Auto remove old backup files

driesvints · driesvints · commit b95723e192a3 · 2015-02-12T22:24:27.000+01:00
diff --git a/app/Lio/Backup/BackupManager.php b/app/Lio/Backup/BackupManager.php
@@ -0,0 +1,49 @@
+<?php
+namespace Lio\Backup;
+
+use Illuminate\Support\Collection;
+use League\Flysystem\Filesystem;
+
+class BackupManager
+{
+    /**
+     * @var \League\Flysystem\Filesystem
+     */
+    private $filesystem;
+
+    /**
+     * @param \League\Flysystem\Filesystem $filesystem
+     */
+    public function __construct(Filesystem $filesystem)
+    {
+        $this->filesystem = $filesystem;
+    }
+
+    /**
+     * Remove old backups based on their timestamps
+     *
+     * @param int $keep The amount of backup files to keep
+     * @return array
+     */
+    public function removeOldBackups($keep = 5)
+    {
+        // Get all the files from the backup folder
+        $files = new Collection($this->filesystem->listFiles());
+
+        // Sort the backup files by their creation date.
+        $files->sortBy(function ($file) {
+            return $this->filesystem->getTimestamp($file);
+        });
+
+        // Slice the old backup files off from the amount to keep.
+        $filesToDelete = $files->slice($keep);
+
+        // Delete all the old backup files.
+        foreach ($filesToDelete as $file) {
+            $this->filesystem->delete($file);
+        }
+
+        // Return the files which were deleted.
+        return $filesToDelete->toArray();
+    }
+}
diff --git a/spec/Lio/Backup/BackupManagerSpec.php b/spec/Lio/Backup/BackupManagerSpec.php
@@ -0,0 +1,36 @@
+<?php
+namespace spec\Lio\Backup;
+
+use League\Flysystem\Filesystem;
+use PhpSpec\ObjectBehavior;
+
+class BackupManagerSpec extends ObjectBehavior
+{
+    function let(Filesystem $filesystem)
+    {
+        $this->beConstructedWith($filesystem);
+    }
+
+    function it_is_initializable()
+    {
+        $this->shouldHaveType('Lio\Backup\BackupManager');
+    }
+
+    function it_can_remove_old_backups(Filesystem $filesystem)
+    {
+        $files = ['foo.sql', 'foo1.sql', 'foo2.sql', 'foo3.sql', 'foo4.sql', 'foo5.sql', 'foo6.sql'];
+
+        $filesystem->listFiles()->willReturn($files);
+        $filesystem->getTimestamp('foo.sql')->willReturn(100);
+        $filesystem->getTimestamp('foo1.sql')->willReturn(10000);
+        $filesystem->getTimestamp('foo2.sql')->willReturn(100);
+        $filesystem->getTimestamp('foo3.sql')->willReturn(100);
+        $filesystem->getTimestamp('foo4.sql')->willReturn(500);
+        $filesystem->getTimestamp('foo5.sql')->willReturn(100);
+        $filesystem->getTimestamp('foo6.sql')->willReturn(100);
+        $filesystem->delete('foo1.sql')->shouldBeCalled();
+        $filesystem->delete('foo4.sql')->shouldBeCalled();
+
+        $this->removeOldBackups(5)->willReturn(['foo1.sql', 'foo4.sql']);
+    }
+}
