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dhobidhobi
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- Add versions.php to web app which shows available library versions
- Eat your own dog food by using Relay to cache packages.json
1 parent 2d4b603 commit bcfa813

4 files changed

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‎composer.json‎

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},
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"require-dev": {
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"heroku/heroku-buildpack-php": "dev-main"
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},
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"scripts": {
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"compile": [
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"./web/compile.sh"
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]
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}
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}

‎web/compile.sh‎

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#!/bin/bash
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set -e
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RELAY_INI=`find $(php-config --ini-dir) -name "*-relay.ini"`
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sed -i 's/^;\? \?relay.maxmemory =.*/relay.maxmemory = 100M/' $RELAY_INI
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sed -i 's/^;\? \?relay.eviction_policy =.*/relay.eviction_policy = lru/' $RELAY_INI

‎web/header.phtml‎

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</a>
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</div>
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</div>
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<div class="mt-4 flex justify-center">
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<a href="/" class="text-sm text-indigo-600 hover:underline m-2">Home</a>
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<a href="/versions.php" class="text-sm text-indigo-600 hover:underline m-2">See all versions</a>
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</div>
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</div>
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</div>
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</header>

‎web/versions.php‎

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<?php
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// versions.php
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// Generates HTML tables of extension versions from hardcoded packages.json URLs.
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// Hardcoded packages.json URLs (edit as needed)
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$urls = [
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'https://heroku-php-extensions.s3.amazonaws.com/dist-heroku-24-amd64-stable/packages.json',
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'https://heroku-php-extensions.s3.amazonaws.com/dist-heroku-22-stable/packages.json',
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'https://heroku-php-extensions.s3.amazonaws.com/dist-heroku-20-stable/packages.json',
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'https://heroku-php-extensions.s3.amazonaws.com/dist-heroku-18-stable/packages.json'
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];
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$relay = new Relay\Relay;
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$relay->connect(getenv('UPSTASH_REDIS_REST_URL'), 6379);
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$relay->auth(['default', getenv('UPSTASH_REDIS_REST_TOKEN')]);
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$table = new Relay\Table('packages');
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function fetch_json(string $url, $table): ?array
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{
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if($table->exists($url)) {
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$cached = $table->get($url);
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if ($cached) {
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return json_decode($cached, true);
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}
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}
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$opts = [
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'http' => [
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'method' => 'GET',
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'header' => "User-Agent: PHP\r\n",
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'timeout' => 10,
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],
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];
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$context = stream_context_create($opts);
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$json = @file_get_contents($url, false, $context);
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if ($json === false) {
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error_log("Failed to fetch: $url");
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return null;
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}
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$table->set($url, $json);
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$data = json_decode($json, true);
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if (json_last_error() !== JSON_ERROR_NONE) {
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error_log("JSON decode error for $url: " . json_last_error_msg());
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return null;
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}
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return $data;
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}
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function parse_packages(array $packages_data): array
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{
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$stacks = [];
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if (!isset($packages_data['packages'])) {
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return $stacks;
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}
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$packages = $packages_data['packages'];
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$package_list = [];
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// If associative array (package-name => [versions])
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$is_assoc = array_keys($packages) !== range(0, count($packages) - 1);
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if ($is_assoc) {
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foreach ($packages as $package_name => $versions) {
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if (is_array($versions)) {
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foreach ($versions as $version_info) {
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$package_list[] = $version_info;
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}
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}
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}
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} else {
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// Flatten lists
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foreach ($packages as $item) {
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if (is_array($item) && array_keys($item) === range(0, count($item) - 1)) {
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foreach ($item as $sub) {
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$package_list[] = $sub;
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}
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} else {
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$package_list[] = $item;
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}
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}
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}
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foreach ($package_list as $version_info) {
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if (!is_array($version_info)) {
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continue;
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}
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$package_name = $version_info['name'] ?? null;
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if (!$package_name || strpos($package_name, 'heroku-sys/ext-') !== 0) {
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continue;
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}
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$ext_name = substr($package_name, strlen('heroku-sys/ext-'));
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$ext_version = $version_info['version'] ?? null;
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if (!$ext_version) {
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continue;
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}
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$require = $version_info['require'] ?? [];
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$php_req = $require['heroku-sys/php'] ?? null;
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$stack_req = $require['heroku-sys/heroku'] ?? null;
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if (!$php_req || !$stack_req) {
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continue;
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}
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// Parse stack (e.g., ^22.0.0 -> 22 -> heroku-22)
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if (preg_match('/\^?(\d+)\./', $stack_req, $m)) {
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$stack = 'heroku-' . $m[1];
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} else {
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continue;
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}
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// Parse PHP version like 7.3.* -> 7.3
