lib/perl5/5.8.8/CPAN/FirstTime.pm

   1 # -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
   2 package CPAN::Mirrored::By;
   3
   4 sub new {
   5     my($self,@arg) = @_;
   6     bless [@arg], $self;
   7 }
   8 sub continent { shift->[0] }
   9 sub country { shift->[1] }
  10 sub url { shift->[2] }
  11
  12 package CPAN::FirstTime;
  13
  14 use strict;
  15 use ExtUtils::MakeMaker qw(prompt);
  16 use FileHandle ();
  17 use File::Basename ();
  18 use File::Path ();
  19 use File::Spec;
  20 use vars qw($VERSION);
  21 $VERSION = substr q$Revision: 1.60 $, 10;
  22
  23 =head1 NAME
  24
  25 CPAN::FirstTime - Utility for CPAN::Config file Initialization
  26
  27 =head1 SYNOPSIS
  28
  29 CPAN::FirstTime::init()
  30
  31 =head1 DESCRIPTION
  32
  33 The init routine asks a few questions and writes a CPAN::Config
  34 file. Nothing special.
  35
  36 =cut
  37
  38
  39 sub init {
  40     my($configpm) = @_;
  41     use Config;
  42     unless ($CPAN::VERSION) {
  43         require CPAN::Nox;
  44     }
  45     eval {require CPAN::Config;};
  46     $CPAN::Config ||= {};
  47     local($/) = "\n";
  48     local($\) = "";
  49     local($|) = 1;
  50
  51     my($ans,$default);
  52
  53     #
  54     # Files, directories
  55     #
  56
  57     print qq[
  58
  59 CPAN is the world-wide archive of perl resources. It consists of about
  60 100 sites that all replicate the same contents all around the globe.
  61 Many countries have at least one CPAN site already. The resources
  62 found on CPAN are easily accessible with the CPAN.pm module. If you
  63 want to use CPAN.pm, you have to configure it properly.
  64
  65 If you do not want to enter a dialog now, you can answer 'no' to this
  66 question and I\'ll try to autoconfigure. (Note: you can revisit this
  67 dialog anytime later by typing 'o conf init' at the cpan prompt.)
  68
  69 ];
  70
  71     my $manual_conf =
  72         ExtUtils::MakeMaker::prompt("Are you ready for manual configuration?",
  73                                     "yes");
  74     my $fastread;
  75     {
  76       local $^W;
  77       if ($manual_conf =~ /^\s*y/i) {
  78         $fastread = 0;
  79         *prompt = \&ExtUtils::MakeMaker::prompt;
  80       } else {
  81         $fastread = 1;
  82         $CPAN::Config->{urllist} ||= [];
  83         # prototype should match that of &MakeMaker::prompt
  84         *prompt = sub ($;$) {
  85           my($q,$a) = @_;
  86           my($ret) = defined $a ? $a : "";
  87           printf qq{%s [%s]\n\n}, $q, $ret;
  88           $ret;
  89         };
  90       }
  91     }
  92     print qq{
  93
  94 The following questions are intended to help you with the
  95 configuration. The CPAN module needs a directory of its own to cache
  96 important index files and maybe keep a temporary mirror of CPAN files.
  97 This may be a site-wide directory or a personal directory.
  98
  99 };
 100
 101     my $cpan_home = $CPAN::Config->{cpan_home} || File::Spec->catdir($ENV{HOME}, ".cpan");
 102     if (-d $cpan_home) {
 103         print qq{
 104
 105 I see you already have a  directory
 106     $cpan_home
 107 Shall we use it as the general CPAN build and cache directory?
 108
 109 };
 110     } else {
 111         print qq{
 112
 113 First of all, I\'d like to create this directory. Where?
 114
 115 };
 116     }
 117
 118     $default = $cpan_home;
 119     while ($ans = prompt("CPAN build and cache directory?",$default)) {
 120       unless (File::Spec->file_name_is_absolute($ans)) {
 121         require Cwd;
 122         my $cwd = Cwd::cwd();
 123         my $absans = File::Spec->catdir($cwd,$ans);
 124         warn "The path '$ans' is not an absolute path. Please specify an absolute path\n";
 125         $default = $absans;
 126         next;
 127       }
 128       eval { File::Path::mkpath($ans); }; # dies if it can't
 129       if ($@) {
 130         warn "Couldn't create directory $ans.
