Merge branch '22348-gitea-importer' into 'master'

It adds a brand new importer for Gitea!

This is a continuation of !6945 started by @bkc.

Gitea aims to be 100% GitHub-compatible but there's a few differences:

- Gitea is not an OAuth provider (yet): https://github.com/go-gitea/gitea/issues/27
  - This means we cannot map Gitea users given an assignee ID => assignees are not set on imported issues and merge requests
- No releases API for now: https://github.com/go-gitea/gitea/issues/330
- API version is `v1` (GitHub is `v3`)
- The IID field for milestones is `id` compared to `number` in GitHub.
- Issues, PRs, milestones, labels don't have a `url` field (the importer now fallback to `''` in that case)

**Known issues:**

- Comments are not imported because comments JSON always have a blank `html_url`/`issue_url`/`pull_request_url`, so the IID cannot be extracted and the issuable cannot be found... :( This is tracked in https://github.com/go-gitea/gitea/issues/401, and solved by https://github.com/gogits/gogs/pull/3624 but this needs to be submitted / merged in Gitea.

This is noted in the documentation.

## Are there points in the code the reviewer needs to double check?

1. I've made `Import::GiteaController` inherit from `Import::GithubController` since both controllers should be identical in the long-term and their current differences are small.
1. I've added a base `IssuableFormatter` class from which `IssueFormatter` & `PullRequestFormatter` inherit
1. I've added shared examples for GitHub/Gitea importer classes
1. I've made `Gitlab::ImportSources` more robust and tested! 🎄 
1. I've added routing specs for import routes! 🎄 

Closes #22348

See merge request !8116

app/controllers/application_controller.rb

@@ -25,7 +25,7 @@ class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
 
   helper_method :can?, :current_application_settings
-  helper_method :import_sources_enabled?, :github_import_enabled?, :github_import_configured?, :gitlab_import_enabled?, :gitlab_import_configured?, :bitbucket_import_enabled?, :bitbucket_import_configured?, :google_code_import_enabled?, :fogbugz_import_enabled?, :git_import_enabled?, :gitlab_project_import_enabled?
+  helper_method :import_sources_enabled?, :github_import_enabled?, :gitea_import_enabled?, :github_import_configured?, :gitlab_import_enabled?, :gitlab_import_configured?, :bitbucket_import_enabled?, :bitbucket_import_configured?, :google_code_import_enabled?, :fogbugz_import_enabled?, :git_import_enabled?, :gitlab_project_import_enabled?
 
   rescue_from Encoding::CompatibilityError do |exception|
     log_exception(exception)
@@ -245,6 +245,10 @@ class ApplicationController < ActionController::Base
     current_application_settings.import_sources.include?('github')
   end
 
+  def gitea_import_enabled?
+    current_application_settings.import_sources.include?('gitea')
+  end
+
   def github_import_configured?
     Gitlab::OAuth::Provider.enabled?(:github)
   end

app/controllers/import/gitea_controller.rb

+class Import::GiteaController < Import::GithubController
+  def new
+    if session[access_token_key].present? && session[host_key].present?
+      redirect_to status_import_url
+    end
+  end
+
+  def personal_access_token
+    session[host_key] = params[host_key]
+    super
+  end
+
+  def status
+    @gitea_host_url = session[host_key]
+    super
+  end
+
+  private
+
+  def host_key
+    :"#{provider}_host_url"
+  end
+
+  # Overriden methods
+  def provider
+    :gitea
+  end
+
+  # Gitea is not yet an OAuth provider
+  # See https://github.com/go-gitea/gitea/issues/27
+  def logged_in_with_provider?
+    false
+  end
+
+  def provider_auth
+    if session[access_token_key].blank? || session[host_key].blank?
+      redirect_to new_import_gitea_url,
+        alert: 'You need to specify both an Access Token and a Host URL.'
+    end
+  end
+
+  def client_options
+    { host: session[host_key], api_version: 'v1' }
+  end
+end

app/controllers/import/github_controller.rb

 class Import::GithubController < Import::BaseController
-  before_action :verify_github_import_enabled
-  before_action :github_auth, only: [:status, :jobs, :create]
+  before_action :verify_import_enabled
+  before_action :provider_auth, only: [:status, :jobs, :create]
 
-  rescue_from Octokit::Unauthorized, with: :github_unauthorized
-
-  helper_method :logged_in_with_github?
+  rescue_from Octokit::Unauthorized, with: :provider_unauthorized
 
   def new
-    if logged_in_with_github?
-      go_to_github_for_permissions
-    elsif session[:github_access_token]
-      redirect_to status_import_github_url
+    if logged_in_with_provider?
+      go_to_provider_for_permissions
+    elsif session[access_token_key]
+      redirect_to status_import_url
     end
   end
 
   def callback
-    session[:github_access_token] = client.get_token(params[:code])
-    redirect_to status_import_github_url
+    session[access_token_key] = client.get_token(params[:code])
+    redirect_to status_import_url
   end
 
   def personal_access_token
-    session[:github_access_token] = params[:personal_access_token]
-    redirect_to status_import_github_url
+    session[access_token_key] = params[:personal_access_token]
+    redirect_to status_import_url
   end
 
   def status
     @repos = client.repos
-    @already_added_projects = current_user.created_projects.where(import_type: "github")
+    @already_added_projects = current_user.created_projects.where(import_type: provider)
     already_added_projects_names = @already_added_projects.pluck(:import_source)
 
-    @repos.reject!{ |repo| already_added_projects_names.include? repo.full_name }
+    @repos.reject! { |repo| already_added_projects_names.include? repo.full_name }
   end
 
   def jobs
-    jobs = current_user.created_projects.where(import_type: "github").to_json(only: [:id, :import_status])
+    jobs = current_user.created_projects.where(import_type: provider).to_json(only: [:id, :import_status])
     render json: jobs
   end
 
@@ -44,8 +42,8 @@ class Import::GithubController < Import::BaseController
     namespace_path = params[:target_namespace].presence || current_user.namespace_path
     @target_namespace = find_or_create_namespace(namespace_path, current_user.namespace_path)
 
-    if current_user.can?(:create_projects, @target_namespace)
-      @project = Gitlab::GithubImport::ProjectCreator.new(repo, @project_name, @target_namespace, current_user, access_params).execute
+    if can?(current_user, :create_projects, @target_namespace)
+      @project = Gitlab::GithubImport::ProjectCreator.new(repo, @project_name, @target_namespace, current_user, access_params, type: provider).execute
     else
       render 'unauthorized'
     end
@@ -54,34 +52,63 @@ class Import::GithubController < Import::BaseController
   private
 
   def client
-    @client ||= Gitlab::GithubImport::Client.new(session[:github_access_token])
+    @client ||= Gitlab::GithubImport::Client.new(session[access_token_key], client_options)
   end
 
-  def verify_github_import_enabled
-    render_404 unless github_import_enabled?
+  def verify_import_enabled
+    render_404 unless import_enabled?
   end
 
-  def github_auth
-    if session[:github_access_token].blank?
-      go_to_github_for_permissions
-    end
+  def go_to_provider_for_permissions
+    redirect_to client.authorize_url(callback_import_url)
   end
 
-  def go_to_github_for_permissions
-    redirect_to client.authorize_url(callback_import_github_url)
+  def import_enabled?
+    __send__("#{provider}_import_enabled?")
   end
 
-  def github_unauthorized
-    session[:github_access_token] = nil
-    redirect_to new_import_github_url,
-      alert: 'Access denied to your GitHub account.'
+  def new_import_url
+    public_send("new_import_#{provider}_url")
   end
 
-  def logged_in_with_github?
-    current_user.identities.exists?(provider: 'github')
+  def status_import_url
+    public_send("status_import_#{provider}_url")
+  end
+
+  def callback_import_url
+    public_send("callback_import_#{provider}_url")
+  end
+
+  def provider_unauthorized
+    session[access_token_key] = nil
+    redirect_to new_import_url,
+      alert: "Access denied to your #{Gitlab::ImportSources.title(provider.to_s)} account."
+  end
+
+  def access_token_key
+    :"#{provider}_access_token"
   end
 
   def access_params
-    { github_access_token: session[:github_access_token] }
+    { github_access_token: session[access_token_key] }
+  end
+
+  # The following methods are overriden in subclasses
+  def provider
+    :github
+  end
+
+  def logged_in_with_provider?
+    current_user.identities.exists?(provider: provider)
+  end
+
+  def provider_auth
+    if session[access_token_key].blank?
+      go_to_provider_for_permissions
+    end
+  end
+
+  def client_options
+    {}
   end
 end

app/helpers/import_helper.rb

@@ -4,8 +4,10 @@ module ImportHelper
     "#{namespace}/#{name}"
   end
 
-  def github_project_link(path_with_namespace)
-    link_to path_with_namespace, github_project_url(path_with_namespace), target: '_blank'
+  def provider_project_link(provider, path_with_namespace)
+    url = __send__("#{provider}_project_url", path_with_namespace)
+
+    link_to path_with_namespace, url, target: '_blank'
   end
 
   private
@@ -20,4 +22,8 @@ module ImportHelper
     provider = Gitlab.config.omniauth.providers.find { |p| p.name == 'github' }
     @github_url = provider.fetch('url', 'https://github.com') if provider
   end
+
+  def gitea_project_url(path_with_namespace)
+    "#{@gitea_host_url.sub(%r{/+\z}, '')}/#{path_with_namespace}"
+  end
 end

app/models/project.rb

@@ -533,6 +533,10 @@ class Project < ActiveRecord::Base
     import_type == 'gitlab_project'
   end
 
+  def gitea_import?
+    import_type == 'gitea'
+  end
+
   def check_limit
     unless creator.can_create_project? or namespace.kind == 'group'
       projects_limit = creator.projects_limit

app/services/projects/import_service.rb

@@ -4,15 +4,6 @@ module Projects
 
     class Error < StandardError; end
 
-    ALLOWED_TYPES = [
-      'bitbucket',
-      'fogbugz',
-      'gitlab',
-      'github',
-      'google_code',
-      'gitlab_project'
-    ]
-
     def execute
       add_repository_to_project unless project.gitlab_project_import?
 
