I broke up with neovim....vim is my best friend now

dot_vim/plugged/ale/ale_linters/haskell/stack_build.vim

@@ -0,0 +1,23 @@
+" Author: Jake Zimmerman <jake@zimmerman.io>
+" Description: Like stack-ghc, but for entire projects
+"
+" Note: Ideally, this would *only* typecheck. Right now, it also does codegen.
+" See <https://github.com/commercialhaskell/stack/issues/977>.
+
+call ale#Set('haskell_stack_build_options', '--fast')
+
+function! ale_linters#haskell#stack_build#GetCommand(buffer) abort
+    let l:flags = ale#Var(a:buffer, 'haskell_stack_build_options')
+
+    return 'stack build ' . l:flags
+endfunction
+
+call ale#linter#Define('haskell', {
+\   'name': 'stack_build',
+\   'aliases': ['stack-build'],
+\   'output_stream': 'stderr',
+\   'executable': function('ale#handlers#haskell#GetStackExecutable'),
+\   'command': function('ale_linters#haskell#stack_build#GetCommand'),
+\   'lint_file': 1,
+\   'callback': 'ale#handlers#haskell#HandleGHCFormat',
+\})