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-rw-r--r--rubocop/cop/project_path_helper.rb51
-rw-r--r--rubocop/rubocop.rb1
-rw-r--r--spec/rubocop/cop/project_path_helper_spec.rb41
3 files changed, 93 insertions, 0 deletions
diff --git a/rubocop/cop/project_path_helper.rb b/rubocop/cop/project_path_helper.rb
new file mode 100644
index 00000000000..3e1ce71ac06
--- /dev/null
+++ b/rubocop/cop/project_path_helper.rb
@@ -0,0 +1,51 @@
+module RuboCop
+ module Cop
+ class ProjectPathHelper < RuboCop::Cop::Cop
+ MSG = 'Use short project path helpers without explicitly passing the namespace: ' \
+ '`foo_project_bar_path(project, bar)` instead of ' \
+ '`foo_namespace_project_bar_path(project.namespace, project, bar)`.'.freeze
+
+ METHOD_NAME_PATTERN = /\A([a-z_]+_)?namespace_project(?:_[a-z_]+)?_(?:url|path)\z/.freeze
+
+ def on_send(node)
+ return unless method_name(node).to_s =~ METHOD_NAME_PATTERN
+
+ namespace_expr, project_expr = arguments(node)
+ return unless namespace_expr && project_expr
+
+ return unless namespace_expr.type == :send
+ return unless method_name(namespace_expr) == :namespace
+ return unless receiver(namespace_expr) == project_expr
+
+ add_offense(node, :selector)
+ end
+
+ def autocorrect(node)
+ helper_name = method_name(node).to_s.sub('namespace_project', 'project')
+
+ arguments = arguments(node)
+ arguments.shift # Remove namespace argument
+
+ replacement = "#{helper_name}(#{arguments.map(&:source).join(', ')})"
+
+ lambda do |corrector|
+ corrector.replace(node.source_range, replacement)
+ end
+ end
+
+ private
+
+ def receiver(node)
+ node.children[0]
+ end
+
+ def method_name(node)
+ node.children[1]
+ end
+
+ def arguments(node)
+ node.children[2..-1]
+ end
+ end
+ end
+end
diff --git a/rubocop/rubocop.rb b/rubocop/rubocop.rb
index 55d7708fa8c..69b4b29507c 100644
--- a/rubocop/rubocop.rb
+++ b/rubocop/rubocop.rb
@@ -3,6 +3,7 @@ require_relative 'cop/gem_fetcher'
require_relative 'cop/activerecord_serialize'
require_relative 'cop/redirect_with_status'
require_relative 'cop/polymorphic_associations'
+require_relative 'cop/project_path_helper'
require_relative 'cop/migration/add_column'
require_relative 'cop/migration/add_column_with_default_to_large_table'
require_relative 'cop/migration/add_concurrent_foreign_key'
diff --git a/spec/rubocop/cop/project_path_helper_spec.rb b/spec/rubocop/cop/project_path_helper_spec.rb
new file mode 100644
index 00000000000..bc47b45cad7
--- /dev/null
+++ b/spec/rubocop/cop/project_path_helper_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+require 'rubocop'
+require 'rubocop/rspec/support'
+
+require_relative '../../../rubocop/cop/project_path_helper'
+
+describe RuboCop::Cop::ProjectPathHelper do
+ include CopHelper
+
+ subject(:cop) { described_class.new }
+
+ context "when using namespace_project with the project's namespace" do
+ let(:source) { 'edit_namespace_project_issue_path(@issue.project.namespace, @issue.project, @issue)' }
+ let(:correct_source) { 'edit_project_issue_path(@issue.project, @issue)' }
+
+ it 'registers an offense' do
+ inspect_source(cop, source)
+
+ aggregate_failures do
+ expect(cop.offenses.size).to eq(1)
+ expect(cop.offenses.map(&:line)).to eq([1])
+ expect(cop.highlights).to eq(['edit_namespace_project_issue_path'])
+ end
+ end
+
+ it 'autocorrects to the right version' do
+ autocorrected = autocorrect_source(cop, source)
+
+ expect(autocorrected).to eq(correct_source)
+ end
+ end
+
+ context 'when using namespace_project with a different namespace' do
+ it 'registers no offense' do
+ inspect_source(cop, 'edit_namespace_project_issue_path(namespace, project)')
+
+ expect(cop.offenses.size).to eq(0)
+ end
+ end
+end