 131 Please retry.\n";
 132         next;
 133       }
 134       if (-d $ans && -w _) {
 135         last;
 136       } else {
 137         warn "Couldn't find directory $ans
 138   or directory is not writable. Please retry.\n";
 139       }
 140     }
 141     $CPAN::Config->{cpan_home} = $ans;
 142
 143     print qq{
 144
 145 If you want, I can keep the source files after a build in the cpan
 146 home directory. If you choose so then future builds will take the
 147 files from there. If you don\'t want to keep them, answer 0 to the
 148 next question.
 149
 150 };
 151
 152     $CPAN::Config->{keep_source_where} = File::Spec->catdir($CPAN::Config->{cpan_home},"sources");
 153     $CPAN::Config->{build_dir} = File::Spec->catdir($CPAN::Config->{cpan_home},"build");
 154
 155     #
 156     # Cache size, Index expire
 157     #
 158
 159     print qq{
 160
 161 How big should the disk cache be for keeping the build directories
 162 with all the intermediate files\?
 163
 164 };
 165
 166     $default = $CPAN::Config->{build_cache} || 10;
 167     $ans = prompt("Cache size for build directory (in MB)?", $default);
 168     $CPAN::Config->{build_cache} = $ans;
 169
 170     # XXX This the time when we refetch the index files (in days)
 171     $CPAN::Config->{'index_expire'} = 1;
 172
 173     print qq{
 174
 175 By default, each time the CPAN module is started, cache scanning
 176 is performed to keep the cache size in sync. To prevent from this,
 177 disable the cache scanning with 'never'.
 178
 179 };
 180
 181     $default = $CPAN::Config->{scan_cache} || 'atstart';
 182     do {
 183         $ans = prompt("Perform cache scanning (atstart or never)?", $default);
 184     } while ($ans ne 'atstart' && $ans ne 'never');
 185     $CPAN::Config->{scan_cache} = $ans;
 186
 187     #
 188     # cache_metadata
 189     #
 190     print qq{
 191
 192 To considerably speed up the initial CPAN shell startup, it is
 193 possible to use Storable to create a cache of metadata. If Storable
 194 is not available, the normal index mechanism will be used.
 195
 196 };
 197
 198     defined($default = $CPAN::Config->{cache_metadata}) or $default = 1;
 199     do {
 200         $ans = prompt("Cache metadata (yes/no)?", ($default ? 'yes' : 'no'));
 201     } while ($ans !~ /^\s*[yn]/i);
 202     $CPAN::Config->{cache_metadata} = ($ans =~ /^\s*y/i ? 1 : 0);
 203
 204     #
 205     # term_is_latin
 206     #
 207     print qq{
 208
 209 The next option deals with the charset your terminal supports. In
 210 general CPAN is English speaking territory, thus the charset does not
 211 matter much, but some of the aliens out there who upload their
 212 software to CPAN bear names that are outside the ASCII range. If your
 213 terminal supports UTF-8, you say no to the next question, if it
 214 supports ISO-8859-1 (also known as LATIN1) then you say yes, and if it
 215 supports neither nor, your answer does not matter, you will not be
 216 able to read the names of some authors anyway. If you answer no, names
 217 will be output in UTF-8.
