additional fork check and enhanced tests

lib/gitlab_projects.rb

@@ -86,11 +86,16 @@ class GitlabProjects
   def fork_project
     new_namespace = ARGV.shift
 
+    # destination namespace must be provided
     return false unless new_namespace
 
+    #destination namespace must exist
     namespaced_path = File.join(repos_path, new_namespace)
     return false unless File.exists?(namespaced_path)
+
+    #a project of the same name cannot already be within the destination namespace
     full_destination_path = File.join(namespaced_path, project_name)
+    return false if File.exists?(full_destination_path)
 
     cmd = "cd #{namespaced_path} && git clone --bare #{full_path} && #{create_hooks_to(full_destination_path)}"
     system(cmd)

spec/gitlab_projects_spec.rb

@@ -79,19 +79,30 @@ describe GitlabProjects do
 
   describe :fork_project do
     let(:gl_project_import) { build_gitlab_projects('import-project', repo_name, 'https://github.com/randx/six.git') }
-    let(:gl_projects) { build_gitlab_projects('fork-project', repo_name, 'forked-to-namespace')}
+    let(:gl_projects_fork) { build_gitlab_projects('fork-project', repo_name, 'forked-to-namespace')}
+    let(:dest_repo) { File.join(tmp_repos_path, 'forked-to-namespace', repo_name) }
 
     before do
       FileUtils.mkdir_p(tmp_repo_path)
-      FileUtils.mkdir_p(File.join(tmp_repos_path, 'forked-to-namespace'))
       gl_project_import.exec
     end
 
+    it "should not fork into a namespace that doesn't exist" do
+      gl_projects_fork.exec.should be_false
+    end
+
     it "should fork the repo" do
-      gl_projects.exec
-      File.exists?(File.join(tmp_repos_path, 'forked-to-namespace', repo_name)).should be_true
-      File.exists?(File.join(tmp_repos_path, 'forked-to-namespace', repo_name, '/hooks/update')).should be_true
-      File.exists?(File.join(tmp_repos_path, 'forked-to-namespace', repo_name, '/hooks/post-receive')).should be_true
+      # create destination namespace
+      FileUtils.mkdir_p(File.join(tmp_repos_path, 'forked-to-namespace'))
+      gl_projects_fork.exec.should be_true
+      File.exists?(dest_repo).should be_true
+      File.exists?(File.join(dest_repo, '/hooks/update')).should be_true
+      File.exists?(File.join(dest_repo, '/hooks/post-receive')).should be_true
+    end
+
+    it "should not fork if a project of the same name already exists" do
+      #trying to fork again should fail as the repo already exists
+      gl_projects_fork.exec.should be_false
     end
   end