Fix Style/SlicingWithRange offences

.rubocop_todo.yml

@@ -827,11 +827,6 @@ Style/RescueModifier:
 Style/SingleArgumentDig:
   Enabled: false
 
-# Offense count: 45
-# Cop supports --auto-correct.
-Style/SlicingWithRange:
-  Enabled: false
-
 # Offense count: 63
 # Configuration parameters: AllowModifier.
 Style/SoleNestedConditional:

app/controllers/projects/blob_controller.rb

@@ -99,7 +99,7 @@ class Projects::BlobController < Projects::ApplicationController
     @content = params[:content]
     @blob.load_all_data!
     diffy = Diffy::Diff.new(@blob.data, @content, diff: '-U 3', include_diff_info: true)
-    diff_lines = diffy.diff.scan(/.*\n/)[2..-1]
+    diff_lines = diffy.diff.scan(/.*\n/)[2..]
     diff_lines = Gitlab::Diff::Parser.new.parse(diff_lines).to_a
     @diff_lines = Gitlab::Diff::Highlight.new(diff_lines, repository: @repository).highlight
 

app/helpers/diff_helper.rb

@@ -283,7 +283,7 @@ module DiffHelper
 
     return path unless path.size > max && max > 3
 
-    "...#{path[-(max - 3)..-1]}"
+    "...#{path[-(max - 3)..]}"
   end
 
   def code_navigation_path(diffs)

app/models/concerns/token_authenticatable_strategies/encryption_helper.rb

@@ -11,7 +11,7 @@ module TokenAuthenticatableStrategies
       # The pattern of the token is "#{DYNAMIC_NONCE_IDENTIFIER}#{token}#{iv_of_12_characters}"
       if token.start_with?(DYNAMIC_NONCE_IDENTIFIER) && token.size > NONCE_SIZE + DYNAMIC_NONCE_IDENTIFIER.size
         token_to_decrypt = token[1...-NONCE_SIZE]
-        iv = token[-NONCE_SIZE..-1]
+        iv = token[-NONCE_SIZE..]
 
         Gitlab::CryptoHelper.aes256_gcm_decrypt(token_to_decrypt, nonce: iv)
       else

app/models/namespaces/traversal/linear.rb

@@ -204,7 +204,7 @@ module Namespaces
         end
 
         if bottom
-          skope = skope.where(id: bottom.traversal_ids[0..-1])
+          skope = skope.where(id: bottom.traversal_ids)
         end
 
         # The original `with_depth` attribute in ObjectHierarchy increments as you

app/models/serverless/domain.rb

@@ -37,7 +37,7 @@ module Serverless
         'a1',
         serverless_domain_cluster.uuid[2..-3],
         'f2',
-        serverless_domain_cluster.uuid[-2..-1]
+        serverless_domain_cluster.uuid[-2..]
       ].join
     end
   end

app/models/wiki_page.rb

@@ -338,7 +338,7 @@ class WikiPage
     current_dirname = File.dirname(title)
 
     if persisted?
-      return title[1..-1] if current_dirname == '/'
+      return title[1..] if current_dirname == '/'
       return File.join([directory.presence, title].compact) if current_dirname == '.'
     end
 

app/services/cohorts_service.rb

@@ -38,7 +38,7 @@ class CohortsService
 
       {
         registration_month: registration_month,
-        activity_months: activity_months[1..-1],
+        activity_months: activity_months[1..],
         total: activity_months.first[:total],
         inactive: inactive
       }

app/uploaders/lfs_object_uploader.rb

@@ -9,7 +9,7 @@ class LfsObjectUploader < GitlabUploader
   alias_method :upload, :model
 
   def filename
-    model.oid[4..-1]
+    model.oid[4..]
   end
 
   def store_dir

config/initializers/wikicloth_patch.rb

@@ -108,7 +108,7 @@ module WikiCloth
           "<span class=\"error\">#{I18n.t('template loop detected', :tree => debug_tree)}</span>"
         else
           key = params[0].to_s.strip
-          key_options = params[1..-1].collect { |p| p.is_a?(Hash) ? { :name => p[:name].strip, :value => p[:value].strip } : p.strip }
+          key_options = params[1..].collect { |p| p.is_a?(Hash) ? { :name => p[:name].strip, :value => p[:value].strip } : p.strip }
           key_options ||= []
           key_digest = Digest::MD5.hexdigest(key_options.to_a.sort {|x,y| (x.is_a?(Hash) ? x[:name] : x) <=> (y.is_a?(Hash) ? y[:name] : y) }.inspect)
 

ee/lib/gitlab/geo/log_helpers.rb

@@ -51,7 +51,7 @@ module Gitlab
         index = context_data.index('JID-')
         return unless index
 