@@ -64,14 +55,11 @@ module Projects
     end
 
     def has_importer?
-      ALLOWED_TYPES.include?(project.import_type)
+      Gitlab::ImportSources.importer_names.include?(project.import_type)
     end
 
     def importer
-      return Gitlab::ImportExport::Importer.new(project) if @project.gitlab_project_import?
-
-      class_name = "Gitlab::#{project.import_type.camelize}Import::Importer"
-      class_name.constantize.new(project)
+      Gitlab::ImportSources.importer(project.import_type).new(project)
     end
 
     def unknown_url?

app/views/import/_githubish_status.html.haml

+- provider = local_assigns.fetch(:provider)
+- provider_title = Gitlab::ImportSources.title(provider)
+
+%p.light
+  Select projects you want to import.
+%hr
+%p
+  = button_tag class: "btn btn-import btn-success js-import-all" do
+    Import all projects
+    = icon("spinner spin", class: "loading-icon")
+
+.table-responsive
+  %table.table.import-jobs
+    %colgroup.import-jobs-from-col
+    %colgroup.import-jobs-to-col
+    %colgroup.import-jobs-status-col
+    %thead
+      %tr
+        %th= "From #{provider_title}"
+        %th To GitLab
+        %th Status
+    %tbody
+      - @already_added_projects.each do |project|
+        %tr{id: "project_#{project.id}", class: "#{project_status_css_class(project.import_status)}"}
+          %td
+            = provider_project_link(provider, project.import_source)
+          %td
+            = link_to project.path_with_namespace, [project.namespace.becomes(Namespace), project]
+          %td.job-status
+            - if project.import_status == 'finished'
+              %span
+                %i.fa.fa-check
+                done
+            - elsif project.import_status == 'started'
+              %i.fa.fa-spinner.fa-spin
+              started
+            - else
+              = project.human_import_status_name
+
+      - @repos.each do |repo|
+        %tr{id: "repo_#{repo.id}"}
+          %td
+            = provider_project_link(provider, repo.full_name)
+          %td.import-target
+            %fieldset.row
+            .input-group
+              .project-path.input-group-btn
+                - if current_user.can_select_namespace?
+                  - selected = params[:namespace_id] || :current_user
+                  - opts = current_user.can_create_group? ? { extra_group: Group.new(name: repo.owner.login, path: repo.owner.login) } : {}
+                  = select_tag :namespace_id, namespaces_options(selected, opts.merge({ display_path: true })), { class: 'select2 js-select-namespace', tabindex: 1 }
+                - else
+                  = text_field_tag :path, current_user.namespace_path, class: "input-large form-control", tabindex: 1, disabled: true
+              %span.input-group-addon /
+              = text_field_tag :path, repo.name, class: "input-mini form-control", tabindex: 2, autofocus: true, required: true
+          %td.import-actions.job-status
+            = button_tag class: "btn btn-import js-add-to-import" do
+              Import
+              = icon("spinner spin", class: "loading-icon")
+
+.js-importer-status{ data: { jobs_import_path: "#{url_for([:jobs, :import, provider])}", import_path: "#{url_for([:import, provider])}" } }

app/views/import/gitea/new.html.haml

+- page_title "Gitea Import"
+- header_title "Projects", root_path
+
+%h3.page-title
+  = custom_icon('go_logo')
+  Import Projects from Gitea
+
+%p
+  To get started, please enter your Gitea Host URL and a
+  = succeed '.' do
+    = link_to 'Personal Access Token', 'https://github.com/gogits/go-gogs-client/wiki#access-token'
+
+= form_tag personal_access_token_import_gitea_path, class: 'form-horizontal' do
+  .form-group
+    = label_tag :gitea_host_url, 'Gitea Host URL', class: 'control-label'
+    .col-sm-4
+      = text_field_tag :gitea_host_url, nil, placeholder: 'https://try.gitea.io', class: 'form-control'
+  .form-group
+    = label_tag :personal_access_token, 'Personal Access Token', class: 'control-label'
+    .col-sm-4
+      = text_field_tag :personal_access_token, nil, class: 'form-control'
+  .form-actions
+    = submit_tag 'List Your Gitea Repositories', class: 'btn btn-create'

app/views/import/gitea/status.html.haml

+- page_title "Gitea Import"
+- header_title "Projects", root_path
+%h3.page-title
+  = custom_icon('go_logo')
+  Import Projects from Gitea
+
+= render 'import/githubish_status', provider: 'gitea'

app/views/import/github/status.html.haml

-- page_title "GitHub import"
+- page_title "GitHub Import"
 - header_title "Projects", root_path
 %h3.page-title
-  %i.fa.fa-github
-  Import projects from GitHub
+  = icon 'github', text: 'Import Projects from GitHub'
 
-%p.light
-  Select projects you want to import.
-%hr
-%p
-  = button_tag class: "btn btn-import btn-success js-import-all" do
-    Import all projects
-    = icon("spinner spin", class: "loading-icon")
-
-.table-responsive
-  %table.table.import-jobs
-    %colgroup.import-jobs-from-col
-    %colgroup.import-jobs-to-col
-    %colgroup.import-jobs-status-col
-    %thead
-      %tr
-        %th From GitHub
-        %th To GitLab
-        %th Status
-    %tbody
-      - @already_added_projects.each do |project|
-        %tr{id: "project_#{project.id}", class: "#{project_status_css_class(project.import_status)}"}
-          %td
-            = github_project_link(project.import_source)
-          %td
-            = link_to project.path_with_namespace, [project.namespace.becomes(Namespace), project]
-          %td.job-status
-            - if project.import_status == 'finished'
-              %span
-                %i.fa.fa-check
-                done
-            - elsif project.import_status == 'started'
-              %i.fa.fa-spinner.fa-spin
-              started
-            - else
-              = project.human_import_status_name
-
-      - @repos.each do |repo|
-        %tr{id: "repo_#{repo.id}"}
-          %td
-            = github_project_link(repo.full_name)
-          %td.import-target
-            %fieldset.row
-            .input-group
-              .project-path.input-group-btn
-                - if current_user.can_select_namespace?
-                  - selected = params[:namespace_id] || :current_user
-                  - opts = current_user.can_create_group? ? { extra_group: Group.new(name: repo.owner.login, path: repo.owner.login) } : {}
-                  = select_tag :namespace_id, namespaces_options(selected, opts.merge({ display_path: true })), { class: 'select2 js-select-namespace', tabindex: 1 }
-                - else
-                  = text_field_tag :path, current_user.namespace_path, class: "input-large form-control", tabindex: 1, disabled: true
-              %span.input-group-addon /
-              = text_field_tag :path, repo.name, class: "input-mini form-control", tabindex: 2, autofocus: true, required: true
-          %td.import-actions.job-status
-            = button_tag class: "btn btn-import js-add-to-import" do
-              Import
-              = icon("spinner spin", class: "loading-icon")
-
-.js-importer-status{ data: { jobs_import_path: "#{jobs_import_github_path}", import_path: "#{import_github_path}" } }
+= render 'import/githubish_status', provider: 'github'

app/views/projects/new.html.haml

@@ -68,6 +68,11 @@
                   - if fogbugz_import_enabled?
                     = link_to new_import_fogbugz_path, class: 'btn import_fogbugz' do
                       = icon('bug', text: 'Fogbugz')
+                %div
+                  - if gitea_import_enabled?
+                    = link_to new_import_gitea_url, class: 'btn import_gitea' do
+                      = custom_icon('go_logo')
+                      Gitea
                 %div
                   - if git_import_enabled?
                     = link_to "#", class: 'btn js-toggle-button import_git' do

app/views/shared/icons/_go_logo.svg.erb

+<svg xmlns="http://www.w3.org/2000/svg" width="<%= size %>" height="<%= size %>" viewBox="0 0 16 16"><g fill-rule="evenodd" transform="translate(0 1)"><path d="m14 15.01h1v-8.02c0-3.862-3.134-6.991-7-6.991-3.858 0-7 3.13-7 6.991v8.02h1v-8.02c0-3.306 2.691-5.991 6-5.991 3.314 0 6 2.682 6 5.991v8.02m-10.52-13.354c-.366-.402-.894-.655-1.48-.655-1.105 0-2 .895-2 2 0 .868.552 1.606 1.325 1.883.102-.321.226-.631.371-.93-.403-.129-.695-.507-.695-.953 0-.552.448-1 1-1 .306 0 .58.138.764.354.222-.25.461-.483.717-.699m9.04-.002c.366-.401.893-.653 1.479-.653 1.105 0 2 .895 2 2 0 .867-.552 1.606-1.324 1.883-.101-.321-.225-.632-.37-.931.403-.129.694-.507.694-.952 0-.552-.448-1-1-1-.305 0-.579.137-.762.353-.222-.25-.461-.483-.717-.699"/><path d="m5.726 7.04h1.557v.124c0 .283-.033.534-.1.752-.065.202-.175.391-.33.566-.35.394-.795.591-1.335.591-.527 0-.979-.19-1.355-.571-.376-.382-.564-.841-.564-1.377 0-.547.191-1.01.574-1.391.382-.382.848-.574 1.396-.574.295 0 .57.06.825.181.244.12.484.316.72.586l-.405.388c-.309-.412-.686-.618-1.13-.618-.399 0-.733.138-1 .413-.27.27-.405.609-.405 1.015 0 .42.151.766.452 1.037.282.252.587.378.915.378.28 0 .531-.094.754-.283.223-.19.347-.418.373-.683h-.94v-.535m2.884.061c0-.53.194-.986.583-1.367.387-.381.853-.571 1.396-.571.537 0 .998.192 1.382.576.386.384.578.845.578 1.384 0 .542-.194 1-.581 1.379-.389.379-.858.569-1.408.569-.487 0-.923-.168-1.311-.505-.426-.373-.64-.861-.64-1.465m.574.007c0 .417.14.759.42 1.028.278.269.6.403.964.403.395 0 .729-.137 1-.41.272-.277.408-.613.408-1.01 0-.402-.134-.739-.403-1.01-.267-.273-.597-.41-.991-.41-.392 0-.723.137-.993.41-.27.27-.405.604-.405 1m-.184 3.918c.525.026.812.063.812.063.271.025.324-.096.116-.273 0 0-.775-.813-1.933-.813-1.159 0-1.923.813-1.923.813-.211.174-.153.3.12.273 0 0 .286-.037.81-.063v.477c0 .268.224.5.5.5.268 0 .5-.223.5-.498v-.252.25c0 .268.224.5.5.5.268 0 .5-.223.5-.498v-.478m-1-1.023c.552 0 1-.224 1-.5 0-.276-.448-.5-1-.5-.552 0-1 .224-1 .5 0 .276.448.5 1 .5"/></g></svg>

