Fix rubocop Style/ZeroLengthPredicate

.rubocop_todo.yml

@@ -808,20 +808,6 @@ Style/UnlessElse:
 Style/UnneededInterpolation:
   Enabled: false
 
-# Offense count: 11
-# Cop supports --auto-correct.
-Style/ZeroLengthPredicate:
-  Exclude:
-    - 'app/models/deploy_key.rb'
-    - 'app/models/network/commit.rb'
-    - 'app/models/network/graph.rb'
-    - 'app/models/project_services/asana_service.rb'
-    - 'app/services/boards/create_service.rb'
-    - 'app/services/merge_requests/conflicts/list_service.rb'
-    - 'lib/declarative_policy/dsl.rb'
-    - 'lib/extracts_path.rb'
-    - 'lib/gitlab/git/repository.rb'
-
 # Offense count: 22840
 # Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
 # URISchemes: http, https

app/models/deploy_key.rb

@@ -18,7 +18,7 @@ class DeployKey < Key
   end
 
   def orphaned?
-    self.deploy_keys_projects.length == 0
+    self.deploy_keys_projects.empty?
   end
 
   def almost_orphaned?

app/models/network/commit.rb

@@ -18,7 +18,7 @@ module Network
     end
 
     def space
-      if @spaces.size > 0
+      if @spaces.present?
         @spaces.first
       else
         0

app/models/network/graph.rb

@@ -81,7 +81,7 @@ module Network
       skip = 0
       while offset == -1
         tmp_commits = find_commits(skip)
-        if tmp_commits.size > 0
+        if tmp_commits.present?
           index = tmp_commits.index do |c|
             c.id == @commit.id
           end
@@ -218,7 +218,7 @@ module Network
     def get_space_base(leaves)
       space_base = 1
       parents = leaves.last.parents(@map)
-      if parents.size > 0
+      if parents.present?
         if parents.first.space > 0
           space_base = parents.first.space
         end

app/models/project_services/asana_service.rb

@@ -65,7 +65,7 @@ http://app.asana.com/-/account_api'
     # check the branch restriction is poplulated and branch is not included
     branch = Gitlab::Git.ref_name(data[:ref])
     branch_restriction = restrict_to_branch.to_s
-    if branch_restriction.length > 0 && branch_restriction.index(branch).nil?
+    if branch_restriction.present? && branch_restriction.index(branch).nil?
       return
     end
 

app/services/boards/create_service.rb

@@ -9,7 +9,7 @@ module Boards
     private
 
     def can_create_board?
-      parent.boards.size == 0
+      parent.boards.empty?
     end
 
     def create_board!

lib/extracts_path.rb

@@ -54,7 +54,7 @@ module ExtractsPath
 
       valid_refs = ref_names.select { |v| id.start_with?("#{v}/") }
 
-      if valid_refs.length == 0
+      if valid_refs.empty?
         # No exact ref match, so just try our best
         pair = id.match(%r{([^/]+)(.*)}).captures
       else