0
0
Fork 0
forked from lix-project/lix
lix/perl/lib/Nix/Utils.pm

48 lines
1 KiB
Perl
Raw Normal View History

2012-08-27 15:11:30 +00:00
package Nix::Utils;
2014-08-20 15:00:17 +00:00
use utf8;
use File::Temp qw(tempdir);
our @ISA = qw(Exporter);
our @EXPORT = qw(checkURL uniq writeFile readFile mkTempDir);
2012-08-27 15:11:30 +00:00
$urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*]+ )";
sub checkURL {
my ($url) = @_;
die "invalid URL '$url'\n" unless $url =~ /^ $urlRE $ /x;
2012-08-27 15:11:30 +00:00
}
2012-08-27 15:28:34 +00:00
sub uniq {
my %seen;
my @res;
foreach my $name (@_) {
next if $seen{$name};
$seen{$name} = 1;
push @res, $name;
}
return @res;
}
sub writeFile {
my ($fn, $s) = @_;
open TMP, ">$fn" or die "cannot create file '$fn': $!";
print TMP "$s" or die;
close TMP or die;
}
sub readFile {
local $/ = undef;
my ($fn) = @_;
open TMP, "<$fn" or die "cannot open file '$fn': $!";
my $s = <TMP>;
close TMP or die;
return $s;
}
sub mkTempDir {
my ($name) = @_;
return tempdir("$name.XXXXXX", CLEANUP => 1, DIR => $ENV{"TMPDIR"} // $ENV{"XDG_RUNTIME_DIR"} // "/tmp")
|| die "cannot create a temporary directory";
}