 218
 219 };
 220
 221     defined($default = $CPAN::Config->{term_is_latin}) or $default = 1;
 222     do {
 223         $ans = prompt("Your terminal expects ISO-8859-1 (yes/no)?",
 224                       ($default ? 'yes' : 'no'));
 225     } while ($ans !~ /^\s*[yn]/i);
 226     $CPAN::Config->{term_is_latin} = ($ans =~ /^\s*y/i ? 1 : 0);
 227
 228     #
 229     # save history in file histfile
 230     #
 231     print qq{
 232
 233 If you have one of the readline packages (Term::ReadLine::Perl,
 234 Term::ReadLine::Gnu, possibly others) installed, the interactive CPAN
 235 shell will have history support. The next two questions deal with the
 236 filename of the history file and with its size. If you do not want to
 237 set this variable, please hit SPACE RETURN to the following question.
 238
 239 };
 240
 241     defined($default = $CPAN::Config->{histfile}) or
 242         $default = File::Spec->catfile($CPAN::Config->{cpan_home},"histfile");
 243     $ans = prompt("File to save your history?", $default);
 244     $ans =~ s/^\s+//;
 245     $ans =~ s/\s+\z//;
 246     $CPAN::Config->{histfile} = $ans;
 247
 248     if ($CPAN::Config->{histfile}) {
 249       defined($default = $CPAN::Config->{histsize}) or $default = 100;
 250       $ans = prompt("Number of lines to save?", $default);
 251       $CPAN::Config->{histsize} = $ans;
 252     }
 253
 254     #
 255     # prerequisites_policy
 256     # Do we follow PREREQ_PM?
 257     #
 258     print qq{
 259
 260 The CPAN module can detect when a module that which you are trying to
 261 build depends on prerequisites. If this happens, it can build the
 262 prerequisites for you automatically ('follow'), ask you for
 263 confirmation ('ask'), or just ignore them ('ignore'). Please set your
 264 policy to one of the three values.
 265
 266 };
 267
 268     $default = $CPAN::Config->{prerequisites_policy} || 'ask';
 269     do {
 270       $ans =
 271           prompt("Policy on building prerequisites (follow, ask or ignore)?",
 272                  $default);
 273     } while ($ans ne 'follow' && $ans ne 'ask' && $ans ne 'ignore');
 274     $CPAN::Config->{prerequisites_policy} = $ans;
 275
 276     #
 277     # External programs
 278     #
 279
 280     print qq{
 281
 282 The CPAN module will need a few external programs to work properly.
 283 Please correct me, if I guess the wrong path for a program. Don\'t
 284 panic if you do not have some of them, just press ENTER for those. To
 285 disable the use of a download program, you can type a space followed
 286 by ENTER.
 287
 288 };
 289
 290     my $old_warn = $^W;
 291     local $^W if $^O eq 'MacOS';
 292     my(@path) = split /$Config{'path_sep'}/, $ENV{'PATH'};
 293     local $^W = $old_warn;
 294     my $progname;
 295     for $progname (qw/gzip tar unzip make lynx wget ncftpget ncftp ftp gpg/){
 296       if ($^O eq 'MacOS') {
 297           $CPAN::Config->{$progname} = 'not_here';
 298           next;
 299       }
 300       my $progcall = $progname;
 301       # we don't need ncftp if we have ncftpget
 302       next if $progname eq "ncftp" && $CPAN::Config->{ncftpget} gt " ";
 303       my $path = $CPAN::Config->{$progname}
 304           || $Config::Config{$progname}
 305               || "";
 306       if (File::Spec->file_name_is_absolute($path)) {
 307         # testing existence is not good enough, some have these exe
 308         # extensions
 309
 310         # warn "Warning: configured $path does not exist\n" unless -e $path;
 311         # $path = "";
 312       } else {
 313         $path = '';
 314       }
 315       unless ($path) {
 316         # e.g. make -> nmake
 317         $progcall = $Config::Config{$progname} if $Config::Config{$progname};
 318       }
 319
 320       $path ||= find_exe($progcall,[@path]);
 321       warn "Warning: $progcall not found in PATH\n" unless
 322           $path; # not -e $path, because find_exe already checked that
 323       $ans = prompt("Where is your $progname program?",$path) || $path;
 324       $CPAN::Config->{$progname} = $ans;
 325     }
 326     my $path = $CPAN::Config->{'pager'} ||
 327         $ENV{PAGER} || find_exe("less",[@path]) ||
 328             find_exe("more",[@path]) || ($^O eq 'MacOS' ? $ENV{EDITOR} : 0 )
 329             || "more";
 330     $ans = prompt("What is your favorite pager program?",$path);
 331     $CPAN::Config->{'pager'} = $ans;
 332     $path = $CPAN::Config->{'shell'};
 333     if (File::Spec->file_name_is_absolute($path)) {
 334         warn "Warning: configured $path does not exist\n" unless -e $path;
 335         $path = "";
 336     }
 337     $path ||= $ENV{SHELL};
 338     if ($^O eq 'MacOS') {
 339         $CPAN::Config->{'shell'} = 'not_here';
 340     } else {
 341         $path =~ s,\\,/,g if $^O eq 'os2';      # Cosmetic only
 342         $ans = prompt("What is your favorite shell?",$path);
 343         $CPAN::Config->{'shell'} = $ans;
 344     }
 345
 346     #
 347     # Arguments to make etc.
