769 lines
20 KiB
Perl
769 lines
20 KiB
Perl
#line 1
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package Module::AutoInstall;
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use strict;
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use Cwd ();
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use ExtUtils::MakeMaker ();
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use vars qw{$VERSION};
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BEGIN {
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$VERSION = '1.03';
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}
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# special map on pre-defined feature sets
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my %FeatureMap = (
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'' => 'Core Features', # XXX: deprecated
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'-core' => 'Core Features',
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);
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# various lexical flags
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my ( @Missing, @Existing, %DisabledTests, $UnderCPAN, $HasCPANPLUS );
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my ( $Config, $CheckOnly, $SkipInstall, $AcceptDefault, $TestOnly );
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my ( $PostambleActions, $PostambleUsed );
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# See if it's a testing or non-interactive session
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_accept_default( $ENV{AUTOMATED_TESTING} or ! -t STDIN );
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_init();
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sub _accept_default {
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$AcceptDefault = shift;
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}
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sub missing_modules {
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return @Missing;
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}
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sub do_install {
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__PACKAGE__->install(
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[
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$Config
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? ( UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} )
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: ()
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],
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@Missing,
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);
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}
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# initialize various flags, and/or perform install
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sub _init {
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foreach my $arg (
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@ARGV,
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split(
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/[\s\t]+/,
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$ENV{PERL_AUTOINSTALL} || $ENV{PERL_EXTUTILS_AUTOINSTALL} || ''
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)
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)
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{
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if ( $arg =~ /^--config=(.*)$/ ) {
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$Config = [ split( ',', $1 ) ];
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}
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elsif ( $arg =~ /^--installdeps=(.*)$/ ) {
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__PACKAGE__->install( $Config, @Missing = split( /,/, $1 ) );
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exit 0;
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}
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elsif ( $arg =~ /^--default(?:deps)?$/ ) {
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$AcceptDefault = 1;
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}
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elsif ( $arg =~ /^--check(?:deps)?$/ ) {
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$CheckOnly = 1;
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}
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elsif ( $arg =~ /^--skip(?:deps)?$/ ) {
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$SkipInstall = 1;
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}
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elsif ( $arg =~ /^--test(?:only)?$/ ) {
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$TestOnly = 1;
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}
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}
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}
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# overrides MakeMaker's prompt() to automatically accept the default choice
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sub _prompt {
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goto &ExtUtils::MakeMaker::prompt unless $AcceptDefault;
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my ( $prompt, $default ) = @_;
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my $y = ( $default =~ /^[Yy]/ );
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print $prompt, ' [', ( $y ? 'Y' : 'y' ), '/', ( $y ? 'n' : 'N' ), '] ';
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print "$default\n";
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return $default;
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}
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# the workhorse
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sub import {
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my $class = shift;
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my @args = @_ or return;
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my $core_all;
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print "*** $class version " . $class->VERSION . "\n";
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print "*** Checking for Perl dependencies...\n";
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my $cwd = Cwd::cwd();
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$Config = [];
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my $maxlen = length(
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(
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sort { length($b) <=> length($a) }
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grep { /^[^\-]/ }
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map {
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ref($_)
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? ( ( ref($_) eq 'HASH' ) ? keys(%$_) : @{$_} )
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: ''
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}
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map { +{@args}->{$_} }
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grep { /^[^\-]/ or /^-core$/i } keys %{ +{@args} }
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)[0]
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);
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while ( my ( $feature, $modules ) = splice( @args, 0, 2 ) ) {
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my ( @required, @tests, @skiptests );
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my $default = 1;
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my $conflict = 0;
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if ( $feature =~ m/^-(\w+)$/ ) {
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my $option = lc($1);
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# check for a newer version of myself
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_update_to( $modules, @_ ) and return if $option eq 'version';
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# sets CPAN configuration options
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$Config = $modules if $option eq 'config';
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# promote every features to core status
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$core_all = ( $modules =~ /^all$/i ) and next
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if $option eq 'core';
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next unless $option eq 'core';
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}
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print "[" . ( $FeatureMap{ lc($feature) } || $feature ) . "]\n";
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$modules = [ %{$modules} ] if UNIVERSAL::isa( $modules, 'HASH' );
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unshift @$modules, -default => &{ shift(@$modules) }
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if ( ref( $modules->[0] ) eq 'CODE' ); # XXX: bugward combatability
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while ( my ( $mod, $arg ) = splice( @$modules, 0, 2 ) ) {
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if ( $mod =~ m/^-(\w+)$/ ) {
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my $option = lc($1);
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$default = $arg if ( $option eq 'default' );
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$conflict = $arg if ( $option eq 'conflict' );
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@tests = @{$arg} if ( $option eq 'tests' );
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@skiptests = @{$arg} if ( $option eq 'skiptests' );
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next;
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}
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printf( "- %-${maxlen}s ...", $mod );
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if ( $arg and $arg =~ /^\D/ ) {
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unshift @$modules, $arg;
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$arg = 0;
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}
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# XXX: check for conflicts and uninstalls(!) them.
