Rename plugins to file hooks

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/project.rb

@@ -1325,7 +1325,7 @@ class Project < ApplicationRecord
   end
 
   def has_active_hooks?(hooks_scope = :push_hooks)
-    hooks.hooks_for(hooks_scope).any? || SystemHook.hooks_for(hooks_scope).any? || Gitlab::Plugin.any?
+    hooks.hooks_for(hooks_scope).any? || SystemHook.hooks_for(hooks_scope).any? || Gitlab::FileHook.any?
   end
 
   def has_active_services?(hooks_scope = :push_hooks)

app/services/system_hooks_service.rb

@@ -14,7 +14,7 @@ class SystemHooksService
       hook.async_execute(data, 'system_hooks')
     end
 
-    Gitlab::Plugin.execute_all_async(data)
+    Gitlab::FileHook.execute_all_async(data)
   end
 
   private

app/views/admin/hooks/index.html.haml

@@ -11,4 +11,4 @@
 
     = render 'shared/web_hooks/index', hooks: @hooks, hook_class: @hook.class
 
-= render 'shared/plugins/index'
+= render 'shared/file_hooks/index'

app/views/shared/plugins/_index.html.haml → app/views/shared/file_hooks/_index.html.haml

-- plugins = Gitlab::Plugin.files
+- file_hooks = Gitlab::FileHook.files
 
 .row.prepend-top-default
   .col-lg-4
     %h4.prepend-top-0
-      Plugins
+      = _('File Hooks')
     %p
-      #{link_to 'Plugins', help_page_path('administration/plugins')} are similar to
-      system hooks but are executed as files instead of sending data to a URL.
+      = _('File hooks are similar to system hooks but are executed as files instead of sending data to a URL.')
+      = link_to _('For more information, see the File Hooks documentation.'), help_page_path('administration/file_hooks')
+
 
   .col-lg-8.append-bottom-default
-    - if plugins.any?
+    - if file_hooks.any?
       .card
         .card-header
-          Plugins (#{plugins.count})
+          = _('File Hooks (%{count})') % { count: file_hooks.count }
         %ul.content-list
-          - plugins.each do |file|
+          - file_hooks.each do |file|
             %li
               .monospace
                 = File.basename(file)
     - else
       .card.bg-light.text-center
-        .nothing-here-block No plugins found.
+        .nothing-here-block= _('No file hooks found.')

app/workers/all_queues.yml

@@ -158,7 +158,7 @@
 - pages
 - pages_domain_verification
 - pages_domain_ssl_renewal
-- plugin
+- file_hook
 - post_receive
 - process_commit
 - project_cache

app/workers/plugin_worker.rb → app/workers/file_hook_worker.rb

 # frozen_string_literal: true
 
-class PluginWorker
+class FileHookWorker
   include ApplicationWorker
 
   sidekiq_options retry: false
   feature_category :integrations
 
   def perform(file_name, data)
-    success, message = Gitlab::Plugin.execute(file_name, data)
+    success, message = Gitlab::FileHook.execute(file_name, data)
 
     unless success
-      Gitlab::PluginLogger.error("Plugin Error => #{file_name}: #{message}")
+      Gitlab::FileHookLogger.error("File Hook Error => #{file_name}: #{message}")
     end
 
     true

changelogs/unreleased/dz-rename-plugins.yml

+---
+title: Rename GitLab Plugins feature to GitLab File Hooks
+merge_request: 22979
+author:
+type: changed

config/sidekiq_queues.yml

@@ -76,7 +76,7 @@
   - [pages_domain_ssl_renewal, 1]
   - [object_storage_upload, 1]
   - [object_storage, 1]
-  - [plugin, 1]
+  - [file_hook, 1]
   - [pipeline_background, 1]
   - [repository_update_remote_mirror, 1]
   - [repository_remove_remote, 1]

