Merge branch 'fork-to-group' into 'master'

Fork to group

Fixes #1592

* project can be forked into group
* fork link always lead to fork page where you select namespace where to fork

See merge request !1253

19 files changed, 225 insertions, 59 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 3739a9a0584..b19722581c7 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -50,6 +50,7 @@ v 7.4.0
   - Do not delete tmp/repositories itself during clean-up, only its contents
   - Support for backup uploads to remote storage
   - Prevent notes polling when there are not notes
+  - Internal ForkService: Prepare support for fork to a given namespace
   - API: Add support for forking a project via the API (Bernhard Kaindl)
   - API: filter project issues by milestone (Julien Bianchi)
   - Fail harder in the backup script
diff --git a/app/assets/javascripts/dispatcher.js.coffee b/app/assets/javascripts/dispatcher.js.coffee
index fb1adbc4b3d..e8b71a71945 100644
--- a/app/assets/javascripts/dispatcher.js.coffee
+++ b/app/assets/javascripts/dispatcher.js.coffee
@@ -75,6 +75,8 @@ class Dispatcher
         # Ensure we don't create a particular shortcut handler here. This is
         # already created, where the network graph is created.
         shortcut_handler = true
+      when 'projects:forks:new'
+        new ProjectFork()
       when 'users:show'
         new User()
 
diff --git a/app/assets/javascripts/project_fork.js.coffee b/app/assets/javascripts/project_fork.js.coffee
new file mode 100644
index 00000000000..e15a1c4ef76
--- /dev/null
+++ b/app/assets/javascripts/project_fork.js.coffee
@@ -0,0 +1,5 @@
+class @ProjectFork
+  constructor: ->
+    $('.fork-thumbnail a').on 'click', ->
+      $('.fork-namespaces').hide()
+      $('.save-project-loader').show()
diff --git a/app/assets/stylesheets/sections/projects.scss b/app/assets/stylesheets/sections/projects.scss
index b4ee5ccc8d7..76a7507d699 100644
--- a/app/assets/stylesheets/sections/projects.scss
+++ b/app/assets/stylesheets/sections/projects.scss
@@ -270,3 +270,28 @@ ul.nav.nav-projects-tabs {
     color: #999;
   }
 }
+
+.fork-namespaces {
+  .thumbnail {
+
+    &.fork-exists-thumbnail {
+      border-color: #EEE;
+
+      .caption {
+        color: #999;
+      }
+    }
+
+    &.fork-thumbnail {
+      border-color: #AAA;
+
+      &:hover {
+        background-color: $hover;
+      }
+    }
+
+    a {
+      text-decoration: none;
+    }
+  }
+}
diff --git a/app/controllers/projects/forks_controller.rb b/app/controllers/projects/forks_controller.rb
new file mode 100644
index 00000000000..a0481d11582
--- /dev/null
+++ b/app/controllers/projects/forks_controller.rb
@@ -0,0 +1,22 @@
+class Projects::ForksController < Projects::ApplicationController
+  # Authorize
+  before_filter :authorize_download_code!
+  before_filter :require_non_empty_project
+
+  def new
+    @namespaces = current_user.manageable_namespaces
+    @namespaces.delete(@project.namespace)
+  end
+
+  def create
+    namespace = Namespace.find(params[:namespace_id])
+    @forked_project = ::Projects::ForkService.new(project, current_user, namespace: namespace).execute
+
+    if @forked_project.saved? && @forked_project.forked?
+      redirect_to(@forked_project, notice: 'Project was successfully forked.')
+    else
+      @title = 'Fork project'
+      render :error
+    end
+  end
+end
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index b5910c902e4..b3181fa310e 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -111,22 +111,6 @@ class ProjectsController < ApplicationController
     end
   end
 
-  def fork
-    @forked_project = ::Projects::ForkService.new(project, current_user).execute
-
-    respond_to do |format|
-      format.html do
-        if @forked_project.saved? && @forked_project.forked?
-          redirect_to(@forked_project, notice: 'Project was successfully forked.')
-        else
-          @title = 'Fork project'
-          render "fork"
-        end
-      end
-      format.js
-    end
-  end
-
   def autocomplete_sources
     note_type = params['type']
     note_id = params['type_id']
diff --git a/app/helpers/namespaces_helper.rb b/app/helpers/namespaces_helper.rb
index bf25dce2301..2bcfde62830 100644
--- a/app/helpers/namespaces_helper.rb
+++ b/app/helpers/namespaces_helper.rb
@@ -25,4 +25,12 @@ module NamespacesHelper
 