 348     #
 349
 350     print qq{
 351
 352 Every Makefile.PL is run by perl in a separate process. Likewise we
 353 run \'make\' and \'make install\' in processes. If you have any
 354 parameters \(e.g. PREFIX, LIB, UNINST or the like\) you want to pass
 355 to the calls, please specify them here.
 356
 357 If you don\'t understand this question, just press ENTER.
 358
 359 };
 360
 361     $default = $CPAN::Config->{makepl_arg} || "";
 362     $CPAN::Config->{makepl_arg} =
 363         prompt("Parameters for the 'perl Makefile.PL' command?
 364 Typical frequently used settings:
 365
 366     PREFIX=~/perl       non-root users (please see manual for more hints)
 367
 368 Your choice: ",$default);
 369     $default = $CPAN::Config->{make_arg} || "";
 370     $CPAN::Config->{make_arg} = prompt("Parameters for the 'make' command?
 371 Typical frequently used setting:
 372
 373     -j3              dual processor system
 374
 375 Your choice: ",$default);
 376
 377     $default = $CPAN::Config->{make_install_arg} || $CPAN::Config->{make_arg} || "";
 378     $CPAN::Config->{make_install_arg} =
 379         prompt("Parameters for the 'make install' command?
 380 Typical frequently used setting:
 381
 382     UNINST=1         to always uninstall potentially conflicting files
 383
 384 Your choice: ",$default);
 385
 386     #
 387     # Alarm period
 388     #
 389
 390     print qq{
 391
 392 Sometimes you may wish to leave the processes run by CPAN alone
 393 without caring about them. As sometimes the Makefile.PL contains
 394 question you\'re expected to answer, you can set a timer that will
 395 kill a 'perl Makefile.PL' process after the specified time in seconds.
 396
 397 If you set this value to 0, these processes will wait forever. This is
 398 the default and recommended setting.
 399
 400 };
 401
 402     $default = $CPAN::Config->{inactivity_timeout} || 0;
 403     $CPAN::Config->{inactivity_timeout} =
 404         prompt("Timeout for inactivity during Makefile.PL?",$default);
 405
 406     # Proxies
 407
 408     print qq{
 409
 410 If you\'re accessing the net via proxies, you can specify them in the
 411 CPAN configuration or via environment variables. The variable in
 412 the \$CPAN::Config takes precedence.
 413
 414 };
 415
 416     for (qw/ftp_proxy http_proxy no_proxy/) {
 417         $default = $CPAN::Config->{$_} || $ENV{$_};
 418         $CPAN::Config->{$_} = prompt("Your $_?",$default);
 419     }
 420
 421     if ($CPAN::Config->{ftp_proxy} ||
 422         $CPAN::Config->{http_proxy}) {
 423         $default = $CPAN::Config->{proxy_user} || $CPAN::LWP::UserAgent::USER;
 424         print qq{
 425
 426 If your proxy is an authenticating proxy, you can store your username
 427 permanently. If you do not want that, just press RETURN. You will then
 428 be asked for your username in every future session.
