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

package CPAN::Mirrored::By;

sub new { 
    my($self,@arg) = @_;
    bless [@arg], $self;
}
sub continent { shift->[0] }
sub country { shift->[1] }
sub url { shift->[2] }

package CPAN::FirstTime;

use strict;
use ExtUtils::MakeMaker qw(prompt);
use FileHandle ();
use File::Basename ();
use File::Path ();
use vars qw($VERSION);
$VERSION = substr q$Revision: 1.38 $, 10;

=head1 NAME

CPAN::FirstTime - Utility for CPAN::Config file Initialization

=head1 SYNOPSIS

CPAN::FirstTime::init()

=head1 DESCRIPTION

The init routine asks a few questions and writes a CPAN::Config
file. Nothing special.

=cut


sub init {
    my($configpm) = @_;
    use Config;
    unless ($CPAN::VERSION) {
	require CPAN::Nox;
    }
    eval {require CPAN::Config;};
    $CPAN::Config ||= {};
    local($/) = "\n";
    local($\) = "";
    local($|) = 1;

    my($ans,$default,$local,$cont,$url,$expected_size);

    #
    # Files, directories
    #

    print qq[

CPAN is the world-wide archive of perl resources. It consists of about
100 sites that all replicate the same contents all around the globe.
Many countries have at least one CPAN site already. The resources
found on CPAN are easily accessible with the CPAN.pm module. If you
want to use CPAN.pm, you have to configure it properly.

If you do not want to enter a dialog now, you can answer 'no' to this
question and I\'ll try to autoconfigure. (Note: you can revisit this
dialog anytime later by typing 'o conf init' at the cpan prompt.)

];

    my $manual_conf =
	ExtUtils::MakeMaker::prompt("Are you ready for manual configuration?",
				    "yes");
    my $fastread;
    {
      local $^W;
      if ($manual_conf =~ /^\s*y/i) {
	$fastread = 0;
	*prompt = \&ExtUtils::MakeMaker::prompt;
      } else {
	$fastread = 1;
	$CPAN::Config->{urllist} ||= [];
	# prototype should match that of &MakeMaker::prompt
	*prompt = sub ($;$) {
	  my($q,$a) = @_;
	  my($ret) = defined $a ? $a : "";
	  printf qq{%s [%s]\n\n}, $q, $ret;
	  $ret;
	};
      }
    }
    print qq{

The following questions are intended to help you with the
configuration. The CPAN module needs a directory of its own to cache
important index files and maybe keep a temporary mirror of CPAN files.
This may be a site-wide directory or a personal directory.

};

    my $cpan_home = $CPAN::Config->{cpan_home} || MM->catdir($ENV{HOME}, ".cpan");
    if (-d $cpan_home) {
	print qq{

I see you already have a  directory
    $cpan_home
Shall we use it as the general CPAN build and cache directory?

};
    } else {
	print qq{

First of all, I\'d like to create this directory. Where?

};
    }

    $default = $cpan_home;
    while ($ans = prompt("CPAN build and cache directory?",$default)) {
      eval { File::Path::mkpath($ans); }; # dies if it can't
      if ($@) {
	warn "Couldn't create directory $ans.
Please retry.\n";
	next;
      }
      if (-d $ans && -w _) {
	last;
      } else {
	warn "Couldn't find directory $ans
  or directory is not writable. Please retry.\n";
      }
    }
    $CPAN::Config->{cpan_home} = $ans;

    print qq{

If you want, I can keep the source files after a build in the cpan
home directory. If you choose so then future builds will take the
files from there. If you don\'t want to keep them, answer 0 to the
next question.

};

    $CPAN::Config->{keep_source_where} = MM->catdir($CPAN::Config->{cpan_home},"sources");
    $CPAN::Config->{build_dir} = MM->catdir($CPAN::Config->{cpan_home},"build");

    #
    # Cache size, Index expire
    #

    print qq{

How big should the disk cache be for keeping the build directories
with all the intermediate files?

};

    $default = $CPAN::Config->{build_cache} || 10;
    $ans = prompt("Cache size for build directory (in MB)?", $default);
    $CPAN::Config->{build_cache} = $ans;

    # XXX This the time when we refetch the index files (in days)
    $CPAN::Config->{'index_expire'} = 1;

    print qq{

By default, each time the CPAN module is started, cache scanning
is performed to keep the cache size in sync. To prevent from this,
disable the cache scanning with 'never'.

};

    $default = $CPAN::Config->{scan_cache} || 'atstart';
    do {
        $ans = prompt("Perform cache scanning (atstart or never)?", $default);
    } while ($ans ne 'atstart' && $ans ne 'never');
    $CPAN::Config->{scan_cache} = $ans;

    #
    # prerequisites_policy
    # Do we follow PREREQ_PM?
    #
    print qq{

The CPAN module can detect when a module that which you are trying to
build depends on prerequisites. If this happens, it can build the
prerequisites for you automatically ('follow'), ask you for
confirmation ('ask'), or just ignore them ('ignore'). Please set your
policy to one of the three values.

