Merge pull request #45 from amacarthur/fork-feature

add fork_project command

README.md

@@ -33,6 +33,10 @@ Import repo
 
     ./bin/gitlab-projects import-project randx/six.git https://github.com/randx/six.git
 
+Fork repo
+
+    ./bin/gitlab-projects fork-project gitlab/gitlab-ci.git randx
+
 
 ### Keys: 
 

bin/gitlab-projects

@@ -13,6 +13,8 @@ require_relative '../lib/gitlab_init'
 #
 #   /bin/gitlab-projects mv-project gitlab/gitlab-ci.git randx/fork.git
 #
+#   /bin/gitlab-projects fork-project gitlab/gitlab-ci.git randx
+#
 #   /bin/gitlab-projects import-project randx/six.git https://github.com/randx/six.git
 #
 require File.join(ROOT_PATH, 'lib', 'gitlab_projects')

lib/gitlab_projects.rb

@@ -29,6 +29,7 @@ class GitlabProjects
     when 'rm-project';  rm_project
     when 'mv-project';  mv_project
     when 'import-project'; import_project
+    when 'fork-project'; fork_project
     else
       puts 'not allowed'
       false
@@ -44,10 +45,7 @@ class GitlabProjects
   end
 
   def create_hooks_cmd
-    pr_hook_path = File.join(ROOT_PATH, 'hooks', 'post-receive')
-    up_hook_path = File.join(ROOT_PATH, 'hooks', 'update')
-
-    "ln -s #{pr_hook_path} #{full_path}/hooks/post-receive && ln -s #{up_hook_path} #{full_path}/hooks/update"
+    create_hooks_to(full_path)
   end
 
   def rm_project
@@ -84,4 +82,33 @@ class GitlabProjects
 
     FileUtils.mv(full_path, new_full_path)
   end
+
+  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.split('/')[-1])
+    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)
+  end
+
+  private
+
+  def create_hooks_to(dest_path)
+    pr_hook_path = File.join(ROOT_PATH, 'hooks', 'post-receive')
+    up_hook_path = File.join(ROOT_PATH, 'hooks', 'update')
+
+    "ln -s #{pr_hook_path} #{dest_path}/hooks/post-receive && ln -s #{up_hook_path} #{dest_path}/hooks/update"
+
+  end
+
 end

spec/gitlab_projects_spec.rb

@@ -18,7 +18,7 @@ describe GitlabProjects do
 
     it { @gl_projects.project_name.should == repo_name }
     it { @gl_projects.instance_variable_get(:@command).should == 'add-project' }
-    it { @gl_projects.instance_variable_get(:@full_path).should == '/home/git/repositories/gitlab-ci.git' }
+    it { @gl_projects.instance_variable_get(:@full_path).should == "#{GitlabConfig.new.repos_path}/gitlab-ci.git" }
   end
 
   describe :add_project do
@@ -77,6 +77,35 @@ describe GitlabProjects do
     end
   end
 
+  describe :fork_project do
+    let(:source_repo_name) { File.join('source-namespace', repo_name) }
+    let(:dest_repo) { File.join(tmp_repos_path, 'forked-to-namespace', repo_name) }
+    let(:gl_projects_fork) { build_gitlab_projects('fork-project', source_repo_name, 'forked-to-namespace') }
+    let(:gl_projects_import) { build_gitlab_projects('import-project', source_repo_name, 'https://github.com/randx/six.git') }
+
+    before do
+      gl_projects_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
+      # 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
+
   describe :exec do
     it 'should puts message if unknown command arg' do
       gitlab_projects = build_gitlab_projects('edit-project', repo_name)
@@ -89,7 +118,7 @@ describe GitlabProjects do
     argv(*args)
     gl_projects = GitlabProjects.new
     gl_projects.stub(repos_path: tmp_repos_path)
-    gl_projects.stub(full_path: tmp_repo_path)
+    gl_projects.stub(full_path: File.join(tmp_repos_path, gl_projects.project_name))
     gl_projects
   end