source: trunk/essentials/dev-lang/perl/utils/perlivp.PL@ 3280

#!/usr/local/bin/perl

use Config;
use File::Basename;
use Cwd;

# List explicitly here the variables you want Configure to
# generate.  Metaconfig only looks for shell variables, so you
# have to mention them as if they were shell variables, not
# %Config entries:
#  $startperl
#  $perlpath
#  $eunicefix

# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
my $origdir = cwd;
chdir dirname($0);
my $file = basename($0, '.PL');
$file .= '.com' if $^O eq 'VMS';

# Create output file.
open OUT,">$file" or die "Can't create $file: $!";

print "Extracting $file (with variable substitutions)\n";

# In this section, perl variables will be expanded during extraction.
# You can use $Config{...} to use Configure variables.

print OUT <<"!GROK!THIS!";
$Config{'startperl'}
    eval 'exec $Config{'perlpath'} -S \$0 \${1+"\$@"}'
        if \$running_under_some_shell;
!GROK!THIS!

# In the following, perl variables are not expanded during extraction.

print OUT <<'!NO!SUBS!';

# perlivp V 0.02


sub usage {
    warn "@_\n" if @_;
    print << "    EOUSAGE";
Usage:

    $0 [-a] [-p] [-v] | [-h]

    -a Run all tests (default is to skip .ph tests)
    -p Print a preface before each test telling what it will test.
    -v Verbose mode in which extra information about test results
       is printed.  Test failures always print out some extra information
       regardless of whether or not this switch is set.
    -h Prints this help message.
    EOUSAGE
    exit;
}

use vars qw(%opt); # allow testing with older versions (do not use our)

@opt{ qw/? H h P p V v/ } = qw(0 0 0 0 0 0 0);

while ($ARGV[0] =~ /^-/) {
    $ARGV[0] =~ s/^-//; 
    for my $flag (split(//,$ARGV[0])) {
        usage() if '?' =~ /\Q$flag/;
        usage() if 'h' =~ /\Q$flag/;
        usage() if 'H' =~ /\Q$flag/;
        usage("unknown flag: `$flag'") unless 'HhPpVva' =~ /\Q$flag/;
        warn "$0: `$flag' flag already set\n" if $opt{$flag}++;
    } 
    shift;
}

$opt{p}++ if $opt{P};
$opt{v}++ if $opt{V};

my $pass__total = 0;
my $error_total = 0;
my $tests_total = 0;

!NO!SUBS!

# We cannot merely check the variable `$^X' in general since on many 
# Unixes it is the basename rather than the full path to the perl binary.
my $perlpath = '';
if (defined($Config{'perlpath'})) { $perlpath = $Config{'perlpath'}; }

# The useithreads Config variable plays a role in whether or not
# threads and threads/shared work when C<use>d.  They apparently always
# get installed on systems that can run Configure.
my $useithreads = '';
if (defined($Config{'useithreads'})) { $useithreads = $Config{'useithreads'}; }

print OUT <<"!GROK!THIS!";
my \$perlpath = '$perlpath';
my \$useithreads = '$useithreads';
!GROK!THIS!

print OUT <<'!NO!SUBS!';

print "## Checking Perl binary via variable `\$perlpath' = $perlpath.\n" if $opt{'p'};

if (-x $perlpath) {
    print "## Perl binary `$perlpath' appears executable.\n" if $opt{'v'};
    print "ok 1\n";
    $pass__total++;
}
else {
    print "# Perl binary `$perlpath' does not appear executable.\n";
    print "not ok 1\n";
    $error_total++;
}
$tests_total++;


print "## Checking Perl version via variable `\$]'.\n" if $opt{'p'};

!NO!SUBS!

print OUT <<"!GROK!THIS!";
my \$ivp_VERSION = $];