changelogs/unreleased/22348-gitea-importer.yml

+---
+title: New Gitea importer
+merge_request: 8116
+author:

config/initializers/1_settings.rb

@@ -213,7 +213,7 @@ Settings.gitlab.default_projects_features['builds']             = true if Settin
 Settings.gitlab.default_projects_features['container_registry'] = true if Settings.gitlab.default_projects_features['container_registry'].nil?
 Settings.gitlab.default_projects_features['visibility_level']   = Settings.send(:verify_constant, Gitlab::VisibilityLevel, Settings.gitlab.default_projects_features['visibility_level'], Gitlab::VisibilityLevel::PRIVATE)
 Settings.gitlab['domain_whitelist'] ||= []
-Settings.gitlab['import_sources'] ||= %w[github bitbucket gitlab google_code fogbugz git gitlab_project]
+Settings.gitlab['import_sources'] ||= %w[github bitbucket gitlab google_code fogbugz git gitlab_project gitea]
 Settings.gitlab['trusted_proxies'] ||= []
 Settings.gitlab['no_todos_messages'] ||= YAML.load_file(Rails.root.join('config', 'no_todos_messages.yml'))
 

config/routes/import.rb

@@ -6,6 +6,12 @@ namespace :import do
     get :jobs
   end
 
+  resource :gitea, only: [:create, :new], controller: :gitea do
+    post :personal_access_token
+    get :status
+    get :jobs
+  end
+
   resource :gitlab, only: [:create], controller: :gitlab do
     get :status
     get :callback

lib/gitlab/current_settings.rb

@@ -45,7 +45,7 @@ module Gitlab
         default_project_visibility: Settings.gitlab.default_projects_features['visibility_level'],
         default_snippet_visibility: Settings.gitlab.default_projects_features['visibility_level'],
         domain_whitelist: Settings.gitlab['domain_whitelist'],
-        import_sources: %w[github bitbucket gitlab google_code fogbugz git gitlab_project],
+        import_sources: %w[gitea github bitbucket gitlab google_code fogbugz git gitlab_project],
         shared_runners_enabled: Settings.gitlab_ci['shared_runners_enabled'],
         max_artifacts_size: Settings.artifacts['max_size'],
         require_two_factor_authentication: false,

lib/gitlab/github_import/base_formatter.rb

@@ -15,6 +15,10 @@ module Gitlab
         end
       end
 
+      def url
+        raw_data.url || ''
+      end
+
       private
 
       def gitlab_user_id(github_id)

lib/gitlab/github_import/client.rb

@@ -4,10 +4,12 @@ module Gitlab
       GITHUB_SAFE_REMAINING_REQUESTS = 100
       GITHUB_SAFE_SLEEP_TIME = 500
 
-      attr_reader :access_token
+      attr_reader :access_token, :host, :api_version
 
-      def initialize(access_token)
+      def initialize(access_token, host: nil, api_version: 'v3')
         @access_token = access_token
+        @host = host.to_s.sub(%r{/+\z}, '')
+        @api_version = api_version
 
         if access_token
           ::Octokit.auto_paginate = false
@@ -17,7 +19,7 @@ module Gitlab
       def api
         @api ||= ::Octokit::Client.new(
           access_token: access_token,
-          api_endpoint: github_options[:site],
+          api_endpoint: api_endpoint,
           # If there is no config, we're connecting to github.com and we
           # should verify ssl.
           connection_options: {
@@ -64,6 +66,14 @@ module Gitlab
 
       private
 
+      def api_endpoint
+        if host.present? && api_version.present?
+          "#{host}/api/#{api_version}"
+        else
+          github_options[:site]
+        end
+      end
+
       def config
         Gitlab.config.omniauth.providers.find { |provider| provider.name == "github" }
       end

lib/gitlab/github_import/importer.rb

@@ -3,7 +3,7 @@ module Gitlab
     class Importer
       include Gitlab::ShellAdapter
 
-      attr_reader :client, :errors, :project, :repo, :repo_url
+      attr_reader :errors, :project, :repo, :repo_url
 
       def initialize(project)
         @project  = project
@@ -11,12 +11,27 @@ module Gitlab
         @repo_url = project.import_url
         @errors   = []
         @labels   = {}
+      end
+
+      def client
+        return @client if defined?(@client)
+        unless credentials
+          raise Projects::ImportService::Error,
+                "Unable to find project import data credentials for project ID: #{@project.id}"
+        end
 
-        if credentials
-          @client = Client.new(credentials[:user])
-        else
-          raise Projects::ImportService::Error, "Unable to find project import data credentials for project ID: #{@project.id}"
+        opts = {}
+        # Gitea plan to be GitHub compliant
+        if project.gitea_import?
+          uri = URI.parse(project.import_url)
+          host = "#{uri.scheme}://#{uri.host}:#{uri.port}#{uri.path}".sub(%r{/?[\w-]+/[\w-]+\.git\z}, '')
+          opts = {
+            host: host,
+            api_version: 'v1'
+          }
         end
+
+        @client = Client.new(credentials[:user], opts)
       end
 
       def execute
@@ -35,7 +50,13 @@ module Gitlab
         import_comments(:issues)
         import_comments(:pull_requests)
         import_wiki
-        import_releases
+
+        # Gitea doesn't have a Release API yet
+        # See https://github.com/go-gitea/gitea/issues/330
+        unless project.gitea_import?
+          import_releases
+        end
+
         handle_errors
 
         true
@@ -44,7 +65,9 @@ module Gitlab
       private
 
       def credentials
-        @credentials ||= project.import_data.credentials if project.import_data
+        return @credentials if defined?(@credentials)
+
+        @credentials = project.import_data ? project.import_data.credentials : nil
       end
 
       def handle_errors
@@ -60,9 +83,10 @@ module Gitlab
         fetch_resources(:labels, repo, per_page: 100) do |labels|
           labels.each do |raw|
             begin
-              LabelFormatter.new(project, raw).create!
+              gh_label = LabelFormatter.new(project, raw)
+              gh_label.create!
             rescue => e
-              errors << { type: :label, url: Gitlab::UrlSanitizer.sanitize(raw.url), errors: e.message }
+              errors << { type: :label, url: Gitlab::UrlSanitizer.sanitize(gh_label.url), errors: e.message }
             end
           end
         end
@@ -74,9 +98,10 @@ module Gitlab
         fetch_resources(:milestones, repo, state: :all, per_page: 100) do |milestones|
           milestones.each do |raw|
             begin
-              MilestoneFormatter.new(project, raw).create!
+              gh_milestone = MilestoneFormatter.new(project, raw)
+              gh_milestone.create!
             rescue => e
-              errors << { type: :milestone, url: Gitlab::UrlSanitizer.sanitize(raw.url), errors: e.message }
+              errors << { type: :milestone, url: Gitlab::UrlSanitizer.sanitize(gh_milestone.url), errors: e.message }
             end
           end
         end
@@ -97,7 +122,7 @@ module Gitlab
 
               apply_labels(issuable, raw)
             rescue => e
-              errors << { type: :issue, url: Gitlab::UrlSanitizer.sanitize(raw.url), errors: e.message }
+              errors << { type: :issue, url: Gitlab::UrlSanitizer.sanitize(gh_issue.url), errors: e.message }
             end
           end
         end
@@ -106,18 +131,23 @@ module Gitlab
       def import_pull_requests
         fetch_resources(:pull_requests, repo, state: :all, sort: :created, direction: :asc, per_page: 100) do |pull_requests|
           pull_requests.each do |raw|
-            pull_request = PullRequestFormatter.new(project, raw)
-            next unless pull_request.valid?
+            gh_pull_request = PullRequestFormatter.new(project, raw)
+            next unless gh_pull_request.valid?
 
             begin
-              restore_source_branch(pull_request) unless pull_request.source_branch_exists?
-              restore_target_branch(pull_request) unless pull_request.target_branch_exists?
+              restore_source_branch(gh_pull_request) unless gh_pull_request.source_branch_exists?
+              restore_target_branch(gh_pull_request) unless gh_pull_request.target_branch_exists?
+
+              merge_request = gh_pull_request.create!
 
