require Ruby 2.3+

This allows us to jettison a bunch of compatibility code since
we've started using Etc.nprocessors and String#- (uminus) in
more places.  The Ruby core team doesn't support <= 2.5, even.

1 files changed, 2 insertions, 11 deletions

diff --git a/lib/dtas.rb b/lib/dtas.rb
index 1eac704..eb8f49d 100644
--- a/lib/dtas.rb
+++ b/lib/dtas.rb
@@ -1,4 +1,4 @@
-# Copyright (C) 2013-2020 all contributors <dtas-all@nongnu.org>
+# Copyright (C) all contributors <dtas-all@nongnu.org>
 # License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
 # frozen_string_literal: true
 
@@ -9,15 +9,8 @@ module DTAS
   # try to use the monotonic clock in Ruby >= 2.1, it is immune to clock
   # offset adjustments and generates less garbage (Float vs Time object)
   # :stopdoc:
-  begin
+  def self.now # :nodoc:
     ::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
-    def self.now # :nodoc:
-      ::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
-    end
-  rescue NameError, NoMethodError
-    def self.now # :nodoc:
-      Time.now.to_f # Ruby <= 2.0
-    end
   end
 
   @null = nil
@@ -48,7 +41,5 @@ module DTAS
   # :startdoc:
 end
 
-require_relative 'dtas/compat_onenine'
-require_relative 'dtas/spawn_fix'
 require_relative 'dtas/encoding'
 DTAS.extend(DTAS::Encoding)