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1 | #!/usr/bin/perl | |
2 | use v5.14; | |
3 | use warnings; | |
4 | ||
5 | use CSS::Minifier::XS qw/minify/; | |
6 | use Digest::SHA qw/sha256_base64/; | |
7 | use IO::Compress::Gzip qw/gzip/; | |
8 | use File::Slurp qw/read_file write_file edit_file_lines/; | |
9 | use File::Which; | |
10 | use List::Util qw/first/; | |
11 | ||
12 | mkdir 'static'; | |
13 | mkdir 'static/css'; | |
14 | mkdir 'static/js'; | |
15 | ||
16 | sub gzip_file { | |
17 | my ($file) = @_; | |
18 | my $zopfli = which 'zopfli'; | |
19 | system $zopfli => $file if $zopfli; | |
20 | gzip $file => "$file.gz", -Level => 9, Minimal => 1 unless $zopfli; | |
21 | } | |
22 | ||
23 | sub write_gzfile { | |
24 | my ($file, @content) = @_; | |
25 | write_file $file, @content; | |
26 | gzip_file $file | |
27 | } | |
28 | ||
29 | sub read_css_into_blocks { | |
30 | my ($file) = @_; | |
31 | my (@blocks, $block); | |
32 | for (read_file $file) { | |
33 | $block .= $_; | |
34 | if (/^}/) { | |
35 | push @blocks, $block; | |
36 | $block = ''; | |
37 | } | |
38 | } | |
39 | \@blocks | |
40 | } | |
41 | ||
42 | my $default_theme = 'cyborg'; | |
43 | ||
44 | sub theme_prefix { | |
45 | my ($theme, $decl, $default) = @_; | |
46 | return $decl if $theme eq $default_theme || !$decl; | |
47 | return '' if $decl eq $default; | |
48 | ||
49 | $default =~ s/[^{]*{\n//; | |
50 | $default =~ s/\n}[^}]*//; | |
51 | $decl =~ s/^$_$//m for split "\n", $default; | |
52 | $decl =~ s/\n+/\n/g; | |
53 | ||
54 | my $prefix = "html.$theme"; | |
55 | my ($first_line) = $decl =~ /([^{]*){/; | |
56 | $first_line =~ s/(,\s+)/$1 $prefix /g; | |
57 | $first_line = "$prefix $first_line"; | |
58 | $decl =~ s/([^{]*){/$first_line\{/; | |
59 | $decl | |
60 | } | |
61 | ||
62 | sub make_css { | |
63 | my $css = join '', map { read_file $_ } <css/*.css>; | |
64 | ||
65 | my (%themes); | |
66 | for (<css/themes/*>) { | |
67 | my ($theme) = m,themes/(.*)\.css,; | |
68 | $themes{$theme} = read_css_into_blocks $_; | |
69 | } | |
70 | my @themes = sort grep { $_ ne $default_theme } keys %themes; | |
71 | ||
72 | while (grep { scalar @$_ } values %themes) { | |
73 | my %blocks = map { $_ => (shift @{$themes{$_}}) // '' } keys %themes; | |
74 | $css .= $blocks{$default_theme}; | |
75 | $css .= theme_prefix $_, $blocks{$_}, $blocks{$default_theme} for @themes | |
76 | } | |
77 | ||
78 | write_gzfile "static/css/all.css", minify $css | |
79 | } | |
80 | ||
81 | sub make_js { | |
82 | 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/*>; | |
83 | my $js = read_file 'static/js/all.js'; | |
84 | write_gzfile 'static/js/all.js', '//# sourceMappingURL=/static/js/js.map', "\n", $js; | |
85 | system 'cp', '-rp', 'js', 'static/'; | |
86 | } | |
87 | ||
88 | my $css_mtime = -M 'static/css/all.css' // 0; | |
89 | for (<css/*>, <css/themes/*>) { | |
90 | if (!$css_mtime || $css_mtime > -M) { | |
91 | make_css; | |
92 | last | |
93 | } | |
94 | } | |
95 | ||
96 | my $js_mtime = -M 'static/js/all.js' // 0; | |
97 | for (<js/*>) { | |
98 | if (!$js_mtime || $js_mtime > -M) { | |
99 | make_js; | |
100 | last | |
101 | } | |
102 | } | |
103 | ||
104 | edit_file_lines { | |
105 | my ($file) = m,(static.*\.(?:css|js)),; | |
106 | return unless $file; | |
107 | my $hash = sha256_base64 scalar read_file $file; | |
108 | s/integrity=".*"/integrity="sha256-$hash="/; | |
109 | } 'tmpl/skel.en' |