next;
}
- # Extract the file to the temporary directory.
- $tar->extract_file("$packed_file", "$destination");
+ # Check if the destination file exists.
+ unless(-e "$destination") {
+ # Extract the file to the temporary directory.
+ $tar->extract_file("$packed_file", "$destination");
+ } else {
+ # Load perl module to deal with temporary files.
+ use File::Temp;
+
+ # Generate temporary file name, located in the temporary rules directory and a suffix of ".tmp".
+ my $tmp = File::Temp->new( SUFFIX => ".tmp", DIR => "$tmp_rules_directory", UNLINK => 0 );
+ my $tmpfile = $tmp->filename();
+
+ # Extract the file to the new temporary file name.
+ $tar->extract_file("$packed_file", "$tmpfile");
+
+ # Open the the existing file.
+ open(DESTFILE, ">>", "$destination") or die "Could not open $destination. $!\n";
+ open(TMPFILE, "<", "$tmpfile") or die "Could not open $tmpfile. $!\n";
+
+ # Loop through the content of the temporary file.
+ while (<TMPFILE>) {
+ # Append the content line by line to the destination file.
+ print DESTFILE "$_";
+ }
+
+ # Close the file handles.
+ close(TMPFILE);
+ close(DESTFILE);
+
+ # Remove the temporary file.
+ unlink("$tmpfile");
+ }
}
}
}