-use JSON;
-
-if (@ARGV) {
- require Time::Piece;
- require LWP::UserAgent;
- require File::stat;
-
- my $target = 'browser-support.inc.pl';
- my $source = 'http://caniuse.com/data.json';
-
- my $ua = LWP::UserAgent->new;
- $ua->agent('sheet.shiar.nl/browser');
- $ua->default_header('If-Modified-Since' => scalar gmtime $_->mtime)
- for File::stat::stat($target);
-
- my $res = $ua->get($source) or die "No data from $source\n";
- !$res->is_error or die $res->status_line;
- say $res->status_line;
-
- exit 0 if $res->code == 304; # unmodified
-
- my $data = decode_json($res->decoded_content) or die "Parse error: $!";
- my $updated = eval {
- s/ GMT$//,
- return Time::Piece->strptime($_) for $res->header('Last-Modified')
- };
- $data->{-date} = $_->datetime for $updated || ();
-
- my $suffix = $updated && $updated->ymd || time;
- open my $save, '>', (my $download = "browser-support-$suffix.inc.pl");
- print {$save} pp($data);
- close $save;
-
- symlink $download, "$target.new" and rename "$target.new", $target
- or die "New data at $download not linked: $!";
- exit 0;
-}