Remove Koding integration and documentation

This integration no longer works and does not appear to be supported.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/39697

13 files changed, 4 insertions, 158 deletions

diff --git a/app/assets/images/koding-logo.svg b/app/assets/images/koding-logo.svg
deleted file mode 100644
index ad89d684d94..00000000000
--- a/app/assets/images/koding-logo.svg
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 14">
-    <g fill="#d6d7d9">
-        <path d="M8.7 0L5.3.3l3.2 6.8-3.2 6.6 3.5.3L12 6.9z"/>
-        <ellipse cx="1.7" cy="11.1" rx="1.7" ry="1.7"/>
-        <ellipse cx="1.7" cy="5.6" rx="1.7" ry="1.7"/>
-    </g>
-</svg>
\ No newline at end of file
diff --git a/app/controllers/koding_controller.rb b/app/controllers/koding_controller.rb
deleted file mode 100644
index 72aa9d4f17f..00000000000
--- a/app/controllers/koding_controller.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# frozen_string_literal: true
-
-class KodingController < ApplicationController
-  before_action :check_integration!
-  layout 'koding'
-
-  def index
-    path = File.join(Rails.root, 'doc/user/project/koding.md')
-    @markdown = File.read(path)
-  end
-
-  private
-
-  def check_integration!
-    render_404 unless Gitlab::CurrentSettings.koding_enabled?
-  end
-end
diff --git a/app/helpers/application_settings_helper.rb b/app/helpers/application_settings_helper.rb
index d6753e46165..0c9f69b6714 100644
--- a/app/helpers/application_settings_helper.rb
+++ b/app/helpers/application_settings_helper.rb
@@ -7,7 +7,6 @@ module ApplicationSettingsHelper
             :gravatar_enabled?,
             :password_authentication_enabled_for_web?,
             :akismet_enabled?,
-            :koding_enabled?,
             to: :'Gitlab::CurrentSettings.current_application_settings'
 
   def user_oauth_applications?
@@ -155,8 +154,6 @@ module ApplicationSettingsHelper
       :housekeeping_incremental_repack_period,
       :html_emails_enabled,
       :import_sources,
-      :koding_enabled,
-      :koding_url,
       :max_artifacts_size,
       :max_attachment_size,
       :max_pages_size,
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 0016f89db5c..d9713f9c9b0 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -388,22 +388,6 @@ module ProjectsHelper
     end
   end
 
-  def koding_project_url(project = nil, branch = nil, sha = nil)
-    if project
-      import_path = "/Home/Stacks/import"
-
-      repo = project.full_path
-      branch ||= project.default_branch
-      sha ||= project.commit.short_id
-
-      path = "#{import_path}?repo=#{repo}&branch=#{branch}&sha=#{sha}"
-
-      return URI.join(Gitlab::CurrentSettings.koding_url, path).to_s
-    end
-
-    Gitlab::CurrentSettings.koding_url
-  end
-
   def project_wiki_path_with_version(proj, page, version, is_newest)
     url_params = is_newest ? {} : { version_id: version }
     project_wiki_path(proj, page, url_params)
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 23131af1b7d..b66ec0ffab6 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -33,6 +33,8 @@ class ApplicationSetting < ActiveRecord::Base
   ignore_column :circuitbreaker_storage_timeout
   ignore_column :circuitbreaker_access_retries
   ignore_column :circuitbreaker_check_interval
+  ignore_column :koding_url
+  ignore_column :koding_enabled
 
   cache_markdown_field :sign_in_text
   cache_markdown_field :help_page_text
@@ -100,10 +102,6 @@ class ApplicationSetting < ActiveRecord::Base
             presence: true,
             if: :unique_ips_limit_enabled
 
