unzip",
	353	"urllist",
e82b9348	354	) {
	355	push @miss, $_ unless defined $CPAN::Config->{$_};
	356	}
	357	return @miss;
	358	}
	359
e82b9348	360	sub help {
	361	$CPAN::Frontend->myprint(q[
	362	Known options:
	363	defaults reload default config values from disk
	364	commit commit session changes to disk
	365	init go through a dialog to set all parameters
	366
	367	You may edit key values in the follow fashion (the "o" is a literal
	368	letter o):
	369
	370	o conf build_cache 15
	371
	372	o conf build_dir "/foo/bar"
	373
	374	o conf urllist shift
	375
	376	o conf urllist unshift ftp://ftp.foo.bar/
	377
	378	]);
	379	undef; #don't reprint CPAN::Config
	380	}
	381
	382	sub cpl {
	383	my($word,$line,$pos) = @_;
	384	$word \|\|= "";
	385	CPAN->debug("word[$word] line[$line] pos[$pos]") if $CPAN::DEBUG;
	386	my(@words) = split " ", substr($line,0,$pos+1);
	387	if (
	388	defined($words[2])
	389	and
	390	(
	391	$words[2] =~ /list$/ && @words == 3
	392	\|\|
	393	$words[2] =~ /list$/ && @words == 4 && length($word)
	394	)
	395	) {
	396	return grep /^\Q$word\E/, qw(splice shift unshift pop push);
	397	} elsif (@words >= 4) {
	398	return ();
	399	}
	400	my %seen;
	401	my(@o_conf) = sort grep { !$seen{$_}++ }
	402	keys %can,
	403	keys %$CPAN::Config,
	404	keys %keys;
	405	return grep /^\Q$word\E/, @o_conf;
	406	}
	407
9ddc4ed0	408
	409	package ####::###### #hide from indexer
	410	CPAN::Config;
	411	# note: J. Nick Koston wrote me that they are using
	412	# CPAN::Config->commit although undocumented. I suggested
	413	# CPAN::Shell->o("conf","commit") even when ugly it is at least
	414	# documented
	415
	416	# that's why I added the CPAN::Config class with autoload and
	417	# deprecated warning
	418
	419	use strict;
	420	use vars qw($AUTOLOAD $VERSION);
ca79d794	421	$VERSION = sprintf "%.2f", substr(q$Rev: 469 $,4)/100;
9ddc4ed0	422
	423	# formerly CPAN::HandleConfig was known as CPAN::Config
	424	sub AUTOLOAD {
	425	my($l) = $AUTOLOAD;
	426	$CPAN::Frontend->mywarn("Dispatching deprecated method '$l' to CPAN::HandleConfig");
	427	$l =~ s/.*:://;
	428	CPAN::HandleConfig->$l(@_);
	429	}
	430
e82b9348	431	1;
0cf35e6a	432
	433	__END__
	434	# Local Variables:
	435	# mode: cperl
ca79d794	436	# cperl-indent-level: 4
0cf35e6a	437	# End: