Simplify things a bit with &.safe

Use the latest and greatest ruby-isms to cut down on some code.

Signed-off-by: Tim Smith <tsmith@chef.io>

4 files changed, 13 insertions, 20 deletions

diff --git a/lib/mixlib/shellout.rb b/lib/mixlib/shellout.rb
index dc186a2..19be8f2 100644
--- a/lib/mixlib/shellout.rb
+++ b/lib/mixlib/shellout.rb
@@ -248,7 +248,7 @@ module Mixlib
     # running or died without setting an exit status (e.g., terminated by
     # `kill -9`).
     def exitstatus
-      @status && @status.exitstatus
+      @status&.exitstatus
     end
 
     # Run the command, writing the command's standard out and standard error
diff --git a/lib/mixlib/shellout/unix.rb b/lib/mixlib/shellout/unix.rb
index b8f42e0..5900302 100644
--- a/lib/mixlib/shellout/unix.rb
+++ b/lib/mixlib/shellout/unix.rb
@@ -370,11 +370,11 @@ module Mixlib
         return if attempt_reap
 
         @terminate_reason = "Command exceeded allowed execution time, process terminated"
-        logger.error("Command exceeded allowed execution time, sending TERM") if logger
+        logger&.error("Command exceeded allowed execution time, sending TERM")
         Process.kill(:TERM, child_pgid)
         sleep 3
         attempt_reap
-        logger.error("Command exceeded allowed execution time, sending KILL") if logger
+        logger&.error("Command exceeded allowed execution time, sending KILL")
         Process.kill(:KILL, child_pgid)
         reap
 
diff --git a/lib/mixlib/shellout/windows.rb b/lib/mixlib/shellout/windows.rb
index 7ece3d1..822d8a6 100644
--- a/lib/mixlib/shellout/windows.rb
+++ b/lib/mixlib/shellout/windows.rb
@@ -89,7 +89,7 @@ module Mixlib
           # Start the process
           #
           process, profile, token = Process.create3(create_process_args)
-          logger.debug(format_process(process, app_name, command_line, timeout)) if logger
+          logger&.debug(format_process(process, app_name, command_line, timeout))
           begin
             # Start pushing data into input
             stdin_write << input if input
@@ -124,7 +124,7 @@ module Mixlib
                     kill_process_tree(process.process_id, wmi, logger)
                     Process.kill(:KILL, process.process_id)
                   rescue SystemCallError
-                    logger.warn("Failed to kill timed out process #{process.process_id}") if logger
+                    logger&.warn("Failed to kill timed out process #{process.process_id}")
                   end
 
                   raise Mixlib::ShellOut::CommandTimeout, [
@@ -398,20 +398,16 @@ module Mixlib
 
       def kill_process(instance, logger)
         child_pid = instance.wmi_ole_object.processid
-        if logger
-          logger.debug([
+        logger&.debug([
             "killing child process #{child_pid}::",
             "#{instance.wmi_ole_object.Name} of parent #{pid}",
           ].join)
-        end
         Process.kill(:KILL, instance.wmi_ole_object.processid)
       rescue SystemCallError
-        if logger
-          logger.debug([
+        logger&.debug([
             "Failed to kill child process #{child_pid}::",
             "#{instance.wmi_ole_object.Name} of parent #{pid}",
           ].join)
-        end
       end
 
       def format_process(process, app_name, command_line, timeout)
diff --git a/lib/mixlib/shellout/windows/core_ext.rb b/lib/mixlib/shellout/windows/core_ext.rb
index 621efb9..1c2830b 100644
--- a/lib/mixlib/shellout/windows/core_ext.rb
+++ b/lib/mixlib/shellout/windows/core_ext.rb
@@ -21,7 +21,6 @@ require "win32/process"
 
 # Add new constants for Logon
 module Process::Constants
-  private
 
   LOGON32_LOGON_INTERACTIVE = 0x00000002
   LOGON32_LOGON_BATCH = 0x00000004
@@ -148,15 +147,13 @@ module Process
       si_hash = {}
 
       # If the startup_info key is present, validate its subkeys
-      if hash["startup_info"]
-        hash["startup_info"].each do |key, val|
-          key = key.to_s.downcase
-          unless valid_si_keys.include?(key)
-            raise ArgumentError, "invalid startup_info key '#{key}'"
-          end
-
-          si_hash[key] = val
+      hash["startup_info"]&.each do |key, val|
+        key = key.to_s.downcase
+        unless valid_si_keys.include?(key)
+          raise ArgumentError, "invalid startup_info key '#{key}'"
         end
+
+        si_hash[key] = val
       end
 
       # The +command_line+ key is mandatory unless the +app_name+ key