Rubocop fixes for ruby 2.5

.rubocop.yml

@@ -1,7 +1,7 @@
 inherit_from: .rubocop_todo.yml
 
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRubyVersion: 2.5
 
 Rails:
   Enabled: true

app/controllers/geocoder_controller.rb

@@ -17,11 +17,11 @@ class GeocoderController < ApplicationController
       @sources.push "osm_nominatim_reverse"
       @sources.push "geonames_reverse" if Settings.key?(:geonames_username)
     elsif @params[:query]
-      if @params[:query] =~ /^\d{5}(-\d{4})?$/
+      if /^\d{5}(-\d{4})?$/.match?(@params[:query])
         @sources.push "osm_nominatim"
-      elsif @params[:query] =~ /^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i
+      elsif /^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i.match?(@params[:query])
         @sources.push "osm_nominatim"
-      elsif @params[:query] =~ /^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i
+      elsif /^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i.match?(@params[:query])
         @sources.push "ca_postcode"
         @sources.push "osm_nominatim"
       else

app/helpers/browse_tags_helper.rb

@@ -120,7 +120,7 @@ module BrowseTagsHelper
     #
     # Also accepting / as a visual separator although not given in RFC 3966,
     # because it is used as a visual separator in OSM data in some countries.
-    if value =~ %r{^\s*\+[\d\s\(\)/\.-]{6,25}\s*(;\s*\+[\d\s\(\)/\.-]{6,25}\s*)*$}
+    if %r{^\s*\+[\d\s\(\)/\.-]{6,25}\s*(;\s*\+[\d\s\(\)/\.-]{6,25}\s*)*$}.match?(value)
       return value.split(";").map do |phone_number|
         # for display, remove leading and trailing whitespace
         phone_number = phone_number.strip

app/models/language.rb

@@ -15,7 +15,6 @@ class Language < ActiveRecord::Base
   def self.load(file)
     Language.transaction do
       YAML.safe_load(File.read(file)).each do |k, v|
-        begin
         Language.update(k, :english_name => v["english"], :native_name => v["native"])
       rescue ActiveRecord::RecordNotFound
         Language.create do |l|
@@ -26,7 +25,6 @@ class Language < ActiveRecord::Base
       end
     end
   end
-  end
 
   def name
     name = english_name

bin/yarn

@@ -1,11 +1,9 @@
 #!/usr/bin/env ruby
 APP_ROOT = File.expand_path("..", __dir__)
 Dir.chdir(APP_ROOT) do
-  begin
   exec "yarnpkg", *ARGV
-  rescue Errno::ENOENT
+rescue Errno::ENOENT
   warn "Yarn executable was not detected in the system."
   warn "Download Yarn at https://yarnpkg.com/en/docs/install"
   exit 1
-  end
 end

lib/password_hash.rb

@@ -18,7 +18,7 @@ module PasswordHash
   def self.check(hash, salt, candidate)
     if salt.nil?
       candidate = Digest::MD5.hexdigest(candidate)
-    elsif salt =~ /!/
+    elsif /!/.match?(salt)
       algorithm, iterations, salt = salt.split("!")
       size = Base64.strict_decode64(hash).length
       candidate = self.hash(candidate, salt, iterations.to_i, size, algorithm)
@@ -32,7 +32,7 @@ module PasswordHash
   def self.upgrade?(hash, salt)
     if salt.nil?
       return true
-    elsif salt =~ /!/
+    elsif /!/.match?(salt)
       algorithm, iterations, salt = salt.split("!")
       return true if Base64.strict_decode64(salt).length != SALT_BYTE_SIZE
       return true if Base64.strict_decode64(hash).length != HASH_BYTE_SIZE

test/controllers/api/changesets_controller_test.rb

@@ -165,14 +165,12 @@ module Api
     # check that a changeset that doesn't exist returns an appropriate message
     def test_show_not_found
       [0, -32, 233455644, "afg", "213"].each do |id|
-        begin
         get :show, :params => { :id => id }
         assert_response :not_found, "should get a not found"
       rescue ActionController::UrlGenerationError => ex
         assert_match(/No route matches/, ex.to_s)
       end
     end
-    end
 
     ##
     # test that the user who opened a change can close it
@@ -239,25 +237,21 @@ module Api
 
       # First try to do it with no auth
       cs_ids.each do |id|
-        begin
         put :close, :params => { :id => id }
         assert_response :unauthorized, "Shouldn't be able close the non-existant changeset #{id}, when not authorized"
       rescue ActionController::UrlGenerationError => ex
         assert_match(/No route matches/, ex.to_s)
       end
-      end
 
       # Now try with auth
       basic_authorization create(:user).email, "test"
       cs_ids.each do |id|
-        begin
         put :close, :params => { :id => id }
         assert_response :not_found, "The changeset #{id} doesn't exist, so can't be closed"
       rescue ActionController::UrlGenerationError => ex
         assert_match(/No route matches/, ex.to_s)
       end
     end
-    end
 
     ##
     # upload something simple, but valid and check that it can

test/models/message_test.rb

@@ -53,7 +53,6 @@ class MessageTest < ActiveSupport::TestCase
                          "\x82\x82",     # multibyte continuations without multibyte identifier
                          "\xe1\x82\x4a"] # three-byte identifier, contination and (incorrectly) plain ASCII
     invalid_sequences.each do |char|
-      begin
       # create a message and save to the database
       msg = make_message(char, 1)
       # if the save throws, thats fine and the test should pass, as we're
@@ -68,7 +67,6 @@ class MessageTest < ActiveSupport::TestCase
       assert_equal ex.to_s, "invalid byte sequence in UTF-8"
     end
   end
-  end
 
   def test_from_mail_plain
     sender_user = create(:user)