doc/administration/file_hooks.md

+# File hooks
+
+> Introduced in GitLab 10.6.
+> Until 12.8 the feature name was Plugins.
+
+With custom file hooks, GitLab administrators can introduce custom integrations
+without modifying GitLab's source code.
+
+NOTE: **Note:**
+Instead of writing and supporting your own file hook you can make changes
+directly to the GitLab source code and contribute back upstream. This way we can
+ensure functionality is preserved across versions and covered by tests.
+
+NOTE: **Note:**
+File hooks must be configured on the filesystem of the GitLab server. Only GitLab
+server administrators will be able to complete these tasks. Explore
+[system hooks] or [webhooks] as an option if you do not have filesystem access.
+
+A file hook will run on each event so it's up to you to filter events or projects
+within a file hook code. You can have as many file hooks as you want. Each file hook will
+be triggered by GitLab asynchronously in case of an event. For a list of events
+see the [system hooks] documentation.
+
+## Setup
+
+The file hooks must be placed directly into the `plugins` directory, subdirectories
+will be ignored. There is an
+[`example` directory inside `plugins`](https://gitlab.com/gitlab-org/gitlab/tree/master/plugins/examples)
+where you can find some basic examples.
+
+Follow the steps below to set up a custom hook:
+
+1. On the GitLab server, navigate to the plugin directory.
+   For an installation from source the path is usually
+   `/home/git/gitlab/plugins/`. For Omnibus installs the path is
+   usually `/opt/gitlab/embedded/service/gitlab-rails/plugins`.
+
+    For [highly available] configurations, your hook file should exist on each
+    application server.
+
+1. Inside the `plugins` directory, create a file with a name of your choice,
+   without spaces or special characters.
+1. Make the hook file executable and make sure it's owned by the Git user.
+1. Write the code to make the file hook function as expected. That can be
+   in any language, and ensure the 'shebang' at the top properly reflects the
+   language type. For example, if the script is in Ruby the shebang will
+   probably be `#!/usr/bin/env ruby`.
+1. The data to the file hook will be provided as JSON on STDIN. It will be exactly
+   same as for [system hooks]
+
+That's it! Assuming the file hook code is properly implemented, the hook will fire
+as appropriate. The file hooks file list is updated for each event, there is no
+need to restart GitLab to apply a new file hook.
+
+If a file hook executes with non-zero exit code or GitLab fails to execute it, a
+message will be logged to:
+
+- `gitlab-rails/plugin.log` in an Omnibus installation.
+- `log/plugin.log` in a source installation.
+
+## Creating file hooks
+
+Below is an example that will only response on the event `project_create` and
+will inform the admins from the GitLab instance that a new project has been created.
+
+```ruby
+# By using the embedded ruby version we eliminate the possibility that our chosen language
+# would be unavailable from
+#!/opt/gitlab/embedded/bin/ruby
+require 'json'
+require 'mail'
+
+# The incoming variables are in JSON format so we need to parse it first.
+ARGS = JSON.parse(STDIN.read)
+
+# We only want to trigger this file hook on the event project_create
+return unless ARGS['event_name'] == 'project_create'
+
+# We will inform our admins of our gitlab instance that a new project is created
+Mail.deliver do
+  from    'info@gitlab_instance.com'
+  to      'admin@gitlab_instance.com'
+  subject "new project " + ARGS['name']
+  body    ARGS['owner_name'] + 'created project ' + ARGS['name']
+end
+```
+
+## Validation
+
+Writing your own file hook can be tricky and it's easier if you can check it
+without altering the system. A rake task is provided so that you can use it
+in a staging environment to test your file hook before using it in production.
+The rake task will use a sample data and execute each of file hook. The output
+should be enough to determine if the system sees your file hook and if it was
+executed without errors.
+
+```bash
+# Omnibus installations
+sudo gitlab-rake file_hooks:validate
+
+# Installations from source
+cd /home/git/gitlab
+bundle exec rake file_hooks:validate RAILS_ENV=production
+```
+
+Example of output:
+
+```
+Validating file hooks from /plugins directory
+* /home/git/gitlab/plugins/save_to_file.clj succeed (zero exit code)
+* /home/git/gitlab/plugins/save_to_file.rb failure (non-zero exit code)
+```
+
+[system hooks]: ../system_hooks/system_hooks.md
+[webhooks]: ../user/project/integrations/webhooks.md
+[highly available]: ./high_availability/README.md

