Cross Reference: /illumos-gate/usr/src/cmd/perl/5.8.4/utils/port/MapFiles

	MapFiles revision 7c478bd95313f5f23a4c958a745db2134aa03244


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#!/usr/perl5/5.8.4/bin/perl
#
# Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#ident	"%Z%%M%	%I%	%E% SMI"
#
# This script works out which files from a stock Perl 5.8.3 distribution need
# to be integrated into ON.  It MUST be run inside a stock perl distribution
# directory AFTER the InstallPerl script has been run, as it uses the contents
# of the MANIFEST, build.touched, test.log and install.packlist files to figure
# out which files are needed in ON.  The parameter for this script is the name
# of the output CSV file, which can be viewed in StarOffice.
#

use strict;
use warnings;

#
# Compare two files, return 0 for different, 1 for the same.
#
sub file_cmp
{
	my ($f1, $f2) = @_;

	# Quick check - they must exist and be the same size.
	return (0) unless (-e $f1 && -e $f2 && -s $f1 == -s $f2);

	# Open the files.
	my ($fh1, $fh2);
	open($fh1, '<', $f1) || return (0);
	open($fh2, '<', $f2) || return (0);

	# Compare.
	my ($len1, $len2);
	while (1) {
		my ($buf1, $buf2);
		$len1 = sysread($fh1, $buf1, 4096);
		$len2 = sysread($fh2, $buf2, 4096);
		last if ($len1 == 0 && $len2 == 0);
		if ($len1 != $len2 || $buf1 ne $buf2) {
			$len1 = -1;
			$len2 = -2;
			last;
		}
	}
	close($fh1) || return (0);
	close($fh2) || return (0);
	return ($len1 == $len2 ? 1 : 0);
}

#
# Main.
#

# %file is indexed by (path, filename)
my ($infh, $outfh, $line, %file);

# Check args.
die("Args are <output.csv>\n") unless (@ARGV == 1);
my ($outf) = @ARGV;

# Check cwd is a valid perl build dir.
die("Must be run from a perl build directory\n")
    unless (-f 'config.over' && -f 'MANIFEST' && -f 'Configure' &&
    -f 'libperl.so' && -f 'build.touched' && -f 'install.packlist');

# Open output CSV file.
open($outfh, '>', $outf) || die("Can't open $outf: $!\n");

# Read the MANIFEST.
open($infh, '<', 'MANIFEST') || die("Can't open MANIFEST: $!\n");
while (defined($line = <$infh>)) {
	chomp($line);
	$line = (split(m{\s+}, $line, 2))[0];
	my ($p, $f);
	if ($line =~ m{/}) {
		($p, $f) = $line =~ m{^(.*)/(.*)$};
	} else {
		$p = '';
		$f = $line;
	}
	$file{$p}{$f}{mfst} = 'X';
}
close($infh);

# Read build.touched.
open($infh, '<', 'build.touched') || die("Can't open build.touched: $!\n");
while (defined($line = <$infh>)) {
	chomp($line);
	my ($p, $f);
	if ($line =~ m{/}) {
		($p, $f) = $line =~ m{^(.*)/(.*)$};
	} else {
		$p = '';
		$f = $line;
	}
	$file{$p}{$f}{bld} = 'X';
}
close($infh);

# Read test.log.
open($infh, '<', 'test.log') || die("Can't open test.log: $!\n");
my %test;
while (defined($line = <$infh>)) {
	chomp($line);
	if ($line =~ m{^([\w/-]+)\.{2,}} && $line !~ /\.skipping test/) {
		my $file = $1;
		if (-f ($_ = "$file.t")) {
			$test{$_} = 1;
		} elsif ($file =~ m{/test$} && -f ($_ = "$file.pl")) {
			$test{$_} = 1;
		}
	}
}
close($infh);

# Read install.packlist and build a hash indexed by (filename, path).
my %inst;
open($infh, '<', 'install.packlist')
    || die("Can't open install.packlist: $!\n");
$line = <$infh>;
chomp($line);
my $inst_pfx;
die("Invalid install.packlist\n")
    unless (($inst_pfx) = $line =~ /^PREFIX:\s+(.*)$/);
while (defined($line = <$infh>)) {
	# Skip manpages and bin/perlX.Y.Z
	#next if ($line =~ m{^(?:man/man\d+/|bin/perl\d+\.\d+\.\d+)});
	chomp($line);
	my ($p, $f);
	if ($line =~ m{/}) {
		($p, $f) = $line =~ m{^(.*)/(.*)$};
	} else {
		$p = '';
		$f = $line;
	}
	$inst{$f}{$p} = 1;
}
close($infh);

# Go through the MANIFEST files, trying to match to installed files.
foreach my $p (keys(%file)) {
        foreach my $f (keys(%{$file{$p}})) {
                my $v = $file{$p}{$f};
		next unless (exists($v->{mfst}));

		#
		# Easy cases: Files that map directly into the install tree
		#
		if (exists($inst{$f}{$p})) {
			$v->{inst} = 'X';
			delete($inst{$f}{$p});

