Refactoring builds out into separate model types (Github, Bitbucket, Local) and builder to use build->createWorkingCopy() to make build directory. Fixes #29

PHPCI/Model/Build/RemoteGitBuild.php

@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * Build model for table: build
+ */
+
+namespace PHPCI\Model\Build;
+use PHPCI\Model\Build;
+use PHPCI\Builder;
+use Symfony\Component\Yaml\Parser as YamlParser;
+
+/**
+ * Build Model
+ * @uses PHPCI\Model\Build
+ */
+abstract class RemoteGitBuild extends Build
+{
+	abstract protected function getCloneUrl();
+
+	public function createWorkingCopy(Builder $builder, $buildPath)
+	{
+		$yamlParser	= new YamlParser();
+		$success	= true;
+		$key		= trim($this->getProject()->getGitKey());
+
+		if(!empty($key)) {
+			$success = $this->cloneBySsh($builder, $buildPath);
+		}
+		else {
+			$success = $this->cloneByHttp($builder, $buildPath);
+		}
+
+		if(!$success) {
+			$builder->logFailure('Failed to clone remote git repository.');
+			return false;
+		}
+
+		if(!is_file($buildPath . 'phpci.yml')) {
+			$builder->logFailure('Project does not contain a phpci.yml file.');
+			return false;
+		}
+
+		$yamlFile = file_get_contents($buildPath . 'phpci.yml');
+		$builder->setConfigArray($yamlParser->parse($yamlFile));
+
+		return true;
+	}
+
+	protected function cloneByHttp(Builder $builder, $to)
+	{
+		return $builder->executeCommand('git clone -b ' .$this->getBranch() . ' ' .$this->getCloneUrl().' '.$to);
+	}
+
+	protected function cloneBySsh(Builder $builder, $to)
+	{
+		// Copy the project's keyfile to disk:
+		$keyFile = realpath($to) . '.key';
+		file_put_contents($keyFile, $this->getProject()->getGitKey());
+		chmod($keyFile, 0600);
+
+		// Use the key file to do an SSH clone:
+		$success = $builder->executeCommand('ssh-agent ssh-add '.$keyFile.' && git clone -b ' .$build->getBranch() . ' ' .$this->getCloneUrl().' '.$to.' && ssh-agent -k');
+		
+		// Remove the key file:
+		unlink($keyFile);
+
+		return $success;
+	}
+}