Added new shiny webhook for Discord release notifications

.github/workflows/discord-release-embed.php

@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+namespace pocketmine;
+
+use pocketmine\utils\Internet;
+use function dirname;
+use function fwrite;
+use function is_array;
+use function json_decode;
+use function json_encode;
+use const JSON_THROW_ON_ERROR;
+use const STDERR;
+
+require dirname(__DIR__, 2) . '/vendor/autoload.php';
+
+/**
+ * @phpstan-return array<string, mixed>
+ */
+function generateDiscordEmbed(string $version, string $channel, string $description, string $detailsUrl, string $sourceUrl, string $pharDownloadUrl) : array{
+	return [
+		"embeds" => [
+			[
+				"title" => "New PocketMine-MP release: $version ($channel)",
+				"description" => <<<DESCRIPTION
+$description
+
+[Details]($detailsUrl) | [Source Code]($sourceUrl) | [Download]($pharDownloadUrl)
+DESCRIPTION,
+				"url" => $detailsUrl,
+				"color" => $channel === "stable" ? 0x57ab5a : 0xc69026
+			]
+		]
+	];
+}
+
+if(count($argv) !== 5){
+	fwrite(STDERR, "Required arguments: github repo, version, API token\n");
+	exit(1);
+}
+[, $repo, $tagName, $token, $hookURL] = $argv;
+
+$result = Internet::getURL('https://api.github.com/repos/' . $repo . '/releases/tags/' . $tagName, extraHeaders: [
+	'Authorization: token ' . $token
+]);
+if($result === null){
+	fwrite(STDERR, "failed to access GitHub API\n");
+	return;
+}
+if($result->getCode() !== 200){
+	fwrite(STDERR, "Error accessing GitHub API: " . $result->getCode() . "\n");
+	fwrite(STDERR, $result->getBody() . "\n");
+	exit(1);
+}
+
+$releaseInfoJson = json_decode($result->getBody(), true, JSON_THROW_ON_ERROR);
+if(!is_array($releaseInfoJson)){
+	fwrite(STDERR, "Invalid release JSON returned from GitHub API\n");
+	exit(1);
+}
+$buildInfoPath = 'https://github.com/' . $repo . '/releases/download/' . $tagName . '/build_info.json';
+
+$buildInfoResult = Internet::getURL($buildInfoPath, extraHeaders: [
+	'Authorization: token ' . $token
+]);
+if($buildInfoResult === null){
+	fwrite(STDERR, "missing build_info.json\n");
+	exit(1);
+}
+if($buildInfoResult->getCode() !== 200){
+	fwrite(STDERR, "error accessing build_info.json: " . $buildInfoResult->getCode() . "\n");
+	fwrite(STDERR, $buildInfoResult->getBody() . "\n");
+	exit(1);
+}
+
+$buildInfoJson = json_decode($buildInfoResult->getBody(), true, JSON_THROW_ON_ERROR);
+if(!is_array($buildInfoJson)){
+	fwrite(STDERR, "invalid build_info.json\n");
+	exit(1);
+}
+$detailsUrl = $buildInfoJson["details_url"];
+$sourceUrl = $buildInfoJson["source_url"];
+$pharDownloadUrl = $buildInfoJson["download_url"];
+
+
+$description = $releaseInfoJson["body"];
+
+$discordPayload = generateDiscordEmbed($buildInfoJson["base_version"], $buildInfoJson["channel"], $description, $detailsUrl, $sourceUrl, $pharDownloadUrl);
+
+$response = Internet::postURL(
+	$hookURL,
+	json_encode($discordPayload, JSON_THROW_ON_ERROR),
+	extraHeaders: ['Content-Type: application/json']
+);
+if($response?->getCode() !== 204){
+	fwrite(STDERR, "failed to send Discord webhook\n");
+	fwrite(STDERR, $response?->getBody() ?? "no response body\n");
+	exit(1);
+}

.github/workflows/discord-release-notify.yml

@@ -0,0 +1,25 @@
+name: Notify Discord webhook of release
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup PHP and tools
+        uses: shivammathur/setup-php@2.21.1
+        with:
+          php-version: 8.0
+
+      - name: Get actual tag name
+        id: tag-name
+        run: echo ::set-output name=TAG_NAME::$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{')
+
+      - name: Run webhook post script
+        run: php .github/workflows/discord-release-embed.php ${{ github.repo }} ${{ steps.tag-name.outputs.TAG_NAME }} ${{ github.token }} ${{ secrets.DISCORD_RELEASE_WEBHOOK }}