-              pull_request.create!
+              # Gitea doesn't return PR in the Issue API endpoint, so labels must be assigned at this stage
+              if project.gitea_import?
+                apply_labels(merge_request, raw)
+              end
             rescue => e
-              errors << { type: :pull_request, url: Gitlab::UrlSanitizer.sanitize(pull_request.url), errors: e.message }
+              errors << { type: :pull_request, url: Gitlab::UrlSanitizer.sanitize(gh_pull_request.url), errors: e.message }
             ensure
-              clean_up_restored_branches(pull_request)
+              clean_up_restored_branches(gh_pull_request)
             end
           end
         end
@@ -233,7 +263,7 @@ module Gitlab
               gh_release = ReleaseFormatter.new(project, raw)
               gh_release.create! if gh_release.valid?
             rescue => e
-              errors << { type: :release, url: Gitlab::UrlSanitizer.sanitize(raw.url), errors: e.message }
+              errors << { type: :release, url: Gitlab::UrlSanitizer.sanitize(gh_release.url), errors: e.message }
             end
           end
         end

lib/gitlab/github_import/issuable_formatter.rb

+module Gitlab
+  module GithubImport
+    class IssuableFormatter < BaseFormatter
+      def project_association
+        raise NotImplementedError
+      end
+
+      def number
+        raw_data.number
+      end
+
+      def find_condition
+        { iid: number }
+      end
+
+      private
+
+      def state
+        raw_data.state == 'closed' ? 'closed' : 'opened'
+      end
+
+      def assigned?
+        raw_data.assignee.present?
+      end
+
+      def assignee_id
+        if assigned?
+          gitlab_user_id(raw_data.assignee.id)
+        end
+      end
+
+      def author
+        raw_data.user.login
+      end
+
+      def author_id
+        gitlab_author_id || project.creator_id
+      end
+
+      def body
+        raw_data.body || ""
+      end
+
+      def description
+        if gitlab_author_id
+          body
+        else
+          formatter.author_line(author) + body
+        end
+      end
+
+      def milestone
+        if raw_data.milestone.present?
+          milestone = MilestoneFormatter.new(project, raw_data.milestone)
+          project.milestones.find_by(milestone.find_condition)
+        end
+      end
+    end
+  end
+end

lib/gitlab/github_import/issue_formatter.rb

 module Gitlab
   module GithubImport
-    class IssueFormatter < BaseFormatter
+    class IssueFormatter < IssuableFormatter
       def attributes
         {
           iid: number,
@@ -24,59 +24,9 @@ module Gitlab
         :issues
       end
 
-      def find_condition
-        { iid: number }
-      end
-
-      def number
-        raw_data.number
-      end
-
       def pull_request?
         raw_data.pull_request.present?
       end
-
-      private
-
-      def assigned?
-        raw_data.assignee.present?
-      end
-
-      def assignee_id
-        if assigned?
-          gitlab_user_id(raw_data.assignee.id)
-        end
-      end
-
-      def author
-        raw_data.user.login
-      end
-
-      def author_id
-        gitlab_author_id || project.creator_id
-      end
-
-      def body
-        raw_data.body || ""
-      end
-
-      def description
-        if gitlab_author_id
-          body
-        else
-          formatter.author_line(author) + body
-        end
-      end
-
-      def milestone
-        if raw_data.milestone.present?
-          project.milestones.find_by(iid: raw_data.milestone.number)
-        end
-      end
-
-      def state
-        raw_data.state == 'closed' ? 'closed' : 'opened'
-      end
     end
   end
 end

lib/gitlab/github_import/milestone_formatter.rb

@@ -3,7 +3,7 @@ module Gitlab
     class MilestoneFormatter < BaseFormatter
       def attributes
         {
-          iid: raw_data.number,
+          iid: number,
           project: project,
           title: raw_data.title,
           description: raw_data.description,
@@ -19,7 +19,15 @@ module Gitlab
       end
 
       def find_condition
-        { iid: raw_data.number }
+        { iid: number }
+      end
+
+      def number
+        if project.gitea_import?
+          raw_data.id
+        else
+          raw_data.number
+        end
       end
 
       private

lib/gitlab/github_import/project_creator.rb

 module Gitlab
   module GithubImport
     class ProjectCreator
-      attr_reader :repo, :name, :namespace, :current_user, :session_data
+      attr_reader :repo, :name, :namespace, :current_user, :session_data, :type
 
-      def initialize(repo, name, namespace, current_user, session_data)
+      def initialize(repo, name, namespace, current_user, session_data, type: 'github')
         @repo = repo
         @name = name
         @namespace = namespace
         @current_user = current_user
         @session_data = session_data
+        @type = type
       end
 
       def execute
@@ -19,7 +20,7 @@ module Gitlab
           description: repo.description,
           namespace_id: namespace.id,
           visibility_level: visibility_level,
-          import_type: "github",
+          import_type: type,
           import_source: repo.full_name,
           import_url: import_url,
           skip_wiki: skip_wiki
@@ -29,7 +30,7 @@ module Gitlab
       private
 
       def import_url
-        repo.clone_url.sub('https://', "https://#{session_data[:github_access_token]}@")
+        repo.clone_url.sub('://', "://#{session_data[:github_access_token]}@")
       end
 
       def visibility_level

lib/gitlab/github_import/pull_request_formatter.rb

 module Gitlab
   module GithubImport
-    class PullRequestFormatter < BaseFormatter
+    class PullRequestFormatter < IssuableFormatter
       delegate :exists?, :project, :ref, :repo, :sha, to: :source_branch, prefix: true
       delegate :exists?, :project, :ref, :repo, :sha, to: :target_branch, prefix: true
 
@@ -28,14 +28,6 @@ module Gitlab
         :merge_requests
       end
 
-      def find_condition
-        { iid: number }
-      end
-
-      def number
-        raw_data.number
-      end
-
       def valid?
         source_branch.valid? && target_branch.valid?
       end
@@ -60,57 +52,15 @@ module Gitlab
         end
       end
 
-      def url
-        raw_data.url
-      end
-
       private
 
-      def assigned?
-        raw_data.assignee.present?
-      end
-
-      def assignee_id
-        if assigned?
-          gitlab_user_id(raw_data.assignee.id)
-        end
-      end
-
-      def author
-        raw_data.user.login
-      end
-
-      def author_id
-        gitlab_author_id || project.creator_id
-      end
-
-      def body
-        raw_data.body || ""
-      end
-
-      def description
-        if gitlab_author_id
-          body
+      def state
+        if raw_data.state == 'closed' && raw_data.merged_at.present?
+          'merged'
         else
-          formatter.author_line(author) + body
+          super
         end
       end
-
-      def milestone
-        if raw_data.milestone.present?
-          project.milestones.find_by(iid: raw_data.milestone.number)
-        end
-      end
-
-      def state
-        @state ||= if raw_data.state == 'closed' && raw_data.merged_at.present?
-                     'merged'
-                   elsif raw_data.state == 'closed'
-                     'closed'
-                   else
-                     'opened'
-                   end
-      end
     end
   end
 end

lib/gitlab/import_sources.rb

@@ -7,21 +7,38 @@ module Gitlab
   module ImportSources
     extend CurrentSettings
 
+    ImportSource = Struct.new(:name, :title, :importer)
+
+    ImportTable = [
+      ImportSource.new('github',         'GitHub',        Gitlab::GithubImport::Importer),
+      ImportSource.new('bitbucket',      'Bitbucket',     Gitlab::BitbucketImport::Importer),
+      ImportSource.new('gitlab',         'GitLab.com',    Gitlab::GitlabImport::Importer),
+      ImportSource.new('google_code',    'Google Code',   Gitlab::GoogleCodeImport::Importer),
+      ImportSource.new('fogbugz',        'FogBugz',       Gitlab::FogbugzImport::Importer),
+      ImportSource.new('git',            'Repo by URL',   nil),
+      ImportSource.new('gitlab_project', 'GitLab export', Gitlab::ImportExport::Importer),
+      ImportSource.new('gitea',          'Gitea',         Gitlab::GithubImport::Importer)
+    ].freeze
+
     class << self
+      def options
+        @options ||= Hash[ImportTable.map { |importer| [importer.title, importer.name] }]
+      end
+
       def values
-        options.values
+        @values ||= ImportTable.map(&:name)
       end
 
-      def options
-        {
-          'GitHub'        => 'github',
-          'Bitbucket'     => 'bitbucket',
-          'GitLab.com'    => 'gitlab',
-          'Google Code'   => 'google_code',
-          'FogBugz'       => 'fogbugz',
-          'Repo by URL'   => 'git',
-          'GitLab export' => 'gitlab_project'
-        }
+      def importer_names
+        @importer_names ||= ImportTable.select(&:importer).map(&:name)
+      end
+
+      def importer(name)
+        ImportTable.find { |import_source| import_source.name == name }.importer
+      end
+
+      def title(name)
+        options.key(name)
       end
     end
   end

spec/controllers/import/gitea_controller_spec.rb

+require 'spec_helper'
+
+describe Import::GiteaController do
+  include ImportSpecHelper
+
+  let(:provider) { :gitea }
+  let(:host_url) { 'https://try.gitea.io' }
+
+  include_context 'a GitHub-ish import controller'
+
+  def assign_host_url
+    session[:gitea_host_url] = host_url
+  end
+
+  describe "GET new" do
+    it_behaves_like 'a GitHub-ish import controller: GET new' do
+      before do
+        assign_host_url
+      end
+    end
+  end
+
+  describe "POST personal_access_token" do
+    it_behaves_like 'a GitHub-ish import controller: POST personal_access_token'
+  end
+
+  describe "GET status" do
+    it_behaves_like 'a GitHub-ish import controller: GET status' do
+      before do
+        assign_host_url
+      end
+      let(:extra_assign_expectations) { { gitea_host_url: host_url } }
+    end
+  end
+
+  describe 'POST create' do
+    it_behaves_like 'a GitHub-ish import controller: POST create' do
+      before do
+        assign_host_url
+      end
+    end
+  end
+end

spec/controllers/import/github_controller_spec.rb

@@ -3,34 +3,18 @@ require 'spec_helper'
 describe Import::GithubController do
   include ImportSpecHelper
 
