Fix some Style/StringConcatenation warnings

app/controllers/application_controller.rb

@@ -216,7 +216,7 @@ class ApplicationController < ActionController::Base
   # asserts that the request method is the +method+ given as a parameter
   # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get.
   def assert_method(method)
-    ok = request.send((method.to_s.downcase + "?").to_sym)
+    ok = request.send(:"#{method.to_s.downcase}?")
     raise OSM::APIBadMethodError, method unless ok
   end
 

app/controllers/users_controller.rb

@@ -359,7 +359,7 @@ class UsersController < ApplicationController
         gravatar_enabled = gravatar_enable(current_user)
         if current_user.save
           flash[:notice] = if gravatar_enabled
-                             t("users.confirm_email.success") + " " + gravatar_status_message(current_user)
+                             "#{t('users.confirm_email.success')} #{gravatar_status_message(current_user)}"
                            else
                              t("users.confirm_email.success")
                            end
@@ -494,7 +494,7 @@ class UsersController < ApplicationController
   ##
   # omniauth failure callback
   def auth_failure
-    flash[:error] = t("users.auth_failure." + params[:message])
+    flash[:error] = t("users.auth_failure.#{params[:message]}")
     redirect_to params[:origin] || login_url
   end
 
@@ -524,7 +524,7 @@ class UsersController < ApplicationController
     if referer.nil?
       params[:origin] = request.path
     else
-      params[:origin] = request.path + "?referer=" + CGI.escape(referer)
+      params[:origin] = "#{request.path}?referer=#{CGI.escape(referer)}"
       params[:referer] = referer
     end
 

app/helpers/browse_helper.rb

@@ -44,7 +44,7 @@ module BrowseHelper
     if object.redacted?
       ""
     else
-      h(icon_tags(object).map { |k, v| k + "=" + v }.to_sentence)
+      h(icon_tags(object).map { |k, v| "#{k}=#{v}" }.to_sentence)
     end
   end
 

script/locale/yaml2po

@@ -13,14 +13,14 @@ require "yaml"
 require "optparse"
 
 LOCALE_DIR = File.dirname(__FILE__) + "/../../config/locales/"
-EN = YAML.load_file(LOCALE_DIR + "en.yml")
+EN = YAML.load_file("#{LOCALE_DIR}en.yml")
 
 def iterate(hash, fhash = {}, path = "", outfile = $stdout)
   hash.each do |key, val|
     fhash[key] = {} unless fhash.key? key
     if val.is_a? Hash
       fhash[key] = {} unless fhash[key].is_a? Hash
-      iterate(val, fhash[key], path + key + ":", outfile)
+      iterate(val, fhash[key], "#{path}#{key}:#{outfile}")
     else
       outfile.puts "msgctxt \"#{path}#{key}\""
       outfile.puts "msgid \"#{val}\""
@@ -31,7 +31,7 @@ end
 
 def lang2po(lang, outfile = $stdout)
   puts lang
-  infile = LOCALE_DIR + lang + ".yml"
+  infile = "#{LOCALE_DIR}#{lang}.yml"
   if File.exist? infile
     oth = YAML.load_file(infile)
     oth = oth[lang]
@@ -44,17 +44,17 @@ end
 opt = ARGV[0]
 if opt == "--all"
   # Produce .po files for all langs, and a .pot template
-  PO_DIR = LOCALE_DIR + "po/"
-  Dir.mkdir(PO_DIR) unless File.directory?(PO_DIR)
-  Dir.glob(LOCALE_DIR + "*.yml") do |filename|
+  po_dir = "#{LOCALE_DIR}po/"
+  Dir.mkdir(po_dir) unless File.directory?(po_dir)
+  Dir.glob("#{LOCALE_DIR}/*.yml") do |filename|
     lang = File.basename(filename, ".yml")
     unless lang == "en"
-      outfile = File.new(PO_DIR + "#{lang}.po", "w")
+      outfile = File.new("#{po_dir}#{lang}.po", "w")
       lang2po(lang, outfile)
       outfile.close
     end
   end
-  outfile = File.new(PO_DIR + "rails_port.pot", "w")
+  outfile = File.new("#{po_dir}rails_port.pot", "w")
   iterate(EN["en"], {}, "", outfile)
   outfile.close
 elsif opt

test/integration/short_links_test.rb

@@ -16,21 +16,21 @@ class ShortLinksTest < ActionDispatch::IntegrationTest
     anchor = "map=#{zoom}/#{lat}/#{lon}"
 
     # test without marker
-    get "/go/" + short_link
+    get "/go/#{short_link}"
     assert_redirected_to :controller => "site", :action => "index", :anchor => anchor
 
     # test with marker
-    get "/go/" + short_link + "?m"
+    get "/go/#{short_link}?m"
     assert_redirected_to :controller => "site", :action => "index", :mlat => lat.to_s, :mlon => lon.to_s, :anchor => anchor
 
     # test with layers and a marker
-    get "/go/" + short_link + "?m&layers=B000FTF"
+    get "/go/#{short_link}?m&layers=B000FTF"
     assert_redirected_to :controller => "site", :action => "index", :mlat => lat.to_s, :mlon => lon.to_s, :anchor => "#{anchor}&layers=B000FTF"
-    get "/go/" + short_link + "?layers=B000FTF&m"
+    get "/go/#{short_link}?layers=B000FTF&m"
     assert_redirected_to :controller => "site", :action => "index", :mlat => lat.to_s, :mlon => lon.to_s, :anchor => "#{anchor}&layers=B000FTF"
 
     # test with some random query parameters we haven't even implemented yet
-    get "/go/" + short_link + "?foobar=yes"
+    get "/go/#{short_link}?foobar=yes"
     assert_redirected_to :controller => "site", :action => "index", :foobar => "yes", :anchor => anchor
   end
 end