make_static.PL

   1 #!/usr/bin/perl
   2 use v5.14;
   3 use warnings;
   4
   5 use CSS::Minifier::XS qw//;
   6
   7 use Digest::SHA qw/sha256_base64/;
   8 use IO::Compress::Gzip qw/gzip/;
   9 use File::Slurp qw/read_file write_file edit_file_lines/;
  10
  11 mkdir 'static';
  12 mkdir 'static/css';
  13 mkdir 'static/js';
  14
  15 sub gzip_file {
  16         my ($file) = @_;
  17         gzip $file => "$file.gz", -Level => 9, Minimal => 1;
  18 }
  19
  20 sub make_css {
  21         my $common_css;
  22         $common_css .= read_file $_ for <css/*.css>;
  23         for (<css/themes/*>) {
  24                 my ($theme) = m,themes/(.*)\.css,;
  25                 my $css = read_file $_;
  26                 $css .= $common_css;
  27                 write_file "static/css/$theme.css", CSS::Minifier::XS::minify $css;
  28                 gzip_file "static/css/$theme.css";
  29         }
  30 }
  31
  32 sub make_js {
  33         system java => -jar => 'compiler.jar', qw,-O SIMPLE --create_source_map static/js/js.map --js_output_file static/js/all.js --language_in ECMASCRIPT6_STRICT --language_out ECMASCRIPT5_STRICT --source_map_location_mapping js/|/static/js/,, <js/*>;
  34         my $js = read_file 'static/js/all.js';
  35         write_file 'static/js/all.js', '//# sourceMappingURL=/static/js/js.map', "\n", $js;
  36         system 'cp', '-rp', 'js', 'static/';
  37         gzip_file 'static/js/all.js';
  38 }
  39
  40 my $css_mtime = -M 'static/css/slate.css' // 0;
  41 for (<css/*>, <css/themes/*>) {
  42         if (!$css_mtime || $css_mtime > -M) {
  43                 make_css;
  44                 last
  45         }
  46 }
  47
  48 my $js_mtime = -M 'static/js.js' // 0;
  49 for (<js/*>) {
  50         if (!$js_mtime || $js_mtime > -M) {
  51                 make_js;
  52                 last
  53         }
  54 }
  55
  56 edit_file_lines {
  57         my ($file) = m,(static.*\.(?:css|js)),;
  58         return unless $file;
  59         my $hash = sha256_base64 scalar read_file $file;
  60         s/integrity=".*"/integrity="sha256-$hash="/;
  61 } 'tmpl/skel.en'