Docker support (Docker Compose and Dockerfile)

src/Configurator.php

@@ -41,6 +41,8 @@ public function __construct(Composer $composer, IOInterface $io, Options $option
             'makefile' => Configurator\MakefileConfigurator::class,
             'composer-scripts' => Configurator\ComposerScriptsConfigurator::class,
             'gitignore' => Configurator\GitignoreConfigurator::class,
+            'dockerfile' => Configurator\DockerfileConfigurator::class,
+            'docker-compose' => Configurator\DockerComposeConfigurator::class,
         ];
     }
 

src/Configurator/DockerComposeConfigurator.php

@@ -0,0 +1,128 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+
+/**
+ * Adds services and volumes to docker-compose.yml file.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class DockerComposeConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? false;
+        if (!$installDocker) {
+            return;
+        }
+
+        $rootDir = $this->options->get('root-dir');
+        if (
+            (
+                !file_exists($dockerComposeFile = $rootDir.'/docker-compose.yml') &&
+                !file_exists($dockerComposeFile = $rootDir.'/docker-compose.yaml')
+            ) || $this->isFileMarked($recipe, $dockerComposeFile)
+        ) {
+            return;
+        }
+
+        $this->write('Adding Docker Compose entries');
+
+        $offset = 8;
+        $node = null;
+        $endAt = [];
+        $lines = [];
+        foreach (file($dockerComposeFile) as $i => $line) {
+            $lines[] = $line;
+            $ltrimedLine = ltrim($line, ' ');
+
+            // Skip blank lines and comments
+            if (('' !== $ltrimedLine && 0 === strpos($ltrimedLine, '#')) || '' === trim($line)) {
+                continue;
+            }
+
+            // Extract Docker Compose keys (usually "services" and "volumes")
+            if (!preg_match('/^[\'"]?([a-zA-Z0-9]+)[\'"]?:\s*$/', $line, $matches)) {
+                // Detect indentation to use
+                $offestLine = \strlen($line) - \strlen($ltrimedLine);
+                if ($offset > $offestLine && 0 !== $offestLine) {
+                    $offset = $offestLine;
+                }
+                continue;
+            }
+
+            // Keep end in memory (check break line on previous line)
+            $endAt[$node] = '' !== trim($lines[$i - 1]) ? $i : $i - 1;
+            $node = $matches[1];
+        }
+        $endAt[$node] = \count($lines) + 1;
+
+        foreach ($config as $key => $value) {
+            if (isset($endAt[$key])) {
+                array_splice($lines, $endAt[$key], 0, $this->markData($recipe, $this->parse(1, $offset, $value)));
+                continue;
+            }
+
+            $lines[] = sprintf("\n%s:", $key);
+            $lines[] = $this->markData($recipe, $this->parse(1, $offset, $value));
+        }
+
+        file_put_contents($dockerComposeFile, implode('', $lines));
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        $rootDir = $this->options->get('root-dir');
+        if (!file_exists($dockerCompose = $rootDir.'/docker-compose.yml') &&
+            !file_exists($dockerCompose = $rootDir.'/docker-compose.yaml')
+        ) {
+            return;
+        }
+
+        $name = $recipe->getName();
+        // Remove recipe and add break line
+        $contents = preg_replace(sprintf('{%s+###> %s ###.*?###< %s ###%s+}s', "\n", $name, $name, "\n"), PHP_EOL.PHP_EOL, file_get_contents($dockerCompose), -1, $count);
+        if (!$count) {
+            return;
+        }
+
+        foreach ($config as $key => $value) {
+            if (0 === preg_match(sprintf('{^%s:[ \t\r\n]*([ \t]+\w)}m', $key), $contents, $matches)) {
+                $contents = preg_replace(sprintf('{\n?^%s:[ \t\r\n]*}sm', $key), '', $contents, -1, $count);
+            }
+        }
+
+        $this->write(sprintf('Removing Docker Compose entries from %s', $dockerCompose));
+        file_put_contents($dockerCompose, ltrim($contents, "\n"));
+    }
+
+    private function parse($level, $indent, $services): string
+    {
+        $line = '';
+        foreach ($services as $key => $value) {
+            $line .= str_repeat(' ', $indent * $level);
+            if (!\is_array($value)) {
+                if (\is_string($key)) {
+                    $line .= sprintf('%s:', $key);
+                }
+                $line .= sprintf("%s\n", $value);
+                continue;
+            }
+            $line .= sprintf("%s:\n", $key).$this->parse($level + 1, $indent, $value);
+        }
+
+        return $line;
+    }
+}

src/Configurator/DockerfileConfigurator.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Flex\Configurator;
+
+use Symfony\Flex\Lock;
+use Symfony\Flex\Recipe;
+
+/**
+ * Adds commands to a Dockerfile.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class DockerfileConfigurator extends AbstractConfigurator
+{
+    public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
+    {
+        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? false;
+        if (!$installDocker) {
+            return;
+        }
+
+        $dockerfile = $this->options->get('root-dir').'/Dockerfile';
+        if (!file_exists($dockerfile) || $this->isFileMarked($recipe, $dockerfile)) {
+            return;
+        }
+
+        $this->write('Adding Dockerfile entries');
+
+        $lines = [];
+        foreach (file($dockerfile) as $line) {
+            $lines[] = $line;
+            if (!preg_match('/^###> recipes ###$/', $line)) {
+                continue;
+            }
+
+            $lines[] = ltrim($this->markData($recipe, implode("\n", $config)), "\n");
+        }
+
+        file_put_contents($dockerfile, implode('', $lines));
+    }
+
+    public function unconfigure(Recipe $recipe, $config, Lock $lock)
+    {
+        if (!file_exists($dockerfile = $this->options->get('root-dir').'/Dockerfile')) {
+            return;
+        }
+
+        $name = $recipe->getName();
+        $contents = preg_replace(sprintf('{%s+###> %s ###.*?###< %s ###%s+}s', "\n", $name, $name, "\n"), "\n", file_get_contents($dockerfile), -1, $count);
+        if (!$count) {
+            return;
+        }
+
+        $this->write('Removing Dockerfile entries');
+        file_put_contents($dockerfile, ltrim($contents, "\n"));
+    }
+}