     hidden_field_tag(id, value, class: css_class)
   end
+
+  def namespace_icon(namespace, size = 40)
+    if namespace.kind_of?(Group)
+      group_icon(namespace.path)
+    else
+      avatar_icon(namespace.owner.email, size)
+    end
+  end
 end
diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index c0c6de0ee7d..ea4b48fdd7f 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -90,4 +90,8 @@ class Namespace < ActiveRecord::Base
   def kind
     type == 'Group' ? 'group' : 'user'
   end
+
+  def find_fork_of(project)
+    projects.joins(:forked_project_link).where('forked_project_links.forked_from_project_id = ?', project.id).first
+  end
 end
diff --git a/app/models/user.rb b/app/models/user.rb
index d400edc0df5..fc191a78f53 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -551,4 +551,14 @@ class User < ActiveRecord::Base
       UsersStarProject.create!(project: project, user: self)
     end
   end
+
+  def manageable_namespaces
+    @manageable_namespaces ||=
+      begin
+        namespaces = []
+        namespaces << namespace
+        namespaces += owned_groups
+        namespaces += masters_groups
+      end
+  end
 end
diff --git a/app/services/projects/fork_service.rb b/app/services/projects/fork_service.rb
index a59311bf942..4930660055a 100644
--- a/app/services/projects/fork_service.rb
+++ b/app/services/projects/fork_service.rb
@@ -2,11 +2,9 @@ module Projects
   class ForkService < BaseService
     include Gitlab::ShellAdapter
 
-    def initialize(project, user)
-      @from_project, @current_user = project, user
-    end
-
     def execute
+      @from_project = @project
+
       project_params = {
         visibility_level: @from_project.visibility_level,
         description: @from_project.description,
@@ -15,8 +13,18 @@ module Projects
       project = Project.new(project_params)
       project.name = @from_project.name
       project.path = @from_project.path
-      project.namespace = current_user.namespace
-      project.creator = current_user
+      project.creator = @current_user
+
+      if namespace = @params[:namespace]
+        project.namespace = namespace
+      else
+        project.namespace = @current_user.namespace
+      end
+
+      unless @current_user.can?(:create_projects, project.namespace)
+        project.errors.add(:namespace, 'insufficient access rights')
+        return project
+      end
 
       # If the project cannot save, we do not want to trigger the project destroy
       # as this can have the side effect of deleting a repo attached to an existing
@@ -27,7 +35,7 @@ module Projects
             #First save the DB entries as they can be rolled back if the repo fork fails
             project.build_forked_project_link(forked_to_project_id: project.id, forked_from_project_id: @from_project.id)
             if project.save
-              project.team << [current_user, :master]
+              project.team << [@current_user, :master]
             end
             #Now fork the repo
             unless gitlab_shell.fork_repository(@from_project.path_with_namespace, project.namespace.path)
@@ -42,8 +50,8 @@ module Projects
       else
         project.errors.add(:base, "Invalid fork destination")
       end
-      project
 
+      project
     end
   end
 end
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index 672a91e0eef..8b9260d661c 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -16,11 +16,11 @@
       - unless @project.empty_repo?
         .fork-buttons
           - if current_user && can?(current_user, :fork_project, @project) && @project.namespace != current_user.namespace
-            - if current_user.already_forked?(@project)
+            - if current_user.already_forked?(@project) && current_user.manageable_namespaces.size < 2
               = link_to project_path(current_user.fork_of(@project)), title: 'Go to my fork' do
                 = link_to_toggle_fork
             - else
-              = link_to fork_project_path(@project), title: "Fork project", method: "POST" do
+              = link_to new_project_fork_path(@project), title: "Fork project" do
                 = link_to_toggle_fork
 
