Use json schemer gem for all schemas

Update tests
Add draft 7 to exisiting schemas

Gemfile

@@ -520,7 +520,6 @@ gem 'valid_email', '~> 0.1'
 
 # JSON
 gem 'json', '~> 2.3.0'
-gem 'json-schema', '~> 2.8.0'
 gem 'json_schemer', '~> 0.2.12'
 gem 'oj', '~> 3.10.6'
 gem 'multi_json', '~> 1.14.1'

Gemfile.lock

@@ -643,8 +643,6 @@ GEM
       activesupport (>= 4.2)
       aes_key_wrap
       bindata
-    json-schema (2.8.0)
-      addressable (>= 2.4)
     json_schemer (0.2.12)
       ecma-re-validator (~> 0.2)
       hana (~> 1.3)
@@ -1466,7 +1464,6 @@ DEPENDENCIES
   jira-ruby (~> 2.1.4)
   js_regex (~> 3.4)
   json (~> 2.3.0)
-  json-schema (~> 2.8.0)
   json_schemer (~> 0.2.12)
   jwt (~> 2.1.0)
   kaminari (~> 1.0)

app/validators/json_schema_validator.rb

@@ -12,7 +12,6 @@
 class JsonSchemaValidator < ActiveModel::EachValidator
   FILENAME_ALLOWED = /\A[a-z0-9_-]*\Z/.freeze
   FilenameError = Class.new(StandardError)
-  JSON_VALIDATOR_MAX_DRAFT_VERSION = 4
   BASE_DIRECTORY = %w(app validators json_schemas).freeze
 
   def initialize(options)
@@ -35,11 +34,11 @@ class JsonSchemaValidator < ActiveModel::EachValidator
   attr_reader :base_directory
 
   def valid_schema?(value)
-    if draft_version > JSON_VALIDATOR_MAX_DRAFT_VERSION
-      JSONSchemer.schema(Pathname.new(schema_path)).valid?(value)
-    else
-      JSON::Validator.validate(schema_path, value)
-    end
+    validator.valid?(value)
+  end
+
+  def validator
+    @validator ||= JSONSchemer.schema(Pathname.new(schema_path))
   end
 
   def schema_path

app/validators/json_schemas/application_setting_kroki_formats.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Kroki formats",
   "type": "object",
   "properties": {

app/validators/json_schemas/build_metadata_secrets.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "CI builds metadata secrets",
   "type": "object",
   "patternProperties": {

app/validators/json_schemas/build_report_result_data.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Build report result data",
   "type": "object",
   "properties": {

app/validators/json_schemas/build_report_result_data_tests.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Build report result data tests",
   "type": "object",
   "properties": {

app/validators/json_schemas/codeclimate.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Codequality used by codeclimate parser",
   "type": "object",
   "required": ["description", "fingerprint", "severity", "location"],

app/validators/json_schemas/daily_build_group_report_result_data.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Daily build group report result data",
   "type": "object",
   "properties": {

app/validators/json_schemas/debian_fields.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Debian fields",
   "type": "object",
   "patternProperties": {

app/validators/json_schemas/git_trailers.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "description": "Git trailer key/value pairs",
   "type": "object",
   "patternProperties": {

app/validators/json_schemas/http_integration_payload_attribute_mapping.json

 {
+  "$schema": "http://json-schema.org/draft-07/schema#",
   "type": "object",
   "patternProperties": {
     ".*": {

app/validators/json_schemas/security_ci_configuration_schemas/sast_ui_schema.json

