openssl/util/mkdir-p.pl
Sebastian Andrzej Siewior 70a56b9147 utils/mkdir-p: check if dir exists also after mkdir failed
with "make install -j8" it happens very often that two or more make
instances are creating the same directory in parallel. As a result one
instace creates the directory and second mkdir fails because the
directory exists already (but it did not while testing for it earlier).

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1204)
2016-06-23 11:10:29 -04:00

44 lines
974 B
Perl
Executable file

#! /usr/bin/env perl
# Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# On some systems, the -p option to mkdir (= also create any missing parent
# directories) is not available.
my $arg;
foreach $arg (@ARGV) {
$arg =~ tr|\\|/|;
&do_mkdir_p($arg);
}
sub do_mkdir_p {
local($dir) = @_;
$dir =~ s|/*\Z(?!\n)||s;
if (-d $dir) {
return;
}
if ($dir =~ m|[^/]/|s) {
local($parent) = $dir;
$parent =~ s|[^/]*\Z(?!\n)||s;
do_mkdir_p($parent);
}
unless (mkdir($dir, 0777)) {
if (-d $dir) {
# We raced against another instance doing the same thing.
return;
}
die "Cannot create directory $dir: $!\n";
}
print "created directory `$dir'\n";
}