doc/administration/plugins.md

-# GitLab Plugin system
+---
+redirect_to: 'file_hooks.md'
+---
 
-> Introduced in GitLab 10.6.
-
-With custom plugins, GitLab administrators can introduce custom integrations
-without modifying GitLab's source code.
-
-NOTE: **Note:**
-Instead of writing and supporting your own plugin you can make changes
-directly to the GitLab source code and contribute back upstream. This way we can
-ensure functionality is preserved across versions and covered by tests.
-
-NOTE: **Note:**
-Plugins must be configured on the filesystem of the GitLab server. Only GitLab
-server administrators will be able to complete these tasks. Explore
-[system hooks] or [webhooks] as an option if you do not have filesystem access.
-
-A plugin will run on each event so it's up to you to filter events or projects
-within a plugin code. You can have as many plugins as you want. Each plugin will
-be triggered by GitLab asynchronously in case of an event. For a list of events
-see the [system hooks] documentation.
-
-## Setup
-
-The plugins must be placed directly into the `plugins` directory, subdirectories
-will be ignored. There is an
-[`example` directory inside `plugins`](https://gitlab.com/gitlab-org/gitlab/tree/master/plugins/examples)
-where you can find some basic examples.
-
-Follow the steps below to set up a custom hook:
-
-1. On the GitLab server, navigate to the plugin directory.
-   For an installation from source the path is usually
-   `/home/git/gitlab/plugins/`. For Omnibus installs the path is
-   usually `/opt/gitlab/embedded/service/gitlab-rails/plugins`.
-
-    For [highly available] configurations, your hook file should exist on each
-    application server.
-
-1. Inside the `plugins` directory, create a file with a name of your choice,
-   without spaces or special characters.
-1. Make the hook file executable and make sure it's owned by the Git user.
-1. Write the code to make the plugin function as expected. That can be
-   in any language, and ensure the 'shebang' at the top properly reflects the
-   language type. For example, if the script is in Ruby the shebang will
-   probably be `#!/usr/bin/env ruby`.
-1. The data to the plugin will be provided as JSON on STDIN. It will be exactly
-   same as for [system hooks]
-
-That's it! Assuming the plugin code is properly implemented, the hook will fire
-as appropriate. The plugins file list is updated for each event, there is no
-need to restart GitLab to apply a new plugin.
-
-If a plugin executes with non-zero exit code or GitLab fails to execute it, a
-message will be logged to:
-
-- `gitlab-rails/plugin.log` in an Omnibus installation.
-- `log/plugin.log` in a source installation.
-
-## Creating plugins
-
-Below is an example that will only response on the event `project_create` and
-will inform the admins from the GitLab instance that a new project has been created.
-
-```ruby
-# By using the embedded ruby version we eliminate the possibility that our chosen language
-# would be unavailable from
-#!/opt/gitlab/embedded/bin/ruby
-require 'json'
-require 'mail'
-
-# The incoming variables are in JSON format so we need to parse it first.
-ARGS = JSON.parse(STDIN.read)
-
-# We only want to trigger this plugin on the event project_create
-return unless ARGS['event_name'] == 'project_create'
-
-# We will inform our admins of our gitlab instance that a new project is created
-Mail.deliver do
-  from    'info@gitlab_instance.com'
-  to      'admin@gitlab_instance.com'
-  subject "new project " + ARGS['name']
-  body    ARGS['owner_name'] + 'created project ' + ARGS['name']
-end
-```
-
-## Validation
-
-Writing your own plugin can be tricky and it's easier if you can check it
-without altering the system. A rake task is provided so that you can use it
-in a staging environment to test your plugin before using it in production.
-The rake task will use a sample data and execute each of plugin. The output
-should be enough to determine if the system sees your plugin and if it was
-executed without errors.
-
-```bash
-# Omnibus installations
-sudo gitlab-rake plugins:validate
-
-# Installations from source
-cd /home/git/gitlab
-bundle exec rake plugins:validate RAILS_ENV=production
-```
-
-Example of output:
-
-```
-Validating plugins from /plugins directory
-* /home/git/gitlab/plugins/save_to_file.clj succeed (zero exit code)
-* /home/git/gitlab/plugins/save_to_file.rb failure (non-zero exit code)
-```
-
-[system hooks]: ../system_hooks/system_hooks.md
-[webhooks]: ../user/project/integrations/webhooks.md
-[highly available]: ./high_availability/README.md
+This document was moved to [File Hooks](file_hooks.md), after the Plugins feature was renamed to File Hooks.

