1#line 1 2package Module::AutoInstall; 3 4use strict; 5use Cwd (); 6use ExtUtils::MakeMaker (); 7 8use vars qw{$VERSION}; 9BEGIN { 10 $VERSION = '1.03'; 11} 12 13# special map on pre-defined feature sets 14my %FeatureMap = ( 15 '' => 'Core Features', # XXX: deprecated 16 '-core' => 'Core Features', 17); 18 19# various lexical flags 20my ( @Missing, @Existing, %DisabledTests, $UnderCPAN, $HasCPANPLUS ); 21my ( 22 $Config, $CheckOnly, $SkipInstall, $AcceptDefault, $TestOnly, $AllDeps 23); 24my ( $PostambleActions, $PostambleUsed ); 25 26# See if it's a testing or non-interactive session 27_accept_default( $ENV{AUTOMATED_TESTING} or ! -t STDIN ); 28_init(); 29 30sub _accept_default { 31 $AcceptDefault = shift; 32} 33 34sub missing_modules { 35 return @Missing; 36} 37 38sub do_install { 39 __PACKAGE__->install( 40 [ 41 $Config 42 ? ( UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) 43 : () 44 ], 45 @Missing, 46 ); 47} 48 49# initialize various flags, and/or perform install 50sub _init { 51 foreach my $arg ( 52 @ARGV, 53 split( 54 /[\s\t]+/, 55 $ENV{PERL_AUTOINSTALL} || $ENV{PERL_EXTUTILS_AUTOINSTALL} || '' 56 ) 57 ) 58 { 59 if ( $arg =~ /^--config=(.*)$/ ) { 60 $Config = [ split( ',', $1 ) ]; 61 } 62 elsif ( $arg =~ /^--installdeps=(.*)$/ ) { 63 __PACKAGE__->install( $Config, @Missing = split( /,/, $1 ) ); 64 exit 0; 65 } 66 elsif ( $arg =~ /^--default(?:deps)?$/ ) { 67 $AcceptDefault = 1; 68 } 69 elsif ( $arg =~ /^--check(?:deps)?$/ ) { 70 $CheckOnly = 1; 71 } 72 elsif ( $arg =~ /^--skip(?:deps)?$/ ) { 73 $SkipInstall = 1; 74 } 75 elsif ( $arg =~ /^--test(?:only)?$/ ) { 76 $TestOnly = 1; 77 } 78 elsif ( $arg =~ /^--all(?:deps)?$/ ) { 79 $AllDeps = 1; 80 } 81 } 82} 83 84# overrides MakeMaker's prompt() to automatically accept the default choice 85sub _prompt { 86 goto &ExtUtils::MakeMaker::prompt unless $AcceptDefault; 87 88 my ( $prompt, $default ) = @_; 89 my $y = ( $default =~ /^[Yy]/ ); 90 91 print $prompt, ' [', ( $y ? 'Y' : 'y' ), '/', ( $y ? 'n' : 'N' ), '] '; 92 print "$default\n"; 93 return $default; 94} 95 96# the workhorse 97sub import { 98 my $class = shift; 99 my @args = @_ or return; 100 my $core_all; 101 102 print "*** $class version " . $class->VERSION . "\n"; 103 print "*** Checking for Perl dependencies...\n"; 104 105 my $cwd = Cwd::cwd(); 106 107 $Config = []; 108 109 my $maxlen = length( 110 ( 111 sort { length($b) <=> length($a) } 112 grep { /^[^\-]/ } 113 map { 114 ref($_) 115 ? ( ( ref($_) eq 'HASH' ) ? keys(%$_) : @{$_} ) 116 : '' 117 } 118 map { +{@args}->{$_} } 119 grep { /^[^\-]/ or /^-core$/i } keys %{ +{@args} } 120 )[0] 121 ); 122 123 # We want to know if we're under CPAN early to avoid prompting, but 124 # if we aren't going to try and install anything anyway then skip the 125 # check entirely since we don't want to have to load (and configure) 126 # an old CPAN just for a cosmetic message 127 128 $UnderCPAN = _check_lock(1) unless $SkipInstall; 129 130 while ( my ( $feature, $modules ) = splice( @args, 0, 2 ) ) { 131 my ( @required, @tests, @skiptests ); 132 my $default = 1; 133 my $conflict = 0; 134 135 if ( $feature =~ m/^-(\w+)$/ ) { 136 my $option = lc($1); 137 138 # check for a newer version of myself 139 _update_to( $modules, @_ ) and return if $option eq 'version'; 140 141 # sets CPAN configuration options 142 $Config = $modules if $option eq 'config'; 143 144 # promote every features to core status 145 $core_all = ( $modules =~ /^all$/i ) and next 146 if $option eq 'core'; 147 148 next unless $option eq 'core'; 149 } 150 151 print "[" . ( $FeatureMap{ lc($feature) } || $feature ) . "]\n"; 152 153 $modules = [ %{$modules} ] if UNIVERSAL::isa( $modules, 'HASH' ); 154 155 unshift @$modules, -default => &{ shift(@$modules) } 156 if ( ref( $modules->[0] ) eq 'CODE' ); # XXX: bugward combatability 157 158 while ( my ( $mod, $arg ) = splice( @$modules, 0, 2 ) ) { 159 if ( $mod =~ m/^-(\w+)$/ ) { 160 my $option = lc($1); 161 162 $default = $arg if ( $option eq 'default' ); 163 $conflict = $arg if ( $option eq 'conflict' ); 164 @tests = @{$arg} if ( $option eq 'tests' ); 165 @skiptests = @{$arg} if ( $option eq 'skiptests' ); 166 167 next; 168 } 169 170 printf( "- %-${maxlen}s ...", $mod ); 171 172 if ( $arg and $arg =~ /^\D/ ) { 173 unshift @$modules, $arg; 174 $arg = 0; 175 } 176 177 # XXX: check for conflicts and uninstalls(!) them. 178 my $cur = _load($mod); 179 if (_version_cmp ($cur, $arg) >= 0) 180 { 181 print "loaded. ($cur" . ( $arg ? " >= $arg" : '' ) . ")\n"; 182 push @Existing, $mod => $arg; 183 $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; 184 } 185 else { 186 if (not defined $cur) # indeed missing 187 { 188 print "missing." . ( $arg ? " (would need $arg)" : '' ) . "\n"; 189 } 190 else 191 { 192 # no need to check $arg as _version_cmp ($cur, undef) would satisfy >= above 193 print "too old. ($cur < $arg)\n"; 194 } 195 196 push @required, $mod => $arg; 197 } 198 } 199 200 next unless @required; 201 202 my $mandatory = ( $feature eq '-core' or $core_all ); 203 204 if ( 205 !$SkipInstall 206 and ( 207 $CheckOnly 208 or ($mandatory and $UnderCPAN) 209 or $AllDeps 210 or _prompt( 211 qq{==> Auto-install the } 212 . ( @required / 2 ) 213 . ( $mandatory ? ' mandatory' : ' optional' ) 214 . qq{ module(s) from CPAN?}, 215 $default ? 'y' : 'n', 216 ) =~ /^[Yy]/ 217 ) 218 ) 219 { 220 push( @Missing, @required ); 221 $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; 222 } 223 224 elsif ( !$SkipInstall 225 and $default 226 and $mandatory 227 and 228 _prompt( qq{==> The module(s) are mandatory! Really skip?}, 'n', ) 229 =~ /^[Nn]/ ) 230 { 231 push( @Missing, @required ); 232 $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; 233 } 234 235 else { 236 $DisabledTests{$_} = 1 for map { glob($_) } @tests; 237 } 238 } 239 240 if ( @Missing and not( $CheckOnly or $UnderCPAN ) ) { 241 require Config; 242 print 243"*** Dependencies will be installed the next time you type '$Config::Config{make}'.\n"; 244 245 # make an educated guess of whether we'll need root permission. 246 print " (You may need to do that as the 'root' user.)\n" 247 if eval '$>'; 248 } 249 print "*** $class configuration finished.\n"; 250 251 chdir $cwd; 252 253 # import to main:: 254 no strict 'refs'; 255 *{'main::WriteMakefile'} = \&Write if caller(0) eq 'main'; 256} 257 258sub _running_under { 259 my $thing = shift; 260 print <<"END_MESSAGE"; 261*** Since we're running under ${thing}, I'll just let it take care 262 of the dependency's installation later. 263END_MESSAGE 264 return 1; 265} 266 267# Check to see if we are currently running under CPAN.pm and/or CPANPLUS; 268# if we are, then we simply let it taking care of our dependencies 269sub _check_lock { 270 return unless @Missing or @_; 271 272 my $cpan_env = $ENV{PERL5_CPAN_IS_RUNNING}; 273 274 if ($ENV{PERL5_CPANPLUS_IS_RUNNING}) { 275 return _running_under($cpan_env ? 