perl: optional recommendations at ?at timestamp

[sheet.git] / perl.plp

diff --git a/perl.plp b/perl.plp
index b5e5d57f48d3eef79adf3d199366742cefa6a587..b1ea1c760501c25df2c2819ee744a9e8f4dd15fa 100644 (file)
--- a/perl.plp
+++ b/perl.plp
@@ -19,33 +19,40 @@ scripting language.
 <:
 my $info = Data('perl');
 
+use feature 'signatures';
+sub vname ($v) {
+       return sprintf 'v%d%03d', unpack 'C*', $v;
+}
+sub linkversion ($v) {
+       return showlink(sprintf('%vd', $v), '#'.vname($v));
+}
+
 eval {
        use List::Util 'first';
        use Time::Piece;
        use Time::Seconds;
-       use feature 'signatures';
-       sub linkversion ($v) {
-               return sprintf('%vd', $v);
-       }
 
        my $now = Time::Piece->new;
+       $now = $now->strptime($_, '%Y-%m-%d') for $get{at} // ();
+
        my $coreeol = ($now - ONE_YEAR * 3)->strftime('%F');
        my $vcore = first { $info->{$_}{release} ge $coreeol } sort keys %{$info};
-       say "<p>Core security support is provided for 3 years",
-               ", so typical users should run at least $_."
-               for linkversion($vcore);
+       print "<p>Core security support is provided for 3 years";
+       print ", so typical users should run at least ", linkversion($_)
+               for $vcore // ();
+       say '.';
 
        my $vendoreol = ($now - ONE_YEAR * 5)->strftime('%F');
        my $vdebian = first {
                $info->{$_}{release} ge $vendoreol && $info->{$_}{distro}{debian}
        } sort keys %{$info};
        say sprintf "Stable distributions such as Debian %s maintain %s+.",
-               $info->{$_}{distro}{debian}, linkversion($_) for $vdebian;
+               $info->{$_}{distro}{debian}, linkversion($_) for $vdebian // ();
 
        my $nowcmp = $now->strftime('%F');
        my $vdino = first { $info->{$_}{support} ge $nowcmp } sort keys %{$info};
        say "Enterprise platforms retain versions up to $_."
-               for linkversion($vdino);
+               for map { linkversion($_) } $vdino // ();
        return 1;
 } or Alert('Missing version recommendations', $@);
 say '</p>';
@@ -54,7 +61,7 @@ for my $vernum (reverse sort keys %{$info}) {
        my $verrow = $info->{$vernum};
        defined $verrow->{unstable} and next unless exists $get{v};
 
-       say '<div class="section">';
+       say sprintf '<div class="section" id="%s">', vname($vernum);
        say sprintf '<h2>%vd <small>%s</small></h2>', $vernum, $verrow->{release};
        say '<dl>';
        for (@{ $verrow->{new} }) {