perl - 如何在 Perl 中递归复制目录并过滤文件名？

Question

如何复制包含子目录的目录，不包括与 Windows 系统上的某个正则表达式匹配的文件或目录？

Answer 1

我会做这样的事情:

use File::Copy;
sub copy_recursively {
    my ($from_dir, $to_dir, $regex) = @_;
    opendir my($dh), $from_dir or die "Could not open dir '$from_dir': $!";
    for my $entry (readdir $dh) {
        next if $entry =~ /$regex/;
        my $source = "$from_dir/$entry";
        my $destination = "$to_dir/$entry";
        if (-d $source) {
            mkdir $destination or die "mkdir '$destination' failed: $!" if not -e $destination;
            copy_recursively($source, $destination, $regex);
        } else {
            copy($source, $destination) or die "copy failed: $!";
        }
    }
    closedir $dh;
    return;
}