#!/usr/bin/perl
use strict;
use warnings;
use VCS::Lite;
use Getopt::Long;
my $output;
GetOptions(
'output=s' => \$output
);
if (@ARGV != 3) {
print <<END;
Usage: $0 [--output outfile] original changed1 changed2
If --output is not specified, the results are put in place
of the original, and the original is renamed to *.orig
END
exit;
}
my ($orig,$chg1,$chg2) = @ARGV;
my $el1 = VCS::Lite->new($orig);
my $el2 = VCS::Lite->new($chg1);
my $el3 = VCS::Lite->new($chg2);
my $el4 = $el1->merge($el2,$el3) or die "Merge failed";
if (!$output) {
rename $orig, "$orig.orig";
$output = $orig;
}
open MERGE,">$output";
print MERGE $el4->text;
close MERGE;