 429
 430 };
 431         if ($CPAN::Config->{proxy_user} = prompt("Your proxy user id?",$default)) {
 432             print qq{
 433
 434 Your password for the authenticating proxy can also be stored
 435 permanently on disk. If this violates your security policy, just press
 436 RETURN. You will then be asked for the password in every future
 437 session.
 438
 439 };
 440
 441             if ($CPAN::META->has_inst("Term::ReadKey")) {
 442                 Term::ReadKey::ReadMode("noecho");
 443             } else {
 444                 print qq{
 445
 446 Warning: Term::ReadKey seems not to be available, your password will
 447 be echoed to the terminal!
 448
 449 };
 450             }
 451             $CPAN::Config->{proxy_pass} = prompt("Your proxy password?");
 452             if ($CPAN::META->has_inst("Term::ReadKey")) {
 453                 Term::ReadKey::ReadMode("restore");
 454             }
 455             $CPAN::Frontend->myprint("\n\n");
 456         }
 457     }
 458
 459     #
 460     # MIRRORED.BY
 461     #
 462
 463     conf_sites() unless $fastread;
 464
 465     # We don't ask that now, it will be noticed in time, won't it?
 466     $CPAN::Config->{'inhibit_startup_message'} = 0;
 467     $CPAN::Config->{'getcwd'} = 'cwd';
 468
 469     print "\n\n";
 470     CPAN::Config->commit($configpm);
 471 }
 472
 473 sub conf_sites {
 474   my $m = 'MIRRORED.BY';
 475   my $mby = File::Spec->catfile($CPAN::Config->{keep_source_where},$m);
 476   File::Path::mkpath(File::Basename::dirname($mby));
 477   if (-f $mby && -f $m && -M $m < -M $mby) {
 478     require File::Copy;
 479     File::Copy::copy($m,$mby) or die "Could not update $mby: $!";
 480   }
 481   my $loopcount = 0;
 482   local $^T = time;
 483   my $overwrite_local = 0;
 484   if ($mby && -f $mby && -M _ <= 60 && -s _ > 0) {
 485       my $mtime = localtime((stat _)[9]);
 486       my $prompt = qq{Found $mby as of $mtime
 487
 488 I\'d use that as a database of CPAN sites. If that is OK for you,
 489 please answer 'y', but if you want me to get a new database now,
 490 please answer 'n' to the following question.
 491
 492 Shall I use the local database in $mby?};
 493       my $ans = prompt($prompt,"y");
 494       $overwrite_local = 1 unless $ans =~ /^y/i;
 495   }
 496   while ($mby) {
 497     if ($overwrite_local) {
 498       print qq{Trying to overwrite $mby
 499 };
 500       $mby = CPAN::FTP->localize($m,$mby,3);
 501       $overwrite_local = 0;
 502     } elsif ( ! -f $mby ){
 503       print qq{You have no $mby
 504   I\'m trying to fetch one
 505 };
 506       $mby = CPAN::FTP->localize($m,$mby,3);
 507     } elsif (-M $mby > 60 && $loopcount == 0) {
 508       print qq{Your $mby is older than 60 days,
 509   I\'m trying to fetch one
 510 };
 511       $mby = CPAN::FTP->localize($m,$mby,3);
 512       $loopcount++;
 513     } elsif (-s $mby == 0) {
 514       print qq{You have an empty $mby,
 515   I\'m trying to fetch one
 516 };
 517       $mby = CPAN::FTP->localize($m,$mby,3);
 518     } else {
 519       last;
 520     }
 521   }
 522   read_mirrored_by($mby);
 523   bring_your_own();
 524 }
 525
 526 sub find_exe {
 527     my($exe,$path) = @_;
 528     my($dir);
 529     #warn "in find_exe exe[$exe] path[@$path]";
 530     for $dir (@$path) {
 531         my $abs = File::Spec->catfile($dir,$exe);
 532         if (($abs = MM->maybe_command($abs))) {
 533             return $abs;
