Add generate:flex-endpoint command

Author: nicolas-grekas

run

@@ -4,6 +4,7 @@
 require __DIR__.'/vendor/autoload_runtime.php';
 
 use App\DiffRecipeVersionsCommand;
+use App\GenerateFlexEndpointCommand;
 use App\GenerateFlexIndexCommand;
 use App\LintManifestsCommand;
 use App\LintPackagesCommand;
@@ -16,6 +17,7 @@ return function() {
     $app = new Application();
 
     $app->add(new DiffRecipeVersionsCommand());
+    $app->add(new GenerateFlexEndpointCommand());
     $app->add(new GenerateFlexIndexCommand());
     $app->add(new LintManifestsCommand());
     $app->add(new LintPackagesCommand());

src/GenerateFlexEndpointCommand.php

@@ -0,0 +1,136 @@
+<?php
+
+/*
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App;
+
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\HttpClient\HttpClient;
+
+#[AsCommand(name: 'generate:flex-endpoint', description: 'Generates the json files required by Flex')]
+class GenerateFlexEndpointCommand extends Command
+{
+    protected function configure(): void
+    {
+        $this
+            ->addArgument('repository', InputArgument::REQUIRED, 'The name of the GitHub repository')
+            ->addArgument('source_branch', InputArgument::REQUIRED, 'The source branch of recipes')
+            ->addArgument('flex_branch', InputArgument::REQUIRED, 'The branch of the target Flex endpoint')
+            ->addArgument('output_directory', InputArgument::REQUIRED, 'The directory where generated files should be stored')
+            ->addOption('contrib')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $repository = $input->getArgument('repository');
+        $sourceBranch = $input->getArgument('source_branch');
+        $flexBranch = $input->getArgument('flex_branch');
+        $outputDir = $input->getArgument('output_directory');
+        $contrib = $input->getOption('contrib');
+
+        $aliases = $recipes = [];
+
+        // stdin usually generated by `git ls-tree HEAD */*/*`
+
+        while (false !== $line = fgets(STDIN)) {
+            [$tree, $package] = explode("\t", trim($line));
+            [,, $tree] = explode(' ', $tree);
+
+            if (!file_exists($package.'/manifest.json')) {
+                continue;
+            }
+
+            $manifest = json_decode(file_get_contents($package.'/manifest.json'), true);
+            $version = substr($package, 1 + strrpos($package, '/'));
+            $package = substr($package, 0, -1 - \strlen($version));
+
+            $this->generatePackageJson($repository, $sourceBranch, $contrib, $package, $version, $manifest, $tree, $outputDir);
+
+            foreach ($manifest['aliases'] ?? [] as $alias) {
+                $aliases[$alias] = $package;
+                $aliases[str_replace('-', '', $alias)] = $package;
+            }
+
+            if (0 === strpos($package, 'symfony/') && '-pack' !== substr($package, -5)) {
+                $alias = substr($package, 8);
+                $aliases[$alias] = $package;
+                $aliases[str_replace('-', '', $alias)] = $package;
+            }
+
+            $recipes[$package][] = $version;
+            usort($recipes[$package], 'strnatcmp');
+        }
+
+        uksort($aliases, 'strnatcmp');
+        uksort($recipes, 'strnatcmp');
+
+        file_put_contents($outputDir.'/index.json', json_encode([
+            'aliases' => $aliases,
+            'recipes' => $recipes,
+            'versions' => $contrib ? [] : HttpClient::create()->request('GET', 'https://flex.symfony.com/versions.json')->toArray(),
+            'git_url' => sprintf('https://github.com/%s.git', $repository),
+            'tree_template' => sprintf('https://github.com/%s/tree/{tree}/{package}/{version}', $repository),
+            'recipe_template' => sprintf('https://raw.githubusercontent.com/%s/%s/{package_dotted}.{version}.json', $repository, $flexBranch),
+            'is_contrib' => $contrib,
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+        return 0;
+    }
+
+    private function generatePackageJson(string $repository, string $sourceBranch, bool $contrib, string $package, string $version, array $manifest, string $tree, string $outputDir)
+    {
+        $files = [];
+        $it = new \RecursiveDirectoryIterator($package.'/'.$version);
+        $it->setFlags($it::SKIP_DOTS | $it::FOLLOW_SYMLINKS);
+
+        foreach (new \RecursiveIteratorIterator($it) as $path => $file) {
+            $file = substr($path, 1 + \strlen($package.'/'.$version));
+            if (is_dir($path) || \in_array($file, ['manifest.json', 'post-install.txt', 'Makefile'], true)) {
+                continue;
+            }
+            $contents = file_get_contents($path);
+            $isUtf8 = preg_match('//u', $contents);
+            $files[$file] = [
+                'contents' => $isUtf8 ? $contents : base64_encode($contents),
+                'executable' => is_executable($path),
+                'encoding' => $isUtf8 ? '' : 'base64',
+            ];
+        }
+
+        file_put_contents(sprintf('%s/%s.%s.json', $outputDir, str_replace('/', '.', $package), $version), json_encode([
+            'locks' => [
+                $package => [
+                    'version' => $version,
+                    'recipe' => [
+                        'repo' => $version,
+                        'branch' => $sourceBranch,
+                        'version' => $version,
+                        'ref' => $tree,
+                    ],
+                ],
+            ],
+            'manifests' => [
+                $package => [
+                    'repository' => sprintf('github.com/%s', $repository),
+                    'package' => $package,
+                    'version' => $version,
+                    'manifest' => $manifest,
+                    'files' => $files,
+                    'origin' => sprintf('%s:%[email protected]/%s:%s', $package, $version, $repository, $sourceBranch),
+                    'not_installable' => false,
+                    'is_contrib' => $contrib,
+                ],
+            ],
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+    }
+}