Add --autocomplete / --noautocomplete options

doc/irb/irb.rd.ja

@@ -56,6 +56,8 @@ irbの使い方は, Rubyさえ知っていればいたって簡単です. 基本
                     用しようとする.
   --colorize	    色付けを利用する.
   --nocolorize	    色付けを利用しない.
+  --autocomplete    オートコンプリートを利用する.
+  --noautocomplete  オートコンプリートを利用しない.
   --prompt prompt-mode
   --prompt-mode prompt-mode
 		    プロンプトモードを切替えます. 現在定義されているプ

irb.gemspec

@@ -36,5 +36,5 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = Gem::Requirement.new(">= 2.5")
 
-  spec.add_dependency "reline", ">= 0.2.8.pre.1"
+  spec.add_dependency "reline", ">= 0.2.8.pre.3"
 end

lib/irb.rb

@@ -72,6 +72,8 @@
 #     --nosingleline    Don't use singleline editor module
 #     --colorize        Use colorization
 #     --nocolorize      Don't use colorization
+#     --autocomplete    Use autocompletion
+#     --noautocomplete  Don't use autocompletion
 #     --prompt prompt-mode/--prompt-mode prompt-mode
 #                       Switch prompt mode. Pre-defined prompt modes are
 #                       `default', `simple', `xmp' and `inf-ruby'
@@ -114,6 +116,7 @@
 #     IRB.conf[:USE_SINGLELINE] = nil
 #     IRB.conf[:USE_COLORIZE] = true
 #     IRB.conf[:USE_TRACER] = false
+#     IRB.conf[:USE_AUTOCOMPLETE] = true
 #     IRB.conf[:IGNORE_SIGINT] = true
 #     IRB.conf[:IGNORE_EOF] = false
 #     IRB.conf[:PROMPT_MODE] = :DEFAULT

lib/irb/context.rb

@@ -54,6 +54,7 @@ def initialize(irb, workspace = nil, input_method = nil)
         @use_multiline = nil
       end
       @use_colorize = IRB.conf[:USE_COLORIZE]
+      @use_autocomplete = IRB.conf[:USE_AUTOCOMPLETE]
       @verbose = IRB.conf[:VERBOSE]
       @io = nil
 
@@ -185,6 +186,8 @@ def main
     #
     # A copy of the default <code>IRB.conf[:USE_COLORIZE]</code>
     attr_reader :use_colorize
+    # A copy of the default <code>IRB.conf[:USE_AUTOCOMPLETE]</code>
+    attr_reader :use_autocomplete
     # A copy of the default <code>IRB.conf[:INSPECT_MODE]</code>
     attr_reader :inspect_mode
 
@@ -311,6 +314,8 @@ def main
     alias use_readline? use_singleline
     # Alias for #use_colorize
     alias use_colorize? use_colorize
+    # Alias for #use_autocomplete
+    alias use_autocomplete? use_autocomplete
     # Alias for #rc
     alias rc? rc
     alias ignore_sigint? ignore_sigint

lib/irb/init.rb

@@ -45,6 +45,7 @@ def IRB.init_config(ap_path)
 
     @CONF[:USE_SINGLELINE] = false unless defined?(ReadlineInputMethod)
     @CONF[:USE_COLORIZE] = !ENV['NO_COLOR']
+    @CONF[:USE_AUTOCOMPLETE] = true
     @CONF[:INSPECT_MODE] = true
     @CONF[:USE_TRACER] = false
     @CONF[:USE_LOADER] = false
@@ -274,6 +275,10 @@ def IRB.parse_opts(argv: ::ARGV)
         @CONF[:USE_COLORIZE] = true
       when "--nocolorize"
         @CONF[:USE_COLORIZE] = false
+      when "--autocomplete"
+        @CONF[:USE_AUTOCOMPLETE] = true
+      when "--noautocomplete"
+        @CONF[:USE_AUTOCOMPLETE] = false
       when /^--prompt-mode(?:=(.+))?/, /^--prompt(?:=(.+))?/
         opt = $1 || argv.shift
         prompt_mode = opt.upcase.tr("-", "_").intern

lib/irb/input-method.rb

@@ -295,6 +295,10 @@ def initialize
           end
         end
       Reline.dig_perfect_match_proc = IRB::InputCompletor::PerfectMatchedProc
+      Reline.autocompletion = IRB.conf[:USE_AUTOCOMPLETE]
+      if IRB.conf[:USE_AUTOCOMPLETE]
+        Reline.add_dialog_proc(:show_doc, SHOW_DOC_DIALOG, Reline::DEFAULT_DIALOG_CONTEXT)
+      end
     end
 