};

    $default = $CPAN::Config->{prerequisites_policy} || 'follow';
    do {
      $ans =
	  prompt("Policy on building prerequisites (follow, ask or ignore)?",
		 $default);
    } while ($ans ne 'follow' && $ans ne 'ask' && $ans ne 'ignore');
    $CPAN::Config->{prerequisites_policy} = $ans;

    #
    # External programs
    #

    print qq{

The CPAN module will need a few external programs to work
properly. Please correct me, if I guess the wrong path for a program.
Don\'t panic if you do not have some of them, just press ENTER for
those.

};

    my $old_warn = $^W;
    local $^W if $^O eq 'MacOS';
    my(@path) = split /$Config{'path_sep'}/, $ENV{'PATH'};
    local $^W = $old_warn;
    my $progname;
    for $progname (qw/gzip tar unzip make lynx ncftpget ncftp ftp/){
      if ($^O eq 'MacOS') {
          $CPAN::Config->{$progname} = 'not_here';
          next;
      }
      my $progcall = $progname;
      # we don't need ncftp if we have ncftpget
      next if $progname eq "ncftp" && $CPAN::Config->{ncftpget} gt " ";
      my $path = $CPAN::Config->{$progname} 
	  || $Config::Config{$progname}
	      || "";
      if (MM->file_name_is_absolute($path)) {
	# testing existence is not good enough, some have these exe
	# extensions

	# warn "Warning: configured $path does not exist\n" unless -e $path;
	# $path = "";
      } else {
	$path = '';
      }
      unless ($path) {
	# e.g. make -> nmake
	$progcall = $Config::Config{$progname} if $Config::Config{$progname};
      }

      $path ||= find_exe($progcall,[@path]);
      warn "Warning: $progcall not found in PATH\n" unless
	  $path; # not -e $path, because find_exe already checked that
      $ans = prompt("Where is your $progname program?",$path) || $path;
      $CPAN::Config->{$progname} = $ans;
    }
    my $path = $CPAN::Config->{'pager'} || 
	$ENV{PAGER} || find_exe("less",[@path]) || 
	    find_exe("more",[@path]) || ($^O eq 'MacOS' ? $ENV{EDITOR} : 0 )
	    || "more";
    $ans = prompt("What is your favorite pager program?",$path);
    $CPAN::Config->{'pager'} = $ans;
    $path = $CPAN::Config->{'shell'};
    if (MM->file_name_is_absolute($path)) {
	warn "Warning: configured $path does not exist\n" unless -e $path;
	$path = "";
    }
    $path ||= $ENV{SHELL};
    if ($^O eq 'MacOS') {
        $CPAN::Config->{'shell'} = 'not_here';
    } else {
        $path =~ s,\\,/,g if $^O eq 'os2';	# Cosmetic only
        $ans = prompt("What is your favorite shell?",$path);
        $CPAN::Config->{'shell'} = $ans;
    }

    #
    # Arguments to make etc.
    #

    print qq{

Every Makefile.PL is run by perl in a separate process. Likewise we
run \'make\' and \'make install\' in processes. If you have any parameters
\(e.g. PREFIX, INSTALLPRIVLIB, UNINST or the like\) you want to pass to
the calls, please specify them here.

If you don\'t understand this question, just press ENTER.

};

    $default = $CPAN::Config->{makepl_arg} || "";
    $CPAN::Config->{makepl_arg} =
	prompt("Parameters for the 'perl Makefile.PL' command?",$default);
    $default = $CPAN::Config->{make_arg} || "";
    $CPAN::Config->{make_arg} = prompt("Parameters for the 'make' command?",$default);

    $default = $CPAN::Config->{make_install_arg} || $CPAN::Config->{make_arg} || "";
    $CPAN::Config->{make_install_arg} =
	prompt("Parameters for the 'make install' command?",$default);

    #
    # Alarm period
    #

    print qq{

Sometimes you may wish to leave the processes run by CPAN alone
without caring about them. As sometimes the Makefile.PL contains
question you\'re expected to answer, you can set a timer that will
kill a 'perl Makefile.PL' process after the specified time in seconds.

If you set this value to 0, these processes will wait forever. This is
the default and recommended setting.

};

    $default = $CPAN::Config->{inactivity_timeout} || 0;
    $CPAN::Config->{inactivity_timeout} =
	prompt("Timeout for inactivity during Makefile.PL?",$default);

    # Proxies

    print qq{

If you\'re accessing the net via proxies, you can specify them in the
CPAN configuration or via environment variables. The variable in
the \$CPAN::Config takes precedence.

};

    for (qw/ftp_proxy http_proxy no_proxy/) {
	$default = $CPAN::Config->{$_} || $ENV{$_};
	$CPAN::Config->{$_} = prompt("Your $_?",$default);
    }

    #
    # MIRRORED.BY
    #

    conf_sites() unless $fastread;

    unless (@{$CPAN::Config->{'wait_list'}||[]}) {
	print qq{

WAIT support is available as a Plugin. You need the CPAN::WAIT module
to actually use it.  But we need to know your favorite WAIT server. If
you don\'t know a WAIT server near you, just press ENTER.