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if (
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defined( my $cur = _version_check( _load($mod), $arg ||= 0 ) ) )
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{
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print "loaded. ($cur" . ( $arg ? " >= $arg" : '' ) . ")\n";
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push @Existing, $mod => $arg;
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$DisabledTests{$_} = 1 for map { glob($_) } @skiptests;
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}
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else {
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print "missing." . ( $arg ? " (would need $arg)" : '' ) . "\n";
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push @required, $mod => $arg;
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}
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}
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next unless @required;
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my $mandatory = ( $feature eq '-core' or $core_all );
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if (
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!$SkipInstall
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and (
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$CheckOnly
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or _prompt(
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qq{==> Auto-install the }
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. ( @required / 2 )
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. ( $mandatory ? ' mandatory' : ' optional' )
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. qq{ module(s) from CPAN?},
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$default ? 'y' : 'n',
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) =~ /^[Yy]/
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)
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)
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{
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push( @Missing, @required );
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$DisabledTests{$_} = 1 for map { glob($_) } @skiptests;
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}
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elsif ( !$SkipInstall
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and $default
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and $mandatory
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and
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_prompt( qq{==> The module(s) are mandatory! Really skip?}, 'n', )
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=~ /^[Nn]/ )
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{
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push( @Missing, @required );
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$DisabledTests{$_} = 1 for map { glob($_) } @skiptests;
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}
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else {
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$DisabledTests{$_} = 1 for map { glob($_) } @tests;
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}
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}
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$UnderCPAN = _check_lock(); # check for $UnderCPAN
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if ( @Missing and not( $CheckOnly or $UnderCPAN ) ) {
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require Config;
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print
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"*** Dependencies will be installed the next time you type '$Config::Config{make}'.\n";
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# make an educated guess of whether we'll need root permission.
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print " (You may need to do that as the 'root' user.)\n"
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if eval '$>';
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}
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print "*** $class configuration finished.\n";
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chdir $cwd;
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# import to main::
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no strict 'refs';
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*{'main::WriteMakefile'} = \&Write if caller(0) eq 'main';
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}
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# Check to see if we are currently running under CPAN.pm and/or CPANPLUS;
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# if we are, then we simply let it taking care of our dependencies
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sub _check_lock {
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return unless @Missing;
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if ($ENV{PERL5_CPANPLUS_IS_RUNNING}) {
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print <<'END_MESSAGE';
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*** Since we're running under CPANPLUS, I'll just let it take care
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of the dependency's installation later.
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END_MESSAGE
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return 1;
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}
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_load_cpan();
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# Find the CPAN lock-file
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my $lock = MM->catfile( $CPAN::Config->{cpan_home}, ".lock" );
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return unless -f $lock;
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# Check the lock
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local *LOCK;
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return unless open(LOCK, $lock);
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if (
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( $^O eq 'MSWin32' ? _under_cpan() : <LOCK> == getppid() )
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and ( $CPAN::Config->{prerequisites_policy} || '' ) ne 'ignore'
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) {
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print <<'END_MESSAGE';
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*** Since we're running under CPAN, I'll just let it take care
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of the dependency's installation later.
