Simplify the codequality job

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

.codeclimate.yml

@@ -15,7 +15,7 @@ engines:
     enabled: false
   rubocop:
     enabled: true
-    channel: "gitlab-rubocop-0-52"
+    channel: "gitlab-rubocop-0-52-1"
 ratings:
   paths:
   - Gemfile.lock

.gitlab-ci.yml

@@ -674,22 +674,22 @@ karma:
 codequality:
   <<: *except-docs
   <<: *pull-cache
-  before_script: []
-  image: docker:latest
   stage: test
-  variables:
-    SETUP_DB: "false"
-    DOCKER_DRIVER: overlay
+  image: docker:latest
+  before_script: []
   services:
     - docker:dind
+  variables:
+    SETUP_DB: "false"
+    DOCKER_DRIVER: overlay2
+    CODECLIMATE_FORMAT: json
+  cache: {}
+  dependencies: []
   script:
-    - cp .rubocop.yml .rubocop.yml.bak
-    - grep -v "rubocop-gitlab-security" .rubocop.yml.bak > .rubocop.yml
-    - docker run --env CODECLIMATE_CODE="$PWD" --volume "$PWD":/code --volume /var/run/docker.sock:/var/run/docker.sock --volume /tmp/cc:/tmp/cc dev.gitlab.org:5005/gitlab/gitlab-build-images:gitlab-codeclimate-v2 analyze -f json > raw_codeclimate.json
-    - cat raw_codeclimate.json | docker run -i stedolan/jq -c 'map({check_name,fingerprint,location})' > codeclimate.json
-    - mv .rubocop.yml.bak .rubocop.yml
+    - ./scripts/codequality analyze -f json > codeclimate.json || true
   artifacts:
     paths: [codeclimate.json]
+    expire_in: 1 week
 
 sast:
   <<: *except-docs

scripts/codequality

+#!/bin/sh
+
+set -eo pipefail
+
+code_path=$(pwd)
+
+# docker run --tty will merge stderr and stdout, we don't need this on CI or
+# it will break codequality json file
+[ "$CI" != "" ] || docker_tty="--tty"
+
+docker pull dev.gitlab.org:5005/gitlab/gitlab-build-images:gitlab-codeclimate-rubocop-0-52-1 > /dev/null
+docker tag dev.gitlab.org:5005/gitlab/gitlab-build-images:gitlab-codeclimate-rubocop-0-52-1 codeclimate/codeclimate-rubocop:gitlab-codeclimate-rubocop-0-52-1 > /dev/null
+
+exec docker run --rm $docker_tty --env CODECLIMATE_CODE="$code_path" \
+	--volume "$code_path":/code \
+	--volume /var/run/docker.sock:/var/run/docker.sock \
+	--volume /tmp/cc:/tmp/cc \
+	codeclimate/codeclimate:${CODECLIMATE_VERSION:-0.71.1} "$@"