Display information when downloading a file.

src/FileFetcher.php

@@ -7,6 +7,7 @@
 
 namespace DrupalComposer\DrupalScaffold;
 
+use Composer\IO\IOInterface;
 use Composer\Util\Filesystem;
 use Composer\Util\RemoteFilesystem;
 
@@ -17,23 +18,52 @@ class FileFetcher {
    */
   protected $remoteFilesystem;
 
+  /**
+   * @var \Composer\IO\IOInterface
+   */
+  protected $io;
+
+  /**
+   * @var bool
+   *
+   * A boolean indicating if progress should be displayed.
+   */
+  protected $progress;
+
   protected $source;
   protected $filenames;
   protected $fs;
 
-  public function __construct(RemoteFilesystem $remoteFilesystem, $source, $filenames = []) {
+  public function __construct(RemoteFilesystem $remoteFilesystem, $source, IOInterface $io, $progress = TRUE) {
     $this->remoteFilesystem = $remoteFilesystem;
+    $this->io = $io;
     $this->source = $source;
-    $this->filenames = $filenames;
     $this->fs = new Filesystem();
+    $this->progress = $progress;
   }
 
-  public function fetch($version, $destination) {
-    array_walk($this->filenames, function ($filename) use ($version, $destination) {
-      $url = $this->getUri($filename, $version);
-      $this->fs->ensureDirectoryExists($destination . '/' . dirname($filename));
-      $this->remoteFilesystem->copy($url, $url, $destination . '/' . $filename);
-    });
+  public function fetch($version, $destination, $override) {
+    foreach ($this->filenames as $sourceFilename => $filename) {
+      $target = "$destination/$filename";
+      if ($override || !file_exists($target)) {
+        $url = $this->getUri($sourceFilename, $version);
+        $this->fs->ensureDirectoryExists($destination . '/' . dirname($filename));
+        if ($this->progress) {
+          $this->io->writeError("  - <info>$filename</info> (<comment>$url</comment>): ", FALSE);
+          $this->remoteFilesystem->copy($url, $url, $target, $this->progress);
+          // Used to put a new line because the remote file system does not put
+          // one.
+          $this->io->writeError('');
+        }
+        else {
+          $this->remoteFilesystem->copy($url, $url, $target, $this->progress);
+        }
+      }
+    }
+  }
+
+  public function setFilenames(array $filenames) {
+    $this->filenames = $filenames;
   }
 
   protected function getUri($filename, $version) {

src/Handler.php

@@ -33,6 +33,13 @@ class Handler {
    */
   protected $io;
 
+  /**
+   * @var bool
+   *
+   * A boolean indicating if progress should be displayed.
+   */
+  protected $progress;
+
   /**
    * @var \Composer\Package\PackageInterface
    */
@@ -47,6 +54,7 @@ class Handler {
   public function __construct(Composer $composer, IOInterface $io) {
     $this->composer = $composer;
     $this->io = $io;
+    $this->progress = TRUE;
   }
 
   /**
@@ -66,6 +74,20 @@ protected function getCorePackage($operation) {
     return NULL;
   }
 
+  /**
+   * Get the command options.
+   *
+   * @param \Composer\Plugin\CommandEvent $event
+   */
+  public function onCmdBeginsEvent(\Composer\Plugin\CommandEvent $event) {
+    if ($event->getInput()->hasOption('no-progress')) {
+      $this->progress = !($event->getInput()->getOption('no-progress'));
+    }
+    else {
+      $this->progress = TRUE;
+    }
+  }
+
   /**
    * Marks scaffolding to be processed after an install or update command.
    *
@@ -114,11 +136,12 @@ public function downloadScaffold() {
 
     $remoteFs = new RemoteFilesystem($this->io);
 
-    $fetcher = new PrestissimoFileFetcher($remoteFs, $options['source'], $files, $this->io, $this->composer->getConfig());
-    $fetcher->fetch($version, $webroot);
+    $fetcher = new PrestissimoFileFetcher($remoteFs, $options['source'], $this->io, $this->progress, $this->composer->getConfig());
+    $fetcher->setFilenames(array_combine($files, $files));
+    $fetcher->fetch($version, $webroot, true);
 
-    $initialFileFetcher = new InitialFileFetcher($remoteFs, $options['source'], $this->getInitial());
-    $initialFileFetcher->fetch($version, $webroot);
+    $fetcher->setFilenames($this->getInitial());
+    $fetcher->fetch($version, $webroot, false);
 
     // Call post-scaffold scripts.
     $dispatcher->dispatch(self::POST_DRUPAL_SCAFFOLD_CMD);

src/Plugin.php

@@ -11,6 +11,8 @@
 use Composer\Installer\PackageEvent;
 use Composer\Installer\PackageEvents;
 use Composer\IO\IOInterface;
+use Composer\Plugin\CommandEvent;
+use Composer\Plugin\PluginEvents;
 use Composer\Plugin\PluginInterface;
 use Composer\Script\ScriptEvents;
 
@@ -45,9 +47,19 @@ public static function getSubscribedEvents() {
       //PackageEvents::POST_PACKAGE_UNINSTALL => 'postPackage',
       //ScriptEvents::POST_INSTALL_CMD => 'postCmd',
       ScriptEvents::POST_UPDATE_CMD => 'postCmd',
+      PluginEvents::COMMAND => 'cmdBegins',
     );
   }
 