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if (preg_match('/(\d+\.\d+)\.\*/', $php_req, $m2)) {
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$php_version = $m2[1];
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} else {
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continue;
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}
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$stacks[$stack][$php_version][$ext_name][] = $ext_version;
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}
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// Deduplicate and sort versions
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foreach ($stacks as $stack_name => $phps) {
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foreach ($phps as $php => $exts) {
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foreach ($exts as $ext => $versions) {
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$unique = array_values(array_unique($versions));
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usort($unique, function ($a, $b) {
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return version_compare($a, $b);
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});
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$stacks[$stack_name][$php][$ext] = $unique;
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}
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}
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}
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return $stacks;
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}
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// Merge stacks from multiple manifests
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$all_stacks = [];
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foreach ($urls as $url) {
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$data = fetch_json($url, $table);
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if ($data === null) {
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continue;
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}
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$st = parse_packages($data);
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// Merge into all_stacks
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foreach ($st as $stack => $phps) {
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foreach ($phps as $php => $exts) {
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foreach ($exts as $ext => $versions) {
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if (!isset($all_stacks[$stack][$php][$ext])) {
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$all_stacks[$stack][$php][$ext] = [];
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}
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$all_stacks[$stack][$php][$ext] = array_merge($all_stacks[$stack][$php][$ext], $versions);
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}
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}
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}
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}
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// Final dedupe and sort after merge
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foreach ($all_stacks as $stack_name => $phps) {
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foreach ($phps as $php => $exts) {
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foreach ($exts as $ext => $versions) {
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$unique = array_values(array_unique($versions));
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usort($unique, function ($a, $b) {
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return version_compare($a, $b);
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});
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$all_stacks[$stack_name][$php][$ext] = $unique;
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}
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}
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}
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// Helper to sort php versions like 7.3, 8.0 numerically
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function sort_php_versions(array $versions): array
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{
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usort($versions, function ($a, $b) {
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$pa = array_map('intval', explode('.', $a));
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$pb = array_map('intval', explode('.', $b));
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for ($i = 0; $i < max(count($pa), count($pb)); $i++) {
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$va = $pa[$i] ?? 0;
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$vb = $pb[$i] ?? 0;
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if ($va === $vb) continue;
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return $va <=> $vb;
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}
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return 0;
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});
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return $versions;
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}
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// Render HTML using site header/footer and Tailwind styling
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ini_set('display_errors', 1);
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error_reporting(E_ALL);
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require __DIR__ . '/header.phtml';
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if (empty($all_stacks)) {
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echo "<section class=\"max-w-2xl mx-auto\"><p class=\"text-sm text-gray-500\">No data available.</p></section>\n";
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require __DIR__ . '/footer.phtml';
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exit;
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}
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foreach ($all_stacks as $stack => $phps) {
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// gather all extensions and php versions
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$all_extensions = [];
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$all_php_versions = [];
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foreach ($phps as $php => $exts) {
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$all_php_versions[] = $php;
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foreach ($exts as $ext => $_) {
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$all_extensions[$ext] = true;
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}
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}
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$all_extensions = array_keys($all_extensions);
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sort($all_extensions, SORT_NATURAL | SORT_FLAG_CASE);
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$all_php_versions = array_values(array_unique($all_php_versions));
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$all_php_versions = sort_php_versions($all_php_versions);
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echo "<section class=\"max-w-4xl mx-auto mt-6\">\n";
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echo " <h3 class=\"text-lg leading-6 font-medium text-gray-900\">" . htmlspecialchars($stack) . "</h3>\n";
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echo " <div class=\"mt-4 overflow-x-auto\">\n";
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echo " <table class=\"min-w-full divide-y divide-gray-200\">\n";
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echo " <thead class=\"bg-gray-50\"><tr><th class=\"px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase tracking-wider\">PHP</th>";
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foreach ($all_extensions as $ext) {
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echo "<th class=\"px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase tracking-wider\">" . htmlspecialchars($ext) . "</th>";
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}
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echo "</tr></thead>\n";
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echo " <tbody class=\"bg-white divide-y divide-gray-200\">\n";
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foreach ($all_php_versions as $php_ver) {
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echo " <tr>\n";
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echo " <td class=\"px-3 py-2 text-sm text-gray-700\">" . htmlspecialchars($php_ver) . "</td>";
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foreach ($all_extensions as $ext) {
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$versions = $all_stacks[$stack][$php_ver][$ext] ?? [];
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$cells = [];
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foreach ($versions as $v) {
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$cells[] = '<code class="text-xs bg-gray-100 px-2 py-1 rounded inline-block m-px">' . htmlspecialchars($v) . '</code>';
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}
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echo "<td class=\"px-3 py-2 text-sm text-gray-700\">" . implode(' ', $cells) . "</td>";
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}
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echo "</tr>\n";
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}
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echo " </tbody>\n";
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echo " </table>\n";
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echo " </div>\n";
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echo "</section>\n";
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}
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require __DIR__ . '/footer.phtml';

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