};
	$default = "wait://ls6.informatik.uni-dortmund.de:1404";
	$ans = prompt("Your favorite WAIT server?\n  ",$default);
	push @{$CPAN::Config->{'wait_list'}}, $ans;
    }

    # We don't ask that now, it will be noticed in time, won't it?
    $CPAN::Config->{'inhibit_startup_message'} = 0;
    $CPAN::Config->{'getcwd'} = 'cwd';

    print "\n\n";
    CPAN::Config->commit($configpm);
}

sub conf_sites {
  my $m = 'MIRRORED.BY';
  my $mby = MM->catfile($CPAN::Config->{keep_source_where},$m);
  File::Path::mkpath(File::Basename::dirname($mby));
  if (-f $mby && -f $m && -M $m < -M $mby) {
    require File::Copy;
    File::Copy::copy($m,$mby) or die "Could not update $mby: $!";
  }
  my $loopcount = 0;
  while () {
    if ( ! -f $mby ){
      print qq{You have no $mby
  I\'m trying to fetch one
};
      $mby = CPAN::FTP->localize($m,$mby,3);
    } elsif (-M $mby > 60 && $loopcount == 0) {
      print qq{Your $mby is older than 60 days,
  I\'m trying to fetch one
};
      $mby = CPAN::FTP->localize($m,$mby,3);
      $loopcount++;
    } elsif (-s $mby == 0) {
      print qq{You have an empty $mby,
  I\'m trying to fetch one
};
      $mby = CPAN::FTP->localize($m,$mby,3);
    } else {
      last;
    }
  }
  read_mirrored_by($mby);
}

sub find_exe {
    my($exe,$path) = @_;
    my($dir);
    #warn "in find_exe exe[$exe] path[@$path]";
    for $dir (@$path) {
	my $abs = MM->catfile($dir,$exe);
	if (($abs = MM->maybe_command($abs))) {
	    return $abs;
	}
    }
}

sub picklist {
    my($items,$prompt,$default,$require_nonempty,$empty_warning)=@_;
    $default ||= '';

    my ($item, $i);
    for $item (@$items) {
	printf "(%d) %s\n", ++$i, $item;
    }

    my @nums;
    while (1) {
	my $num = prompt($prompt,$default);
	@nums = split (' ', $num);
	(warn "invalid items entered, try again\n"), next
	    if grep (/\D/ || $_ < 1 || $_ > $i, @nums);
	if ($require_nonempty) {
	    (warn "$empty_warning\n"), next
		unless @nums;
	}
	last;
    }
    print "\n";
    for (@nums) { $_-- }
    @{$items}[@nums];
}

sub read_mirrored_by {
    my($local) = @_;
    my(%all,$url,$expected_size,$default,$ans,$host,$dst,$country,$continent,@location);
    my $fh = FileHandle->new;
    $fh->open($local) or die "Couldn't open $local: $!";
    local $/ = "\012";
    while (<$fh>) {
	($host) = /^([\w\.\-]+)/ unless defined $host;
	next unless defined $host;
	next unless /\s+dst_(dst|location)/;
	/location\s+=\s+\"([^\"]+)/ and @location = (split /\s*,\s*/, $1) and
	    ($continent, $country) = @location[-1,-2];
	$continent =~ s/\s\(.*//;
	$continent =~ s/\W+$//; # if Jarkko doesn't know latitude/longitude
	/dst_dst\s+=\s+\"([^\"]+)/  and $dst = $1;
	next unless $host && $dst && $continent && $country;
	$all{$continent}{$country}{$dst} = CPAN::Mirrored::By->new($continent,$country,$dst);
	undef $host;
	$dst=$continent=$country="";
    }
    $fh->close;
    $CPAN::Config->{urllist} ||= [];
    my(@previous_urls);
    if (@previous_urls = @{$CPAN::Config->{urllist}}) {
	$CPAN::Config->{urllist} = [];
    }

    print qq{

Now we need to know where your favorite CPAN sites are located. Push
a few sites onto the array (just in case the first on the array won\'t
work). If you are mirroring CPAN to your local workstation, specify a
file: URL.

First, pick a nearby continent and country (you can pick several of
each, separated by spaces, or none if you just want to keep your
existing selections). Then, you will be presented with a list of URLs
of CPAN mirrors in the countries you selected, along with previously
selected URLs. Select some of those URLs, or just keep the old list.
Finally, you will be prompted for any extra URLs -- file:, ftp:, or
http: -- that host a CPAN mirror.

