[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: 1.40 $, 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} || 'ask';
    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;
  local $^T = time;
  while ($mby) {
    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);
  bring_your_own();
}

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 $local = shift or return;
    my(%all,$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/ \(.*\)//; }
    push @{$CPAN::Config->{urllist}}, @urls;
}

sub bring_your_own {
    my %seen = map (($_ => 1), @{$CPAN::Config->{urllist}});
    my($ans,@urls);
    do {
	my $prompt = "Enter another URL or RETURN to quit:";
	unless (%seen) {
	    $prompt = qq{CPAN.pm needs at least one URL where it can fetch CPAN files from.

Please enter your CPAN site:};
	}
        $ans = prompt ($prompt, "");

        if ($ans) {
            $ans =~ s|/?\z|/|; # 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 || !%seen;

    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);
de34a54b	19	$VERSION = substr q$Revision: 1.40 $, 10;
5f05dabc	20
	21	=head1 NAME
	22
	23	CPAN::FirstTime - Utility for CPAN::Config file Initialization
	24
	25	=head1 SYNOPSIS
	26
	27	CPAN::FirstTime::init()
	28
	29	=head1 DESCRIPTION
	30
	31	The init routine asks a few questions and writes a CPAN::Config
	32	file. Nothing special.
	33
	34	=cut
	35
	36
	37	sub init {
	38	my($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
de34a54b	152	with all the intermediate files\?
5f05dabc	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
de34a54b	191	$default = $CPAN::Config->{prerequisites_policy} \|\| 'ask';
f610777f	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;
de34a54b	364	local $^T = time;
de34a54b	365	while ($mby) {
36263cb3	366	if ( ! -f $mby ){
36263cb3	367	print qq{You have no $mby
09d9d230	368	I\'m trying to fetch one
09d9d230	369	};
36263cb3	370	$mby = CPAN::FTP->localize($m,$mby,3);
911a92db	371	} elsif (-M $mby > 60 && $loopcount == 0) {
911a92db	372	print qq{Your $mby is older than 60 days,
09d9d230	373	I\'m trying to fetch one
09d9d230	374	};
36263cb3	375	$mby = CPAN::FTP->localize($m,$mby,3);
911a92db	376	$loopcount++;
36263cb3	377	} elsif (-s $mby == 0) {
	378	print qq{You have an empty $mby,
	379	I\'m trying to fetch one
	380	};
	381	$mby = CPAN::FTP->localize($m,$mby,3);
	382	} else {
	383	last;
	384	}
09d9d230	385	}
09d9d230	386	read_mirrored_by($mby);
de34a54b	387	bring_your_own();
09d9d230	388	}
09d9d230	389
5f05dabc	390	sub find_exe {
5f05dabc	391	my($exe,$path) = @_;
55e314ee	392	my($dir);
55e314ee	393	#warn "in find_exe exe[$exe] path[@$path]";
5f05dabc	394	for $dir (@$path) {
55e314ee	395	my $abs = MM->catfile($dir,$exe);
13bc20ff	396	if (($abs = MM->maybe_command($abs))) {
5f05dabc	397	return $abs;
	398	}
	399	}
	400	}
	401
f610777f	402	sub picklist {
	403	my($items,$prompt,$default,$require_nonempty,$empty_warning)=@_;
	404	$default \|\|= '';
	405
	406	my ($item, $i);
	407	for $item (@$items) {
	408	printf "(%d) %s\n", ++$i, $item;
	409	}
	410
	411	my @nums;
	412	while (1) {
	413	my $num = prompt($prompt,$default);
	414	@nums = split (' ', $num);
	415	(warn "invalid items entered, try again\n"), next
	416	if grep (/\D/ \|\| $_ < 1 \|\| $_ > $i, @nums);
	417	if ($require_nonempty) {
	418	(warn "$empty_warning\n"), next
	419	unless @nums;
	420	}
	421	last;
	422	}
	423	print "\n";
	424	for (@nums) { $_-- }
	425	@{$items}[@nums];
	426	}
	427
5f05dabc	428	sub read_mirrored_by {
de34a54b	429	my $local = shift or return;
5f05dabc	430	my(%all,$url,$expected_size,$default,$ans,$host,$dst,$country,$continent,@location);
05454584	431	my $fh = FileHandle->new;
05454584	432	$fh->open($local) or die "Couldn't open $local: $!";
f14b5cec	433	local $/ = "\012";
05454584	434	while (<$fh>) {
5f05dabc	435	($host) = /^([\w\.\-]+)/ unless defined $host;
	436	next unless defined $host;
	437	next unless /\s+dst_(dst\|location)/;
	438	/location\s+=\s+\"([^\"]+)/ and @location = (split /\s,\s/, $1) and
	439	($continent, $country) = @location[-1,-2];
	440	$continent =~ s/\s\(.*//;
f610777f	441	$continent =~ s/\W+$//; # if Jarkko doesn't know latitude/longitude