-  let(:user) { create(:user) }
-  let(:token) { "asdasd12345" }
-  let(:access_params) { { github_access_token: token } }
+  let(:provider) { :github }
 
-  def assign_session_token
-    session[:github_access_token] = token
-  end
-
-  before do
-    sign_in(user)
-    allow(controller).to receive(:github_import_enabled?).and_return(true)
-  end
+  include_context 'a GitHub-ish import controller'
 
   describe "GET new" do
-    it "redirects to GitHub for an access token if logged in with GitHub" do
-      allow(controller).to receive(:logged_in_with_github?).and_return(true)
-      expect(controller).to receive(:go_to_github_for_permissions)
+    it_behaves_like 'a GitHub-ish import controller: GET new'
 
-      get :new
-    end
-
-    it "redirects to status if we already have a token" do
-      assign_session_token
-      allow(controller).to receive(:logged_in_with_github?).and_return(false)
+    it "redirects to GitHub for an access token if logged in with GitHub" do
+      allow(controller).to receive(:logged_in_with_provider?).and_return(true)
+      expect(controller).to receive(:go_to_provider_for_permissions)
 
       get :new
-
-      expect(controller).to redirect_to(status_import_github_url)
     end
   end
 
@@ -51,196 +35,14 @@ describe Import::GithubController do
   end
 
   describe "POST personal_access_token" do
-    it "updates access token" do
-      token = "asdfasdf9876"
-
-      allow_any_instance_of(Gitlab::GithubImport::Client).
-        to receive(:user).and_return(true)
-
-      post :personal_access_token, personal_access_token: token
-
-      expect(session[:github_access_token]).to eq(token)
-      expect(controller).to redirect_to(status_import_github_url)
-    end
+    it_behaves_like 'a GitHub-ish import controller: POST personal_access_token'
   end
 
   describe "GET status" do
-    before do
-      @repo = OpenStruct.new(login: 'vim', full_name: 'asd/vim')
-      @org = OpenStruct.new(login: 'company')
-      @org_repo = OpenStruct.new(login: 'company', full_name: 'company/repo')
-      assign_session_token
-    end
-
-    it "assigns variables" do
-      @project = create(:project, import_type: 'github', creator_id: user.id)
-      stub_client(repos: [@repo, @org_repo], orgs: [@org], org_repos: [@org_repo])
-
-      get :status
-
-      expect(assigns(:already_added_projects)).to eq([@project])
-      expect(assigns(:repos)).to eq([@repo, @org_repo])
-    end
-
-    it "does not show already added project" do
-      @project = create(:project, import_type: 'github', creator_id: user.id, import_source: 'asd/vim')
-      stub_client(repos: [@repo], orgs: [])
-
-      get :status
-
-      expect(assigns(:already_added_projects)).to eq([@project])
-      expect(assigns(:repos)).to eq([])
-    end
-
-    it "handles an invalid access token" do
-      allow_any_instance_of(Gitlab::GithubImport::Client).
-        to receive(:repos).and_raise(Octokit::Unauthorized)
-
-      get :status
-
-      expect(session[:github_access_token]).to eq(nil)
-      expect(controller).to redirect_to(new_import_github_url)
-      expect(flash[:alert]).to eq('Access denied to your GitHub account.')
-    end
+    it_behaves_like 'a GitHub-ish import controller: GET status'
   end
 
   describe "POST create" do
-    let(:github_username) { user.username }
-    let(:github_user) { OpenStruct.new(login: github_username) }
-    let(:github_repo) do
-      OpenStruct.new(
-        name: 'vim',
-        full_name: "#{github_username}/vim",
-        owner: OpenStruct.new(login: github_username)
-      )
-    end
-
-    before do
-      stub_client(user: github_user, repo: github_repo)
-      assign_session_token
-    end
-
-    context "when the repository owner is the GitHub user" do
-      context "when the GitHub user and GitLab user's usernames match" do
-        it "takes the current user's namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator).
-            to receive(:new).with(github_repo, github_repo.name, user.namespace, user, access_params).
-              and_return(double(execute: true))
-
-          post :create, format: :js
-        end
-      end
-
-      context "when the GitHub user and GitLab user's usernames don't match" do
-        let(:github_username) { "someone_else" }
-
-        it "takes the current user's namespace" do
-          expect(Gitlab::GithubImport::ProjectCreator).
-            to receive(:new).with(github_repo, github_repo.name, user.namespace, user, access_params).
-              and_return(double(execute: true))
-
-          post :create, format: :js
-        end
-      end
-    end
-
-    context "when the repository owner is not the GitHub user" do
-      let(:other_username) { "someone_else" }
-
-      before do
-        github_repo.owner = OpenStruct.new(login: other_username)
-        assign_session_token
-      end
-
-      context "when a namespace with the GitHub user's username already exists" do
-        let!(:existing_namespace) { create(:namespace, name: other_username, owner: user) }
-
-        context "when the namespace is owned by the GitLab user" do
-          it "takes the existing namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).with(github_repo, github_repo.name, existing_namespace, user, access_params).
-                and_return(double(execute: true))
-
-            post :create, format: :js
-          end
-        end
-
-        context "when the namespace is not owned by the GitLab user" do
-          before do
-            existing_namespace.owner = create(:user)
-            existing_namespace.save
-          end
-
-          it "creates a project using user's namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).with(github_repo, github_repo.name, user.namespace, user, access_params).
-                and_return(double(execute: true))
-
-            post :create, format: :js
-          end
-        end
-      end
-
-      context "when a namespace with the GitHub user's username doesn't exist" do
-        context "when current user can create namespaces" do
-          it "creates the namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).and_return(double(execute: true))
-
-            expect { post :create, target_namespace: github_repo.name, format: :js }.to change(Namespace, :count).by(1)
-          end
-
-          it "takes the new namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).with(github_repo, github_repo.name, an_instance_of(Group), user, access_params).
-              and_return(double(execute: true))
-
-            post :create, target_namespace: github_repo.name, format: :js
-          end
-        end
-
-        context "when current user can't create namespaces" do
-          before do
-            user.update_attribute(:can_create_group, false)
-          end
-
-          it "doesn't create the namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).and_return(double(execute: true))
-
-            expect { post :create, format: :js }.not_to change(Namespace, :count)
-          end
-
-          it "takes the current user's namespace" do
-            expect(Gitlab::GithubImport::ProjectCreator).
-              to receive(:new).with(github_repo, github_repo.name, user.namespace, user, access_params).
-              and_return(double(execute: true))
-
-            post :create, format: :js
-          end
-        end
-      end
-
-      context 'user has chosen a namespace and name for the project' do
-        let(:test_namespace) { create(:namespace, name: 'test_namespace', owner: user) }
-        let(:test_name) { 'test_name' }
-
-        it 'takes the selected namespace and name' do
-          expect(Gitlab::GithubImport::ProjectCreator).
-            to receive(:new).with(github_repo, test_name, test_namespace, user, access_params).
-              and_return(double(execute: true))
-
-          post :create, { target_namespace: test_namespace.name, new_name: test_name, format: :js }
-        end
-
-        it 'takes the selected name and default namespace' do
-          expect(Gitlab::GithubImport::ProjectCreator).
-            to receive(:new).with(github_repo, test_name, user.namespace, user, access_params).
-              and_return(double(execute: true))
-
-          post :create, { new_name: test_name, format: :js }
-        end
-      end
-    end
+    it_behaves_like 'a GitHub-ish import controller: POST create'
   end
 end

spec/helpers/import_helper_spec.rb

@@ -25,24 +25,37 @@ describe ImportHelper do
     end
   end
 
-  describe '#github_project_link' do
-    context 'when provider does not specify a custom URL' do
-      it 'uses default GitHub URL' do
-        allow(Gitlab.config.omniauth).to receive(:providers).
+  describe '#provider_project_link' do
+    context 'when provider is "github"' do
+      context 'when provider does not specify a custom URL' do
+        it 'uses default GitHub URL' do
+          allow(Gitlab.config.omniauth).to receive(:providers).
           and_return([Settingslogic.new('name' => 'github')])
 
-        expect(helper.github_project_link('octocat/Hello-World')).
+          expect(helper.provider_project_link('github', 'octocat/Hello-World')).
           to include('href="https://github.com/octocat/Hello-World"')
+        end
       end
-    end
 
-    context 'when provider specify a custom URL' do
-      it 'uses custom URL' do
-        allow(Gitlab.config.omniauth).to receive(:providers).
+      context 'when provider specify a custom URL' do
+        it 'uses custom URL' do
+          allow(Gitlab.config.omniauth).to receive(:providers).
           and_return([Settingslogic.new('name' => 'github', 'url' => 'https://github.company.com')])
 
-        expect(helper.github_project_link('octocat/Hello-World')).
+          expect(helper.provider_project_link('github', 'octocat/Hello-World')).
           to include('href="https://github.company.com/octocat/Hello-World"')
+        end
+      end
+    end
+
+    context 'when provider is "gitea"' do
+      before do
+        assign(:gitea_host_url, 'https://try.gitea.io/')
+      end
+
+      it 'uses given host' do
+        expect(helper.provider_project_link('gitea', 'octocat/Hello-World')).
+        to include('href="https://try.gitea.io/octocat/Hello-World"')
       end
     end
   end

spec/lib/gitlab/github_import/client_spec.rb

@@ -45,20 +45,46 @@ describe Gitlab::GithubImport::Client, lib: true do
     end
   end
 