};

    my (@cont, $cont, %cont, @countries, @urls, %seen);
    my $no_previous_warn = 
       "Sorry! since you don't have any existing picks, you must make a\n" .
       "geographic selection.";
    @cont = picklist([sort keys %all],
                     "Select your continent (or several nearby continents)",
                     '',
                     ! @previous_urls,
                     $no_previous_warn);


    foreach $cont (@cont) {
        my @c = sort keys %{$all{$cont}};
        @cont{@c} = map ($cont, 0..$#c);
        @c = map ("$_ ($cont)", @c) if @cont > 1;
        push (@countries, @c);
    }

    if (@countries) {
        @countries = picklist (\@countries,
                               "Select your country (or several nearby countries)",
                               '',
                               ! @previous_urls,
                               $no_previous_warn);
        %seen = map (($_ => 1), @previous_urls);
        # hmmm, should take list of defaults from CPAN::Config->{'urllist'}...
        foreach $country (@countries) {
            (my $bare_country = $country) =~ s/ \(.*\)//;
            my @u = sort keys %{$all{$cont{$bare_country}}{$bare_country}};
            @u = grep (! $seen{$_}, @u);
            @u = map ("$_ ($bare_country)", @u)
               if @countries > 1;
            push (@urls, @u);
        }
    }
    push (@urls, map ("$_ (previous pick)", @previous_urls));
    my $prompt = "Select as many URLs as you like";
    if (@previous_urls) {
       $default = join (' ', ((scalar @urls) - (scalar @previous_urls) + 1) ..
                             (scalar @urls));
       $prompt .= "\n(or just hit RETURN to keep your previous picks)";
    }

    @urls = picklist (\@urls, $prompt, $default);
    foreach (@urls) { s/ \(.*\)//; }
    %seen = map (($_ => 1), @urls);

    do {
        $ans = prompt ("Enter another URL or RETURN to quit:", "");

        if ($ans) {
            $ans =~ s|/?$|/|; # has to end with one slash
            $ans = "file:$ans" unless $ans =~ /:/; # without a scheme is a file:
            if ($ans =~ /^\w+:\/./) {
               push @urls, $ans 
                  unless $seen{$ans};
            }
            else {
                print qq{"$ans" doesn\'t look like an URL at first sight.
I\'ll ignore it for now.  You can add it to $INC{'CPAN/MyConfig.pm'}
later if you\'re sure it\'s right.\n};
            }
        }
    } while $ans;

    push @{$CPAN::Config->{urllist}}, @urls;
    # xxx delete or comment these out when you're happy that it works
    print "New set of picks:\n";
    map { print "  $_\n" } @{$CPAN::Config->{urllist}};
}

