Php only Repository::getsize (#174)

Co-authored-by: Graham Campbell <GrahamCampbell@users.noreply.github.com>

Author: phpfui

src/Gitonomy/Git/Repository.php

@@ -422,30 +422,19 @@ public function getDiff($revisions)
     /**
      * Returns the size of repository, in kilobytes.
      *
-     * @throws RuntimeException An error occurred while computing size
-     *
      * @return int A sum, in kilobytes
      */
     public function getSize()
     {
-        $process = new Process(['du', '-skc', $this->gitDir]);
-        $process->run();
-
-        if (!preg_match('/(\d+)\s+total$/', trim($process->getOutput()), $vars)) {
-            $message = sprintf("Unable to parse process output\ncommand: %s\noutput: %s", $process->getCommandLine(), $process->getOutput());
-
-            if (null !== $this->logger) {
-                $this->logger->error($message);
+        $totalBytes = 0;
+        $path = realpath($this->gitDir);
+        if ($path && file_exists($path)) {
+            foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \FilesystemIterator::SKIP_DOTS)) as $object) {
+                $totalBytes += $object->getSize();
             }
-
-            if (true === $this->debug) {
-                throw new RuntimeException('unable to parse repository size output');
-            }
-
-            return;
         }
 
-        return $vars[1];
+        return (int) ($totalBytes / 1000 + 0.5);
     }
 
     /**

tests/Gitonomy/Git/Tests/RepositoryTest.php

@@ -35,7 +35,8 @@ public function testGetBlob_WithExisting_Works($repository)
     public function testGetSize($repository)
     {
         $size = $repository->getSize();
-        $this->assertGreaterThan(70, $size, 'Repository is greater than 70KB');
+        $this->assertGreaterThanOrEqual(69, $size, 'Repository is at least 69KB');
+        $this->assertLessThan(80, $size, 'Repository is less than 80KB');
     }
 
     public function testIsBare()