-  context 'when provider does not specity an API endpoint' do
-    it 'uses GitHub root API endpoint' do
-      expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+  describe '#api_endpoint' do
+    context 'when provider does not specity an API endpoint' do
+      it 'uses GitHub root API endpoint' do
+        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+      end
     end
-  end
 
-  context 'when provider specify a custom API endpoint' do
-    before do
-      github_provider['args']['client_options']['site'] = 'https://github.company.com/'
+    context 'when provider specify a custom API endpoint' do
+      before do
+        github_provider['args']['client_options']['site'] = 'https://github.company.com/'
+      end
+
+      it 'uses the custom API endpoint' do
+        expect(OmniAuth::Strategies::GitHub).not_to receive(:default_options)
+        expect(client.api.api_endpoint).to eq 'https://github.company.com/'
+      end
+    end
+
+    context 'when given a host' do
+      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/') }
+
+      it 'builds a endpoint with the given host and the default API version' do
+        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+      end
     end
 
-    it 'uses the custom API endpoint' do
-      expect(OmniAuth::Strategies::GitHub).not_to receive(:default_options)
-      expect(client.api.api_endpoint).to eq 'https://github.company.com/'
+    context 'when given an API version' do
+      subject(:client) { described_class.new(token, api_version: 'v3') }
+
+      it 'does not use the API version without a host' do
+        expect(client.api.api_endpoint).to eq 'https://api.github.com/'
+      end
+    end
+
+    context 'when given a host and version' do
+      subject(:client) { described_class.new(token, host: 'https://try.gitea.io/', api_version: 'v3') }
+
+      it 'builds a endpoint with the given options' do
+        expect(client.api.api_endpoint).to eq 'https://try.gitea.io/api/v3/'
+      end
     end
   end
 

spec/lib/gitlab/github_import/issuable_formatter_spec.rb

+require 'spec_helper'
+
+describe Gitlab::GithubImport::IssuableFormatter, lib: true do
+  let(:raw_data) do
+    double(number: 42)
+  end
+  let(:project) { double(import_type: 'github') }
+  let(:issuable_formatter) { described_class.new(project, raw_data) }
+
+  describe '#project_association' do
+    it { expect { issuable_formatter.project_association }.to raise_error(NotImplementedError) }
+  end
+
+  describe '#number' do
+    it { expect(issuable_formatter.number).to eq(42) }
+  end
+
+  describe '#find_condition' do
+    it { expect(issuable_formatter.find_condition).to eq({ iid: 42 }) }
+  end
+end

spec/lib/gitlab/github_import/issue_formatter_spec.rb

@@ -23,9 +23,9 @@ describe Gitlab::GithubImport::IssueFormatter, lib: true do
     }
   end
 
-  subject(:issue) { described_class.new(project, raw_data)}
+  subject(:issue) { described_class.new(project, raw_data) }
 
-  describe '#attributes' do
+  shared_examples 'Gitlab::GithubImport::IssueFormatter#attributes' do
     context 'when issue is open' do
       let(:raw_data) { double(base_data.merge(state: 'open')) }
 
@@ -83,7 +83,7 @@ describe Gitlab::GithubImport::IssueFormatter, lib: true do
     end
 
     context 'when it has a milestone' do
-      let(:milestone) { double(number: 45) }
+      let(:milestone) { double(id: 42, number: 42) }
       let(:raw_data) { double(base_data.merge(milestone: milestone)) }
 
       it 'returns nil when milestone does not exist' do
@@ -91,7 +91,7 @@ describe Gitlab::GithubImport::IssueFormatter, lib: true do
       end
 
       it 'returns milestone when it exists' do
-        milestone = create(:milestone, project: project, iid: 45)
+        milestone = create(:milestone, project: project, iid: 42)
 
         expect(issue.attributes.fetch(:milestone)).to eq milestone
       end
@@ -118,6 +118,28 @@ describe Gitlab::GithubImport::IssueFormatter, lib: true do
     end
   end
 
+  shared_examples 'Gitlab::GithubImport::IssueFormatter#number' do
+    let(:raw_data) { double(base_data.merge(number: 1347)) }
+
+    it 'returns issue number' do
+      expect(issue.number).to eq 1347
+    end
+  end
+
+  context 'when importing a GitHub project' do
+    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#attributes'
+    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#number'
+  end
+
+  context 'when importing a Gitea project' do
+    before do
+      project.update(import_type: 'gitea')
+    end
+
+    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#attributes'
+    it_behaves_like 'Gitlab::GithubImport::IssueFormatter#number'
+  end
+
   describe '#has_comments?' do
     context 'when number of comments is greater than zero' do
       let(:raw_data) { double(base_data.merge(comments: 1)) }
@@ -136,14 +158,6 @@ describe Gitlab::GithubImport::IssueFormatter, lib: true do
     end
   end
 
-  describe '#number' do
-    let(:raw_data) { double(base_data.merge(number: 1347)) }
-
-    it 'returns pull request number' do
-      expect(issue.number).to eq 1347
-    end
-  end
-
   describe '#pull_request?' do
     context 'when mention a pull request' do
       let(:raw_data) { double(base_data.merge(pull_request: double)) }

spec/lib/gitlab/github_import/milestone_formatter_spec.rb

@@ -6,7 +6,6 @@ describe Gitlab::GithubImport::MilestoneFormatter, lib: true do
   let(:updated_at) { DateTime.strptime('2011-01-27T19:01:12Z') }
   let(:base_data) do
     {
-      number: 1347,
       state: 'open',
       title: '1.0',
       description: 'Version 1.0',
@@ -16,12 +15,15 @@ describe Gitlab::GithubImport::MilestoneFormatter, lib: true do
       closed_at: nil
     }
   end
+  let(:iid_attr) { :number }
 
-  subject(:formatter) { described_class.new(project, raw_data)}
+  subject(:formatter) { described_class.new(project, raw_data) }
+
+  shared_examples 'Gitlab::GithubImport::MilestoneFormatter#attributes' do
+    let(:data) { base_data.merge(iid_attr => 1347) }
 
-  describe '#attributes' do
     context 'when milestone is open' do
-      let(:raw_data) { double(base_data.merge(state: 'open')) }
+      let(:raw_data) { double(data.merge(state: 'open')) }
 
       it 'returns formatted attributes' do
         expected = {
@@ -40,7 +42,7 @@ describe Gitlab::GithubImport::MilestoneFormatter, lib: true do
     end
 
     context 'when milestone is closed' do
-      let(:raw_data) { double(base_data.merge(state: 'closed')) }
+      let(:raw_data) { double(data.merge(state: 'closed')) }
 
       it 'returns formatted attributes' do
         expected = {
@@ -60,7 +62,7 @@ describe Gitlab::GithubImport::MilestoneFormatter, lib: true do
 
     context 'when milestone has a due date' do
       let(:due_date) { DateTime.strptime('2011-01-28T19:01:12Z') }
-      let(:raw_data) { double(base_data.merge(due_on: due_date)) }
+      let(:raw_data) { double(data.merge(due_on: due_date)) }
 
       it 'returns formatted attributes' do
         expected = {
@@ -78,4 +80,17 @@ describe Gitlab::GithubImport::MilestoneFormatter, lib: true do
       end
     end
   end
+
+  context 'when importing a GitHub project' do
+    it_behaves_like 'Gitlab::GithubImport::MilestoneFormatter#attributes'
+  end
+
+  context 'when importing a Gitea project' do
+    let(:iid_attr) { :id }
+    before do
+      project.update(import_type: 'gitea')
+    end
+
+    it_behaves_like 'Gitlab::GithubImport::MilestoneFormatter#attributes'
+  end
 end

spec/lib/gitlab/github_import/pull_request_formatter_spec.rb

@@ -32,9 +32,9 @@ describe Gitlab::GithubImport::PullRequestFormatter, lib: true do
     }
   end
 
-  subject(:pull_request) { described_class.new(project, raw_data)}
+  subject(:pull_request) { described_class.new(project, raw_data) }
 
-  describe '#attributes' do
+  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#attributes' do
     context 'when pull request is open' do
       let(:raw_data) { double(base_data.merge(state: 'open')) }
 
@@ -149,7 +149,7 @@ describe Gitlab::GithubImport::PullRequestFormatter, lib: true do
     end
 
     context 'when it has a milestone' do
-      let(:milestone) { double(number: 45) }
+      let(:milestone) { double(id: 42, number: 42) }
       let(:raw_data) { double(base_data.merge(milestone: milestone)) }
 
       it 'returns nil when milestone does not exist' do
@@ -157,22 +157,22 @@ describe Gitlab::GithubImport::PullRequestFormatter, lib: true do
       end
 
       it 'returns milestone when it exists' do
-        milestone = create(:milestone, project: project, iid: 45)
+        milestone = create(:milestone, project: project, iid: 42)
 
         expect(pull_request.attributes.fetch(:milestone)).to eq milestone
       end
     end
   end
 
-  describe '#number' do
-    let(:raw_data) { double(base_data.merge(number: 1347)) }
+  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#number' do
+    let(:raw_data) { double(base_data) }
 
     it 'returns pull request number' do
       expect(pull_request.number).to eq 1347
     end
   end
 
-  describe '#source_branch_name' do
+  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name' do
     context 'when source branch exists' do
       let(:raw_data) { double(base_data) }
 
@@ -190,7 +190,7 @@ describe Gitlab::GithubImport::PullRequestFormatter, lib: true do
     end
   end
 
-  describe '#target_branch_name' do
+  shared_examples 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name' do
     context 'when source branch exists' do
       let(:raw_data) { double(base_data) }
 
