Utility script to generate changelog from Git history

bin/generate-changelog.php

@@ -0,0 +1,106 @@
+#!/usr/bin/env php
+<?php declare(strict_types=1);
+
+use Httpful\Request;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+(function () {
+	require_once __DIR__ . '/../vendor/autoload.php';
+
+	$command = new class() extends Symfony\Component\Console\Command\Command {
+
+		protected function configure()
+		{
+			$this->setName('run');
+			$this->addArgument('fromCommit', InputArgument::REQUIRED);
+			$this->addArgument('toCommit', InputArgument::REQUIRED);
+		}
+
+		protected function execute(InputInterface $input, OutputInterface $output)
+		{
+			$commitLines = $this->exec(['git', 'log', sprintf('%s..%s', $input->getArgument('fromCommit'), $input->getArgument('toCommit')), '--reverse', '--pretty=%H %s']);
+			$commits = array_map(function (string $line): array {
+				[$hash, $message] = explode(' ', $line, 2);
+
+				return [
+					'hash' => $hash,
+					'message' => $message
+				];
+			}, explode("\n", $commitLines));
+
+			$i = 0;
+
+			foreach ($commits as $commit) {
+				$searchPullRequestsResponse = Request::get(sprintf('https://api.github.com/search/issues?q=repo:phpstan/phpstan-src+%s', $commit['hash']))
+					->sendsAndExpectsType('application/json')
+					->basicAuth('ondrejmirtes', getenv('GITHUB_TOKEN'))
+					->send();
+				if ($searchPullRequestsResponse->code !== 200) {
+					$output->writeln(var_export($searchPullRequestsResponse->body, true));
+					throw new \InvalidArgumentException((string) $searchPullRequestsResponse->code);
+				}
+				$searchPullRequestsResponse = $searchPullRequestsResponse->body;
+
+				$searchIssuesResponse = Request::get(sprintf('https://api.github.com/search/issues?q=repo:phpstan/phpstan+%s', $commit['hash']))
+					->sendsAndExpectsType('application/json')
+					->basicAuth('ondrejmirtes', getenv('GITHUB_TOKEN'))
+					->send();
+				if ($searchIssuesResponse->code !== 200) {
+					$output->writeln(var_export($searchIssuesResponse->body, true));
+					throw new \InvalidArgumentException((string) $searchIssuesResponse->code);
+				}
+				$searchIssuesResponse = $searchIssuesResponse->body;
+				$items = array_merge($searchPullRequestsResponse->items, $searchIssuesResponse->items);
+				$parenthesis = 'https://github.com/phpstan/phpstan-src/commit/' . $commit['hash'];
+				$thanks = null;
+				$issuesToReference = [];
+				foreach ($items as $responseItem) {
+					if (isset($responseItem->pull_request)) {
+						$parenthesis = sprintf('[#%d](%s)', $responseItem->number, 'https://github.com/phpstan/phpstan-src/pull/' . $responseItem->number);
+						$thanks = $responseItem->user->login;
+					} else {
+						$issuesToReference[] = sprintf('#%d', $responseItem->number);
+					}
+				}
+
+				$output->writeln(sprintf('* %s (%s)%s%s', $commit['message'], $parenthesis, count($issuesToReference) > 0 ? ', ' . implode(', ', $issuesToReference) : '', $thanks !== null ? sprintf(', thanks @%s!', $thanks) : ''));
+
+				if ($i > 0 && $i % 10 === 0) {
+					sleep(30);
+				}
+
+				$i++;
+			}
+
+			return 0;
+		}
+
+		/**
+		 * @param string[] $commandParts
+		 * @return string
+		 */
+		private function exec(array $commandParts): string
+		{
+			$command = implode(' ', array_map(function (string $part): string {
+				return escapeshellarg($part);
+			}, $commandParts));
+
+			exec($command, $outputLines, $statusCode);
+			$output = implode("\n", $outputLines);
+			if ($statusCode !== 0) {
+				throw new \InvalidArgumentException(sprintf('Command %s failed: %s', $command, $output));
+			}
+
+			return $output;
+		}
+
+	};
+
+	$application = new \Symfony\Component\Console\Application();
+	$application->add($command);
+	$application->setDefaultCommand('run', true);
+	$application->run();
+
+})();

composer.json

@@ -33,6 +33,7 @@
 		"dealerdirect/phpcodesniffer-composer-installer": "^0.5.0",
 		"jakub-onderka/php-parallel-lint": "^1.0",
 		"localheinz/composer-normalize": "^1.1.0",
+		"nategood/httpful": "^0.2.20",
 		"phing/phing": "^2.16.0",
 		"phpstan/phpstan-deprecation-rules": "^0.12",
 		"phpstan/phpstan-php-parser": "^0.12",