       .star-buttons
diff --git a/app/views/projects/fork.html.haml b/app/views/projects/fork.html.haml
deleted file mode 100644
index d8f5c7b98d6..00000000000
--- a/app/views/projects/fork.html.haml
+++ /dev/null
@@ -1,19 +0,0 @@
-.alert.alert-danger.alert-block
-  %h4
-    %i.fa.fa-code-fork
-    Fork Error!
-  %p
-    You tried to fork
-    = link_to_project @project
-    but it failed for the following reason:
-
-
-  - if @forked_project && @forked_project.errors.any?
-    %p
-      &ndash;
-      = @forked_project.errors.full_messages.first
-
-  %p
-    = link_to fork_project_path(@project), title: "Fork", class: "btn", method: "POST" do
-      %i.fa.fa-code-fork
-      Try to Fork again
diff --git a/app/views/projects/forks/error.html.haml b/app/views/projects/forks/error.html.haml
new file mode 100644
index 00000000000..76d3aa5bf00
--- /dev/null
+++ b/app/views/projects/forks/error.html.haml
@@ -0,0 +1,20 @@
+- if @forked_project && !@forked_project.saved?
+  .alert.alert-danger.alert-block
+    %h4
+      %i.fa.fa-code-fork
+      Fork Error!
+    %p
+      You tried to fork
+      = link_to_project @project
+      but it failed for the following reason:
+
+
+    - if @forked_project && @forked_project.errors.any?
+      %p
+        &ndash;
+        = @forked_project.errors.full_messages.first
+
+    %p
+      = link_to new_project_fork_path(@project), title: "Fork", class: "btn" do
+        %i.fa.fa-code-fork
+        Try to Fork again
diff --git a/app/views/projects/forks/new.html.haml b/app/views/projects/forks/new.html.haml
new file mode 100644
index 00000000000..54f2cef023b
--- /dev/null
+++ b/app/views/projects/forks/new.html.haml
@@ -0,0 +1,38 @@
+%h3.page-title Fork project
+%p.lead Select namespace where to fork this project
+%hr
+
+.fork-namespaces
+  - @namespaces.in_groups_of(6, false) do |group|
+    .row
+      - group.each do |namespace|
+        .col-md-2.col-sm-3
+          - if fork = namespace.find_fork_of(@project)
+            .thumbnail.fork-exists-thumbnail
+              = link_to project_path(fork), title: "Visit project fork", class: 'has_tooltip' do
+                = image_tag namespace_icon(namespace, 200)
+                .caption
+                  %h4=namespace.human_name
+                  %p
+                    = namespace.path
+          - else
+            .thumbnail.fork-thumbnail
+              = link_to project_fork_path(@project, namespace_id: namespace.id), title: "Fork here", method: "POST", class: 'has_tooltip' do
+                = image_tag namespace_icon(namespace, 200)
+                .caption
+                  %h4=namespace.human_name
+                  %p
+                    = namespace.path
+
+  %p.light
+    Fork is a copy of a project repository.
+    %br
+    Forking a repository allows you to do changes without affecting the original project.
+
+.save-project-loader.hide
+  .center
+    %h2
+      %i.fa.fa-spinner.fa-spin
+      Forking repository
+    %p Please wait a moment, this page will automatically refresh when ready.
+
diff --git a/config/routes.rb b/config/routes.rb
index 2534153758b..470fe7f4dc1 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -181,7 +181,6 @@ Gitlab::Application.routes.draw do
   resources :projects, constraints: { id: /[a-zA-Z.0-9_\-]+\/[a-zA-Z.0-9_\-]+/ }, except: [:new, :create, :index], path: "/" do
     member do
       put :transfer
-      post :fork
       post :archive
       post :unarchive
       post :upload_image
@@ -214,11 +213,11 @@ Gitlab::Application.routes.draw do
 
       match "/compare/:from...:to" => "compare#show", as: "compare", via: [:get, :post], constraints: {from: /.+/, to: /.+/}
 
-        resources :snippets, constraints: {id: /\d+/} do
-          member do
-            get "raw"
-          end
+      resources :snippets, constraints: {id: /\d+/} do
+        member do
+          get "raw"
         end
+      end
 
       resources :wikis, only: [:show, :edit, :destroy, :create], constraints: {id: /[a-zA-Z.0-9_\-\/]+/} do
         collection do
@@ -232,6 +231,8 @@ Gitlab::Application.routes.draw do
         end
       end
 
+      resource :fork, only: [:new, :create]
+
       resource :repository, only: [:show] do
         member do
           get "archive", constraints: { format: Gitlab::Regex.archive_formats_regex }
diff --git a/features/project/fork.feature b/features/project/fork.feature
index d3d1180db04..22f68e5b340 100644
--- a/features/project/fork.feature
+++ b/features/project/fork.feature
@@ -6,9 +6,11 @@ Feature: Project Fork
 
   Scenario: User fork a project
     Given I click link "Fork"
+    When I fork to my namespace
     Then I should see the forked project page
 