     def check_termination(&block)
@@ -361,7 +365,6 @@ def gets
       Reline.output = @stdout
       Reline.prompt_proc = @prompt_proc
       Reline.auto_indent_proc = @auto_indent_proc if @auto_indent_proc
-      Reline.add_dialog_proc(:show_doc, SHOW_DOC_DIALOG, Reline::DEFAULT_DIALOG_CONTEXT)
       if l = readmultiline(@prompt, false, &@check_termination_proc)
         HISTORY.push(l) if !l.empty?
         @line[@line_no += 1] = l + "\n"

lib/irb/lc/help-message

@@ -30,6 +30,8 @@ Usage:  irb.rb [options] [programfile] [arguments]
   --nosingleline    Don't use singleline editor module
   --colorize        Use colorization
   --nocolorize      Don't use colorization
+  --autocomplete    Use autocompletion
+  --noautocomplete  Don't use autocompletion
   --prompt prompt-mode/--prompt-mode prompt-mode
                     Switch prompt mode. Pre-defined prompt modes are
                     `default', `simple', `xmp' and `inf-ruby'

lib/irb/lc/ja/help-message

@@ -29,6 +29,8 @@ Usage:  irb.rb [options] [programfile] [arguments]
   --nosingleline    シングルラインエディタを利用しない.
   --colorize	    色付けを利用する.
   --nocolorize	    色付けを利用しない.
+  --autocomplete    オートコンプリートを利用する.
+  --noautocomplete  オートコンプリートを利用しない.
   --prompt prompt-mode/--prompt-mode prompt-mode
 		    プロンプトモードを切替えます. 現在定義されているプ
 		    ロンプトモードは, default, simple, xmp, inf-rubyが

man/irb.1

@@ -18,6 +18,7 @@
 .Op Fl - Ns Oo no Oc Ns singleline
 .Op Fl - Ns Oo no Oc Ns echo
 .Op Fl - Ns Oo no Oc Ns colorize
+.Op Fl - Ns Oo no Oc Ns autocomplete
 .Op Fl - Ns Oo no Oc Ns verbose
 .Op Fl -prompt Ar mode
 .Op Fl -prompt-mode Ar mode
@@ -118,6 +119,13 @@ Use colorization.
 Don't use colorization.
 .Pp
 .Pp
+.It Fl -autocomplete
+Use autocompletion.
+.Pp
+.It Fl -noautocomplete
+Don't use autocompletion.
+.Pp
+.Pp
 .It Fl -verbose
 Show details.
 .Pp

test/irb/test_context.rb

@@ -159,6 +159,7 @@ def test_eval_object_without_inspect_method
 
     def test_default_config
       assert_equal(true, @context.use_colorize?)
+      assert_equal(true, @context.use_autocomplete?)
     end
 
     def test_assignment_expression

test/irb/yamatanooroti/test_rendering.rb

@@ -29,7 +29,7 @@ def test_launch
       write_irbrc <<~'LINES'
         puts 'start IRB'
       LINES
-      start_terminal(25, 80, %W{ruby -I#{@pwd}/lib -I#{@pwd}/../reline/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
+      start_terminal(25, 80, %W{ruby -I#{@pwd}/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
       write(<<~EOC)
         'Hello, World!'
       EOC
@@ -46,7 +46,7 @@ def test_multiline_paste
       write_irbrc <<~'LINES'
         puts 'start IRB'
       LINES
-      start_terminal(25, 80, %W{ruby -I#{@pwd}/lib -I#{@pwd}/../reline/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
+      start_terminal(25, 80, %W{ruby -I#{@pwd}/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
       write(<<~EOC)
         class A
           def inspect; '#<A>'; end
@@ -85,7 +85,7 @@ def test_evaluate_each_toplevel_statement_by_multiline_paste
       write_irbrc <<~'LINES'
         puts 'start IRB'
       LINES
-      start_terminal(40, 80, %W{ruby -I#{@pwd}/lib -I#{@pwd}/../reline/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
+      start_terminal(40, 80, %W{ruby -I#{@pwd}/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
       write(<<~EOC)
         class A
           def inspect; '#<A>'; end