5f05dabc	442	/dst_dst\s+=\s+\"([^\"]+)/ and $dst = $1;
	443	next unless $host && $dst && $continent && $country;
	444	$all{$continent}{$country}{$dst} = CPAN::Mirrored::By->new($continent,$country,$dst);
	445	undef $host;
	446	$dst=$continent=$country="";
	447	}
05454584	448	$fh->close;
5f05dabc	449	$CPAN::Config->{urllist} \|\|= [];
f610777f	450	my(@previous_urls);
f610777f	451	if (@previous_urls = @{$CPAN::Config->{urllist}}) {
5f05dabc	452	$CPAN::Config->{urllist} = [];
5f05dabc	453	}
f610777f	454
5f05dabc	455	print qq{
5f05dabc	456
f610777f	457	Now we need to know where your favorite CPAN sites are located. Push
5f05dabc	458	a few sites onto the array (just in case the first on the array won\'t
	459	work). If you are mirroring CPAN to your local workstation, specify a
	460	file: URL.
	461
f610777f	462	First, pick a nearby continent and country (you can pick several of
	463	each, separated by spaces, or none if you just want to keep your
	464	existing selections). Then, you will be presented with a list of URLs
	465	of CPAN mirrors in the countries you selected, along with previously
	466	selected URLs. Select some of those URLs, or just keep the old list.
	467	Finally, you will be prompted for any extra URLs -- file:, ftp:, or
	468	http: -- that host a CPAN mirror.
5f05dabc	469
	470	};
	471
f610777f	472	my (@cont, $cont, %cont, @countries, @urls, %seen);
	473	my $no_previous_warn =
	474	"Sorry! since you don't have any existing picks, you must make a\n" .
	475	"geographic selection.";
	476	@cont = picklist([sort keys %all],
	477	"Select your continent (or several nearby continents)",
	478	'',
	479	! @previous_urls,
	480	$no_previous_warn);
	481
	482
	483	foreach $cont (@cont) {
	484	my @c = sort keys %{$all{$cont}};
	485	@cont{@c} = map ($cont, 0..$#c);
	486	@c = map ("$_ ($cont)", @c) if @cont > 1;
	487	push (@countries, @c);
5f05dabc	488	}
f610777f	489
	490	if (@countries) {
	491	@countries = picklist (\@countries,
	492	"Select your country (or several nearby countries)",
	493	'',
	494	! @previous_urls,
	495	$no_previous_warn);
	496	%seen = map (($_ => 1), @previous_urls);
	497	# hmmm, should take list of defaults from CPAN::Config->{'urllist'}...
	498	foreach $country (@countries) {
	499	(my $bare_country = $country) =~ s/ \(.*\)//;
	500	my @u = sort keys %{$all{$cont{$bare_country}}{$bare_country}};
	501	@u = grep (! $seen{$_}, @u);
	502	@u = map ("$_ ($bare_country)", @u)
	503	if @countries > 1;
	504	push (@urls, @u);
	505	}
	506	}
	507	push (@urls, map ("$_ (previous pick)", @previous_urls));
	508	my $prompt = "Select as many URLs as you like";
	509	if (@previous_urls) {
	510	$default = join (' ', ((scalar @urls) - (scalar @previous_urls) + 1) ..
	511	(scalar @urls));
	512	$prompt .= "\n(or just hit RETURN to keep your previous picks)";
	513	}
	514
	515	@urls = picklist (\@urls, $prompt, $default);
	516	foreach (@urls) { s/ \(.*\)//; }
de34a54b	517	push @{$CPAN::Config->{urllist}}, @urls;
de34a54b	518	}
f610777f	519
de34a54b	520	sub bring_your_own {
	521	my %seen = map (($_ => 1), @{$CPAN::Config->{urllist}});
	522	my($ans,@urls);
f610777f	523	do {
de34a54b	524	my $prompt = "Enter another URL or RETURN to quit:";
	525	unless (%seen) {
	526	$prompt = qq{CPAN.pm needs at least one URL where it can fetch CPAN files from.
	527
	528	Please enter your CPAN site:};
	529	}
	530	$ans = prompt ($prompt, "");
f610777f	531
f610777f	532	if ($ans) {
de34a54b	533	$ans =~ s\|/?\z\|/\|; # has to end with one slash
f610777f	534	$ans = "file:$ans" unless $ans =~ /:/; # without a scheme is a file:
f610777f	535	if ($ans =~ /^\w+:\/./) {
de34a54b	536	push @urls, $ans unless $seen{$ans}++;
de34a54b	537	} else {
f610777f	538	print qq{"$ans" doesn\'t look like an URL at first sight.
	539	I\'ll ignore it for now. You can add it to $INC{'CPAN/MyConfig.pm'}
	540	later if you\'re sure it\'s right.\n};
	541	}
	542	}
de34a54b	543	} while $ans \|\| !%seen;
f610777f	544
	545	push @{$CPAN::Config->{urllist}}, @urls;
	546	# xxx delete or comment these out when you're happy that it works
	547	print "New set of picks:\n";
	548	map { print " $_\n" } @{$CPAN::Config->{urllist}};
5f05dabc	549	}
	550
	551	1;