 534         }
 535     }
 536 }
 537
 538 sub picklist {
 539     my($items,$prompt,$default,$require_nonempty,$empty_warning)=@_;
 540     $default ||= '';
 541
 542     my $pos = 0;
 543
 544     my @nums;
 545     while (1) {
 546
 547         # display, at most, 15 items at a time
 548         my $limit = $#{ $items } - $pos;
 549         $limit = 15 if $limit > 15;
 550
 551         # show the next $limit items, get the new position
 552         $pos = display_some($items, $limit, $pos);
 553         $pos = 0 if $pos >= @$items;
 554
 555         my $num = prompt($prompt,$default);
 556
 557         @nums = split (' ', $num);
 558         my $i = scalar @$items;
 559         (warn "invalid items entered, try again\n"), next
 560             if grep (/\D/ || $_ < 1 || $_ > $i, @nums);
 561         if ($require_nonempty) {
 562             (warn "$empty_warning\n");
 563         }
 564         print "\n";
 565
 566         # a blank line continues...
 567         next unless @nums;
 568         last;
 569     }
 570     for (@nums) { $_-- }
 571     @{$items}[@nums];
 572 }
 573
 574 sub display_some {
 575         my ($items, $limit, $pos) = @_;
 576         $pos ||= 0;
 577
 578         my @displayable = @$items[$pos .. ($pos + $limit)];
 579     for my $item (@displayable) {
 580                 printf "(%d) %s\n", ++$pos, $item;
 581     }
 582         printf("%d more items, hit SPACE RETURN to show them\n",
 583                (@$items - $pos)
 584               )
 585             if $pos < @$items;
 586         return $pos;
 587 }
 588
 589 sub read_mirrored_by {
 590     my $local = shift or return;
 591     my(%all,$url,$expected_size,$default,$ans,$host,$dst,$country,$continent,@location);
 592     my $fh = FileHandle->new;
 593     $fh->open($local) or die "Couldn't open $local: $!";
 594     local $/ = "\012";
 595     while (<$fh>) {
 596         ($host) = /^([\w\.\-]+)/ unless defined $host;
 597         next unless defined $host;
 598         next unless /\s+dst_(dst|location)/;
 599         /location\s+=\s+\"([^\"]+)/ and @location = (split /\s*,\s*/, $1) and
 600             ($continent, $country) = @location[-1,-2];
 601         $continent =~ s/\s\(.*//;
 602         $continent =~ s/\W+$//; # if Jarkko doesn't know latitude/longitude
 603         /dst_dst\s+=\s+\"([^\"]+)/  and $dst = $1;
 604         next unless $host && $dst && $continent && $country;
 605         $all{$continent}{$country}{$dst} = CPAN::Mirrored::By->new($continent,$country,$dst);
 606         undef $host;
 607         $dst=$continent=$country="";
 608     }
 609     $fh->close;
 610     $CPAN::Config->{urllist} ||= [];
 611     my(@previous_urls);
 612     if (@previous_urls = @{$CPAN::Config->{urllist}}) {
 613         $CPAN::Config->{urllist} = [];
 614     }
 615
 616     print qq{
 617
 618 Now we need to know where your favorite CPAN sites are located. Push
 619 a few sites onto the array (just in case the first on the array won\'t
 620 work). If you are mirroring CPAN to your local workstation, specify a
 621 file: URL.
 622
 623 First, pick a nearby continent and country (you can pick several of
 624 each, separated by spaces, or none if you just want to keep your
 625 existing selections). Then, you will be presented with a list of URLs
 626 of CPAN mirrors in the countries you selected, along with previously
 627 selected URLs. Select some of those URLs, or just keep the old list.
