#!/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 takes a file mapping CSV file as input (see flist_s10_5-8-4.csv
# for an example), a perl build directory and an ON workspace and outputs a ksh
# script containing the SCCS and Teamware commands necessary to copy the
# required files from the perl build directory into the ON workspace.  Note that
# the 'sleep 1' commands are because Teamware can't cope with rapid check-ins of
# large numbers of files.
#

use strict;
use warnings;
use POSIX qw(uname);

# SCCS comment, perl versions.
our $Comment =
    qq('5040539 Perl 5.8.4 should be integrated into S10');
our $Ver     = '5.8.4';
our $PrevVer = '5.8.3';

# Cache of already-created directories.
our %DirsMade;

#
# Make a directory if it hasn't already been made.
#
sub make_dir
{
	my ($dir) = @_;

	if (! exists($DirsMade{$dir})) {
		print("mkdir -p $dir\n");
		$DirsMade{$dir}++;
	}
}

#
# Main.
#

# Basic sanity checks.
@ARGV == 3 || die("Usage is $0 <mapping file> <perl build dir> <workspace>\n");
my ($mapfile, $bld, $ws) = @ARGV;
die("$bld is not a perl build dir\n") if (! -f "$bld/config.sh");
die("$ws is not a workspace\n") if (! -d "$ws/Codemgr_wsdata");

# Work out directory locations.
my $ver_dst = "$ws/usr/src/cmd/perl/$Ver";
my $prev_ver_dst = "$ws/usr/src/cmd/perl/$PrevVer";
my $arch = ((uname())[4] eq 'i86pc') ? 'i386' : 'sparc';

# Read in the mapping file.
my ($fh, $line, %file);
open($fh, '<', $mapfile) || die("Can't open $mapfile: $!\n");
while (defined($line = <$fh>) && $line !~ m{^"Path",}) {
	;
}
while (defined($line = <$fh>)) {
	chomp($line);
	my @field;
	push(@field, $+) while $line =~
	    m{["']([^"'\\]*(?:\\.[^"'\\]*)*)["'],?|([^,]+),?|,}g;
	push(@field, undef) if (substr($line, -1, 1) eq ',');
	my $p = shift(@field);
	my $f = shift(@field);
	# We just want the s10 column.
	$file{$p}{$f} = defined($field[3]) ? $field[3] : '';
}
close($fh);

# Process the mappings.
print("#!/bin/ksh\n\nunalias rm\ntypeset -r comment=$Comment\n",
    "set -ex\nexport CODEMGR_WS=$ws\n\n");
foreach my $p (sort(keys(%file))) {
	foreach my $f (sort(keys(%{$file{$p}}))) {
		my $d = $file{$p}{$f};
		my $pf = ($p ne '' ? "$p/" : $p) . $f;
		my $cpf = ($p ne '' ? "$p/" : $p) . ",$f";

		# If it is to go into the distrib directory.
		if ($d eq 'distrib') {
			make_dir("$ver_dst/distrib/$p");
			print("cp $bld/$pf $ver_dst/distrib/$pf\n");
			print("( cd $ver_dst/distrib/$p && ",
			    "sccs create $f -y\"\$comment\" )\n");
			print("rm -f $ver_dst/distrib/$cpf\n");
			print("sleep 1\n");

		# If it is to go into the arch directory.
		} elsif ($d eq 'arch') {
			make_dir("$ver_dst/$arch");
			print("cp $bld/$pf $ver_dst/$arch/$f\n");
			print("( cd $ver_dst/$arch/$p && ",
			    "sccs create $f -y\"\$comment\" )\n");
			print("rm -f $ver_dst/$arch/$cpf\n");
			print("sleep 1\n");

		# If it is to be copied forwards from the last version.
		} elsif ($d eq 'fwd') {
			make_dir("$ver_dst/distrib/$p");
			print("( cd $prev_ver_dst/distrib/$p && ",
			    "sccs edit $f && cp $f $ver_dst/distrib/$pf && ",
			    "sccs unedit $f )\n");
			print("( cd $ver_dst/distrib/$p && ",
			    "sccs create $f -y\"\$comment\" )\n");
			print("rm -f $ver_dst/distrib/$cpf\n");
			print("sleep 1\n");
		}
	}
}

# Write a fake MANIFEST file, for 'make test'.
print("cat > $ver_dst/distrib/MANIFEST <<EOF\n");
foreach my $p (sort(keys(%file))) {
	foreach my $f (sort(keys(%{$file{$p}}))) {
		print(($p ne '' ? "$p/" : $p) . $f . "\n")
		    if ($file{$p}{$f} eq 'distrib');
	}
}
print("EOF\n");
print("( cd $ver_dst/distrib && sccs create MANIFEST -y\"\$comment\" )\n");
print("rm -f $ver_dst/distrib/,MANIFEST\n");

print("echo SUCCESS\n");