-  validates :koding_url,
-            presence: true,
-            if: :koding_enabled
-
   validates :plantuml_url,
             presence: true,
             if: :plantuml_enabled
@@ -252,8 +250,6 @@ class ApplicationSetting < ActiveRecord::Base
       housekeeping_gc_period: 200,
       housekeeping_incremental_repack_period: 10,
       import_sources: Settings.gitlab['import_sources'],
-      koding_enabled: false,
-      koding_url: nil,
       max_artifacts_size: Settings.artifacts['max_size'],
       max_attachment_size: Settings.gitlab['max_attachment_size'],
       mirror_available: true,
diff --git a/app/models/repository.rb b/app/models/repository.rb
index a3a3ce179fc..cfc3399a64d 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -36,7 +36,7 @@ class Repository
   # For example, for entry `:commit_count` there's a method called `commit_count` which
   # stores its data in the `commit_count` cache key.
   CACHED_METHODS = %i(size commit_count rendered_readme contribution_guide
-                      changelog license_blob license_key gitignore koding_yml
+                      changelog license_blob license_key gitignore
                       gitlab_ci_yml branch_names tag_names branch_count
                       tag_count avatar exists? root_ref has_visible_content?
                       issue_template_names merge_request_template_names xcode_project?).freeze
@@ -53,7 +53,6 @@ class Repository
     license: %i(license_blob license_key license),
     contributing: :contribution_guide,
     gitignore: :gitignore,
-    koding: :koding_yml,
     gitlab_ci: :gitlab_ci_yml,
     avatar: :avatar,
     issue_template: :issue_template_names,
@@ -619,11 +618,6 @@ class Repository
   end
   cache_method :gitignore
 
-  def koding_yml
-    file_on_head(:koding)
-  end
-  cache_method :koding_yml
-
   def gitlab_ci_yml
     file_on_head(:gitlab_ci)
   end
diff --git a/app/presenters/project_presenter.rb b/app/presenters/project_presenter.rb
index d2434d96fd7..79cd3606aec 100644
--- a/app/presenters/project_presenter.rb
+++ b/app/presenters/project_presenter.rb
@@ -36,8 +36,7 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
       contribution_guide_anchor_data,
       autodevops_anchor_data(show_auto_devops_callout: show_auto_devops_callout),
       kubernetes_cluster_anchor_data,
-      gitlab_ci_anchor_data,
-      koding_anchor_data
+      gitlab_ci_anchor_data
     ].compact.reject { |item| item.enabled }
   end
 
@@ -125,43 +124,6 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
     add_special_file_path(file_name: 'README.md')
   end
 
-  def add_koding_stack_path
-    project_new_blob_path(
-      project,
-      default_branch || 'master',
-      file_name:      '.koding.yml',
-      commit_message: "Add Koding stack script",
-      content: <<-CONTENT.strip_heredoc
-        provider:
-          aws:
-            access_key: '${var.aws_access_key}'
-            secret_key: '${var.aws_secret_key}'
-        resource:
-          aws_instance:
-            #{project.path}-vm:
-              instance_type: t2.nano
-              user_data: |-
-
-                # Created by GitLab UI for :>
-
-                echo _KD_NOTIFY_@Installing Base packages...@
-
-                apt-get update -y
-                apt-get install git -y
-
-                echo _KD_NOTIFY_@Cloning #{project.name}...@
-
-                export KODING_USER=${var.koding_user_username}
-                export REPO_URL=#{root_url}${var.koding_queryString_repo}.git
-                export BRANCH=${var.koding_queryString_branch}
-
-                sudo -i -u $KODING_USER git clone $REPO_URL -b $BRANCH
-
-                echo _KD_NOTIFY_@#{project.name} cloned.@
-      CONTENT
-    )
-  end
-
   def license_short_name
     license = repository.license
     license&.nickname || license&.name || 'LICENSE'
@@ -310,14 +272,6 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
     end
   end
 
