eval results from the CPAN

eval

Acme-CPANAuthors-Misanthrope

view release on metacpan or search on metacpan

inc/Module/AutoInstall.pm view on Meta::CPAN

                {
                    print "missing." . ( $arg ? " (would need $arg)" : '' ) . "\n";
                }
                else
                {
                    # no need to check $arg as _version_cmp ($cur, undef) would satisfy >= above
                    print "too old. ($cur < $arg)\n";
                }

                push @required, $mod => $arg;
            }
        }

        next unless @required;

        my $mandatory = ( $feature eq '-core' or $core_all );

        if (
            !$SkipInstall
            and (
                $CheckOnly
                or ($mandatory and $UnderCPAN)
                or $AllDeps
                or _prompt(
                    qq{==> Auto-install the }
                      . ( @required / 2 )
                      . ( $mandatory ? ' mandatory' : ' optional' )
                      . qq{ module(s) from CPAN?},
                    $default ? 'y' : 'n',
                ) =~ /^[Yy]/
            )
          )
        {
            push( @Missing, @required );
            $DisabledTests{$_} = 1 for map { glob($_) } @skiptests;
        }

        elsif ( !$SkipInstall
            and $default
            and $mandatory
            and
            _prompt( qq{==> The module(s) are mandatory! Really skip?}, 'n', )
            =~ /^[Nn]/ )
        {
            push( @Missing, @required );
            $DisabledTests{$_} = 1 for map { glob($_) } @skiptests;
        }

        else {
            $DisabledTests{$_} = 1 for map { glob($_) } @tests;
        }
    }

    if ( @Missing and not( $CheckOnly or $UnderCPAN ) ) {
        require Config;
        print
"*** Dependencies will be installed the next time you type '$Config::Config{make}'.\n";

        # make an educated guess of whether we'll need root permission.
        print "    (You may need to do that as the 'root' user.)\n"
          if eval '$>';
    }
    print "*** $class configuration finished.\n";

    chdir $cwd;

    # import to main::
    no strict 'refs';
    *{'main::WriteMakefile'} = \&Write if caller(0) eq 'main';

    return (@Existing, @Missing);
}

sub _running_under {
    my $thing = shift;
    print <<"END_MESSAGE";
*** Since we're running under ${thing}, I'll just let it take care
    of the dependency's installation later.
END_MESSAGE
    return 1;
}

# Check to see if we are currently running under CPAN.pm and/or CPANPLUS;
# if we are, then we simply let it taking care of our dependencies
sub _check_lock {
    return unless @Missing or @_;

    my $cpan_env = $ENV{PERL5_CPAN_IS_RUNNING};

    if ($ENV{PERL5_CPANPLUS_IS_RUNNING}) {
        return _running_under($cpan_env ? 'CPAN' : 'CPANPLUS');
    }

    require CPAN;

    if ($CPAN::VERSION > '1.89') {
        if ($cpan_env) {
            return _running_under('CPAN');
        }
        return; # CPAN.pm new enough, don't need to check further
    }

    # last ditch attempt, this -will- configure CPAN, very sorry

    _load_cpan(1); # force initialize even though it's already loaded

    # Find the CPAN lock-file
    my $lock = MM->catfile( $CPAN::Config->{cpan_home}, ".lock" );
    return unless -f $lock;

    # Check the lock
    local *LOCK;
    return unless open(LOCK, $lock);

    if (
            ( $^O eq 'MSWin32' ? _under_cpan() : <LOCK> == getppid() )
        and ( $CPAN::Config->{prerequisites_policy} || '' ) ne 'ignore'
    ) {
        print <<'END_MESSAGE';