-        context_data[index + 4..-1]
+        context_data[index + 4..]
       end
     end
   end

ee/spec/elastic/migrate/20210421140400_add_new_data_to_merge_requests_documents_spec.rb

@@ -56,7 +56,7 @@ RSpec.describe AddNewDataToMergeRequestsDocuments, :elastic, :sidekiq_inline do
 
       it 'only updates merge_request documents missing visibility_level', :aggregate_failures do
         merge_request = merge_requests.first
-        add_visibility_level_for_merge_requests(merge_requests[1..-1])
+        add_visibility_level_for_merge_requests(merge_requests[1..])
 
         expected = [Gitlab::Elastic::DocumentReference.new(MergeRequest, merge_request.id, merge_request.es_id, merge_request.es_parent)]
         expect(::Elastic::ProcessInitialBookkeepingService).to receive(:track!).with(*expected).once

ee/spec/elastic/migrate/20210623081800_add_upvotes_to_issues_spec.rb

@@ -51,7 +51,7 @@ RSpec.describe AddUpvotesToIssues, :elastic, :sidekiq_inline do
 
       it 'only updates issue documents missing upvotes', :aggregate_failures do
         issue = issues.first
-        add_upvotes_for_issues(issues[1..-1])
+        add_upvotes_for_issues(issues[1..])
 
         expected = [Gitlab::Elastic::DocumentReference.new(Issue, issue.id, issue.es_id, issue.es_parent)]
         expect(::Elastic::ProcessInitialBookkeepingService).to receive(:track!).with(*expected).once

ee/spec/elastic/migrate/migration_shared_examples.rb

@@ -53,7 +53,7 @@ RSpec.shared_examples 'migration backfills a field' do
 
       it 'only updates documents missing a field', :aggregate_failures do
         object = objects.first
-        add_field_for_objects(objects[1..-1])
+        add_field_for_objects(objects[1..])
 
         expected = [Gitlab::Elastic::DocumentReference.new(klass, object.id, object.es_id, object.es_parent)]
         expect(::Elastic::ProcessInitialBookkeepingService).to receive(:track!).with(*expected).once.and_call_original

lib/banzai/filter/math_filter.rb

@@ -39,7 +39,7 @@ module Banzai
 
             code[:class] = INLINE_CLASSES
             code[STYLE_ATTRIBUTE] = 'inline'
-            closing.content = closing.content[1..-1]
+            closing.content = closing.content[1..]
             opening.content = opening.content[0..-2]
           end
         end

lib/banzai/filter/repository_link_filter.rb

@@ -174,7 +174,7 @@ module Banzai
       def build_relative_path(path, request_path)
         return request_path if path.empty?
         return path unless request_path
-        return path[1..-1] if path.start_with?('/')
+        return path[1..] if path.start_with?('/')
 
         parts = request_path.split('/')
 

lib/extracts_ref.rb

@@ -113,7 +113,7 @@ module ExtractsRef
     best_match = valid_refs.max_by(&:length)
 
     # Partition the string into the ref and the path, ignoring the empty first value
-    id.partition(best_match)[1..-1]
+    id.partition(best_match)[1..]
   end
 
   def use_first_path_segment?(ref)

lib/flowdock/git/builder.rb

@@ -51,7 +51,7 @@ module Flowdock
       end
 
       def body
-        content = @commit[:message][first_line.size..-1]
+        content = @commit[:message][first_line.size..]
         content.strip! if content
         "<pre>#{content}</pre>" unless content.empty?
       end

lib/gitlab/chat/output.rb

@@ -48,10 +48,10 @@ module Gitlab
         # follows it will produce a nil. For example:
         #
         #     "\n".split("\n")        # => []
-        #     "\n".split("\n")[1..-1] # => nil
+        #     "\n".split("\n")[1..] # => nil
         #
         # To work around this we only "join" if we're given an Array.
-        if (converted = output.split("\n")[1..-1])
+        if (converted = output.split("\n")[1..])
           converted.join("\n")
         else
           ''

lib/gitlab/ci/reports/security/report.rb

@@ -51,7 +51,7 @@ module Gitlab
 
           def replace_with!(other)
             instance_variables.each do |ivar|
-              instance_variable_set(ivar, other.public_send(ivar.to_s[1..-1])) # rubocop:disable GitlabSecurity/PublicSend
+              instance_variable_set(ivar, other.public_send(ivar.to_s[1..])) # rubocop:disable GitlabSecurity/PublicSend
             end
           end
 