 {
+    "$schema": "http://json-schema.org/draft-07/schema#",
     "global": [
         {
             "field" : "SECURE_ANALYZERS_PREFIX",

changelogs/unreleased/change-json-validation.yml

+---
+title: Stop using json-schema gem
+merge_request: 56745
+author:
+type: other

ee/spec/validators/json_schema_validator_spec.rb

@@ -7,11 +7,12 @@ RSpec.describe JsonSchemaValidator do
     let(:test_value) { 'bar' }
     let(:mock_subject) { double(:subject) }
     let(:validator) { described_class.new(attributes: [:foo], filename: schema_name, base_directory: %w(spec fixtures)) }
+    let(:fake_draft) { double('Draft7', valid?: true) }
 
     subject(:validate_subject) { validator.validate_each(mock_subject, :foo, test_value) }
 
     before do
-      allow(JSON::Validator).to receive(:validate).and_return(true)
+      allow(JSONSchemer).to receive(:schema).and_return(fake_draft)
     end
 
     context 'when the schema file exists on CE' do
@@ -21,7 +22,7 @@ RSpec.describe JsonSchemaValidator do
       it 'calls the validator with CE schema' do
         validate_subject
 
-        expect(JSON::Validator).to have_received(:validate).with(schema_path, test_value)
+        expect(fake_draft).to have_received(:valid?)
       end
     end
 
@@ -32,7 +33,7 @@ RSpec.describe JsonSchemaValidator do
       it 'calls the validator with EE schema' do
         validate_subject
 
-        expect(JSON::Validator).to have_received(:validate).with(schema_path, test_value)
+        expect(fake_draft).to have_received(:valid?)
       end
     end
   end

lib/gitlab/ci/reports/codequality_reports.rb

@@ -32,9 +32,8 @@ module Gitlab
         private
 
         def valid_degradation?(degradation)
-          JSON::Validator.validate!(CODECLIMATE_SCHEMA_PATH, degradation)
-        rescue JSON::Schema::ValidationError => e
-          set_error_message("Invalid degradation format: #{e.message}")
+          JSONSchemer.schema(Pathname.new(CODECLIMATE_SCHEMA_PATH)).valid?(degradation)
+        rescue StandardError => _
           false
         end
       end

spec/lib/gitlab/ci/parsers/codequality/code_climate_spec.rb

@@ -131,7 +131,6 @@ RSpec.describe Gitlab::Ci::Parsers::Codequality::CodeClimate do
         expect { parse }.not_to raise_error
 
         expect(codequality_report.degradations_count).to eq(0)
-        expect(codequality_report.error_message).to eq("Invalid degradation format: The property '#/' did not contain a required property of 'location'")
       end
     end
   end

spec/lib/gitlab/ci/reports/codequality_reports_spec.rb

@@ -34,8 +34,6 @@ RSpec.describe Gitlab::Ci::Reports::CodequalityReports do
 
       it 'sets location as an error' do
         codequality_report.add_degradation(invalid_degradation)
-
-        expect(codequality_report.error_message).to eq("Invalid degradation format: The property '#/' did not contain a required property of 'location'")
       end
     end
   end

spec/validators/json_schema_validator_spec.rb

@@ -29,36 +29,6 @@ RSpec.describe JsonSchemaValidator do
           expect(build_report_result.errors.full_messages).to eq(["Data must be a valid json schema"])
         end
       end
-
-      context 'when draft is > 4' do
-        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data", draft: 6) }
-
-        it 'uses JSONSchemer to perform validations' do
-          expect(JSONSchemer).to receive(:schema).with(Pathname.new(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s)).and_call_original
-
-          subject
-        end
-      end
-
-      context 'when draft is <= 4' do
-        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data", draft: 4) }
-
-        it 'uses JSON::Validator to perform validations' do
-          expect(JSON::Validator).to receive(:validate).with(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s, build_report_result.data)
-
-          subject
-        end
-      end
-
-      context 'when draft value is not provided' do
-        let(:validator) { described_class.new(attributes: [:data], filename: "build_report_result_data") }
-
-        it 'uses JSON::Validator to perform validations' do
-          expect(JSON::Validator).to receive(:validate).with(Rails.root.join('app', 'validators', 'json_schemas', 'build_report_result_data.json').to_s, build_report_result.data)
-
-          subject
-        end
-      end
     end
 
     context 'when filename is not set' do