browser: omit empty values from caniuse data

[sheet.git] / tools / mkcaniuse

diff --git a/tools/mkcaniuse b/tools/mkcaniuse
index 65fcec3da92bc3784c1e5444e0ae6d9eed5d4b6a..2c6c6a254d5c77d529a4c73ea241d86dfde85f71 100755 (executable)
--- a/tools/mkcaniuse
+++ b/tools/mkcaniuse
@@ -7,7 +7,7 @@ use JSON::PP;
 use File::stat;
 use Time::Piece;
 
-our $VERSION = '1.02';
+our $VERSION = '1.03';
 
 my %BROWSERJOIN = (
        edge    => 'ie',
@@ -21,9 +21,8 @@ $JSON::PP::false = 0;
 $JSON::PP::true  = 1;
 
 my $data = decode_json($source);
-my $update = eval { stat(${^LAST_FH} // $ARGV)->mtime }
-       or warn "Could not determine input time\n";
-$data->{-date} = Time::Piece->new($update)->datetime;
+$data->{-date} = Time::Piece->new($_)->datetime
+       for delete $data->{updated} || ();
 
 delete $data->{eras};
 for (values %{ $data->{data} }) {
@@ -31,13 +30,12 @@ for (values %{ $data->{data} }) {
 }
 for (values %{ $data->{agents} }) {
        delete $_->{usage_global};
-       shift @{ $_->{versions} } while !defined $_->{versions}->[0];
 }
 
 while (my ($browser, $target) = each %BROWSERJOIN) {
        my $agent1 = delete $data->{agents}->{$browser} or next;
        my $agent2 =        $data->{agents}->{$target}  or next;
-       splice @{ $agent2->{versions} }, -3, 3, @{ $agent1->{versions} };
+       push @{ $agent2->{version_list} }, @{ $agent1->{version_list} };
        $agent2->{browser} = sprintf '%s (former %s)',
                $agent1->{browser}, $agent2->{browser};
 
@@ -47,6 +45,12 @@ while (my ($browser, $target) = each %BROWSERJOIN) {
        }
 }
 
+for my $feature (values %{ $data->{data} }) {
+       while (my ($attr, $row) = each %{$feature}) {
+               delete $feature->{$attr} if ref $row eq '' and $row eq '';
+       }
+}
+
 say "# automatically generated by $0";
 print '+', pp($data);