browser: truncate maximum usage score to 99

[sheet.git] / tools / mkcaniuse

diff --git a/tools/mkcaniuse b/tools/mkcaniuse
index 3def627ea48bc091ad421f3290e413197e26a43c..c1817585d8a6d04cc7cd21375d1086197ed5033b 100755 (executable)
--- a/tools/mkcaniuse
+++ b/tools/mkcaniuse
@@ -1,76 +1,53 @@
 #!/usr/bin/env perl
-use 5.010;
-use strict;
+use 5.014;
 use warnings;
 
 use Data::Dump 'pp';
-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;
-}
+use JSON::PP;
+use File::stat;
+use Time::Piece;
+
+our $VERSION = '1.02';
+
+my %BROWSERJOIN = (
+       edge    => 'ie',
+       and_chr => 'android',
+);
 
 local $/;  # slurp
 my $source = readline;
 
-for ($source) { # cleanup
-       s/\A\(// and s/\);?\s*\Z//;  # empty callback
-       next if /^\{/;  # valid json
-
-       # convert seperate variables to hash keys
-       s/\A/{\n/;
-       s/^caniuse\.(\w+) *= */"$1":/gm;
-       s/;$/,/gm;
-       s/,\s*\Z/\n}/;
-       # fractions not supported by barekey
-       s/(?<=[,{\n]) (\d*\.\d) (?=:['"])/"$1"/gx;
-       # escapes not supported in singlequote
-       s{: *\K'((?:[^\\']+|\\.)*)'}{
-               my $_ = $1;
-               s/"/\\"/g;
-               s/\\'/'/g;
-               qq("$_");
-       }ge;
+$JSON::PP::false = 0;
+$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 ]};
+}
+for (values %{ $data->{agents} }) {
+       delete $_->{usage_global};
+       shift @{ $_->{versions} } while !defined $_->{versions}->[0];
 }
 
-my $data = from_json($source, {
-       allow_singlequote => 1,
-       allow_barekey => 1,
-});
+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} };
+       $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};
+       }
+}
 
-print pp($data);
+say "# automatically generated by $0";
+print '+', pp($data);
 
 __END__
 
@@ -80,8 +57,5 @@ mkcaniuse - Turn Javascript data into an equivalent Perl structure
 
 =head1 SYNOPSIS
 
-       curl http://caniuse.com/data.json |
-       tools/mkcaniuse.pl > browser-support.inc.pl
-
-       tools/mkcaniuse.pl auto
+       tools/mkcaniuse data.json >browser-support.inc.pl