!GROK!THIS!
print OUT <<'!NO!SUBS!';
if ($ivp_VERSION eq $]) {
    print "## Perl version `$]' appears installed as expected.\n" if $opt{'v'};
    print "ok 2\n";
    $pass__total++;
}
else {
    print "# Perl version `$]' installed, expected $ivp_VERSION.\n";
    print "not ok 2\n";
    $error_total++;
}
$tests_total++;


print "## Checking roots of the Perl library directory tree via variable `\@INC'.\n" if $opt{'p'};

my $INC_total = 0;
my $INC_there = 0;
foreach (@INC) {
    next if $_ eq '.'; # skip -d test here
    if ($^O eq 'MacOS') {
        next if $_ eq ':'; # skip -d test here
        next if $_ eq 'Dev:Pseudo:'; # why is this in @INC?
    }
    if (-d $_) {
        print "## Perl \@INC directory `$_' exists.\n" if $opt{'v'};
        $INC_there++;
    }
    else {
        print "# Perl \@INC directory `$_' does not appear to exist.\n";
    }
    $INC_total++;
}
if ($INC_total == $INC_there) {
    print "ok 3\n";
    $pass__total++;
}
else {
    print "not ok 3\n";
    $error_total++;
}
$tests_total++;


print "## Checking installations of modules necessary for ivp.\n" if $opt{'p'};

my $needed_total = 0;
my $needed_there = 0;
foreach (qw(Config.pm ExtUtils/Installed.pm)) {
    $@ = undef;
    $needed_total++;
    eval "require \"$_\";";
    if (!$@) {
        print "## Module `$_' appears to be installed.\n" if $opt{'v'};
        $needed_there++;
    }
    else {
        print "# Needed module `$_' does not appear to be properly installed.\n";
    }
    $@ = undef;
}
if ($needed_total == $needed_there) {
    print "ok 4\n";
    $pass__total++;
}
else {
    print "not ok 4\n";
    $error_total++;
}
$tests_total++;


print "## Checking installations of extensions built with perl.\n" if $opt{'p'};

use Config;

my $extensions_total = 0;
my $extensions_there = 0;
if (defined($Config{'extensions'})) {
    my @extensions = split(/\s+/,$Config{'extensions'});
    foreach (@extensions) {
        next if ($_ eq '');
        if ( $useithreads !~ /define/i ) {
            next if ($_ eq 'threads');
            next if ($_ eq 'threads/shared');
        }
        next if ($_ eq 'Devel/DProf'); 
           # VMS$ perl  -e "eval ""require \""Devel/DProf.pm\"";"" print $@"
           # \NT> perl  -e "eval \"require 'Devel/DProf.pm'\"; print $@"
           # DProf: run perl with -d to use DProf.
           # Compilation failed in require at (eval 1) line 1.
        eval " require \"$_.pm\"; ";
        if (!$@) {
            print "## Module `$_' appears to be installed.\n" if $opt{'v'};
            $extensions_there++;
        }
        else {
            print "# Required module `$_' does not appear to be properly installed.\n";
            $@ = undef;
        }
        $extensions_total++;
    }

    # A silly name for a module (that hopefully won't ever exist).
    # Note that this test serves more as a check of the validity of the
    # actuall required module tests above.
    my $unnecessary = 'bLuRfle';

    if (!grep(/$unnecessary/, @extensions)) {
        $@ = undef;
        eval " require \"$unnecessary.pm\"; ";
        if ($@) {
            print "## Unnecessary module `$unnecessary' does not appear to be installed.\n" if $opt{'v'};
        }
        else {
            print "# Unnecessary module `$unnecessary' appears to be installed.\n";
            $extensions_there++;
        }
    }
    $@ = undef;
}
if ($extensions_total == $extensions_there) {
    print "ok 5\n";
    $pass__total++;
}
else {
    print "not ok 5\n";
    $error_total++;
}
$tests_total++;


print "## Checking installations of later additional extensions.\n" if $opt{'p'};

use ExtUtils::Installed;

my $installed_total = 0;
my $installed_there = 0;
my $version_check = 0;
my $installed = ExtUtils::Installed -> new();
my @modules = $installed -> modules();
my @missing = ();