| #!/usr/bin/perl -w |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| use strict; |
| use File::Basename; |
| use File::Copy; |
| use File::Find; |
| use File::Path qw(mkpath); |
| |
| require 5.010; |
| |
| my $srcdir; |
| my $destdir; |
| |
| sub process_file { |
| return if $_ =~ /^\./; |
| |
| my $rel_to_srcdir = substr($File::Find::name, length($srcdir)); |
| my $destfile = "$destdir$rel_to_srcdir"; |
| |
| if (-d $File::Find::name) { |
| # If the directory is empty, it won't get created. |
| # Otherwise it will get created when copying a file. |
| } |
| else { |
| if (-f $destfile) { |
| # Preserve it. |
| } |
| else { |
| # Create it. |
| my $dir = dirname($destfile); |
| if (! -e $dir) { |
| mkpath($dir) or die "Failed to create directory $dir: $!"; |
| } |
| copy($File::Find::name, $destfile) or die "Copy $File::Find::name->$destfile failed: $!"; |
| } |
| } |
| } |
| |
| $srcdir = shift; |
| $destdir = shift; |
| if (scalar(@ARGV) > 0) { |
| my $mode = shift; |
| if ($mode eq "ifdestmissing") { |
| # Normally the check for possible overwrite is performed on a |
| # file-by-file basis. If "ifdestmissing" is specified and the |
| # destination directory exists, bail out. |
| if (-d $destdir) { |
| print "[PRESERVING EXISTING SUBDIR $destdir]\n"; |
| exit(0); |
| } |
| } |
| else { |
| die "bad mode $mode"; |
| } |
| } |
| find(\&process_file, ($srcdir)); |