1;
Commit	Line	Data
5f05dabc	1	package CPAN::Mirrored::By;
	2
	3	sub new {
	4	my($self,@arg) = @_;
	5	bless [@arg], $self;
	6	}
da199366	7	sub continent { shift->[0] }
da199366	8	sub country { shift->[1] }
5f05dabc	9	sub url { shift->[2] }
	10
	11	package CPAN::FirstTime;
	12
	13	use strict;
	14	use ExtUtils::MakeMaker qw(prompt);
05454584	15	use FileHandle ();
09d9d230	16	use File::Basename ();
05454584	17	use File::Path ();
5f05dabc	18	use vars qw($VERSION);
911a92db	19	$VERSION = substr q$Revision: 1.38 $, 10;
5f05dabc	20
	21	=head1 NAME
	22
	23	CPAN::FirstTime - Utility for CPAN::Config file Initialization
	24
	25	=head1 SYNOPSIS
	26
	27	CPAN::FirstTime::init()
	28
	29	=head1 DESCRIPTION
	30
	31	The init routine asks a few questions and writes a CPAN::Config
	32	file. Nothing special.
	33
	34	=cut
	35
	36
	37	sub init {
	38	my($configpm) = @_;
	39	use Config;
f610777f	40	unless ($CPAN::VERSION) {
	41	require CPAN::Nox;
	42	}
5f05dabc	43	eval {require CPAN::Config;};
5f05dabc	44	$CPAN::Config \|\|= {};
da199366	45	local($/) = "\n";
da199366	46	local($\) = "";
13bc20ff	47	local($\|) = 1;
da199366	48
5f05dabc	49	my($ans,$default,$local,$cont,$url,$expected_size);
f610777f	50
da199366	51	#
	52	# Files, directories
	53	#
	54
2e2b7522	55	print qq[
09d9d230	56
	57	CPAN is the world-wide archive of perl resources. It consists of about
	58	100 sites that all replicate the same contents all around the globe.
	59	Many countries have at least one CPAN site already. The resources
	60	found on CPAN are easily accessible with the CPAN.pm module. If you
	61	want to use CPAN.pm, you have to configure it properly.
	62
	63	If you do not want to enter a dialog now, you can answer 'no' to this
	64	question and I\'ll try to autoconfigure. (Note: you can revisit this
	65	dialog anytime later by typing 'o conf init' at the cpan prompt.)
	66
2e2b7522	67	];
09d9d230	68
	69	my $manual_conf =
	70	ExtUtils::MakeMaker::prompt("Are you ready for manual configuration?",
	71	"yes");
	72	my $fastread;
	73	{
	74	local $^W;
	75	if ($manual_conf =~ /^\s*y/i) {
	76	$fastread = 0;
	77	*prompt = \&ExtUtils::MakeMaker::prompt;
	78	} else {
	79	$fastread = 1;
36263cb3	80	$CPAN::Config->{urllist} \|\|= [];
c9d9b473	81	# prototype should match that of &MakeMaker::prompt
c9d9b473	82	*prompt = sub ($;$) {
09d9d230	83	my($q,$a) = @_;
	84	my($ret) = defined $a ? $a : "";
	85	printf qq{%s [%s]\n\n}, $q, $ret;
	86	$ret;
	87	};
	88	}
	89	}
	90	print qq{
	91
	92	The following questions are intended to help you with the
	93	configuration. The CPAN module needs a directory of its own to cache
	94	important index files and maybe keep a temporary mirror of CPAN files.
	95	This may be a site-wide directory or a personal directory.
	96
5f05dabc	97	};
	98
	99	my $cpan_home = $CPAN::Config->{cpan_home} \|\| MM->catdir($ENV{HOME}, ".cpan");
	100	if (-d $cpan_home) {
	101	print qq{
	102
	103	I see you already have a directory
	104	$cpan_home
	105	Shall we use it as the general CPAN build and cache directory?
	106
	107	};
	108	} else {
	109	print qq{
	110
	111	First of all, I\'d like to create this directory. Where?
	112
	113	};
	114	}
	115
	116	$default = $cpan_home;
05454584	117	while ($ans = prompt("CPAN build and cache directory?",$default)) {
36263cb3	118	eval { File::Path::mkpath($ans); }; # dies if it can't
	119	if ($@) {
	120	warn "Couldn't create directory $ans.
	121	Please retry.\n";
	122	next;
	123	}
	124	if (-d $ans && -w _) {
	125	last;
	126	} else {
	127	warn "Couldn't find directory $ans
10b2abe6	128	or directory is not writable. Please retry.\n";
36263cb3	129	}
10b2abe6	130	}
5f05dabc	131	$CPAN::Config->{cpan_home} = $ans;
f610777f	132
5f05dabc	133	print qq{
	134
	135	If you want, I can keep the source files after a build in the cpan
	136	home directory. If you choose so then future builds will take the
	137	files from there. If you don\'t want to keep them, answer 0 to the
	138	next question.
	139
	140	};
	141
	142	$CPAN::Config->{keep_source_where} = MM->catdir($CPAN::Config->{cpan_home},"sources");
	143	$CPAN::Config->{build_dir} = MM->catdir($CPAN::Config->{cpan_home},"build");
	144
da199366	145	#
	146	# Cache size, Index expire
	147	#
	148
5f05dabc	149	print qq{
	150
	151	How big should the disk cache be for keeping the build directories
	152	with all the intermediate files?
	153
	154	};
	155
	156	$default = $CPAN::Config->{build_cache} \|\| 10;
	157	$ans = prompt("Cache size for build directory (in MB)?", $default);
