Fix rubocop styles

.rubocop.yml

@@ -2,6 +2,7 @@ inherit_from: .rubocop_todo.yml
 
 AllCops:
   DisplayCopNames: true
+  TargetRubyVersion: 2.2
 
 Style/Documentation:
   Exclude:

Rakefile

@@ -10,7 +10,7 @@ end
 
 RSpec::Core::RakeTask.new(:spec)
 
-task :default => [:clobber, :compile, :docker, :spec]
+task :default => %i[clobber compile docker spec]
 
 desc 'Build docker image for integration test'
 task :docker do

example/local_forward.rb

@@ -1,8 +1,6 @@
 #!/usr/bin/env ruby
 require 'libssh'
 require 'socket'
-require 'thread'
-
 GC.stress = true
 
 ssh_host = 'rossmann'
@@ -37,8 +35,7 @@
           loop do
             channel.write(socket.readpartial(bufsiz))
           end
-        # rubocop:disable Lint/HandleExceptions
-        rescue EOFError
+        rescue EOFError # rubocop:disable Lint/HandleExceptions
         end
         channel.send_eof
       end

example/sshkit.rb

@@ -15,7 +15,7 @@
 SSHKit.config.output = SSHKit::Formatter::Pretty.new($stdout)
 SSHKit.config.output_verbosity = :debug
 
-include SSHKit::DSL
+include SSHKit::DSL # rubocop:disable Style/MixinUsage
 
 on %w[barkhorn rossmann], in: :parallel do |host|
   date = capture(:date)
@@ -24,7 +24,7 @@
 
 on %w[barkhorn rossmann], in: :parallel do
   execute :ruby, '-e', Shellwords.escape('puts "stdout"; $stderr.puts "stderr"')
-  execute :false, raise_on_non_zero_exit: false
+  execute :false, raise_on_non_zero_exit: false # rubocop:disable Lint/BooleanSymbol
 end
 
 on %w[barkhorn rossmann], in: :parallel do |host|

lib/libssh/version.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
+
 module LibSSH
   # The version of libssh gem.
-  VERSION = '0.4.0'
+  VERSION = '0.4.0'.freeze
 end

lib/sshkit/backends/libssh.rb

@@ -56,8 +56,7 @@ def upload!(local, remote, _options = {})
                 loop do
                   scp.write(io.readpartial(BUFSIZ))
                 end
-              # rubocop:disable Lint/HandleExceptions
-              rescue EOFError
+              rescue EOFError # rubocop:disable Lint/HandleExceptions
               end
             end
           end
@@ -143,7 +142,7 @@ def execute_command(cmd)
       def wrap_local_reader(local)
         if local.respond_to?(:read)
           # local is IO-like object
-          yield(local, 0644)
+          yield(local, 0o644)
         else
           File.open(local, 'rb') do |f|
             yield(f, File.stat(local).mode & 0xfff)
@@ -217,7 +216,7 @@ def configure_session(session, ssh_options)
           when true
             # Load from default ssh_config
             session.parse_config
-          when false, nil
+          when false, nil # rubocop:disable Lint/EmptyWhen
             # Don't load from ssh_config
           else
             # Load from specified path

libssh.gemspec

@@ -1,4 +1,4 @@
-# coding: utf-8
+
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'libssh/version'

spec/integration/session_spec.rb

@@ -57,7 +57,7 @@
       end
 
       it 'returns available methods' do
-        expect(session.userauth_list).to match_array([:publickey, :password])
+        expect(session.userauth_list).to match_array(%i[publickey password])
       end
     end
   end

spec/spec_helper.rb

@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'English'
 require 'fileutils'
 require 'json'
@@ -22,7 +23,7 @@ def start
 
     def stop
       unless system('docker', 'stop', '-t', '0', @container_id, out: File::NULL)
-        $stderr.puts "[WARN] Cannot stop Docker container #{@container_id}"
+        warn "Cannot stop Docker container #{@container_id}"
       end
     end