ESPTerm web interface submodule, separated to make testing and development easier
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espterm-front-end/compile_html.php

85 lines
2.2 KiB

<?php
require_once __DIR__ . '/base.php';
function process_html($s) {
$pattern = '/<!--(.*)-->/Uis';
$s = preg_replace($pattern, '', $s);
$pattern = '/(?:(?:\/\*(?:[^*]|(?:\*+[^*\/]))*\*+\/)|(?:(?<!\:|\\\|\'|\")\/\/.*))/';
$s = preg_replace($pattern, '', $s);
$pattern = '/\s+/s';
$s = preg_replace($pattern, ' ', $s);
return $s;
}
$no_tpl_files = ['help', 'cfg_wifi_conn'];
$dest = __DIR__ . '/out/';
ob_start();
foreach($_pages as $_k => $p) {
if ($p->bodyclass == 'api') {
if (ESP_DEMO) {
echo "Generating: ~$_k.html (bounce)\n";
if ($_k=='index') {
$s = "<!DOCTYPE HTML><meta http-equiv=\"refresh\" content=\"0;url=term.html\">";
}
else {
$s = "<!DOCTYPE HTML>
<script>
var ref = document.referrer;
var qat = document.referrer.indexOf('?');
if (qat !== -1) ref = ref.substring(0, qat)
location.href=ref+'?msg=Request ignored, this is a demo.';
</script>";
}
} else {
continue;
}
} else {
echo "Generating: $_k ($p->title)\n";
$_GET['page'] = $_k;
ob_flush(); // print the message
ob_clean(); // clean up
include(__DIR__ . '/index.php');
$s = ob_get_contents(); // grab the output
// remove newlines and comments
// as tests have shown, it saves just a couple kilobytes,
// making it not a very big improvement at the expense of ugly html.
// $s = process_html($s);
ob_clean();
}
$outputPath = $dest . $_k . ((in_array($_k, $no_tpl_files)||ESP_DEMO) ? '.html' : '.tpl');
if (file_exists($outputPath)) unlink($outputPath);
if (ESP_PROD) {
$tmpfile = tempnam('/tmp', 'espterm').'.html';
file_put_contents($tmpfile, $s);
system('npm run html-minifier --'.
' --remove-optional-tags'.
' --remove-script-type-attributes'.
' --remove-style-link-type-attributes'.
' --remove-comments'.
' --collapse-whitespace'.
' --collapse-boolean-attributes'.
' --html5'.
' --max-line-length 120'.
' -o '.escapeshellarg($outputPath).
' '.escapeshellarg($tmpfile), $rv);
// fallback if minify is not installed
if (!file_exists($outputPath)) file_put_contents($outputPath, $s);
} else {
file_put_contents($outputPath, $s);
}
}
ob_flush();