Add execInspect() API endpoint

examples/exec.php

@@ -0,0 +1,42 @@
+<?php
+// this simple example executes a "sleep 2" within the given running container
+
+require __DIR__ . '/../vendor/autoload.php';
+
+use React\EventLoop\Factory as LoopFactory;
+use Clue\React\Docker\Factory;
+use Clue\React\Docker\ExecHelper;
+use React\Stream\Stream;
+use Clue\React\Buzz\Message\ResponseException;
+
+$container = isset($argv[1]) ? $argv[1] : 'asd';
+
+$loop = LoopFactory::create();
+
+$factory = new Factory($loop);
+$client = $factory->createClient();
+
+$client->execCreate($container, array('Cmd' => array('sleep', '2'), 'AttachStdout' => true))->then(function ($info) use ($client) {
+    echo 'Created with info: ' . json_encode($info) . PHP_EOL;
+
+    return $client->execInspect($info['Id']);
+})->then(function ($info) use ($client) {
+    echo 'Inspected after creation: ' . json_encode($info, JSON_PRETTY_PRINT) . PHP_EOL;
+
+    return $client->execStart($info['ID'], array())->then(function ($out) use ($client, $info) {
+        echo 'Starting returned: ';
+        var_dump($out);
+
+        return $client->execInspect($info['ID']);
+    });
+})->then(function ($info) {
+    echo 'Inspected after execution: ' . json_encode($info, JSON_PRETTY_PRINT) . PHP_EOL;
+}, function (Exception $e) {
+    echo 'ERROR: ' . $e->getMessage() . PHP_EOL;
+
+    if ($e instanceof ResponseException) {
+        echo 'Response: ' . $e->getResponse()->getBody() . PHP_EOL;
+    }
+});
+
+$loop->run();

src/Client.php

@@ -949,6 +949,27 @@ public function execResize($exec, $w, $h)
         )->then(array($this->parser, 'expectEmpty'));
     }
 
+    /**
+     * Returns low-level information about the exec command id.
+     *
+     * Requires API v1.16+ / Docker v1.4+
+     *
+     * @param string $exec exec ID
+     * @return PromiseInterface Promise<array>
+     * @link https://docs.docker.com/engine/reference/api/docker_remote_api_v1.16/#exec-inspect
+     */
+    public function execInspect($exec)
+    {
+        return $this->browser->get(
+            $this->uri->expand(
+                '/exec/{exec}/json',
+                array(
+                    'exec' => $exec
+                )
+            )
+        )->then(array($this->parser, 'expectJson'));
+    }
+
     private function postJson($url, $data)
     {
         $body = $this->json($data);

tests/ClientTest.php

@@ -400,6 +400,14 @@ public function testExecResize()
         $this->expectPromiseResolveWith('', $this->client->execResize(123, 800, 600));
     }
 
+    public function testExecInspect()
+    {
+        $json = array();
+        $this->expectRequestFlow('get', '/exec/123/json', $this->createResponseJson($json), 'expectJson');
+
+        $this->expectPromiseResolveWith($json, $this->client->execInspect(123));
+    }
+
     private function expectRequestFlow($method, $url, ResponseInterface $response, $parser)
     {
         $return = (string)$response->getBody();