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-rw-r--r--build/cpR_noreplace.pl71
1 files changed, 71 insertions, 0 deletions
diff --git a/build/cpR_noreplace.pl b/build/cpR_noreplace.pl
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+#!/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));