browser: coalesce duplicate agent version in caniuse data

[sheet.git] / tools / mkcaniuse

diff --git a/tools/mkcaniuse b/tools/mkcaniuse
index 57b36fc3dd2876d65485fe17e386d8171afb4480..f72122b6f309538a494d027a27d1194ac3068d76 100755 (executable)
--- a/tools/mkcaniuse
+++ b/tools/mkcaniuse
@@ -6,8 +6,14 @@ use Data::Dump 'pp';
 use JSON::PP;
 use File::stat;
 use Time::Piece;
+use List::Util 'uniq';
 
-our $VERSION = '1.02';
+our $VERSION = '1.03';
+
+my %BROWSERJOIN = (
+       edge    => 'ie',
+       and_chr => 'android',
+);
 
 local $/;  # slurp
 my $source = readline;
@@ -16,16 +22,42 @@ $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 %{ $data->{data} }) {
        delete @{$_}{qw[ usage_perc_a usage_perc_y ]};
 }
 for (values %{ $data->{agents} }) {
        delete $_->{usage_global};
-       shift @{ $_->{versions} } while !defined $_->{versions}->[0];
+       for (@{ $_->{version_list} }) {
+               delete $_->{era};
+               delete $_->{prefix} unless $_->{prefix};
+       }
+}
+
+while (my ($browser, $target) = each %BROWSERJOIN) {
+       my $agent1 = delete $data->{agents}->{$browser} or next;
+       my $agent2 =        $data->{agents}->{$target}  or next;
+       push @{ $agent2->{version_list} }, @{ $agent1->{version_list} };
+       $agent2->{browser} = sprintf '%s (former %s)',
+               $agent1->{browser}, $agent2->{browser};
+
+       for (values %{ $data->{data} }) {
+               my $stats = delete $_->{stats}->{$browser} or next;
+               $_ = { %{$_}, %{$stats} } for $_->{stats}->{$target};
+       }
+}
+
+for my $feature (values %{ $data->{data} }) {
+       while (my ($attr, $row) = each %{$feature}) {
+               delete $feature->{$attr} if ref $row eq '' and $row eq '';
+       }
+}
+
+while (my ($agent, $row) = each %{ $data->{agents} }) {
+       $row->{versions} = [ uniq map { $_->{version} } @{ $row->{version_list} } ];
 }
 
 say "# automatically generated by $0";