X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/a8c39dd96b809107ce0029a6a26f37bfbf33b6bf..HEAD:/tools/mkcaniuse

diff --git a/tools/mkcaniuse b/tools/mkcaniuse
index eaadead..5ab3cba 100755
--- a/tools/mkcaniuse
+++ b/tools/mkcaniuse
@@ -1,24 +1,92 @@
 #!/usr/bin/env perl
-use 5.010;
-use strict;
+use 5.014;
 use warnings;
 
 use Data::Dump 'pp';
-use JSON;
+use JSON::PP;
 use File::stat;
 use Time::Piece;
+use List::Util 'uniq';
 
-our $VERSION = '1.01';
+our $VERSION = '1.04';
+
+my %BROWSERJOIN = (
+	edge    => 'ie',
+	and_chr => 'android',
+);
 
 local $/;  # slurp
 my $source = readline;
 
-my $data = from_json($source);
-my $update = eval { stat(${^LAST_FH} // $ARGV)->mtime }
-	or warn "Could not determine input time\n";
-$data->{-date} = Time::Piece->new($update)->datetime;
+$JSON::PP::false = 0;
+$JSON::PP::true  = 1;
+
+my $data = decode_json($source);
+$data->{-date} = Time::Piece->new($_)->datetime
+	for delete $data->{updated} || ();
+
+delete $data->{eras};
+for (values %{ $data->{data} }) {
+	delete @{$_}{qw[ usage_perc_a usage_perc_y ]};
+}
+while (my ($browser, $alias) = each %BROWSERJOIN) {
+	my $agent =        $data->{agents}->{$browser} or next;
+	my $amend = delete $data->{agents}->{$alias}   or next;
+	unless ($agent->{prefix} eq $amend->{prefix}) {
+		$_->{prefix} ||= $amend->{prefix} for @{ $amend->{version_list} };
+	}
+	unshift @{ $agent->{version_list} }, @{ $amend->{version_list} };
+	$agent->{browser} = sprintf '%s (former %s)',
+		$agent->{browser}, $amend->{browser};
+
+	# prefer deprecated name if newer is convoluted (Chr/And.)
+	$agent->{abbr} = $amend->{abbr} if $agent->{abbr} =~ m{/};
+
+	for (values %{ $data->{data} }) {
+		my $stats = delete $_->{stats}->{$alias} or next;
+		$_ = { %{$_}, %{$stats} } for $_->{stats}->{$browser};
+	}
+}
+
+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} }) {
+	delete $row->{usage_global};
+	delete $row->{prefix_exceptions};  # duplicate of version_list->prefix
+	$row->{versions} = [ uniq map { $_->{version} } @{ $row->{version_list} } ];
+
+	# convert metadata list into (cleaned) lookup table
+	my %version_lookup;
+	for (@{ $row->{version_list} }) {
+		delete $_->{era};
+		delete $_->{prefix} unless $_->{prefix};
+		$version_lookup{ delete $_->{version} } = $_;
+	}
+	$row->{version_list} = \%version_lookup;
+
+	# omit identical values from subsequent versions
+	for my $feature (values %{ $data->{data} }) {
+		my $cmp;  # same value to be omitted
+		my $verstats = $feature->{stats}->{$agent};
+		for my $version (@{ $row->{versions} }) {
+			defined $verstats->{$version}
+				or warn "missing feature $feature->{title} for $agent $version";
+			if (defined $cmp and $verstats->{$version} eq $cmp) {
+				delete $verstats->{$version};
+			}
+			else {
+				$cmp = $verstats->{$version};
+			}
+		}
+	}
+}
 
-print pp($data);
+say "# automatically generated by $0";
+print '+', pp($data);
 
 __END__