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END_MESSAGE
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return 1;
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}
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close LOCK;
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return;
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}
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sub install {
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my $class = shift;
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my $i; # used below to strip leading '-' from config keys
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my @config = ( map { s/^-// if ++$i; $_ } @{ +shift } );
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my ( @modules, @installed );
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while ( my ( $pkg, $ver ) = splice( @_, 0, 2 ) ) {
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# grep out those already installed
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if ( defined( _version_check( _load($pkg), $ver ) ) ) {
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push @installed, $pkg;
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}
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else {
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push @modules, $pkg, $ver;
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}
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}
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return @installed unless @modules; # nothing to do
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return @installed if _check_lock(); # defer to the CPAN shell
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print "*** Installing dependencies...\n";
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return unless _connected_to('cpan.org');
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my %args = @config;
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my %failed;
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local *FAILED;
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if ( $args{do_once} and open( FAILED, '.#autoinstall.failed' ) ) {
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while (<FAILED>) { chomp; $failed{$_}++ }
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close FAILED;
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my @newmod;
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while ( my ( $k, $v ) = splice( @modules, 0, 2 ) ) {
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push @newmod, ( $k => $v ) unless $failed{$k};
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}
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@modules = @newmod;
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}
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if ( _has_cpanplus() ) {
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_install_cpanplus( \@modules, \@config );
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} else {
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_install_cpan( \@modules, \@config );
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}
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print "*** $class installation finished.\n";
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# see if we have successfully installed them
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while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
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if ( defined( _version_check( _load($pkg), $ver ) ) ) {
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push @installed, $pkg;
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}
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elsif ( $args{do_once} and open( FAILED, '>> .#autoinstall.failed' ) ) {
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print FAILED "$pkg\n";
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}
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}
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close FAILED if $args{do_once};
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return @installed;
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}
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sub _install_cpanplus {
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my @modules = @{ +shift };
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my @config = _cpanplus_config( @{ +shift } );
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my $installed = 0;
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require CPANPLUS::Backend;
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my $cp = CPANPLUS::Backend->new;
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my $conf = $cp->configure_object;
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return unless $conf->can('conf') # 0.05x+ with "sudo" support
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or _can_write($conf->_get_build('base')); # 0.04x
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# if we're root, set UNINST=1 to avoid trouble unless user asked for it.
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my $makeflags = $conf->get_conf('makeflags') || '';
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if ( UNIVERSAL::isa( $makeflags, 'HASH' ) ) {
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# 0.03+ uses a hashref here
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$makeflags->{UNINST} = 1 unless exists $makeflags->{UNINST};
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} else {
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# 0.02 and below uses a scalar
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$makeflags = join( ' ', split( ' ', $makeflags ), 'UNINST=1' )
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if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } );
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}
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$conf->set_conf( makeflags => $makeflags );
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$conf->set_conf( prereqs => 1 );
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while ( my ( $key, $val ) = splice( @config, 0, 2 ) ) {
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$conf->set_conf( $key, $val );
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}
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my $modtree = $cp->module_tree;
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while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
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print "*** Installing $pkg...\n";
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MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall;
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my $success;
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my $obj = $modtree->{$pkg};
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if ( $obj and defined( _version_check( $obj->{version}, $ver ) ) ) {
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my $pathname = $pkg;
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$pathname =~ s/::/\\W/;
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foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) {
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delete $INC{$inc};
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}
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my $rv = $cp->install( modules => [ $obj->{module} ] );
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if ( $rv and ( $rv->{ $obj->{module} } or $rv->{ok} ) ) {
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print "*** $pkg successfully installed.\n";
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$success = 1;
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} else {
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print "*** $pkg installation cancelled.\n";
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$success = 0;
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}
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$installed += $success;
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} else {
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print << ".";
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*** Could not find a version $ver or above for $pkg; skipping.