*** Since we're running under CPAN, I'll just let it take care

inc/Module/AutoInstall.pm view on Meta::CPAN

    return unless _connected_to('cpan.org');

    my %args = @config;
    my %failed;
    local *FAILED;
    if ( $args{do_once} and open( FAILED, '.#autoinstall.failed' ) ) {
        while (<FAILED>) { chomp; $failed{$_}++ }
        close FAILED;

        my @newmod;
        while ( my ( $k, $v ) = splice( @modules, 0, 2 ) ) {
            push @newmod, ( $k => $v ) unless $failed{$k};
        }
        @modules = @newmod;
    }

    if ( _has_cpanplus() and not $ENV{PERL_AUTOINSTALL_PREFER_CPAN} ) {
        _install_cpanplus( \@modules, \@config );
    } else {
        _install_cpan( \@modules, \@config );
    }

    print "*** $class installation finished.\n";

    # see if we have successfully installed them
    while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
        if ( _version_cmp( _load($pkg), $ver ) >= 0 ) {
            push @installed, $pkg;
        }
        elsif ( $args{do_once} and open( FAILED, '>> .#autoinstall.failed' ) ) {
            print FAILED "$pkg\n";
        }
    }

    close FAILED if $args{do_once};

    return @installed;
}

sub _install_cpanplus {
    my @modules   = @{ +shift };
    my @config    = _cpanplus_config( @{ +shift } );
    my $installed = 0;

    require CPANPLUS::Backend;
    my $cp   = CPANPLUS::Backend->new;
    my $conf = $cp->configure_object;

    return unless $conf->can('conf') # 0.05x+ with "sudo" support
               or _can_write($conf->_get_build('base'));  # 0.04x

    # if we're root, set UNINST=1 to avoid trouble unless user asked for it.
    my $makeflags = $conf->get_conf('makeflags') || '';
    if ( UNIVERSAL::isa( $makeflags, 'HASH' ) ) {
        # 0.03+ uses a hashref here
        $makeflags->{UNINST} = 1 unless exists $makeflags->{UNINST};

    } else {
        # 0.02 and below uses a scalar
        $makeflags = join( ' ', split( ' ', $makeflags ), 'UNINST=1' )
          if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } );

    }
    $conf->set_conf( makeflags => $makeflags );
    $conf->set_conf( prereqs   => 1 );

    

    while ( my ( $key, $val ) = splice( @config, 0, 2 ) ) {
        $conf->set_conf( $key, $val );
    }

    my $modtree = $cp->module_tree;
    while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
        print "*** Installing $pkg...\n";

        MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall;

        my $success;
        my $obj = $modtree->{$pkg};

        if ( $obj and _version_cmp( $obj->{version}, $ver ) >= 0 ) {
            my $pathname = $pkg;
            $pathname =~ s/::/\\W/;

            foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) {
                delete $INC{$inc};
            }

            my $rv = $cp->install( modules => [ $obj->{module} ] );

            if ( $rv and ( $rv->{ $obj->{module} } or $rv->{ok} ) ) {
                print "*** $pkg successfully installed.\n";
                $success = 1;
            } else {
                print "*** $pkg installation cancelled.\n";
                $success = 0;
            }

            $installed += $success;
        } else {
            print << ".";
*** Could not find a version $ver or above for $pkg; skipping.
.
        }

        MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall;
    }

    return $installed;
}

sub _cpanplus_config {
	my @config = ();
	while ( @_ ) {
		my ($key, $value) = (shift(), shift());
		if ( $key eq 'prerequisites_policy' ) {
			if ( $value eq 'follow' ) {
				$value = CPANPLUS::Internals::Constants::PREREQ_INSTALL();
			} elsif ( $value eq 'ask' ) {
				$value = CPANPLUS::Internals::Constants::PREREQ_ASK();
			} elsif ( $value eq 'ignore' ) {
				$value = CPANPLUS::Internals::Constants::PREREQ_IGNORE();
			} else {
				die "*** Cannot convert option $key = '$value' to CPANPLUS version.\n";
			}
		} else {
			die "*** Cannot convert option $key to CPANPLUS version.\n";
		}
	}
	return @config;
}

sub _install_cpan {
    my @modules   = @{ +shift };
    my @config    = @{ +shift };
    my $installed = 0;
    my %args;