   Scenario: User already has forked the project
     Given I already have a project named "Shop" in my namespace
     And I click link "Fork"
+    When I fork to my namespace
     Then I should see a "Name has already been taken" warning
diff --git a/features/steps/project/fork.rb b/features/steps/project/fork.rb
index da50ba9ced0..8e58597db20 100644
--- a/features/steps/project/fork.rb
+++ b/features/steps/project/fork.rb
@@ -25,4 +25,10 @@ class Spinach::Features::ProjectFork < Spinach::FeatureSteps
   step 'I should see a "Name has already been taken" warning' do
     page.should have_content "Name has already been taken"
   end
+
+  step 'I fork to my namespace' do
+    within '.fork-namespaces' do
+      click_link current_user.name
+    end
+  end
 end
diff --git a/spec/routing/project_routing_spec.rb b/spec/routing/project_routing_spec.rb
index 4b2eb42c709..ea584c9802d 100644
--- a/spec/routing/project_routing_spec.rb
+++ b/spec/routing/project_routing_spec.rb
@@ -55,7 +55,6 @@ end
 
 #      projects POST   /projects(.:format)     projects#create
 #   new_project GET    /projects/new(.:format) projects#new
-#  fork_project POST   /:id/fork(.:format)     projects#fork
 # files_project GET    /:id/files(.:format)    projects#files
 #  edit_project GET    /:id/edit(.:format)     projects#edit
 #       project GET    /:id(.:format)          projects#show
@@ -70,10 +69,6 @@ describe ProjectsController, "routing" do
     get("/projects/new").should route_to('projects#new')
   end
 
-  it "to #fork" do
-    post("/gitlab/gitlabhq/fork").should route_to('projects#fork', id: 'gitlab/gitlabhq')
-  end
-
   it "to #edit" do
     get("/gitlab/gitlabhq/edit").should route_to('projects#edit', id: 'gitlab/gitlabhq')
   end
@@ -462,3 +457,13 @@ describe Projects::GraphsController, "routing" do
     get("/gitlab/gitlabhq/graphs/master").should route_to('projects/graphs#show', project_id: 'gitlab/gitlabhq', id: 'master')
   end
 end
+
+describe Projects::ForksController, "routing" do
+  it "to #new" do
+    get("/gitlab/gitlabhq/fork/new").should route_to("projects/forks#new", project_id: 'gitlab/gitlabhq')
+  end
+
+  it "to #create" do
+    post("/gitlab/gitlabhq/fork").should route_to("projects/forks#create", project_id: 'gitlab/gitlabhq')
+  end
+end
diff --git a/spec/services/projects/fork_service_spec.rb b/spec/services/projects/fork_service_spec.rb
index 0edc3a8e807..5c80345c2b3 100644
--- a/spec/services/projects/fork_service_spec.rb
+++ b/spec/services/projects/fork_service_spec.rb
@@ -42,10 +42,54 @@ describe Projects::ForkService do
     end
   end
 
-  def fork_project(from_project, user, fork_success = true)
-    context = Projects::ForkService.new(from_project, user)
-    shell = double("gitlab_shell")
-    shell.stub(fork_repository: fork_success)
+  describe :fork_to_namespace do
+    before do
+      @group_owner = create(:user)
+      @developer   = create(:user)
+      @project     = create(:project, creator_id: @group_owner.id,
+                                      star_count: 777,
+                                      description: 'Wow, such a cool project!')
+      @group = create(:group)
+      @group.add_user(@group_owner, GroupMember::OWNER)
+      @group.add_user(@developer,   GroupMember::DEVELOPER)
+      @opts = { namespace: @group }
+    end
+
+    context 'fork project for group' do
+      it 'group owner successfully forks project into the group' do
+        to_project = fork_project(@project, @group_owner, true, @opts)
+        to_project.owner.should       == @group
+        to_project.namespace.should   == @group
+        to_project.name.should        == @project.name
+        to_project.path.should        == @project.path
+        to_project.description.should == @project.description
+        to_project.star_count.should     be_zero
+      end
+    end
+
+    context 'fork project for group when user not owner' do
+      it 'group developer should fail to fork project into the group' do
+        to_project = fork_project(@project, @developer, true, @opts)
+        to_project.errors[:namespace].should == ['insufficient access rights']
+      end
+    end
+
+    context 'project already exists in group' do
+      it 'should fail due to validation, not transaction failure' do
+        existing_project = create(:project, name: @project.name,
+                                            namespace: @group)
+        to_project = fork_project(@project, @group_owner, true, @opts)
+        existing_project.persisted?.should be_true
+        to_project.errors[:base].should == ['Invalid fork destination']
+        to_project.errors[:name].should == ['has already been taken']
+        to_project.errors[:path].should == ['has already been taken']
+      end
+    end
+  end
+
+  def fork_project(from_project, user, fork_success = true, params = {})
+    context = Projects::ForkService.new(from_project, user, params)
+    shell = double('gitlab_shell').stub(fork_repository: fork_success)
     context.stub(gitlab_shell: shell)
     context.execute
   end