use `bundle exec rubocop` when necessary

1 files changed, 18 insertions, 0 deletions

diff --git a/vimrc b/vimrc
index 2b1978d..405b5b5 100644
--- a/vimrc
+++ b/vimrc
@@ -660,6 +660,24 @@ let g:ale_linters = {
 \}
 
 let g:ale_rust_cargo_use_check = 1
+
+function! s:rubocop_in_bundler()
+    let gemfiles = glob("*.gemspec", 1, 1)
+    if filereadable("Gemfile")
+        let gemfiles += ["Gemfile"]
+    endif
+    for file in gemfiles
+        for line in readfile(file)
+            if line =~ 'gem.*rubocop'
+                return 1
+            endif
+        endfor
+    endfor
+    return 0
+endfunction
+if s:rubocop_in_bundler()
+    let g:ale_ruby_rubocop_executable = 'bundle'
+endif
 " }}}
 " airline
 " commentary {{{