	158	$CPAN::Config->{build_cache} = $ans;
	159
	160	# XXX This the time when we refetch the index files (in days)
	161	$CPAN::Config->{'index_expire'} = 1;
	162
f610777f	163	print qq{
	164
	165	By default, each time the CPAN module is started, cache scanning
	166	is performed to keep the cache size in sync. To prevent from this,
	167	disable the cache scanning with 'never'.
	168
	169	};
	170
	171	$default = $CPAN::Config->{scan_cache} \|\| 'atstart';
	172	do {
	173	$ans = prompt("Perform cache scanning (atstart or never)?", $default);
	174	} while ($ans ne 'atstart' && $ans ne 'never');
	175	$CPAN::Config->{scan_cache} = $ans;
	176
	177	#
	178	# prerequisites_policy
	179	# Do we follow PREREQ_PM?
	180	#
	181	print qq{
	182
	183	The CPAN module can detect when a module that which you are trying to
	184	build depends on prerequisites. If this happens, it can build the
	185	prerequisites for you automatically ('follow'), ask you for
	186	confirmation ('ask'), or just ignore them ('ignore'). Please set your
	187	policy to one of the three values.
	188
	189	};
	190
	191	$default = $CPAN::Config->{prerequisites_policy} \|\| 'follow';
	192	do {
f14b5cec	193	$ans =
	194	prompt("Policy on building prerequisites (follow, ask or ignore)?",
	195	$default);
f610777f	196	} while ($ans ne 'follow' && $ans ne 'ask' && $ans ne 'ignore');
	197	$CPAN::Config->{prerequisites_policy} = $ans;
	198
da199366	199	#
	200	# External programs
	201	#
	202
5f05dabc	203	print qq{
	204
	205	The CPAN module will need a few external programs to work
	206	properly. Please correct me, if I guess the wrong path for a program.
05454584	207	Don\'t panic if you do not have some of them, just press ENTER for
05454584	208	those.
5f05dabc	209
	210	};
	211
f14b5cec	212	my $old_warn = $^W;
f14b5cec	213	local $^W if $^O eq 'MacOS';
55e314ee	214	my(@path) = split /$Config{'path_sep'}/, $ENV{'PATH'};
f14b5cec	215	local $^W = $old_warn;
09d9d230	216	my $progname;
2e2b7522	217	for $progname (qw/gzip tar unzip make lynx ncftpget ncftp ftp/){
f14b5cec	218	if ($^O eq 'MacOS') {
	219	$CPAN::Config->{$progname} = 'not_here';
	220	next;
	221	}
09d9d230	222	my $progcall = $progname;
2e2b7522	223	# we don't need ncftp if we have ncftpget
	224	next if $progname eq "ncftp" && $CPAN::Config->{ncftpget} gt " ";
	225	my $path = $CPAN::Config->{$progname}
	226	\|\| $Config::Config{$progname}
	227	\|\| "";
	228	if (MM->file_name_is_absolute($path)) {
	229	# testing existence is not good enough, some have these exe
	230	# extensions
	231
	232	# warn "Warning: configured $path does not exist\n" unless -e $path;
	233	# $path = "";
	234	} else {
	235	$path = '';
	236	}
	237	unless ($path) {
	238	# e.g. make -> nmake
	239	$progcall = $Config::Config{$progname} if $Config::Config{$progname};
	240	}
09d9d230	241
2e2b7522	242	$path \|\|= find_exe($progcall,[@path]);
	243	warn "Warning: $progcall not found in PATH\n" unless
	244	$path; # not -e $path, because find_exe already checked that
	245	$ans = prompt("Where is your $progname program?",$path) \|\| $path;
	246	$CPAN::Config->{$progname} = $ans;
5f05dabc	247	}
	248	my $path = $CPAN::Config->{'pager'} \|\|
	249	$ENV{PAGER} \|\| find_exe("less",[@path]) \|\|
f14b5cec	250	find_exe("more",[@path]) \|\| ($^O eq 'MacOS' ? $ENV{EDITOR} : 0 )
f14b5cec	251	\|\| "more";
55e314ee	252	$ans = prompt("What is your favorite pager program?",$path);
5f05dabc	253	$CPAN::Config->{'pager'} = $ans;
55e314ee	254	$path = $CPAN::Config->{'shell'};
	255	if (MM->file_name_is_absolute($path)) {
	256	warn "Warning: configured $path does not exist\n" unless -e $path;
	257	$path = "";
	258	}
	259	$path \|\|= $ENV{SHELL};
f14b5cec	260	if ($^O eq 'MacOS') {
	261	$CPAN::Config->{'shell'} = 'not_here';
	262	} else {
	263	$path =~ s,\\,/,g if $^O eq 'os2'; # Cosmetic only
	264	$ans = prompt("What is your favorite shell?",$path);
	265	$CPAN::Config->{'shell'} = $ans;
	266	}
da199366	267
	268	#
	269	# Arguments to make etc.
	270	#
	271
5f05dabc	272	print qq{
5f05dabc	273
da199366	274	Every Makefile.PL is run by perl in a separate process. Likewise we
5f05dabc	275	run \'make\' and \'make install\' in processes. If you have any parameters
	276	\(e.g. PREFIX, INSTALLPRIVLIB, UNINST or the like\) you want to pass to
	277	the calls, please specify them here.
	278
05454584	279	If you don\'t understand this question, just press ENTER.
05454584	280
5f05dabc	281	};
	282
	283	$default = $CPAN::Config->{makepl_arg} \|\| "";
