ci: Set CRYSTALBALL on 2-hourly scheduled pipelines

Signed-off-by: Rémy Coutable <remy@rymai.me>

.gitlab-ci.yml

@@ -38,6 +38,10 @@ workflow:
       when: never
     # For merge requests, create a pipeline.
     - if: '$CI_MERGE_REQUEST_IID'
+    # For the 2-hourly scheduled pipelines, we set specific variables
+    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH && $CI_PIPELINE_SOURCE == "schedule" && $FREQUENCY == "2-hourly"'
+      variables:
+        CRYSTALBALL: "true"
     # For `$CI_DEFAULT_BRANCH` branch, create a pipeline (this includes on schedules, pushes, merges, etc.).
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
     # For tags, create a pipeline.

.gitlab/ci/rails.gitlab-ci.yml

@@ -29,7 +29,6 @@
   variables:
     RUBY_GC_MALLOC_LIMIT: 67108864
     RUBY_GC_MALLOC_LIMIT_MAX: 134217728
-    CRYSTALBALL: "true"
     RECORD_DEPRECATIONS: "true"
   needs: ["setup-test-env", "retrieve-tests-metadata", "compile-test-assets", "detect-tests"]
   script:

spec/crystalball_env.rb

@@ -6,7 +6,7 @@ module CrystalballEnv
   extend self
 
   def start!
-    return unless ENV['CRYSTALBALL'] && ENV['CI_PIPELINE_SOURCE'] == 'schedule' && ENV['FREQUENCY'] == '2-hourly'
+    return unless ENV['CRYSTALBALL']
 
     require 'crystalball'
     require_relative '../tooling/lib/tooling/crystalball/coverage_lines_execution_detector'