    _load_cpan();
    require Config;

    if (CPAN->VERSION < 1.80) {
        # no "sudo" support, probe for writableness
        return unless _can_write( MM->catfile( $CPAN::Config->{cpan_home}, 'sources' ) )
                  and _can_write( $Config::Config{sitelib} );
    }

    # if we're root, set UNINST=1 to avoid trouble unless user asked for it.
    my $makeflags = $CPAN::Config->{make_install_arg} || '';
    $CPAN::Config->{make_install_arg} =
      join( ' ', split( ' ', $makeflags ), 'UNINST=1' )
      if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } );

    # don't show start-up info
    $CPAN::Config->{inhibit_startup_message} = 1;

    # set additional options
    while ( my ( $opt, $arg ) = splice( @config, 0, 2 ) ) {
        ( $args{$opt} = $arg, next )
          if $opt =~ /^force$/;    # pseudo-option
        $CPAN::Config->{$opt} = $arg;
    }

    local $CPAN::Config->{prerequisites_policy} = 'follow';

    while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) {
        MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall;

        print "*** Installing $pkg...\n";

        my $obj     = CPAN::Shell->expand( Module => $pkg );
        my $success = 0;

        if ( $obj and _version_cmp( $obj->cpan_version, $ver ) >= 0 ) {
            my $pathname = $pkg;
            $pathname =~ s/::/\\W/;

            foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) {
                delete $INC{$inc};
            }

            my $rv = $args{force} ? CPAN::Shell->force( install => $pkg )
                                  : CPAN::Shell->install($pkg);
            $rv ||= eval {
                $CPAN::META->instance( 'CPAN::Distribution', $obj->cpan_file, )
                  ->{install}
                  if $CPAN::META;
            };

            if ( $rv eq 'YES' ) {
                print "*** $pkg successfully installed.\n";
                $success = 1;
            }
            else {
                print "*** $pkg installation failed.\n";
                $success = 0;
            }

            $installed += $success;
        }
        else {
            print << ".";
*** Could not find a version $ver or above for $pkg; skipping.
.
        }

        MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall;
    }

    return $installed;
}

sub _has_cpanplus {
    return (
        $HasCPANPLUS = (
            $INC{'CPANPLUS/Config.pm'}
              or _load('CPANPLUS::Shell::Default')
        )
    );
}

# make guesses on whether we're under the CPAN installation directory
sub _under_cpan {
    require Cwd;
    require File::Spec;

    my $cwd  = File::Spec->canonpath( Cwd::cwd() );
    my $cpan = File::Spec->canonpath( $CPAN::Config->{cpan_home} );

    return ( index( $cwd, $cpan ) > -1 );
}

sub _update_to {
    my $class = __PACKAGE__;
    my $ver   = shift;

    return
      if _version_cmp( _load($class), $ver ) >= 0;  # 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 and $CPAN::Config and not @_;
    require CPAN;

    # CPAN-1.82+ adds CPAN::Config::AUTOLOAD to redirect to
    #    CPAN::HandleConfig->load. CPAN reports that the redirection
    #    is deprecated in a warning printed at the user.

    # CPAN-1.81 expects CPAN::HandleConfig->load, does not have
    #   $CPAN::HandleConfig::VERSION but cannot handle
    #   CPAN::Config->load

    # Which "versions expect CPAN::Config->load?

    if ( $CPAN::HandleConfig::VERSION
        || CPAN::HandleConfig->can('load')
    ) {
        # 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
# return values same as <=>
sub _version_cmp {
    my ( $cur, $min ) = @_;
    return -1 unless defined $cur;  # if 0 keep comparing
    return 1 unless $min;

    $cur =~ s/\s+$//;

    # 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);
        }
        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 );
        }

        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;

( run in 1.726 second using v1.01-cache-2.11-cpan-98e64b0badf )