lib/gitlab/diff/custom_diff.rb

@@ -36,7 +36,7 @@ module Gitlab
         end
 
         def strip_diff_frontmatter(diff_content)
-          diff_content.scan(/.*\n/)[2..-1]&.join('') if diff_content.present?
+          diff_content.scan(/.*\n/)[2..]&.join('') if diff_content.present?
         end
 
         def blobs_with_transformed_diffs

lib/gitlab/diff/inline_diff.rb

@@ -6,8 +6,8 @@ module Gitlab
       attr_accessor :old_line, :new_line, :offset
 
       def initialize(old_line, new_line, offset: 0)
-        @old_line = old_line[offset..-1]
-        @new_line = new_line[offset..-1]
+        @old_line = old_line[offset..]
+        @new_line = new_line[offset..]
         @offset = offset
       end
 

lib/gitlab/gfm/reference_rewriter.rb

@@ -57,7 +57,7 @@ module Gitlab
 
       def unfold_reference(reference, match, target_parent)
         before = @text[0...match.begin(0)]
-        after = @text[match.end(0)..-1]
+        after = @text[match.end(0)..]
 
         referable = find_referable(reference)
         return reference unless referable

lib/gitlab/gpg.rb

@@ -48,7 +48,7 @@ module Gitlab
         raw_keys.each_with_object({}) do |raw_key, grouped_subkeys|
           primary_subkey_id = raw_key.primary_subkey.keyid
 
-          grouped_subkeys[primary_subkey_id] = raw_key.subkeys[1..-1].map do |s|
+          grouped_subkeys[primary_subkey_id] = raw_key.subkeys[1..].map do |s|
             { keyid: s.keyid, fingerprint: s.fingerprint }
           end
         end

lib/gitlab/search/query.rb

@@ -44,7 +44,7 @@ module Gitlab
 
           next unless match
 
-          input = match.split(':')[1..-1].join
+          input = match.split(':')[1..].join
           next if input.empty?
 
           filter[:negated] = match.start_with?("-")

lib/gitlab/sherlock/line_profiler.rb

@@ -70,7 +70,7 @@ module Gitlab
 
           next if total_duration <= MINIMUM_DURATION
 
-          stats[1..-1].each_with_index do |data, index|
+          stats[1..].each_with_index do |data, index|
             next unless source_lines[index]
 
             duration = microsec_to_millisec(data[0])

lib/gitlab/string_range_marker.rb

@@ -99,7 +99,7 @@ module Gitlab
 
       start = prev = positions[0]
       range = MarkerRange.new(start, prev, mode: mode)
-      positions[1..-1].each do |pos|
+      positions[1..].each do |pos|
         if pos == prev + 1
           range = MarkerRange.new(start, pos, mode: mode)
           prev = pos

lib/gitlab/utils/nokogiri.rb

@@ -16,7 +16,7 @@ module Gitlab
           # we remove the leading `//` and add `descendant-or-self::`
           # in order to ensure we're searching from this node and all
           # descendants.
-          xpath.map { |t| "descendant-or-self::#{t[2..-1]}" }.join('|')
+          xpath.map { |t| "descendant-or-self::#{t[2..]}" }.join('|')
         end
       end
     end

lib/tasks/gitlab/seed/group_seed.rake

@@ -184,7 +184,7 @@ class GroupSeeder
       group = Group.find(group_id)
 
       @resource_count.times do |i|
-        _, project_path = PROJECT_URL.split('/')[-2..-1]
+        _, project_path = PROJECT_URL.split('/')[-2..]
 
         project_path.gsub!('.git', '')
 

rubocop/cop/migration/schedule_async.rb

@@ -46,7 +46,7 @@ module RuboCop
         end
 
         def arguments(node)
-          node.children[2..-1]
+          node.children[2..]
         end
       end
     end

rubocop/cop/project_path_helper.rb

@@ -46,7 +46,7 @@ module RuboCop
       end
 
       def arguments(node)
-        node.children[2..-1]
+        node.children[2..]
       end
     end
   end

spec/controllers/projects/serverless/functions_controller_spec.rb

@@ -128,7 +128,7 @@ RSpec.describe Projects::Serverless::FunctionsController do
 
             expect(json_response["functions"]).to all(
               include(
-                'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..-1]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
+                'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
               )
             )
           end
@@ -166,7 +166,7 @@ RSpec.describe Projects::Serverless::FunctionsController do
             expect(response).to have_gitlab_http_status(:ok)
 
             expect(json_response).to include(
-              'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..-1]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
+              'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
             )
           end
 

spec/features/merge_request/user_views_open_merge_request_spec.rb

@@ -20,7 +20,7 @@ RSpec.describe 'User views an open merge request' do
 
       # Work around a weird Capybara behavior where calling `parent` on a node
       # returns the whole document, not the node's actual parent element
-      expect(find(:xpath, "#{node.path}/..").text).to eq(merge_request.description[2..-1])
+      expect(find(:xpath, "#{node.path}/..").text).to eq(merge_request.description[2..])
 