'CPAN' : 'CPANPLUS'); 276 } 277 278 require CPAN; 279 280 if ($CPAN::VERSION > '1.89') { 281 if ($cpan_env) { 282 return _running_under('CPAN'); 283 } 284 return; # CPAN.pm new enough, don't need to check further 285 } 286 287 # last ditch attempt, this -will- configure CPAN, very sorry 288 289 _load_cpan(1); # force initialize even though it's already loaded 290 291 # Find the CPAN lock-file 292 my $lock = MM->catfile( $CPAN::Config->{cpan_home}, ".lock" ); 293 return unless -f $lock; 294 295 # Check the lock 296 local *LOCK; 297 return unless open(LOCK, $lock); 298 299 if ( 300 ( $^O eq 'MSWin32' ? _under_cpan() : <LOCK> == getppid() ) 301 and ( $CPAN::Config->{prerequisites_policy} || '' ) ne 'ignore' 302 ) { 303 print <<'END_MESSAGE'; 304 305*** Since we're running under CPAN, I'll just let it take care 306 of the dependency's installation later. 307END_MESSAGE 308 return 1; 309 } 310 311 close LOCK; 312 return; 313} 314 315sub install { 316 my $class = shift; 317 318 my $i; # used below to strip leading '-' from config keys 319 my @config = ( map { s/^-// if ++$i; $_ } @{ +shift } ); 320 321 my ( @modules, @installed ); 322 while ( my ( $pkg, $ver ) = splice( @_, 0, 2 ) ) { 323 324 # grep out those already installed 325 if ( _version_cmp( _load($pkg), $ver ) >= 0 ) { 326 push @installed, $pkg; 327 } 328 else { 329 push @modules, $pkg, $ver; 330 } 331 } 332 333 return @installed unless @modules; # nothing to do 334 return @installed if _check_lock(); # defer to the CPAN shell 335 336 print "*** Installing dependencies...\n"; 337 338 return unless _connected_to('cpan.org'); 339 340 my %args = @config; 341 my %failed; 342 local *FAILED; 343 if ( $args{do_once} and open( FAILED, '.#autoinstall.failed' ) ) { 344 while (<FAILED>) { chomp; $failed{$_}++ } 345 close FAILED; 346 347 my @newmod; 348 while ( my ( $k, $v ) = splice( @modules, 0, 2 ) ) { 349 push @newmod, ( $k => $v ) unless $failed{$k}; 350 } 351 @modules = @newmod; 352 } 353 354 if ( _has_cpanplus() and not $ENV{PERL_AUTOINSTALL_PREFER_CPAN} ) { 355 _install_cpanplus( \@modules, \@config ); 356 } else { 357 _install_cpan( \@modules, \@config ); 358 } 359 360 print "*** $class installation finished.\n"; 361 362 # see if we have successfully installed them 363 while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { 364 if ( _version_cmp( _load($pkg), $ver ) >= 0 ) { 365 push @installed, $pkg; 366 } 367 elsif ( $args{do_once} and open( FAILED, '>> .#autoinstall.failed' ) ) { 368 print FAILED "$pkg\n"; 369 } 370 } 371 372 close FAILED if $args{do_once}; 373 374 return @installed; 375} 376 377sub _install_cpanplus { 378 my @modules = @{ +shift }; 379 my @config = _cpanplus_config( @{ +shift } ); 380 my $installed = 0; 381 382 require CPANPLUS::Backend; 383 my $cp = CPANPLUS::Backend->new; 384 my $conf = $cp->configure_object; 385 386 return unless $conf->can('conf') # 0.05x+ with "sudo" support 387 or _can_write($conf->_get_build('base')); # 0.04x 388 389 # if we're root, set UNINST=1 to avoid trouble unless user asked for it. 390 my $makeflags = $conf->get_conf('makeflags') || ''; 391 if ( UNIVERSAL::isa( $makeflags, 'HASH' ) ) { 392 # 0.03+ uses a hashref here 393 $makeflags->{UNINST} = 1 unless exists $makeflags->{UNINST}; 394 395 } else { 396 # 0.02 and below uses a scalar 397 $makeflags = join( ' ', split( ' ', $makeflags ), 'UNINST=1' ) 398 if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } ); 399 400 } 401 $conf->set_conf( makeflags => $makeflags ); 402 $conf->set_conf( prereqs => 1 ); 403 404 405 406 while ( my ( $key, $val ) = splice( @config, 0, 2 ) ) { 407 $conf->set_conf( $key, $val ); 408 } 409 410 my $modtree = $cp->module_tree; 411 while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { 412 print "*** Installing $pkg...