-  def koding_anchor_data
-    if current_user && can_current_user_push_code? && koding_enabled? && repository.koding_yml.blank?
-      AnchorData.new(false,
-                     _('Set up Koding'),
-                     add_koding_stack_path)
-    end
-  end
-
   def tags_to_show
     project.tag_list.take(MAX_TAGS_TO_SHOW) # rubocop: disable CodeReuse/ActiveRecord
   end
@@ -363,8 +317,4 @@ class ProjectPresenter < Gitlab::View::Presenter::Delegated
       branch_name:    branch_name
     )
   end
-
-  def koding_enabled?
-    Gitlab::CurrentSettings.koding_enabled?
-  end
 end
diff --git a/app/views/admin/application_settings/_koding.html.haml b/app/views/admin/application_settings/_koding.html.haml
deleted file mode 100644
index 8b635b08abd..00000000000
--- a/app/views/admin/application_settings/_koding.html.haml
+++ /dev/null
@@ -1,22 +0,0 @@
-= form_for @application_setting, url: admin_application_settings_path(anchor: 'js-koding-settings'), html: { class: 'fieldset-form' } do |f|
-  = form_errors(@application_setting)
-
-  %fieldset
-    .form-group
-      .form-check
-        = f.check_box :koding_enabled, class: 'form-check-input'
-        = f.label :koding_enabled, class: 'form-check-label' do
-          Enable Koding
-      .form-text.text-muted
-        Koding integration has been deprecated since GitLab 10.0. If you disable your Koding integration, you will not be able to enable it again.
-    .form-group
-      = f.label :koding_url, 'Koding URL', class: 'label-bold'
-      = f.text_field :koding_url, class: 'form-control', placeholder: 'http://gitlab.your-koding-instance.com:8090'
-      .form-text.text-muted
-        Koding has integration enabled out of the box for the
-        %strong gitlab
-        team, and you need to provide that team's URL here. Learn more in the
-        = succeed "." do
-          = link_to "Koding administration documentation", help_page_path("administration/integration/koding")
-
-  = f.submit 'Save changes', class: "btn btn-success"
diff --git a/app/views/admin/application_settings/show.html.haml b/app/views/admin/application_settings/show.html.haml
index 279db189a24..65e4723afe6 100644
--- a/app/views/admin/application_settings/show.html.haml
+++ b/app/views/admin/application_settings/show.html.haml
@@ -68,18 +68,6 @@
   .settings-content
     = render 'terms'
 
-- if koding_enabled?
-  %section.settings.as-koding.no-animate#js-koding-settings{ class: ('expanded' if expanded_by_default?) }
-    .settings-header
-      %h4
-        = _('Koding')
-      %button.btn.btn-default.js-settings-toggle{ type: 'button' }
-        = expanded_by_default? ? _('Collapse') : _('Expand')
-      %p
-        = _('Online IDE integration settings.')
-    .settings-content
-      = render 'koding'
-
 = render_if_exists 'admin/application_settings/external_authorization_service_form', expanded: expanded_by_default?
 
 %section.settings.as-terminal.no-animate#js-terminal-settings{ class: ('expanded' if expanded_by_default?) }
diff --git a/app/views/koding/index.html.haml b/app/views/koding/index.html.haml
deleted file mode 100644
index bb7f9ba7ae4..00000000000
--- a/app/views/koding/index.html.haml
+++ /dev/null
@@ -1,6 +0,0 @@
-.row-content-block.second-block.center
-  %p
-    = icon('circle', class: 'cgreen')
-    Integration is active for
-    = link_to koding_project_url, target: '_blank', rel: 'noopener noreferrer' do
-      #{Gitlab::CurrentSettings.koding_url}
diff --git a/app/views/layouts/koding.html.haml b/app/views/layouts/koding.html.haml
deleted file mode 100644
index 45ccd38f687..00000000000
--- a/app/views/layouts/koding.html.haml
+++ /dev/null
@@ -1,5 +0,0 @@
-- page_title        _("Koding")
-- page_description  _("Koding Dashboard")
-- header_title      _("Koding"), koding_path
-
-= render template: "layouts/application"
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index ced6a2a0399..61ed951dea9 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -76,8 +76,6 @@
             = render 'projects/buttons/download', project: @project, ref: @ref
           .d-none.d-sm-inline-flex
             = render 'projects/buttons/dropdown'
-          .d-none.d-sm-inline-flex
-            = render 'projects/buttons/koding'
 
         .d-none.d-sm-inline-flex
           = render 'shared/notifications/button', notification_setting: @notification_setting
diff --git a/app/views/projects/buttons/_koding.html.haml b/app/views/projects/buttons/_koding.html.haml
deleted file mode 100644
index e665ca61da8..00000000000
--- a/app/views/projects/buttons/_koding.html.haml
+++ /dev/null
@@ -1,3 +0,0 @@
-- if koding_enabled? && current_user && @repository.koding_yml && @project.can_current_user_push_code?
-  = link_to koding_project_url(@project), class: 'btn project-action-button inline', target: '_blank', rel: 'noopener noreferrer' do
-    _('Run in IDE (Koding)')