@@ -208,6 +208,24 @@ describe Gitlab::GithubImport::PullRequestFormatter, lib: true do
     end
   end
 
+  context 'when importing a GitHub project' do
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#attributes'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#number'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name'
+  end
+
+  context 'when importing a Gitea project' do
+    before do
+      project.update(import_type: 'gitea')
+    end
+
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#attributes'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#number'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#source_branch_name'
+    it_behaves_like 'Gitlab::GithubImport::PullRequestFormatter#target_branch_name'
+  end
+
   describe '#valid?' do
     context 'when source, and target repos are not a fork' do
       let(:raw_data) { double(base_data) }

spec/lib/gitlab/import_sources_spec.rb

+require 'spec_helper'
+
+describe Gitlab::ImportSources do
+  describe '.options' do
+    it 'returns a hash' do
+      expected =
+        {
+          'GitHub'        => 'github',
+          'Bitbucket'     => 'bitbucket',
+          'GitLab.com'    => 'gitlab',
+          'Google Code'   => 'google_code',
+          'FogBugz'       => 'fogbugz',
+          'Repo by URL'   => 'git',
+          'GitLab export' => 'gitlab_project',
+          'Gitea'         => 'gitea'
+        }
+
+      expect(described_class.options).to eq(expected)
+    end
+  end
+
+  describe '.values' do
+    it 'returns an array' do
+      expected =
+        [
+          'github',
+          'bitbucket',
+          'gitlab',
+          'google_code',
+          'fogbugz',
+          'git',
+          'gitlab_project',
+          'gitea'
+        ]
+
+      expect(described_class.values).to eq(expected)
+    end
+  end
+
+  describe '.importer_names' do
+    it 'returns an array of importer names' do
+      expected =
+        [
+          'github',
+          'bitbucket',
+          'gitlab',
+          'google_code',
+          'fogbugz',
+          'gitlab_project',
+          'gitea'
+        ]
+
+      expect(described_class.importer_names).to eq(expected)
+    end
+  end
+
+  describe '.importer' do
+    import_sources = {
+      'github' => Gitlab::GithubImport::Importer,
+      'bitbucket' => Gitlab::BitbucketImport::Importer,
+      'gitlab' => Gitlab::GitlabImport::Importer,
+      'google_code' => Gitlab::GoogleCodeImport::Importer,
+      'fogbugz' => Gitlab::FogbugzImport::Importer,
+      'git' => nil,
+      'gitlab_project' => Gitlab::ImportExport::Importer,
+      'gitea' => Gitlab::GithubImport::Importer
+    }
+
+    import_sources.each do |name, klass|
+      it "returns #{klass} when given #{name}" do
+        expect(described_class.importer(name)).to eq(klass)
+      end
+    end
+  end
+
+  describe '.title' do
+    import_sources = {
+      'github' => 'GitHub',
+      'bitbucket' => 'Bitbucket',
+      'gitlab' => 'GitLab.com',
+      'google_code' => 'Google Code',
+      'fogbugz' => 'FogBugz',
+      'git' => 'Repo by URL',
+      'gitlab_project' => 'GitLab export',
+      'gitea' => 'Gitea'
+    }
+
+    import_sources.each do |name, title|
+      it "returns #{title} when given #{name}" do
+        expect(described_class.title(name)).to eq(title)
+      end
+    end
+  end
+end

spec/models/project_spec.rb

@@ -1458,6 +1458,18 @@ describe Project, models: true do
     end
   end
 
+  describe '#gitlab_project_import?' do
+    subject(:project) { build(:project, import_type: 'gitlab_project') }
+
+    it { expect(project.gitlab_project_import?).to be true }
+  end
+
+  describe '#gitea_import?' do
+    subject(:project) { build(:project, import_type: 'gitea') }
+
+    it { expect(project.gitea_import?).to be true }
+  end
+
   describe '#lfs_enabled?' do
     let(:project) { create(:project) }
 

spec/routing/import_routing_spec.rb

+require 'spec_helper'
+
+# Shared examples for a resource inside a Project
+#
+# By default it tests all the default REST actions: index, create, new, edit,
+# show, update, and destroy. You can remove actions by customizing the
+# `actions` variable.
+#
+# It also expects a `controller` variable to be available which defines both
+# the path to the resource as well as the controller name.
+#
+# Examples
+#
+#   # Default behavior
+#   it_behaves_like 'RESTful project resources' do
+#     let(:controller) { 'issues' }
+#   end
+#
+#   # Customizing actions
+#   it_behaves_like 'RESTful project resources' do
+#     let(:actions)    { [:index] }
+#     let(:controller) { 'issues' }
+#   end
+shared_examples 'importer routing' do
+  let(:except_actions) { [] }
+
+  it 'to #create' do
+    expect(post("/import/#{provider}")).to route_to("import/#{provider}#create") unless except_actions.include?(:create)
+  end
+
+  it 'to #new' do
+    expect(get("/import/#{provider}/new")).to route_to("import/#{provider}#new") unless except_actions.include?(:new)
+  end
+
+  it 'to #status' do
+    expect(get("/import/#{provider}/status")).to route_to("import/#{provider}#status") unless except_actions.include?(:status)
+  end
+
+  it 'to #callback' do
+    expect(get("/import/#{provider}/callback")).to route_to("import/#{provider}#callback") unless except_actions.include?(:callback)
+  end
+
+  it 'to #jobs' do
+    expect(get("/import/#{provider}/jobs")).to route_to("import/#{provider}#jobs") unless except_actions.include?(:jobs)
+  end
+end
+
+# personal_access_token_import_github POST     /import/github/personal_access_token(.:format)                                                import/github#personal_access_token
+#                status_import_github GET      /import/github/status(.:format)                                                               import/github#status
+#              callback_import_github GET      /import/github/callback(.:format)                                                             import/github#callback
+#                  jobs_import_github GET      /import/github/jobs(.:format)                                                                 import/github#jobs
+#                       import_github POST     /import/github(.:format)                                                                      import/github#create
+#                   new_import_github GET      /import/github/new(.:format)                                                                  import/github#new
+describe Import::GithubController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:provider) { 'github' }
+  end
+
+  it 'to #personal_access_token' do
+    expect(post('/import/github/personal_access_token')).to route_to('import/github#personal_access_token')
+  end
+end
+
+# personal_access_token_import_gitea POST     /import/gitea/personal_access_token(.:format)                                                 import/gitea#personal_access_token
+#                status_import_gitea GET      /import/gitea/status(.:format)                                                                import/gitea#status
+#                  jobs_import_gitea GET      /import/gitea/jobs(.:format)                                                                  import/gitea#jobs
+#                       import_gitea POST     /import/gitea(.:format)                                                                       import/gitea#create
+#                   new_import_gitea GET      /import/gitea/new(.:format)                                                                   import/gitea#new
+describe Import::GiteaController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:except_actions) { [:callback] }
+    let(:provider) { 'gitea' }
+  end
+
+  it 'to #personal_access_token' do
+    expect(post('/import/gitea/personal_access_token')).to route_to('import/gitea#personal_access_token')
+  end
+end
+
+#   status_import_gitlab GET      /import/gitlab/status(.:format)                                                               import/gitlab#status
+# callback_import_gitlab GET      /import/gitlab/callback(.:format)                                                             import/gitlab#callback
+#     jobs_import_gitlab GET      /import/gitlab/jobs(.:format)                                                                 import/gitlab#jobs
+#          import_gitlab POST     /import/gitlab(.:format)                                                                      import/gitlab#create
+describe Import::GitlabController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:except_actions) { [:new] }
+    let(:provider) { 'gitlab' }
+  end
+end
+
+#   status_import_bitbucket GET      /import/bitbucket/status(.:format)                                                            import/bitbucket#status
+# callback_import_bitbucket GET      /import/bitbucket/callback(.:format)                                                          import/bitbucket#callback
+#     jobs_import_bitbucket GET      /import/bitbucket/jobs(.:format)                                                              import/bitbucket#jobs
+#          import_bitbucket POST     /import/bitbucket(.:format)                                                                   import/bitbucket#create
+describe Import::BitbucketController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:except_actions) { [:new] }
+    let(:provider) { 'bitbucket' }
+  end
+end
+
+#          status_import_google_code GET      /import/google_code/status(.:format)                                                          import/google_code#status
+#        callback_import_google_code POST     /import/google_code/callback(.:format)                                                        import/google_code#callback
+#            jobs_import_google_code GET      /import/google_code/jobs(.:format)                                                            import/google_code#jobs
+#    new_user_map_import_google_code GET      /import/google_code/user_map(.:format)                                                        import/google_code#new_user_map
+# create_user_map_import_google_code POST     /import/google_code/user_map(.:format)                                                        import/google_code#create_user_map
+#                 import_google_code POST     /import/google_code(.:format)                                                                 import/google_code#create
+#             new_import_google_code GET      /import/google_code/new(.:format)                                                             import/google_code#new
+describe Import::GoogleCodeController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:except_actions) { [:callback] }
+    let(:provider) { 'google_code' }
+  end
+
+  it 'to #callback' do
+    expect(post("/import/google_code/callback")).to route_to("import/google_code#callback")
+  end
+
+  it 'to #new_user_map' do
+    expect(get('/import/google_code/user_map')).to route_to('import/google_code#new_user_map')
+  end
+
+  it 'to #create_user_map' do
+    expect(post('/import/google_code/user_map')).to route_to('import/google_code#create_user_map')
+  end
+end
+
+#          status_import_fogbugz GET      /import/fogbugz/status(.:format)                                                              import/fogbugz#status
+#        callback_import_fogbugz POST     /import/fogbugz/callback(.:format)                                                            import/fogbugz#callback
+#            jobs_import_fogbugz GET      /import/fogbugz/jobs(.:format)                                                                import/fogbugz#jobs
+#    new_user_map_import_fogbugz GET      /import/fogbugz/user_map(.:format)                                                            import/fogbugz#new_user_map
+# create_user_map_import_fogbugz POST     /import/fogbugz/user_map(.:format)                                                            import/fogbugz#create_user_map
+#                 import_fogbugz POST     /import/fogbugz(.:format)                                                                     import/fogbugz#create
+#             new_import_fogbugz GET      /import/fogbugz/new(.:format)                                                                 import/fogbugz#new
+describe Import::FogbugzController, 'routing' do
+  it_behaves_like 'importer routing' do
+    let(:except_actions) { [:callback] }
+    let(:provider) { 'fogbugz' }
+  end
+
+  it 'to #callback' do
+    expect(post("/import/fogbugz/callback")).to route_to("import/fogbugz#callback")
+  end
+
+  it 'to #new_user_map' do
+    expect(get('/import/fogbugz/user_map')).to route_to('import/fogbugz#new_user_map')
+  end
+
+  it 'to #create_user_map' do
+    expect(post('/import/fogbugz/user_map')).to route_to('import/fogbugz#create_user_map')
+  end
+end
+
+#     import_gitlab_project POST     /import/gitlab_project(.:format)                                                              import/gitlab_projects#create
+#                           POST     /import/gitlab_project(.:format)                                                              import/gitlab_projects#create
+# new_import_gitlab_project GET      /import/gitlab_project/new(.:format)                                                          import/gitlab_projects#new
+describe Import::GitlabProjectsController, 'routing' do
+  it 'to #create' do
+    expect(post('/import/gitlab_project')).to route_to('import/gitlab_projects#create')
+  end
+
+  it 'to #new' do
+    expect(get('/import/gitlab_project/new')).to route_to('import/gitlab_projects#new')
+  end
+end