+  /**
+   * Command begins event callback.
+   *
+   * @param \Composer\Plugin\CommandEvent $event
+   */
+  public function cmdBegins(\Composer\Plugin\CommandEvent $event) {
+    $this->handler->onCmdBeginsEvent($event);
+  }
+
   /**
    * Post package event behaviour.
    *

src/PrestissimoFileFetcher.php

@@ -14,37 +14,35 @@
 
 class PrestissimoFileFetcher extends FileFetcher {
 
-  /**
-   * @var \Composer\IO\IOInterface
-   */
-  protected $io;
-
   /**
    * @var \Composer\Config
    */
   protected $config;
 
-  public function __construct(\Composer\Util\RemoteFilesystem $remoteFilesystem, $source, array $filenames = [], IOInterface $io, Config $config) {
-    parent::__construct($remoteFilesystem, $source, $filenames);
-    $this->io = $io;
+  public function __construct(\Composer\Util\RemoteFilesystem $remoteFilesystem, $source, IOInterface $io, $progress = TRUE, Config $config) {
+    parent::__construct($remoteFilesystem, $source, $io, $progress);
     $this->config = $config;
   }
 
-  public function fetch($version, $destination) {
+  public function fetch($version, $destination, $override) {
     if (class_exists(CurlMulti::class)) {
-      $this->fetchWithPrestissimo($version, $destination);
+      $this->fetchWithPrestissimo($version, $destination, $override);
       return;
     }
-    parent::fetch($version, $destination);
+    parent::fetch($version, $destination, $override);
   }
 
-  protected function fetchWithPrestissimo($version, $destination) {
+  protected function fetchWithPrestissimo($version, $destination, $override) {
     $requests = [];
-    array_walk($this->filenames, function ($filename) use ($version, $destination, &$requests) {
-      $url = $this->getUri($filename, $version);
-      $this->fs->ensureDirectoryExists($destination . '/' . dirname($filename));
-      $requests[] = new CopyRequest($url, $destination . '/' . $filename, false, $this->io, $this->config);
-    });
+
+    foreach ($this->filenames as $sourceFilename => $filename) {
+      $target = "$destination/$filename";
+      if ($override || !file_exists($target)) {
+        $url = $this->getUri($sourceFilename, $version);
+        $this->fs->ensureDirectoryExists($destination . '/' . dirname($filename));
+        $requests[] = new CopyRequest($url, $target, false, $this->io, $this->config);
+      }
+    }
 
     $successCnt = $failureCnt = 0;
     $totalCnt = count($requests);
@@ -57,8 +55,10 @@ protected function fetchWithPrestissimo($version, $destination) {
       $result = $multi->getFinishedResults();
       $successCnt += $result['successCnt'];
       $failureCnt += $result['failureCnt'];
-      foreach ($result['urls'] as $url) {
-        $this->io->writeError("    <comment>$successCnt/$totalCnt</comment>:\t$url", true, \Composer\IO\IOInterface::VERBOSE);
+      if ($this->progress) {
+        foreach ($result['urls'] as $url) {
+          $this->io->writeError("  - Downloading <comment>$successCnt</comment>/<comment>$totalCnt</comment>: <info>$url</info>", true);
+        }
       }
     } while ($multi->remain());
   }

tests/FetcherTest.php

@@ -63,15 +63,22 @@ protected function ensureDirectoryExistsAndClear($directory) {
   }
 
   public function testFetch() {
-    $fetcher = new FileFetcher(new RemoteFilesystem(new NullIO()), 'http://cgit.drupalcode.org/drupal/plain/{path}?h={version}', ['.htaccess', 'sites/default/default.settings.php']);
-    $fetcher->fetch('8.1.1', $this->tmpDir);
+    $fetcher = new FileFetcher(new RemoteFilesystem(new NullIO()), 'http://cgit.drupalcode.org/drupal/plain/{path}?h={version}', new NullIO());
+    $fetcher->setFilenames([
+      '.htaccess' => '.htaccess',
+      'sites/default/default.settings.php' => 'sites/default/default.settings.php',
+    ]);
+    $fetcher->fetch('8.1.1', $this->tmpDir, true);
     $this->assertFileExists($this->tmpDir . '/.htaccess');
     $this->assertFileExists($this->tmpDir . '/sites/default/default.settings.php');
   }
 
   public function testInitialFetch() {
-    $fetcher = new InitialFileFetcher(new RemoteFilesystem(new NullIO()), 'http://cgit.drupalcode.org/drupal/plain/{path}?h={version}', ['sites/default/default.settings.php' => 'sites/default/settings.php']);
-    $fetcher->fetch('8.1.1', $this->tmpDir);
+    $fetcher = new FileFetcher(new RemoteFilesystem(new NullIO()), 'http://cgit.drupalcode.org/drupal/plain/{path}?h={version}', new NullIO());
+    $fetcher->setFilenames([
+      'sites/default/default.settings.php' => 'sites/default/settings.php',
+    ]);
+    $fetcher->fetch('8.1.1', $this->tmpDir, false);
     $this->assertFileExists($this->tmpDir . '/sites/default/settings.php');
   }
 }