\n"; 413 414 MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall; 415 416 my $success; 417 my $obj = $modtree->{$pkg}; 418 419 if ( $obj and _version_cmp( $obj->{version}, $ver ) >= 0 ) { 420 my $pathname = $pkg; 421 $pathname =~ s/::/\\W/; 422 423 foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) { 424 delete $INC{$inc}; 425 } 426 427 my $rv = $cp->install( modules => [ $obj->{module} ] ); 428 429 if ( $rv and ( $rv->{ $obj->{module} } or $rv->{ok} ) ) { 430 print "*** $pkg successfully installed.\n"; 431 $success = 1; 432 } else { 433 print "*** $pkg installation cancelled.\n"; 434 $success = 0; 435 } 436 437 $installed += $success; 438 } else { 439 print << "."; 440*** Could not find a version $ver or above for $pkg; skipping. 441. 442 } 443 444 MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall; 445 } 446 447 return $installed; 448} 449 450sub _cpanplus_config { 451 my @config = (); 452 while ( @_ ) { 453 my ($key, $value) = (shift(), shift()); 454 if ( $key eq 'prerequisites_policy' ) { 455 if ( $value eq 'follow' ) { 456 $value = CPANPLUS::Internals::Constants::PREREQ_INSTALL(); 457 } elsif ( $value eq 'ask' ) { 458 $value = CPANPLUS::Internals::Constants::PREREQ_ASK(); 459 } elsif ( $value eq 'ignore' ) { 460 $value = CPANPLUS::Internals::Constants::PREREQ_IGNORE(); 461 } else { 462 die "*** Cannot convert option $key = '$value' to CPANPLUS version.\n"; 463 } 464 } else { 465 die "*** Cannot convert option $key to CPANPLUS version.\n"; 466 } 467 } 468 return @config; 469} 470 471sub _install_cpan { 472 my @modules = @{ +shift }; 473 my @config = @{ +shift }; 474 my $installed = 0; 475 my %args; 476 477 _load_cpan(); 478 require Config; 479 480 if (CPAN->VERSION < 1.80) { 481 # no "sudo" support, probe for writableness 482 return unless _can_write( MM->catfile( $CPAN::Config->{cpan_home}, 'sources' ) ) 483 and _can_write( $Config::Config{sitelib} ); 484 } 485 486 # if we're root, set UNINST=1 to avoid trouble unless user asked for it. 487 my $makeflags = $CPAN::Config->{make_install_arg} || ''; 488 $CPAN::Config->{make_install_arg} = 489 join( ' ', split( ' ', $makeflags ), 'UNINST=1' ) 490 if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } ); 491 492 # don't show start-up info 493 $CPAN::Config->{inhibit_startup_message} = 1; 494 495 # set additional options 496 while ( my ( $opt, $arg ) = splice( @config, 0, 2 ) ) { 497 ( $args{$opt} = $arg, next ) 498 if $opt =~ /^force$/; # pseudo-option 499 $CPAN::Config->{$opt} = $arg; 500 } 501 502 local $CPAN::Config->{prerequisites_policy} = 'follow'; 503 504 while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { 505 MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall; 506 507 print "*** Installing $pkg...\n"; 508 509 my $obj = CPAN::Shell->expand( Module => $pkg ); 510 my $success = 0; 511 512 if ( $obj and _version_cmp( $obj->cpan_version, $ver ) >= 0 ) { 513 my $pathname = $pkg; 514 $pathname =~ s/::/\\W/; 515 516 foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) { 517 delete $INC{$inc}; 518 } 519 520 my $rv = $args{force} ? CPAN::Shell->force( install => $pkg ) 521 : CPAN::Shell->install($pkg); 522 $rv ||= eval { 523 $CPAN::META->instance( 'CPAN::Distribution', $obj->cpan_file, ) 524 ->{install} 525 if $CPAN::META; 526 }; 527 528 if ( $rv eq 'YES' ) { 529 print "*** $pkg successfully installed.\n"; 530 $success = 1; 531 } 532 else { 533 print "*** $pkg installation failed.