	284	$CPAN::Config->{makepl_arg} =
	285	prompt("Parameters for the 'perl Makefile.PL' command?",$default);
	286	$default = $CPAN::Config->{make_arg} \|\| "";
	287	$CPAN::Config->{make_arg} = prompt("Parameters for the 'make' command?",$default);
	288
	289	$default = $CPAN::Config->{make_install_arg} \|\| $CPAN::Config->{make_arg} \|\| "";
	290	$CPAN::Config->{make_install_arg} =
	291	prompt("Parameters for the 'make install' command?",$default);
	292
da199366	293	#
	294	# Alarm period
	295	#
	296
10b2abe6	297	print qq{
	298
	299	Sometimes you may wish to leave the processes run by CPAN alone
	300	without caring about them. As sometimes the Makefile.PL contains
	301	question you\'re expected to answer, you can set a timer that will
	302	kill a 'perl Makefile.PL' process after the specified time in seconds.
	303
e50380aa	304	If you set this value to 0, these processes will wait forever. This is
e50380aa	305	the default and recommended setting.
10b2abe6	306
	307	};
	308
	309	$default = $CPAN::Config->{inactivity_timeout} \|\| 0;
	310	$CPAN::Config->{inactivity_timeout} =
09d9d230	311	prompt("Timeout for inactivity during Makefile.PL?",$default);
10b2abe6	312
09d9d230	313	# Proxies
da199366	314
09d9d230	315	print qq{
10b2abe6	316
09d9d230	317	If you\'re accessing the net via proxies, you can specify them in the
	318	CPAN configuration or via environment variables. The variable in
	319	the \$CPAN::Config takes precedence.
5f05dabc	320
05454584	321	};
09d9d230	322
	323	for (qw/ftp_proxy http_proxy no_proxy/) {
	324	$default = $CPAN::Config->{$_} \|\| $ENV{$_};
	325	$CPAN::Config->{$_} = prompt("Your $_?",$default);
5f05dabc	326	}
5f05dabc	327
09d9d230	328	#
	329	# MIRRORED.BY
	330	#
	331
	332	conf_sites() unless $fastread;
	333
d4fd5c69	334	unless (@{$CPAN::Config->{'wait_list'}\|\|[]}) {
d4fd5c69	335	print qq{
da199366	336
05454584	337	WAIT support is available as a Plugin. You need the CPAN::WAIT module
	338	to actually use it. But we need to know your favorite WAIT server. If
	339	you don\'t know a WAIT server near you, just press ENTER.
	340
	341	};
d4fd5c69	342	$default = "wait://ls6.informatik.uni-dortmund.de:1404";
	343	$ans = prompt("Your favorite WAIT server?\n ",$default);
	344	push @{$CPAN::Config->{'wait_list'}}, $ans;
	345	}
05454584	346
e50380aa	347	# We don't ask that now, it will be noticed in time, won't it?
5f05dabc	348	$CPAN::Config->{'inhibit_startup_message'} = 0;
e50380aa	349	$CPAN::Config->{'getcwd'} = 'cwd';
5f05dabc	350
	351	print "\n\n";
	352	CPAN::Config->commit($configpm);
	353	}
	354
09d9d230	355	sub conf_sites {
	356	my $m = 'MIRRORED.BY';
	357	my $mby = MM->catfile($CPAN::Config->{keep_source_where},$m);
	358	File::Path::mkpath(File::Basename::dirname($mby));
	359	if (-f $mby && -f $m && -M $m < -M $mby) {
	360	require File::Copy;
	361	File::Copy::copy($m,$mby) or die "Could not update $mby: $!";
	362	}
911a92db	363	my $loopcount = 0;
36263cb3	364	while () {
	365	if ( ! -f $mby ){
	366	print qq{You have no $mby
09d9d230	367	I\'m trying to fetch one
09d9d230	368	};
36263cb3	369	$mby = CPAN::FTP->localize($m,$mby,3);
911a92db	370	} elsif (-M $mby > 60 && $loopcount == 0) {
911a92db	371	print qq{Your $mby is older than 60 days,
09d9d230	372	I\'m trying to fetch one
09d9d230	373	};
36263cb3	374	$mby = CPAN::FTP->localize($m,$mby,3);
911a92db	375	$loopcount++;
36263cb3	376	} elsif (-s $mby == 0) {
	377	print qq{You have an empty $mby,
	378	I\'m trying to fetch one
	379	};
	380	$mby = CPAN::FTP->localize($m,$mby,3);
	381	} else {
	382	last;
	383	}
09d9d230	384	}
	385	read_mirrored_by($mby);
	386	}
	387
5f05dabc	388	sub find_exe {
5f05dabc	389	my($exe,$path) = @_;
55e314ee	390	my($dir);
55e314ee	391	#warn "in find_exe exe[$exe] path[@$path]";
5f05dabc	392	for $dir (@$path) {
55e314ee	393	my $abs = MM->catfile($dir,$exe);
13bc20ff	394	if (($abs = MM->maybe_command($abs))) {
5f05dabc	395	return $abs;
	396	}
	397	}
	398	}
	399
f610777f	400	sub picklist {
	401	my($items,$prompt,$default,$require_nonempty,$empty_warning)=@_;
	402	$default \|\|= '';
	403
	404	my ($item, $i);
	405	for $item (@$items) {
	406	printf "(%d) %s\n", ++$i, $item;
	407	}
	408
	409	my @nums;
	410	while (1) {
	411	my $num = prompt($prompt,$default);
	412	@nums = split (' ', $num);
	413	(warn "invalid items entered, try again\n"), next
	414	if grep (/\D/ \|\| $_ < 1 \|\| $_ > $i, @nums);
	415	if ($require_nonempty) {
	416	(warn "$empty_warning\n"), next
	417	unless @nums;
	418	}
	419	last;
	420	}
	421	print "\n";