lib/gitlab/plugin.rb → lib/gitlab/file_hook.rb

 # frozen_string_literal: true
 
 module Gitlab
-  module Plugin
+  module FileHook
     def self.any?
       plugin_glob.any? { |entry| File.file?(entry) }
     end
@@ -17,7 +17,7 @@ module Gitlab
     def self.execute_all_async(data)
       args = files.map { |file| [file, data] }
 
-      PluginWorker.bulk_perform_async(args)
+      FileHookWorker.bulk_perform_async(args)
     end
 
     def self.execute(file, data)

lib/gitlab/plugin_logger.rb → lib/gitlab/file_hook_logger.rb

 # frozen_string_literal: true
 
 module Gitlab
-  class PluginLogger < Gitlab::Logger
+  class FileHookLogger < Gitlab::Logger
     def self.file_name_noext
       'plugin'
     end

lib/tasks/plugins.rake → lib/tasks/file_hooks.rake

-namespace :plugins do
+namespace :file_hooks do
   desc 'Validate existing plugins'
   task validate: :environment do
-    puts 'Validating plugins from /plugins directory'
+    puts 'Validating file hooks from /plugins directory'
 
-    Gitlab::Plugin.files.each do |file|
-      success, message = Gitlab::Plugin.execute(file, Gitlab::DataBuilder::Push::SAMPLE_DATA)
+    Gitlab::FileHook.files.each do |file|
+      success, message = Gitlab::FileHook.execute(file, Gitlab::DataBuilder::Push::SAMPLE_DATA)
 
       if success
         puts "* #{file} succeed (zero exit code)."

locale/gitlab.pot

@@ -7992,6 +7992,12 @@ msgstr ""
 msgid "Fetching licenses failed. You are not permitted to perform this action."
 msgstr ""
 
+msgid "File Hooks"
+msgstr ""
+
+msgid "File Hooks (%{count})"
+msgstr ""
+
 msgid "File added"
 msgstr ""
 
@@ -8001,6 +8007,9 @@ msgstr ""
 msgid "File deleted"
 msgstr ""
 
+msgid "File hooks are similar to system hooks but are executed as files instead of sending data to a URL."
+msgstr ""
+
 msgid "File mode changed from %{a_mode} to %{b_mode}"
 msgstr ""
 
@@ -8166,6 +8175,9 @@ msgstr ""
 msgid "For more information, please review %{link_start_tag}Jaeger's configuration doc%{link_end_tag}"
 msgstr ""
 
+msgid "For more information, see the File Hooks documentation."
+msgstr ""
+
 msgid "For more information, see the documentation on %{deactivating_usage_ping_link_start}deactivating the usage ping%{deactivating_usage_ping_link_end}."
 msgstr ""
 
@@ -12203,6 +12215,9 @@ msgstr ""
 msgid "No file chosen"
 msgstr ""
 
+msgid "No file hooks found."
+msgstr ""
+
 msgid "No file selected"
 msgstr ""
 

spec/features/admin/admin_hooks_spec.rb

@@ -28,11 +28,11 @@ describe 'Admin::Hooks' do
     end
 
     it 'renders plugins list as well' do
-      allow(Gitlab::Plugin).to receive(:files).and_return(['foo.rb', 'bar.clj'])
+      allow(Gitlab::FileHook).to receive(:files).and_return(['foo.rb', 'bar.clj'])
 
       visit admin_hooks_path
 
-      expect(page).to have_content('Plugins')
+      expect(page).to have_content('File Hooks')
       expect(page).to have_content('foo.rb')
       expect(page).to have_content('bar.clj')
     end

spec/lib/gitlab/plugin_spec.rb → spec/lib/gitlab/file_hook_spec.rb

@@ -2,11 +2,11 @@
 
 require 'spec_helper'
 
-describe Gitlab::Plugin do
-  let(:plugin) { Rails.root.join('plugins', 'test.rb') }
-  let(:tmp_file) { Tempfile.new('plugin-dump') }
+describe Gitlab::FileHook do
+  let(:file_hook) { Rails.root.join('plugins', 'test.rb') }
+  let(:tmp_file) { Tempfile.new('file_hook-dump') }
 
-  let(:plugin_source) do
+  let(:file_hook_source) do
     <<~EOS
       #!/usr/bin/env ruby
       x = STDIN.read
@@ -14,13 +14,13 @@ describe Gitlab::Plugin do
     EOS
   end
 