		#
		# Brute force: Compare the manifest file against each file with
		# the same name in the install tree.
		#
		} else {
			foreach my $ip (keys(%{$inst{$f}})) {
				my ($mfst, $inst);
				$mfst = "$p/" if ($p ne '');
				$mfst .= $f;
				$inst = $inst_pfx;
				$inst .= "/$ip" if ($ip);
				$inst .= "/$f";
				if (file_cmp($mfst, $inst)) {
					$v->{inst} = 'X';
					delete($inst{$f}{$p});
				}
			}
		}
	}

}
undef(%inst);

# Intuit where we think the 5.8.x files should go in S10.
foreach my $p (keys(%file)) {
        foreach my $f (keys(%{$file{$p}})) {
                my $v = $file{$p}{$f};
		my $pf = ($p ne '' ? "$p/" : $p) . $f;

		#
		# Some directories and files we can ignore completely,
		# for example other architectures.
		#
		if ($p =~ m{^(?:Cross|NetWare|apollo|beos|cydwin|djgpp|emacs|
		    epoc|jpl|mint|mpeix|os2|plan9|qnx|uts|vmesa|vms|vos|win32|
		    wince|t/win32|lib/Thread|ext/threads)}x ||
		    $f =~ m{Makefile.SH|Thread.pm}) {
			$v->{s10} = 'skip';

		#
		# Stuff that we don't want from the top-level directory.
		#
		} elsif ($p eq '' &&
		    $f =~ m{^(?:[Cc]onfigure.*|Makefile\.SH|Policy_sh.SH|
		    cflags\.SH|makeaperl\.SH|makedepend\.SH|makedir\.SH|
		    mv-if-diff)$}x) {
			$v->{s10} = 'skip';

		#
		# We don't want README and other such files.
		#
		} elsif (($f =~ m{^(?:(?:readme|change|notes|patching).*|
		    manifest)$}ix && $f !~ m{\.e2x$}) ||
		    ($f =~ m{^todo}i && $p !~ m{^t/|/t/|/t$})) {
			$v->{s10} = 'skip';

		#
		# Pod files need a little finesse.
		# We don't want any that are links to README files in the
		# top-level directory, unless they are the Solaris or Unicode
		# ones.  We also exclude some others that aren't relevant,
		# and include some that would otherwise be missed.
		#
		} elsif (($_) = $f =~ m{(\w+)\.pod$}) {
			$_ =~ s{^perl}{};
			if (exists($file{''}{"README.$_"})) {
				if ($_ =~ m{^(?:solaris|cn|jp|ko|tw)$}) {
					$v->{s10} = 'distrib';
				} else {
					$v->{s10} = 'skip';
				}
			} elsif (($v->{mfst} && ($v->{bld} || $v->{inst})) &&
			    $_ !~ m{^(?:Config|fork|othrtut|thrtut|pumpkin|
			    Win32|repository)$}x) {
				$v->{s10} = 'distrib';
			# perldelta.pod is a symlink, but we need to copy it.
			} elsif ($_ eq 'delta') {
				$v->{s10} = 'distrib';
			} else {
				$v->{s10} = 'skip';
			}

		#
		# We only want test scripts that are actually run.
		#
		} elsif ($f =~ m{\.t$} || $f eq 'test.pl') {
			if (exists($test{$pf}) || $pf eq 't/test.pl') {
				$v->{s10} = 'distrib';
			} else {
				$v->{s10} = 'skip';
			}

		#
		# Anything in the MANIFEST and touched during the
		# build and install should be included.
		#
		} elsif ($v->{mfst} && ($v->{bld} || $v->{inst})) {
			$v->{s10} = 'distrib';

		} else {
			$v->{s10} = 'skip';

		}
        }
}

#
# Files that we need to treat specially.
#
$file{'..'}{'extract_config.sh'}{s10}  = 'fwd';
$file{'..'}{'extract_makeext.sh'}{s10} = 'fwd';
$file{'..'}{'get_no_keywords.sh'}{s10} = 'fwd';
$file{'..'}{'Makefile'}{s10}           = 'fwd';
$file{'..'}{'req.flg'}{s10}            = 'fwd';
$file{'../contrib'}{'Makefile'}{s10}   = 'fwd';
$file{''}{'config.sh'}{s10}            = 'arch';
$file{''}{'installperl'}{s10}          = 'distrib';
$file{''}{'utils.lst'}{s10}            = 'distrib';
$file{''}{'Makefile'}{s10}             = 'fwd';
$file{''}{'Makefile.lib'}{s10}         = 'fwd';
$file{'pod'}{'Makefile'}{s10}          = 'fwd';
$file{'utils'}{'Makefile'}{s10}        = 'fwd';
$file{'x2p'}{'Makefile'}{s10}          = 'fwd';

# Write CSV contents.
print $outfh (qq{"Path","File","mfst","bld","inst","s10"\n});
foreach my $p (sort(keys(%file))) {
	foreach my $f (sort(keys(%{$file{$p}}))) {
		print $outfh (qq{"$p","$f"});
		foreach my $c (qw{mfst bld inst s10}) {
			print $outfh (',');
			print $outfh (qq{"$file{$p}{$f}{$c}"})
			    if (defined($file{$p}{$f}{$c}));
		}
	print $outfh ("\n");
	}
}
close($outfh);