Commits on Dec 12, 2020

1. Add ignore_empty_commands setting. …

   Add the `ignore_empty_commands` boolean setting. It defaults to false, which causes an empty command to repeat the last command (the current behavior). If true, an empty command is a no-op.
   
   I want this setting because I frequently press enter a few times in my Rails server terminal (to put a vertical space in the log entries printed to stdout) and then later I try to debug some code in the server. When the debugger line is executed, ByeBug reads those newlines and runs the last command (often continue).
   
   Fixes deivid-rodriguez#700
   
   # Demo
   
   ## When the setting is false
   
   ```
   $ cat ~/.byebugrc
   set histfile /home/gabrielx/byebug.history
   #set ignore_empty_commands true
   $
   $ bundle exec ./test.rb
   
   [3, 12] in /home/gabrielx/projects/byebug/test.rb
       3:
       4: require 'byebug'
       5:
       6: debugger
       7:
   =>  8: sleep 2.1
       9: debugger
      10:
      11: sleep 2.2
      12: debugger
   (byebug) c
   
   [3, 12] in /home/gabrielx/projects/byebug/test.rb
       3:
       4: require 'byebug'
       5:
       6: debugger
       7:
       8: sleep 2.1
       9: debugger
      10:
   => 11: sleep 2.2
      12: debugger
   (byebug)
   
   [21, 30] in /home/gabrielx/.rvm/gems/ruby-2.5.3/gems/bundler-2.2.0.rc.2/lib/bundler/cli.rb
      21:     }.freeze
      22:
      23:     def self.start(*)
      24:       super
      25:     ensure
   => 26:       Bundler::SharedHelpers.print_major_deprecations!
      27:     end
      28:
      29:     def self.dispatch(*)
      30:       super do |i|
   (byebug)
   $
   ```
   
   ### When the setting is true
   ```
   $ cat ~/.byebugrc
   set histfile /home/gabrielx/byebug.history
   set ignore_empty_commands true
   $
   $ bundle exec ./test.rb
   
   [3, 12] in /home/gabrielx/projects/byebug/test.rb
       3:
       4: require 'byebug'
       5:
       6: debugger
       7:
   =>  8: sleep 2.1
       9: debugger
      10:
      11: sleep 2.2
      12: debugger
   (byebug) c
   
   [3, 12] in /home/gabrielx/projects/byebug/test.rb
       3:
       4: require 'byebug'
       5:
       6: debugger
       7:
       8: sleep 2.1
       9: debugger
      10:
   => 11: sleep 2.2
      12: debugger
   (byebug)
   (byebug)
   (byebug) c
   
   [21, 30] in /home/gabrielx/.rvm/gems/ruby-2.5.3/gems/bundler-2.2.0.rc.2/lib/bundler/cli.rb
      21:     }.freeze
      22:
      23:     def self.start(*)
      24:       super
      25:     ensure
   => 26:       Bundler::SharedHelpers.print_major_deprecations!
      27:     end
      28:
      29:     def self.dispatch(*)
      30:       super do |i|
   (byebug)
   (byebug)
   (byebug) c
   $
   ```

   

   gabrieldeal committed Dec 12, 2020
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2. Fix Rubocop offence.

   

   gabrieldeal committed Dec 12, 2020
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