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.
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}
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MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall;
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}
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return $installed;
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}
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sub _cpanplus_config {
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my @config = ();
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while ( @_ ) {
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my ($key, $value) = (shift(), shift());
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if ( $key eq 'prerequisites_policy' ) {
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if ( $value eq 'follow' ) {
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$value = CPANPLUS::Internals::Constants::PREREQ_INSTALL();
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} elsif ( $value eq 'ask' ) {
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$value = CPANPLUS::Internals::Constants::PREREQ_ASK();
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} elsif ( $value eq 'ignore' ) {
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$value = CPANPLUS::Internals::Constants::PREREQ_IGNORE();
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} else {
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die "*** Cannot convert option $key = '$value' to CPANPLUS version.\n";
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}
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} else {
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die "*** Cannot convert option $key to CPANPLUS version.\n";
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}
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}
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return @config;
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}
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sub _install_cpan {
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my @modules = @{ +shift };
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my @config = @{ +shift };
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my $installed = 0;
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my %args;
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_load_cpan();
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require Config;
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if (CPAN->VERSION < 1.80) {
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# no "sudo" support, probe for writableness
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return unless _can_write( MM->catfile( $CPAN::Config->{cpan_home}, 'sources' ) )
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and _can_write( $Config::Config{sitelib} );
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}
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# if we're root, set UNINST=1 to avoid trouble unless user asked for it.
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my $makeflags = $CPAN::Config->{make_install_arg} || '';
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$CPAN::Config->{make_install_arg} =
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join( ' ', split( ' ', $makeflags ), 'UNINST=1' )
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if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } );
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# don't show start-up info
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$CPAN::Config->{inhibit_startup_message} = 1;
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# set additional options
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while ( my ( $opt, $arg ) = splice( @config, 0, 2 ) ) {
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( $args{$opt} = $arg, next )
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if $opt =~ /^force$/; # pseudo-option
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$CPAN::Config->{$opt} = $arg;
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}
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local $CPAN::Config->{prerequisites_policy} = 'follow';
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while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
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MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall;
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print "*** Installing $pkg...\n";
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my $obj = CPAN::Shell->expand( Module => $pkg );
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my $success = 0;
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if ( $obj and defined( _version_check( $obj->cpan_version, $ver ) ) ) {
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my $pathname = $pkg;
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$pathname =~ s/::/\\W/;
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foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) {
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delete $INC{$inc};
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}
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my $rv = $args{force} ? CPAN::Shell->force( install => $pkg )
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: CPAN::Shell->install($pkg);
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$rv ||= eval {
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$CPAN::META->instance( 'CPAN::Distribution', $obj->cpan_file, )
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->{install}
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if $CPAN::META;
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};
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if ( $rv eq 'YES' ) {
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print "*** $pkg successfully installed.\n";
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$success = 1;
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}
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else {
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print "*** $pkg installation failed.\n";
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$success = 0;
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}
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$installed += $success;
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}
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else {
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print << ".";
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*** Could not find a version $ver or above for $pkg; skipping.
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.
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}
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MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall;
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}
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return $installed;
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}
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|
|
sub _has_cpanplus {
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|
return (
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$HasCPANPLUS = (
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$INC{'CPANPLUS/Config.pm'}
|
|
or _load('CPANPLUS::Shell::Default')
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|
)
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|
);
|
|
}
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|
|
|
# make guesses on whether we're under the CPAN installation directory
|
|
sub _under_cpan {
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|
require Cwd;
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|
require File::Spec;
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|
|
my $cwd = File::Spec->canonpath( Cwd::cwd() );
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|
my $cpan = File::Spec->canonpath( $CPAN::Config->{cpan_home} );
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return ( index( $cwd, $cpan ) > -1 );
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}
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|
|
sub _update_to {
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|
my $class = __PACKAGE__;
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|
my $ver = shift;
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|
|
|
return
|
|
if defined( _version_check( _load($class), $ver ) ); # no need to upgrade
|
|
|
|
if (
|
|
_prompt( "==> A newer version of $class ($ver) is required. Install?",
|
|
'y' ) =~ /^[Nn]/
|
|
)
|
|
{
|
|
die "*** Please install $class $ver manually.\n";
|
|
}
|
|
|
|
print << ".";
|
|
*** Trying to fetch it from CPAN...
|
|
.