spec/support/controllers/githubish_import_controller_shared_context.rb

+shared_context 'a GitHub-ish import controller' do
+  let(:user) { create(:user) }
+  let(:token) { "asdasd12345" }
+  let(:access_params) { { github_access_token: token } }
+
+  before do
+    sign_in(user)
+    allow(controller).to receive(:"#{provider}_import_enabled?").and_return(true)
+  end
+end

spec/support/controllers/githubish_import_controller_shared_examples.rb

+# Specifications for behavior common to all objects with an email attribute.
+# Takes a list of email-format attributes and requires:
+# - subject { "the object with a attribute= setter"  }
+#   Note: You have access to `email_value` which is the email address value
+#         being currently tested).
+
+def assign_session_token(provider)
+  session[:"#{provider}_access_token"] = 'asdasd12345'
+end
+
+shared_examples 'a GitHub-ish import controller: POST personal_access_token' do
+  let(:status_import_url) { public_send("status_import_#{provider}_url") }
+
+  it "updates access token" do
+    token = 'asdfasdf9876'
+
+    allow_any_instance_of(Gitlab::GithubImport::Client).
+      to receive(:user).and_return(true)
+
+    post :personal_access_token, personal_access_token: token
+
+    expect(session[:"#{provider}_access_token"]).to eq(token)
+    expect(controller).to redirect_to(status_import_url)
+  end
+end
+
+shared_examples 'a GitHub-ish import controller: GET new' do
+  let(:status_import_url) { public_send("status_import_#{provider}_url") }
+
+  it "redirects to status if we already have a token" do
+    assign_session_token(provider)
+    allow(controller).to receive(:logged_in_with_provider?).and_return(false)
+
+    get :new
+
+    expect(controller).to redirect_to(status_import_url)
+  end
+
+  it "renders the :new page if no token is present in session" do
+    get :new
+
+    expect(response).to render_template(:new)
+  end
+end
+
+shared_examples 'a GitHub-ish import controller: GET status' do
+  let(:new_import_url) { public_send("new_import_#{provider}_url") }
+  let(:user) { create(:user) }
+  let(:repo) { OpenStruct.new(login: 'vim', full_name: 'asd/vim') }
+  let(:org) { OpenStruct.new(login: 'company') }
+  let(:org_repo) { OpenStruct.new(login: 'company', full_name: 'company/repo') }
+  let(:extra_assign_expectations) { {} }
+
+  before do
+    assign_session_token(provider)
+  end
+
+  it "assigns variables" do
+    project = create(:empty_project, import_type: provider, creator_id: user.id)
+    stub_client(repos: [repo, org_repo], orgs: [org], org_repos: [org_repo])
+
+    get :status
+
+    expect(assigns(:already_added_projects)).to eq([project])
+    expect(assigns(:repos)).to eq([repo, org_repo])
+    extra_assign_expectations.each do |key, value|
+      expect(assigns(key)).to eq(value)
+    end
+  end
+
+  it "does not show already added project" do
+    project = create(:empty_project, import_type: provider, creator_id: user.id, import_source: 'asd/vim')
+    stub_client(repos: [repo], orgs: [])
+
+    get :status
+
+    expect(assigns(:already_added_projects)).to eq([project])
+    expect(assigns(:repos)).to eq([])
+  end
+
+  it "handles an invalid access token" do
+    allow_any_instance_of(Gitlab::GithubImport::Client).
+      to receive(:repos).and_raise(Octokit::Unauthorized)
+
+    get :status
+
+    expect(session[:"#{provider}_access_token"]).to be_nil
+    expect(controller).to redirect_to(new_import_url)
+    expect(flash[:alert]).to eq("Access denied to your #{Gitlab::ImportSources.title(provider.to_s)} account.")
+  end
+end
+
+shared_examples 'a GitHub-ish import controller: POST create' do
+  let(:user) { create(:user) }
+  let(:provider_username) { user.username }
+  let(:provider_user) { OpenStruct.new(login: provider_username) }
+  let(:provider_repo) do
+    OpenStruct.new(
+      name: 'vim',
+      full_name: "#{provider_username}/vim",
+      owner: OpenStruct.new(login: provider_username)
+    )
+  end
+
+  before do
+    stub_client(user: provider_user, repo: provider_repo)
+    assign_session_token(provider)
+  end
+
+  context "when the repository owner is the provider user" do
+    context "when the provider user and GitLab user's usernames match" do
+      it "takes the current user's namespace" do
+        expect(Gitlab::GithubImport::ProjectCreator).
+          to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider).
+            and_return(double(execute: true))
+
+        post :create, format: :js
+      end
+    end
+
+    context "when the provider user and GitLab user's usernames don't match" do
+      let(:provider_username) { "someone_else" }
+
+      it "takes the current user's namespace" do
+        expect(Gitlab::GithubImport::ProjectCreator).
+          to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider).
+            and_return(double(execute: true))
+
+        post :create, format: :js
+      end
+    end
+  end
+
+  context "when the repository owner is not the provider user" do
+    let(:other_username) { "someone_else" }
+
+    before do
+      provider_repo.owner = OpenStruct.new(login: other_username)
+      assign_session_token(provider)
+    end
+
+    context "when a namespace with the provider user's username already exists" do
+      let!(:existing_namespace) { create(:namespace, name: other_username, owner: user) }
+
+      context "when the namespace is owned by the GitLab user" do
+        it "takes the existing namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).with(provider_repo, provider_repo.name, existing_namespace, user, access_params, type: provider).
+              and_return(double(execute: true))
+
+          post :create, format: :js
+        end
+      end
+
+      context "when the namespace is not owned by the GitLab user" do
+        before do
+          existing_namespace.owner = create(:user)
+          existing_namespace.save
+        end
+
+        it "creates a project using user's namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider).
+              and_return(double(execute: true))
+
+          post :create, format: :js
+        end
+      end
+    end
+
+    context "when a namespace with the provider user's username doesn't exist" do
+      context "when current user can create namespaces" do
+        it "creates the namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).and_return(double(execute: true))
+
+          expect { post :create, target_namespace: provider_repo.name, format: :js }.to change(Namespace, :count).by(1)
+        end
+
+        it "takes the new namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).with(provider_repo, provider_repo.name, an_instance_of(Group), user, access_params, type: provider).
+            and_return(double(execute: true))
+
+          post :create, target_namespace: provider_repo.name, format: :js
+        end
+      end
+
+      context "when current user can't create namespaces" do
+        before do
+          user.update_attribute(:can_create_group, false)
+        end
+
+        it "doesn't create the namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).and_return(double(execute: true))
+
+          expect { post :create, format: :js }.not_to change(Namespace, :count)
+        end
+
+        it "takes the current user's namespace" do
+          expect(Gitlab::GithubImport::ProjectCreator).
+            to receive(:new).with(provider_repo, provider_repo.name, user.namespace, user, access_params, type: provider).
+            and_return(double(execute: true))
+
+          post :create, format: :js
+        end
+      end
+    end
+
+    context 'user has chosen a namespace and name for the project' do
+      let(:test_namespace) { create(:namespace, name: 'test_namespace', owner: user) }
+      let(:test_name) { 'test_name' }
+
+      it 'takes the selected namespace and name' do
+        expect(Gitlab::GithubImport::ProjectCreator).
+          to receive(:new).with(provider_repo, test_name, test_namespace, user, access_params, type: provider).
+            and_return(double(execute: true))
+
+        post :create, { target_namespace: test_namespace.name, new_name: test_name, format: :js }
+      end
+
+      it 'takes the selected name and default namespace' do
+        expect(Gitlab::GithubImport::ProjectCreator).
+          to receive(:new).with(provider_repo, test_name, user.namespace, user, access_params, type: provider).
+            and_return(double(execute: true))
+
+        post :create, { new_name: test_name, format: :js }
+      end
+    end
+  end
+end