\n"; 534 $success = 0; 535 } 536 537 $installed += $success; 538 } 539 else { 540 print << "."; 541*** Could not find a version $ver or above for $pkg; skipping. 542. 543 } 544 545 MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall; 546 } 547 548 return $installed; 549} 550 551sub _has_cpanplus { 552 return ( 553 $HasCPANPLUS = ( 554 $INC{'CPANPLUS/Config.pm'} 555 or _load('CPANPLUS::Shell::Default') 556 ) 557 ); 558} 559 560# make guesses on whether we're under the CPAN installation directory 561sub _under_cpan { 562 require Cwd; 563 require File::Spec; 564 565 my $cwd = File::Spec->canonpath( Cwd::cwd() ); 566 my $cpan = File::Spec->canonpath( $CPAN::Config->{cpan_home} ); 567 568 return ( index( $cwd, $cpan ) > -1 ); 569} 570 571sub _update_to { 572 my $class = __PACKAGE__; 573 my $ver = shift; 574 575 return 576 if _version_cmp( _load($class), $ver ) >= 0; # no need to upgrade 577 578 if ( 579 _prompt( "==> A newer version of $class ($ver) is required. Install?", 580 'y' ) =~ /^[Nn]/ 581 ) 582 { 583 die "*** Please install $class $ver manually.\n"; 584 } 585 586 print << "."; 587*** Trying to fetch it from CPAN... 588. 589 590 # install ourselves 591 _load($class) and return $class->import(@_) 592 if $class->install( [], $class, $ver ); 593 594 print << '.'; exit 1; 595 596*** Cannot bootstrap myself. :-( Installation terminated. 597. 598} 599 600# check if we're connected to some host, using inet_aton 601sub _connected_to { 602 my $site = shift; 603 604 return ( 605 ( _load('Socket') and Socket::inet_aton($site) ) or _prompt( 606 qq( 607*** Your host cannot resolve the domain name '$site', which 608 probably means the Internet connections are unavailable. 609==> Should we try to install the required module(s) anyway?), 'n' 610 ) =~ /^[Yy]/ 611 ); 612} 613 614# check if a directory is writable; may create it on demand 615sub _can_write { 616 my $path = shift; 617 mkdir( $path, 0755 ) unless -e $path; 618 619 return 1 if -w $path; 620 621 print << "."; 622*** You are not allowed to write to the directory '$path'; 623 the installation may fail due to insufficient permissions. 624. 625 626 if ( 627 eval '$>' and lc(`sudo -V`) =~ /version/ and _prompt( 628 qq( 629==> Should we try to re-execute the autoinstall process with 'sudo'?), 630 ((-t STDIN) ? 'y' : 'n') 631 ) =~ /^[Yy]/ 632 ) 633 { 634 635 # try to bootstrap ourselves from sudo 636 print << "."; 637*** Trying to re-execute the autoinstall process with 'sudo'... 638. 639 my $missing = join( ',', @Missing ); 640 my $config = join( ',', 641 UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) 642 if $Config; 643 644 return 645 unless system( 'sudo', $^X, $0, "--config=$config", 646 "--installdeps=$missing" ); 647 648 print << "."; 649*** The 'sudo' command exited with error! Resuming... 650. 651 } 652 653 return _prompt( 654 qq( 655==> Should we try to install the required module(s) anyway?), 'n' 656 ) =~ /^[Yy]/; 657} 658 659# load a module and return the version it reports 660sub _load { 661 my $mod = pop; # class/instance doesn't matter 662 my $file = $mod; 663 664 $file =~ s|::|/|g; 665 $file .