       expect(page).to have_content(merge_request.title)
     end

spec/features/projects/labels/issues_sorted_by_priority_spec.rb

@@ -80,7 +80,7 @@ RSpec.describe 'Issue prioritization' do
 
       expect(issue_titles[0..1]).to contain_exactly('issue_5', 'issue_8')
       expect(issue_titles[2..4]).to contain_exactly('issue_1', 'issue_3', 'issue_7')
-      expect(issue_titles[5..-1]).to eq(%w(issue_2 issue_4 issue_6))
+      expect(issue_titles[5..]).to eq(%w(issue_2 issue_4 issue_6))
     end
   end
 end

spec/finders/packages/nuget/package_finder_spec.rb

@@ -71,7 +71,7 @@ RSpec.describe Packages::Nuget::PackageFinder do
       end
 
       context 'with prefix wildcard' do
-        let(:package_name) { "%#{package1.name[3..-1]}" }
+        let(:package_name) { "%#{package1.name[3..]}" }
 
         it { is_expected.to match_array([package1, package2]) }
       end

spec/lib/gitlab/gitaly_client/conflict_files_stitcher_spec.rb

@@ -43,10 +43,10 @@ RSpec.describe Gitlab::GitalyClient::ConflictFilesStitcher do
 
       messages = [
         double(files: [double(header: header_1), double(header: nil, content: content_1[0..5])]),
-        double(files: [double(header: nil, content: content_1[6..-1])]),
+        double(files: [double(header: nil, content: content_1[6..])]),
         double(files: [double(header: header_2)]),
         double(files: [double(header: nil, content: content_2[0..5]), double(header: nil, content: content_2[6..10])]),
-        double(files: [double(header: nil, content: content_2[11..-1])])
+        double(files: [double(header: nil, content: content_2[11..])])
       ]
 
       conflict_files = described_class.new(messages, target_repository.gitaly_repository).to_a

spec/lib/gitlab/gitaly_client/diff_stitcher_spec.rb

@@ -41,7 +41,7 @@ RSpec.describe Gitlab::GitalyClient::DiffStitcher do
       msg_2.raw_patch_data = diff_2.patch[0..100]
       msg_2.end_of_patch = false
 
-      msg_3 = OpenStruct.new(raw_patch_data: diff_2.patch[101..-1], end_of_patch: true)
+      msg_3 = OpenStruct.new(raw_patch_data: diff_2.patch[101..], end_of_patch: true)
 
       msg_4 = OpenStruct.new(diff_3.to_h.except(:patch))
       msg_4.raw_patch_data = diff_3.patch

spec/lib/gitlab/gpg/invalid_gpg_signature_updater_spec.rb

@@ -192,7 +192,7 @@ RSpec.describe Gitlab::Gpg::InvalidGpgSignatureUpdater do
           project: project,
           commit_sha: commit_sha,
           gpg_key: nil,
-          gpg_key_primary_keyid: GpgHelpers::User3.subkey_fingerprints.last[24..-1],
+          gpg_key_primary_keyid: GpgHelpers::User3.subkey_fingerprints.last[24..],
           verification_status: 'unknown_key'
       end
 

spec/lib/gitlab/graphql/pagination/keyset/connection_generic_keyset_spec.rb

@@ -98,7 +98,7 @@ RSpec.describe Gitlab::Graphql::Pagination::Keyset::Connection do
           let(:nodes) { Project.all.order(Gitlab::Pagination::Keyset::Order.build([column_order_id_desc])) }
 
           it 'returns the correct nodes' do
-            expect(subject.sliced_nodes).to contain_exactly(*projects[2..-1])
+            expect(subject.sliced_nodes).to contain_exactly(*projects[2..])
           end
         end
       end
@@ -107,7 +107,7 @@ RSpec.describe Gitlab::Graphql::Pagination::Keyset::Connection do
         let(:arguments) { { after: encoded_cursor(projects[1]) } }
 
         it 'only returns the project before the selected one' do
-          expect(subject.sliced_nodes).to contain_exactly(*projects[2..-1])
+          expect(subject.sliced_nodes).to contain_exactly(*projects[2..])
         end
 