|
|
|
|
# install ourselves
|
|
_load($class) and return $class->import(@_)
|
|
if $class->install( [], $class, $ver );
|
|
|
|
print << '.'; exit 1;
|
|
|
|
*** Cannot bootstrap myself. :-( Installation terminated.
|
|
.
|
|
}
|
|
|
|
# check if we're connected to some host, using inet_aton
|
|
sub _connected_to {
|
|
my $site = shift;
|
|
|
|
return (
|
|
( _load('Socket') and Socket::inet_aton($site) ) or _prompt(
|
|
qq(
|
|
*** Your host cannot resolve the domain name '$site', which
|
|
probably means the Internet connections are unavailable.
|
|
==> Should we try to install the required module(s) anyway?), 'n'
|
|
) =~ /^[Yy]/
|
|
);
|
|
}
|
|
|
|
# check if a directory is writable; may create it on demand
|
|
sub _can_write {
|
|
my $path = shift;
|
|
mkdir( $path, 0755 ) unless -e $path;
|
|
|
|
return 1 if -w $path;
|
|
|
|
print << ".";
|
|
*** You are not allowed to write to the directory '$path';
|
|
the installation may fail due to insufficient permissions.
|
|
.
|
|
|
|
if (
|
|
eval '$>' and lc(`sudo -V`) =~ /version/ and _prompt(
|
|
qq(
|
|
==> Should we try to re-execute the autoinstall process with 'sudo'?),
|
|
((-t STDIN) ? 'y' : 'n')
|
|
) =~ /^[Yy]/
|
|
)
|
|
{
|
|
|
|
# try to bootstrap ourselves from sudo
|
|
print << ".";
|
|
*** Trying to re-execute the autoinstall process with 'sudo'...
|
|
.
|
|
my $missing = join( ',', @Missing );
|
|
my $config = join( ',',
|
|
UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} )
|
|
if $Config;
|
|
|
|
return
|
|
unless system( 'sudo', $^X, $0, "--config=$config",
|
|
"--installdeps=$missing" );
|
|
|
|
print << ".";
|
|
*** The 'sudo' command exited with error! Resuming...
|
|
.
|
|
}
|
|
|
|
return _prompt(
|
|
qq(
|
|
==> Should we try to install the required module(s) anyway?), 'n'
|
|
) =~ /^[Yy]/;
|
|
}
|
|
|
|
# load a module and return the version it reports
|
|
sub _load {
|
|
my $mod = pop; # class/instance doesn't matter
|
|
my $file = $mod;
|
|
|
|
$file =~ s|::|/|g;
|
|
$file .= '.pm';
|
|
|
|
local $@;
|
|
return eval { require $file; $mod->VERSION } || ( $@ ? undef: 0 );
|
|
}
|
|
|
|
# Load CPAN.pm and it's configuration
|
|
sub _load_cpan {
|
|
return if $CPAN::VERSION;
|
|
require CPAN;
|
|
if ( $CPAN::HandleConfig::VERSION ) {
|
|
# Newer versions of CPAN have a HandleConfig module
|
|
CPAN::HandleConfig->load;
|
|
} else {
|
|
# Older versions had the load method in Config directly
|
|
CPAN::Config->load;
|
|
}
|
|
}
|
|
|
|
# compare two versions, either use Sort::Versions or plain comparison
|
|
sub _version_check {
|
|
my ( $cur, $min ) = @_;
|
|
return unless defined $cur;
|
|
|
|
$cur =~ s/\s+$//;
|
|
|
|
# check for version numbers that are not in decimal format
|
|
if ( ref($cur) or ref($min) or $cur =~ /v|\..*\./ or $min =~ /v|\..*\./ ) {
|
|
if ( ( $version::VERSION or defined( _load('version') )) and
|
|
version->can('new')