= '.pm'; 666 667 local $@; 668 return eval { require $file; $mod->VERSION } || ( $@ ? undef: 0 ); 669} 670 671# Load CPAN.pm and it's configuration 672sub _load_cpan { 673 return if $CPAN::VERSION and $CPAN::Config and not @_; 674 require CPAN; 675 676 # CPAN-1.82+ adds CPAN::Config::AUTOLOAD to redirect to 677 # CPAN::HandleConfig->load. CPAN reports that the redirection 678 # is deprecated in a warning printed at the user. 679 680 # CPAN-1.81 expects CPAN::HandleConfig->load, does not have 681 # $CPAN::HandleConfig::VERSION but cannot handle 682 # CPAN::Config->load 683 684 # Which "versions expect CPAN::Config->load? 685 686 if ( $CPAN::HandleConfig::VERSION 687 || CPAN::HandleConfig->can('load') 688 ) { 689 # Newer versions of CPAN have a HandleConfig module 690 CPAN::HandleConfig->load; 691 } else { 692 # Older versions had the load method in Config directly 693 CPAN::Config->load; 694 } 695} 696 697# compare two versions, either use Sort::Versions or plain comparison 698# return values same as <=> 699sub _version_cmp { 700 my ( $cur, $min ) = @_; 701 return -1 unless defined $cur; # if 0 keep comparing 702 return 1 unless $min; 703 704 $cur =~ s/\s+$//; 705 706 # check for version numbers that are not in decimal format 707 if ( ref($cur) or ref($min) or $cur =~ /v|\..*\./ or $min =~ /v|\..*\./ ) { 708 if ( ( $version::VERSION or defined( _load('version') )) and 709 version->can('new') 710 ) { 711 712 # use version.pm if it is installed. 713 return version->new($cur) <=> version->new($min); 714 } 715 elsif ( $Sort::Versions::VERSION or defined( _load('Sort::Versions') ) ) 716 { 717 718 # use Sort::Versions as the sorting algorithm for a.b.c versions 719 return Sort::Versions::versioncmp( $cur, $min ); 720 } 721 722 warn "Cannot reliably compare non-decimal formatted versions.\n" 723 . "Please install version.pm or Sort::Versions.\n"; 724 } 725 726 # plain comparison 727 local $^W = 0; # shuts off 'not numeric' bugs 728 return $cur <=> $min; 729} 730 731# nothing; this usage is deprecated. 732sub main::PREREQ_PM { return {}; } 733 734sub _make_args { 735 my %args = @_; 736 737 $args{PREREQ_PM} = { %{ $args{PREREQ_PM} || {} }, @Existing, @Missing } 738 if $UnderCPAN or $TestOnly; 739 740 if ( $args{EXE_FILES} and -e 'MANIFEST' ) { 741 require ExtUtils::Manifest; 742 my $manifest = ExtUtils::Manifest::maniread('MANIFEST'); 743 744 $args{EXE_FILES} = 745 [ grep { exists $manifest->{$_} } @{ $args{EXE_FILES} } ]; 746 } 747 748 $args{test}{TESTS} ||= 't/*.t'; 749 $args{test}{TESTS} = join( ' ', 750 grep { !exists( $DisabledTests{$_} ) } 751 map { glob($_) } split( /\s+/, $args{test}{TESTS} ) ); 752 753 my $missing = join( ',', @Missing ); 754 my $config = 755 join( ',', UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) 756 if $Config; 757 758 $PostambleActions = ( 759 ($missing and not $UnderCPAN) 760 ? "\$(PERL) $0 --config=$config --installdeps=$missing" 761 : "\$(NOECHO) \$(NOOP)" 762 ); 763 764 return %args; 765} 766 767# a wrapper to ExtUtils::MakeMaker::WriteMakefile 768sub Write { 769 require Carp; 770 Carp::croak "WriteMakefile: Need even number of args" if @_ % 2; 771 772 if ($CheckOnly) { 773 print << "."; 774*** Makefile not written in check-only mode. 775. 776 return; 777 } 778 779 my %args = _make_args(@_); 780 781 no strict 'refs'; 782 783 $PostambleUsed = 0; 784 local *MY::postamble = \&postamble unless defined &MY::postamble; 785 ExtUtils::MakeMaker::WriteMakefile(%args); 786 787 print << "." unless $PostambleUsed; 788*** WARNING: Makefile written with customized MY::postamble() without 789 including contents from Module::AutoInstall::postamble() -- 790 auto installation features disabled. Please contact the author. 791. 792 793 return 1; 794} 795 796sub postamble { 797 $PostambleUsed = 1; 798 799 return <<"END_MAKE"; 800 801config :: installdeps 802\t\$(NOECHO) \$(NOOP) 803 804checkdeps :: 805\t\$(PERL) $0 --checkdeps 806 807installdeps :: 808\t$PostambleActions 809 810END_MAKE 811 812} 813 8141; 815 816__END__ 817 818#line 1069 819