Ensure cleanup job artifacts task does not include pipeline artifacts

See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/81022

Changelog: fixed

lib/gitlab/cleanup/orphan_job_artifact_files.rb

@@ -99,6 +99,9 @@ module Gitlab
           #                  ^--+--+- components of hashed storage project path
           cmd += %w[-mindepth 6 -maxdepth 6]
+          # Intentionally exclude pipeline artifacts which match the same path
+          cmd += %w[-not -path */pipelines/*]
+
           # Artifact directories are named on their ID
           cmd += %w[-type d]

spec/lib/gitlab/cleanup/orphan_job_artifact_files_spec.rb

@@ -34,10 +34,33 @@ RSpec.describe Gitlab::Cleanup::OrphanJobArtifactFiles do
     cleanup.run!
   end
-  it 'finds artifacts on disk' do
+  it 'finds job artifacts on disk' do
     artifact = create(:ci_job_artifact, :archive)
-    expect(cleanup).to receive(:find_artifacts).and_yield(artifact.file.path)
+    artifact_directory = artifact.file.relative_path.to_s.split('/')[0...6].join('/')
+
+    cleaned = []
+
+    expect(cleanup).to receive(:find_artifacts).and_wrap_original do |original_method, *args, &block|
+      original_method.call(*args) { |dir| cleaned << dir }
+    end
+
+    cleanup.run!
+
+    expect(cleaned).to include(/#{artifact_directory}/)
+  end
+
+  it 'does not find pipeline artifacts on disk' do
+    artifact = create(:ci_pipeline_artifact, :with_coverage_report)
+    # using 0...6 to match the -min/maxdepth 6 strictly, since this is one directory
+    # deeper than job artifacts, and .dirname would not match
+    artifact_directory = artifact.file.relative_path.to_s.split('/')[0...6].join('/')
+
+    expect(cleanup).to receive(:find_artifacts).and_wrap_original do |original_method, *args, &block|
+      # this can either _not_ yield at all, or yield with any other file
+      # except the one that we're explicitly excluding
+      original_method.call(*args) { |path| expect(path).not_to match(artifact_directory) }
+    end
     cleanup.run!
   end