|
|
) {
|
|
|
|
# use version.pm if it is installed.
|
|
return (
|
|
( version->new($cur) >= version->new($min) ) ? $cur : undef );
|
|
}
|
|
elsif ( $Sort::Versions::VERSION or defined( _load('Sort::Versions') ) )
|
|
{
|
|
|
|
# use Sort::Versions as the sorting algorithm for a.b.c versions
|
|
return ( ( Sort::Versions::versioncmp( $cur, $min ) != -1 )
|
|
? $cur
|
|
: undef );
|
|
}
|
|
|
|
warn "Cannot reliably compare non-decimal formatted versions.\n"
|
|
. "Please install version.pm or Sort::Versions.\n";
|
|
}
|
|
|
|
# plain comparison
|
|
local $^W = 0; # shuts off 'not numeric' bugs
|
|
return ( $cur >= $min ? $cur : undef );
|
|
}
|
|
|
|
# nothing; this usage is deprecated.
|
|
sub main::PREREQ_PM { return {}; }
|
|
|
|
sub _make_args {
|
|
my %args = @_;
|
|
|
|
$args{PREREQ_PM} = { %{ $args{PREREQ_PM} || {} }, @Existing, @Missing }
|
|
if $UnderCPAN or $TestOnly;
|
|
|
|
if ( $args{EXE_FILES} and -e 'MANIFEST' ) {
|
|
require ExtUtils::Manifest;
|
|
my $manifest = ExtUtils::Manifest::maniread('MANIFEST');
|
|
|
|
$args{EXE_FILES} =
|
|
[ grep { exists $manifest->{$_} } @{ $args{EXE_FILES} } ];
|
|
}
|
|
|
|
$args{test}{TESTS} ||= 't/*.t';
|
|
$args{test}{TESTS} = join( ' ',
|
|
grep { !exists( $DisabledTests{$_} ) }
|
|
map { glob($_) } split( /\s+/, $args{test}{TESTS} ) );
|
|
|
|
my $missing = join( ',', @Missing );
|
|
my $config =
|
|
join( ',', UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} )
|
|
if $Config;
|
|
|
|
$PostambleActions = (
|
|
$missing
|
|
? "\$(PERL) $0 --config=$config --installdeps=$missing"
|
|
: "\$(NOECHO) \$(NOOP)"
|
|
);
|
|
|
|
return %args;
|
|
}
|
|
|
|
# a wrapper to ExtUtils::MakeMaker::WriteMakefile
|
|
sub Write {
|
|
require Carp;
|
|
Carp::croak "WriteMakefile: Need even number of args" if @_ % 2;
|
|
|
|
if ($CheckOnly) {
|
|
print << ".";
|
|
*** Makefile not written in check-only mode.
|
|
.
|
|
return;
|
|
}
|
|
|
|
my %args = _make_args(@_);
|
|
|
|
no strict 'refs';
|
|
|
|
$PostambleUsed = 0;
|
|
local *MY::postamble = \&postamble unless defined &MY::postamble;
|
|
ExtUtils::MakeMaker::WriteMakefile(%args);
|
|
|
|
print << "." unless $PostambleUsed;
|
|
*** WARNING: Makefile written with customized MY::postamble() without
|
|
including contents from Module::AutoInstall::postamble() --
|
|
auto installation features disabled. Please contact the author.
|
|
.
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub postamble {
|
|
$PostambleUsed = 1;
|
|
|
|
return << ".";
|
|
|
|
config :: installdeps
|
|
\t\$(NOECHO) \$(NOOP)
|
|
|
|
checkdeps ::
|
|
\t\$(PERL) $0 --checkdeps
|
|
|
|
installdeps ::
|
|
\t$PostambleActions
|
|
|
|
.
|
|
|
|
}
|
|
|
|
1;
|
|
|
|
__END__
|
|
|
|
#line 1003
|