-  context 'with plugins present' do
+  context 'with file_hooks present' do
     before do
-      File.write(plugin, plugin_source)
+      File.write(file_hook, file_hook_source)
     end
 
     after do
-      FileUtils.rm(plugin)
+      FileUtils.rm(file_hook)
     end
 
     describe '.any?' do
@@ -30,13 +30,13 @@ describe Gitlab::Plugin do
     end
 
     describe '.files?' do
-      it 'returns a list of plugins' do
-        expect(described_class.files).to match_array([plugin.to_s])
+      it 'returns a list of file_hooks' do
+        expect(described_class.files).to match_array([file_hook.to_s])
       end
     end
   end
 
-  context 'without any plugins' do
+  context 'without any file_hooks' do
     describe '.any?' do
       it 'returns false' do
         expect(described_class.any?).to be false
@@ -52,21 +52,21 @@ describe Gitlab::Plugin do
 
   describe '.execute' do
     let(:data) { Gitlab::DataBuilder::Push::SAMPLE_DATA }
-    let(:result) { described_class.execute(plugin.to_s, data) }
+    let(:result) { described_class.execute(file_hook.to_s, data) }
     let(:success) { result.first }
     let(:message) { result.last }
 
     before do
-      File.write(plugin, plugin_source)
+      File.write(file_hook, file_hook_source)
     end
 
     after do
-      FileUtils.rm(plugin)
+      FileUtils.rm(file_hook)
     end
 
     context 'successful execution' do
       before do
-        File.chmod(0o777, plugin)
+        File.chmod(0o777, file_hook)
       end
 
       after do
@@ -76,7 +76,7 @@ describe Gitlab::Plugin do
       it { expect(success).to be true }
       it { expect(message).to be_empty }
 
-      it 'ensures plugin received data via stdin' do
+      it 'ensures file_hook received data via stdin' do
         result
 
         expect(File.read(tmp_file.path)).to eq(data.to_json)
@@ -89,7 +89,7 @@ describe Gitlab::Plugin do
     end
 
     context 'non-zero exit' do
-      let(:plugin_source) do
+      let(:file_hook_source) do
         <<~EOS
           #!/usr/bin/env ruby
           exit 1
@@ -97,7 +97,7 @@ describe Gitlab::Plugin do
       end
 
       before do
-        File.chmod(0o777, plugin)
+        File.chmod(0o777, file_hook)
       end
 
       it { expect(success).to be false }

spec/models/project_spec.rb

@@ -4745,7 +4745,7 @@ describe Project do
     end
 
     it 'returns true when a plugin exists' do
-      expect(Gitlab::Plugin).to receive(:any?).twice.and_return(true)
+      expect(Gitlab::FileHook).to receive(:any?).twice.and_return(true)
 
       expect(project.has_active_hooks?(:merge_request_events)).to be_truthy
       expect(project.has_active_hooks?).to be_truthy

spec/workers/plugin_worker_spec.rb → spec/workers/file_hook_worker_spec.rb

@@ -2,25 +2,25 @@
 
 require 'spec_helper'
 
-describe PluginWorker do
+describe FileHookWorker do
   include RepoHelpers
 
-  let(:filename) { 'my_plugin.rb' }
+  let(:filename) { 'my_file_hook.rb' }
   let(:data) { { 'event_name' => 'project_create' } }
 
   subject { described_class.new }
 
   describe '#perform' do
-    it 'executes Gitlab::Plugin with expected values' do
-      allow(Gitlab::Plugin).to receive(:execute).with(filename, data).and_return([true, ''])
+    it 'executes Gitlab::FileHook with expected values' do
+      allow(Gitlab::FileHook).to receive(:execute).with(filename, data).and_return([true, ''])
 
       expect(subject.perform(filename, data)).to be_truthy
     end
 
-    it 'logs message in case of plugin execution failure' do
-      allow(Gitlab::Plugin).to receive(:execute).with(filename, data).and_return([false, 'permission denied'])
+    it 'logs message in case of file_hook execution failure' do
+      allow(Gitlab::FileHook).to receive(:execute).with(filename, data).and_return([false, 'permission denied'])
 
-      expect(Gitlab::PluginLogger).to receive(:error)
+      expect(Gitlab::FileHookLogger).to receive(:error)
       expect(subject.perform(filename, data)).to be_truthy
     end
   end