forked from lix-project/lix
167e36a5c3
This prevents unnecessary and slow rebuilds of NARs that already exist in the binary cache.
38 lines
732 B
Perl
38 lines
732 B
Perl
package Nix::Utils;
|
||
|
||
our @ISA = qw(Exporter);
|
||
our @EXPORT = qw(checkURL uniq writeFile readFile);
|
||
|
||
$urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*]+ )";
|
||
|
||
sub checkURL {
|
||
my ($url) = @_;
|
||
die "invalid URL ‘$url’\n" unless $url =~ /^ $urlRE $ /x;
|
||
}
|
||
|
||
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;
|
||
print TMP "$s" or die;
|
||
close TMP or die;
|
||
}
|
||
|
||
sub readFile {
|
||
local $/ = undef;
|
||
my ($fn) = @_;
|
||
open TMP, "<$fn" or die;
|
||
my $s = <TMP>;
|
||
close TMP or die;
|
||
return $s;
|
||
}
|