Add --editor-mode flag when invoking rubocop

autoload/ale/fixers/rubocop.vim

@@ -1,6 +1,7 @@
 call ale#Set('ruby_rubocop_options', '')
 call ale#Set('ruby_rubocop_auto_correct_all', 0)
 call ale#Set('ruby_rubocop_executable', 'rubocop')
+call ale#Set('ruby_rubocop_editor_mode', '1')
 
 " Rubocop fixer outputs diagnostics first and then the fixed
 " output. These are delimited by a "=======" string that we
@@ -23,10 +24,12 @@ function! ale#fixers#rubocop#GetCommand(buffer) abort
     let l:executable = ale#Var(a:buffer, 'ruby_rubocop_executable')
     let l:options = ale#Var(a:buffer, 'ruby_rubocop_options')
     let l:auto_correct_all = ale#Var(a:buffer, 'ruby_rubocop_auto_correct_all')
+    let l:editor_mode= ale#Var(a:buffer, 'ruby_rubocop_editor_mode')
 
     return ale#ruby#EscapeExecutable(l:executable, 'rubocop')
     \   . (!empty(l:options) ? ' ' . l:options : '')
     \   . (l:auto_correct_all ? ' --auto-correct-all' : ' --auto-correct')
+    \   . (l:editor_mode ? ' --editor-mode' : '')
     \   . ' --force-exclusion --stdin %s'
 endfunction
 

doc/ale-ruby.txt

@@ -187,6 +187,18 @@ g:ale_ruby_rubocop_auto_correct_all
   This variable can be changed to make rubocop to correct all offenses (unsafe).
 
 
+                                         *ale-options.ruby_rubocop_editor_mode*
+                                               *g:ale_ruby_rubocop_editor_mode*
+                                               *b:ale_ruby_rubocop_editor_mode*
+ruby_rubocop_editor_mode
+g:ale_ruby_rubocop_editor_mode
+  Type: |Number|
+  Default: `1`
+
+  This variable can be changed to 0 to run rubocop without the `--editor-mode`
+  flag (if using RuboCop < v1.61.0).
+
+
 ===============================================================================
 ruby                                                            *ale-ruby-ruby*
 

test/fixers/test_rubocop_fixer_callback.vader

@@ -20,7 +20,7 @@ Execute(The rubocop callback should return the correct default values):
   \ {
   \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_rubocop_executable)
-  \     . ' --auto-correct --force-exclusion --stdin %s',
+  \     . ' --auto-correct --editor-mode --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#rubocop#Fix(bufnr(''))
 
@@ -33,7 +33,7 @@ Execute(The rubocop callback should include custom rubocop options):
   \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_rubocop_executable)
   \     . ' --except Lint/Debugger'
-  \     . ' --auto-correct --force-exclusion --stdin %s',
+  \     . ' --auto-correct --editor-mode --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#rubocop#Fix(bufnr(''))
 
@@ -45,7 +45,7 @@ Execute(The rubocop callback should use auto-correct-all option when set):
   \ {
   \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_rubocop_executable)
-  \     . ' --auto-correct-all --force-exclusion --stdin %s'
+  \     . ' --auto-correct-all --editor-mode --force-exclusion --stdin %s'
   \ },
   \ ale#fixers#rubocop#Fix(bufnr(''))
 
@@ -87,3 +87,15 @@ Execute(The rubocop post-processor should remove diagnostics content):
   \   '         ''forrest'',',
   \   '         ''run'']',
   \ ])
+
+Execute(The rubocop callback should not use editor-mode option when configured not to):
+  let g:ale_ruby_rubocop_editor_mode = 0
+  call ale#test#SetFilename('../test-files/ruby/with_config/dummy.rb')
+
+  AssertEqual
+  \ {
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
+  \   'command': ale#Escape(g:ale_ruby_rubocop_executable)
+  \     . ' --auto-correct-all --force-exclusion --stdin %s'
+  \ },
+  \ ale#fixers#rubocop#Fix(bufnr(''))