	422	for (@nums) { $_-- }
	423	@{$items}[@nums];
	424	}
	425
5f05dabc	426	sub read_mirrored_by {
	427	my($local) = @_;
	428	my(%all,$url,$expected_size,$default,$ans,$host,$dst,$country,$continent,@location);
05454584	429	my $fh = FileHandle->new;
05454584	430	$fh->open($local) or die "Couldn't open $local: $!";
f14b5cec	431	local $/ = "\012";
05454584	432	while (<$fh>) {
5f05dabc	433	($host) = /^([\w\.\-]+)/ unless defined $host;
	434	next unless defined $host;
	435	next unless /\s+dst_(dst\|location)/;
	436	/location\s+=\s+\"([^\"]+)/ and @location = (split /\s,\s/, $1) and
	437	($continent, $country) = @location[-1,-2];
	438	$continent =~ s/\s\(.*//;
f610777f	439	$continent =~ s/\W+$//; # if Jarkko doesn't know latitude/longitude
5f05dabc	440	/dst_dst\s+=\s+\"([^\"]+)/ and $dst = $1;
	441	next unless $host && $dst && $continent && $country;
	442	$all{$continent}{$country}{$dst} = CPAN::Mirrored::By->new($continent,$country,$dst);
	443	undef $host;
	444	$dst=$continent=$country="";
	445	}
05454584	446	$fh->close;
5f05dabc	447	$CPAN::Config->{urllist} \|\|= [];
f610777f	448	my(@previous_urls);
f610777f	449	if (@previous_urls = @{$CPAN::Config->{urllist}}) {
5f05dabc	450	$CPAN::Config->{urllist} = [];
5f05dabc	451	}
f610777f	452
5f05dabc	453	print qq{
5f05dabc	454
f610777f	455	Now we need to know where your favorite CPAN sites are located. Push
5f05dabc	456	a few sites onto the array (just in case the first on the array won\'t
	457	work). If you are mirroring CPAN to your local workstation, specify a
	458	file: URL.
	459
f610777f	460	First, pick a nearby continent and country (you can pick several of
	461	each, separated by spaces, or none if you just want to keep your
	462	existing selections). Then, you will be presented with a list of URLs
	463	of CPAN mirrors in the countries you selected, along with previously
	464	selected URLs. Select some of those URLs, or just keep the old list.
	465	Finally, you will be prompted for any extra URLs -- file:, ftp:, or
	466	http: -- that host a CPAN mirror.
5f05dabc	467
	468	};
	469
f610777f	470	my (@cont, $cont, %cont, @countries, @urls, %seen);
	471	my $no_previous_warn =
	472	"Sorry! since you don't have any existing picks, you must make a\n" .
	473	"geographic selection.";
	474	@cont = picklist([sort keys %all],
	475	"Select your continent (or several nearby continents)",
	476	'',
	477	! @previous_urls,
	478	$no_previous_warn);
	479
	480
	481	foreach $cont (@cont) {
	482	my @c = sort keys %{$all{$cont}};
	483	@cont{@c} = map ($cont, 0..$#c);
	484	@c = map ("$_ ($cont)", @c) if @cont > 1;
	485	push (@countries, @c);
5f05dabc	486	}
f610777f	487
	488	if (@countries) {
	489	@countries = picklist (\@countries,
	490	"Select your country (or several nearby countries)",
	491	'',
	492	! @previous_urls,
	493	$no_previous_warn);
	494	%seen = map (($_ => 1), @previous_urls);
	495	# hmmm, should take list of defaults from CPAN::Config->{'urllist'}...
	496	foreach $country (@countries) {
	497	(my $bare_country = $country) =~ s/ \(.*\)//;
	498	my @u = sort keys %{$all{$cont{$bare_country}}{$bare_country}};
	499	@u = grep (! $seen{$_}, @u);
	500	@u = map ("$_ ($bare_country)", @u)
	501	if @countries > 1;
	502	push (@urls, @u);
	503	}
	504	}
	505	push (@urls, map ("$_ (previous pick)", @previous_urls));
	506	my $prompt = "Select as many URLs as you like";
	507	if (@previous_urls) {
	508	$default = join (' ', ((scalar @urls) - (scalar @previous_urls) + 1) ..
	509	(scalar @urls));
	510	$prompt .= "\n(or just hit RETURN to keep your previous picks)";
	511	}
	512
	513	@urls = picklist (\@urls, $prompt, $default);
	514	foreach (@urls) { s/ \(.*\)//; }
	515	%seen = map (($_ => 1), @urls);
	516
	517	do {
	518	$ans = prompt ("Enter another URL or RETURN to quit:", "");
	519
	520	if ($ans) {
	521	$ans =~ s\|/?$\|/\|; # has to end with one slash
	522	$ans = "file:$ans" unless $ans =~ /:/; # without a scheme is a file:
	523	if ($ans =~ /^\w+:\/./) {
	524	push @urls, $ans
	525	unless $seen{$ans};
	526	}
	527	else {
	528	print qq{"$ans" doesn\'t look like an URL at first sight.
	529	I\'ll ignore it for now. You can add it to $INC{'CPAN/MyConfig.pm'}
	530	later if you\'re sure it\'s right.\n};
	531	}
	532	}
	533	} while $ans;
	534
	535	push @{$CPAN::Config->{urllist}}, @urls;
	536	# xxx delete or comment these out when you're happy that it works
	537	print "New set of picks:\n";
	538	map { print " $_\n" } @{$CPAN::Config->{urllist}};
5f05dabc	539	}
	540
	541	1;