This style change enforces `return if ...` instead of
`return nil if ...` to save maintainers a few minor review points

This change allows the GitLab rails and sidekiq components to receive
tracing spans from upstream services such as Workhorse and pass these
spans on to downstream services including Gitaly and Sidekiq.

This change will also emit traces for incoming and outgoing requests
using the propagated trace information. This will allow operators and
engineers to view traces across the Workhorse, GitLab Rails, Sidekiq and
Gitaly components.

Additional intra-service instrumentation will be added in future
changes.

Updates specs to use new rails5 format.

The old format:
`get :show, { some: params }, { some: headers }`

The new format:
`get :show, params: { some: params }, headers: { some: headers }`

This Cop enforces the rule that injecting EE modules (using prepend,
include, or extend) is done by placing the injection on the last line of
a file, instead of somewhere in the middle. By placing these lines at
the very end, merge conflicts will not happen.

This should wrap up frozen string
enablement for gitlab-ce.

xref gitlab-org/gitlab-ce#47424.

Use ACCEPT_INSECURE_CERTS env var and fix step

Simplify saml signin

Fix rubo cop offence

Add missing # frozen_string_literal: true

Moves RSpec/FilePath cop from gitlab-styles, so we can specify
filepaths to ignore without hardcoding them in the gem.

Enables frozen string for the following files:

* lib/generators/**/*.rb
* lib/gitaly/**/*.rb
* lib/google_api/**/*.rb
* lib/haml_lint/**/*.rb
* lib/json_web_token/**/*.rb
* lib/mattermost/**/*.rb
* lib/microsoft_teams/**/*.rb
* lib/object_storage/**/*.rb
* lib/omni_auth/**/*.rb
* lib/peek/**/*.rb
* lib/rouge/**/*.rb
* lib/rspec_flaky/**/*.rb
* lib/system_check/**/*.rb

Partially addresses #47424.

These are dynamic translations, so has to be marked explicitly using `N_`,
but they are not used in runtime, so can exist in separate file.
https://github.com/grosser/gettext_i18n_rails#unfound-translations-with-rake-gettextfind

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

- All definitions have been replaced by classes:
  http://graphql-ruby.org/schema/class_based_api.html
- Authorization & Presentation have been refactored to work in the
  class based system
- Loaders have been replaced by resolvers
- Times are now coersed as ISO 8601

Server Side Request Forgery in Services and Web Hooks

See merge request gitlab/gitlabhq!2337

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

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

it's inside lib/tasks/*

Also try to use the same config from EE

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

And use .rubocop.yml to exclude paths we don't care,
rather than using the cop itself to exclude.