Creates Feature Flag for job log

Updates frontend code and specs to allow for the new
feature flag

app/assets/javascripts/jobs/components/job_app.vue

@@ -12,7 +12,6 @@ import createStore from '../store';
 import EmptyState from './empty_state.vue';
 import EnvironmentsBlock from './environments_block.vue';
 import ErasedBlock from './erased_block.vue';
-import Log from './job_log.vue';
 import LogTopBar from './job_log_controllers.vue';
 import StuckBlock from './stuck_block.vue';
 import UnmetPrerequisitesBlock from './unmet_prerequisites_block.vue';
@@ -30,7 +29,10 @@ export default {
     EnvironmentsBlock,
     ErasedBlock,
     Icon,
-    Log,
+    Log: () =>
+      gon && gon.features && gon.features.jobLogJson
+        ? import('./job_log_json.vue')
+        : import('./job_log.vue'),
     LogTopBar,
     StuckBlock,
     UnmetPrerequisitesBlock,

app/assets/javascripts/jobs/components/job_log_json.vue

+<script>
+export default {
+  name: 'JobLogJSON',
+};
+</script>
+<template>
+  <pre>
+    {{ __('This feature is in development. Please disable the `job_log_json` feature flag') }}
+  </pre>
+</template>

app/controllers/projects/jobs_controller.rb

@@ -11,6 +11,9 @@ class Projects::JobsController < Projects::ApplicationController
   before_action :authorize_erase_build!, only: [:erase]
   before_action :authorize_use_build_terminal!, only: [:terminal, :terminal_websocket_authorize]
   before_action :verify_api_request!, only: :terminal_websocket_authorize
+  before_action only: [:trace] do
+    push_frontend_feature_flag(:job_log_json)
+  end
   layout 'project'
@@ -64,6 +67,14 @@ class Projects::JobsController < Projects::ApplicationController
   # rubocop: enable CodeReuse/ActiveRecord
   def trace
+    if Feature.enabled?(:job_log_json, @project)
+      json_trace
+    else
+      html_trace
+    end
+  end
+
+  def html_trace
     build.trace.read do |stream|
       respond_to do |format|
         format.json do
@@ -84,6 +95,10 @@ class Projects::JobsController < Projects::ApplicationController
     end
   end
+  def json_trace
+    # will be implemented with https://gitlab.com/gitlab-org/gitlab-ce/issues/66454
+  end
+
   def retry
     return respond_422 unless @build.retryable?

locale/gitlab.pot

@@ -11760,6 +11760,9 @@ msgstr ""
 msgid "This domain is not verified. You will need to verify ownership before access is enabled."
 msgstr ""
+msgid "This feature is in development. Please disable the `job_log_json` feature flag"
+msgstr ""
+
 msgid "This feature requires local storage to be enabled"
 msgstr ""

spec/controllers/projects/jobs_controller_spec.rb

@@ -12,6 +12,7 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
   before do
     stub_feature_flags(ci_enable_live_trace: true)
+    stub_feature_flags(job_log_json: false)
     stub_not_protect_default_branch
   end

spec/features/projects/jobs/user_browses_job_spec.rb

@@ -10,6 +10,8 @@ describe 'User browses a job', :js do
   let!(:build) { create(:ci_build, :success, :trace_artifact, :coverage, pipeline: pipeline) }
   before do
+    stub_feature_flags(job_log_json: false)
+
     project.add_maintainer(user)
     project.enable_ci

spec/features/projects/jobs_spec.rb

@@ -20,6 +20,7 @@ describe 'Jobs', :clean_gitlab_redis_shared_state do
   before do
     project.add_role(user, user_access_level)
     sign_in(user)
+    stub_feature_flags(job_log_json: false)
   end
   describe "GET /:project/jobs" do

spec/features/security/project/internal_access_spec.rb

@@ -7,6 +7,10 @@ describe "Internal Project Access" do
   set(:project) { create(:project, :internal, :repository) }
+  before do
+    stub_feature_flags(job_log_json: false)
+  end
+
   describe "Project should be internal" do
     describe '#internal?' do
       subject { project.internal? }

spec/features/security/project/private_access_spec.rb

@@ -7,6 +7,10 @@ describe "Private Project Access" do
   set(:project) { create(:project, :private, :repository, public_builds: false) }
+  before do
+    stub_feature_flags(job_log_json: false)
+  end
+
   describe "Project should be private" do
     describe '#private?' do
       subject { project.private? }

spec/features/security/project/public_access_spec.rb

@@ -7,6 +7,10 @@ describe "Public Project Access" do
   set(:project) { create(:project, :public, :repository) }
+  before do
+    stub_feature_flags(job_log_json: false)
+  end
+
   describe "Project should be public" do
     describe '#public?' do
       subject { project.public? }