         context 'when the sort order is descending' do

spec/lib/gitlab/graphql/pagination/keyset/connection_spec.rb

@@ -120,7 +120,7 @@ RSpec.describe Gitlab::Graphql::Pagination::Keyset::Connection do
         let(:nodes) { Project.all.order(id: :desc) }
 
         it 'returns the correct nodes' do
-          expect(subject.sliced_nodes).to contain_exactly(*projects[2..-1])
+          expect(subject.sliced_nodes).to contain_exactly(*projects[2..])
         end
       end
     end
@@ -129,7 +129,7 @@ RSpec.describe Gitlab::Graphql::Pagination::Keyset::Connection do
       let(:arguments) { { after: encoded_cursor(projects[1]) } }
 
       it 'only returns the project before the selected one' do
-        expect(subject.sliced_nodes).to contain_exactly(*projects[2..-1])
+        expect(subject.sliced_nodes).to contain_exactly(*projects[2..])
       end
 
       context 'when the sort order is descending' do

spec/lib/gitlab/multi_collection_paginator_spec.rb

@@ -40,7 +40,7 @@ RSpec.describe Gitlab::MultiCollectionPaginator do
     end
 
     it 'fils the last page with elements from the second collection' do
-      expected_collection = all_groups[-2..-1]
+      expected_collection = all_groups[-2..]
 
       expect(paginator.paginate(3)).to eq(expected_collection)
     end

spec/lib/gitlab/pagination/keyset/order_spec.rb

@@ -127,7 +127,7 @@ RSpec.describe Gitlab::Pagination::Keyset::Order do
         end
 
         it do
-          expect(subject).to eq(expected.reverse[1..-1]) # removing one item because we used it to calculate cursor data for the "last" page in subject
+          expect(subject).to eq(expected.reverse[1..]) # removing one item because we used it to calculate cursor data for the "last" page in subject
         end
       end
     end

spec/lib/gitlab/rack_attack_spec.rb

@@ -78,7 +78,7 @@ RSpec.describe Gitlab::RackAttack, :aggregate_failures do
 
     it 'configures tracks and throttles with a selected set of dry-runs' do
       dry_run_throttles = throttles.each_key.first(2)
-      regular_throttles = throttles.keys[2..-1]
+      regular_throttles = throttles.keys[2..]
       stub_env('GITLAB_THROTTLE_DRY_RUN', dry_run_throttles.join(','))
 
       described_class.configure(fake_rack_attack)

spec/models/ci/build_spec.rb

@@ -2506,7 +2506,7 @@ RSpec.describe Ci::Build do
       it { is_expected.to start_with(project.web_url[0..6]) }
       it { is_expected.to include(build.token) }
       it { is_expected.to include('gitlab-ci-token') }
-      it { is_expected.to include(project.web_url[7..-1]) }
+      it { is_expected.to include(project.web_url[7..]) }
     end
 
     context 'when token is empty' do

spec/services/system_notes/commit_service_spec.rb

@@ -57,7 +57,7 @@ RSpec.describe SystemNotes::CommitService do
         end
 
         context 'with multiple existing commits' do
-          let(:old_commits) { noteable.commits[3..-1] }
+          let(:old_commits) { noteable.commits[3..] }
 
           context 'with oldrev' do
             let(:oldrev) { noteable.commits[2].id }

spec/support/helpers/gpg_helpers.rb

@@ -138,7 +138,7 @@ module GpgHelpers
     end
 
     def primary_keyid
-      fingerprint[-16..-1]
+      fingerprint[-16..]
     end
 
     def fingerprint
@@ -281,7 +281,7 @@ module GpgHelpers
     end
 
     def primary_keyid2
-      fingerprint2[-16..-1]
+      fingerprint2[-16..]
     end
 
     def fingerprint2
@@ -374,7 +374,7 @@ module GpgHelpers
     end
 
     def primary_keyid
-      fingerprint[-16..-1]
+      fingerprint[-16..]
     end
 
     def fingerprint
@@ -776,7 +776,7 @@ module GpgHelpers
     end
 
     def primary_keyid
-      fingerprint[-16..-1]
+      fingerprint[-16..]
     end
 
     def fingerprint

spec/support/helpers/memory_usage_helper.rb

@@ -23,7 +23,7 @@ module MemoryUsageHelper
     output, status = Gitlab::Popen.popen(%w(free -m))
     abort "`free -m` return code is #{status}: #{output}" unless status == 0
 
-    result = output.split("\n")[1].split(" ")[1..-1]
+    result = output.split("\n")[1].split(" ")[1..]
     attrs = %i(m_total m_used m_free m_shared m_buffers_cache m_available).freeze
 
     attrs.zip(result).to_h