 628 Finally, you will be prompted for any extra URLs -- file:, ftp:, or
 629 http: -- that host a CPAN mirror.
 630
 631 };
 632
 633     my (@cont, $cont, %cont, @countries, @urls, %seen);
 634     my $no_previous_warn =
 635        "Sorry! since you don't have any existing picks, you must make a\n" .
 636        "geographic selection.";
 637     @cont = picklist([sort keys %all],
 638                      "Select your continent (or several nearby continents)",
 639                      '',
 640                      ! @previous_urls,
 641                      $no_previous_warn);
 642
 643
 644     foreach $cont (@cont) {
 645         my @c = sort keys %{$all{$cont}};
 646         @cont{@c} = map ($cont, 0..$#c);
 647         @c = map ("$_ ($cont)", @c) if @cont > 1;
 648         push (@countries, @c);
 649     }
 650
 651     if (@countries) {
 652         @countries = picklist (\@countries,
 653                                "Select your country (or several nearby countries)",
 654                                '',
 655                                ! @previous_urls,
 656                                $no_previous_warn);
 657         %seen = map (($_ => 1), @previous_urls);
 658         # hmmm, should take list of defaults from CPAN::Config->{'urllist'}...
 659         foreach $country (@countries) {
 660             (my $bare_country = $country) =~ s/ \(.*\)//;
 661             my @u = sort keys %{$all{$cont{$bare_country}}{$bare_country}};
 662             @u = grep (! $seen{$_}, @u);
 663             @u = map ("$_ ($bare_country)", @u)
 664                if @countries > 1;
 665             push (@urls, @u);
 666         }
 667     }
 668     push (@urls, map ("$_ (previous pick)", @previous_urls));
 669     my $prompt = "Select as many URLs as you like (by number),
 670 put them on one line, separated by blanks, e.g. '1 4 5'";
 671     if (@previous_urls) {
 672        $default = join (' ', ((scalar @urls) - (scalar @previous_urls) + 1) ..
 673                              (scalar @urls));
 674        $prompt .= "\n(or just hit RETURN to keep your previous picks)";
 675     }
 676
 677     @urls = picklist (\@urls, $prompt, $default);
 678     foreach (@urls) { s/ \(.*\)//; }
 679     push @{$CPAN::Config->{urllist}}, @urls;
 680 }
 681
 682 sub bring_your_own {
 683     my %seen = map (($_ => 1), @{$CPAN::Config->{urllist}});
 684     my($ans,@urls);
 685     do {
 686         my $prompt = "Enter another URL or RETURN to quit:";
 687         unless (%seen) {
 688             $prompt = qq{CPAN.pm needs at least one URL where it can fetch CPAN files from.
 689
 690 Please enter your CPAN site:};
 691         }
 692         $ans = prompt ($prompt, "");
 693
 694         if ($ans) {
 695             $ans =~ s/^\s+//;  # no leading spaces
 696             $ans =~ s/\s+\z//; # no trailing spaces
 697             $ans =~ s|/?\z|/|; # has to end with one slash
 698             $ans = "file:$ans" unless $ans =~ /:/; # without a scheme is a file:
 699             if ($ans =~ /^\w+:\/./) {
 700                 push @urls, $ans unless $seen{$ans}++;
 701             } else {
 702                 printf(qq{"%s" doesn\'t look like an URL at first sight.
 703 I\'ll ignore it for now.
 704 You can add it to your %s
 705 later if you\'re sure it\'s right.\n},
 706                        $ans,
 707                        $INC{'CPAN/MyConfig.pm'} || $INC{'CPAN/Config.pm'} || "configuration file",
 708                       );
 709             }
 710         }
 711     } while $ans || !%seen;
 712
 713     push @{$CPAN::Config->{urllist}}, @urls;
 714     # xxx delete or comment these out when you're happy that it works
 715     print "New set of picks:\n";
 716     map { print "  $_\n" } @{$CPAN::Config->{urllist}};
 717 }
 718
 719 1;