home: vim: add 'after'

home/vim/after/ftplugin/haskell.vim

@@ -0,0 +1,30 @@
+" Create the `b:undo_ftplugin` variable if it doesn't exist
+call ftplugined#check_undo_ft()
+
+" Use a small indentation value on Haskell files
+setlocal shiftwidth=2
+let b:undo_ftplugin.='|setlocal shiftwidth<'
+
+" Use my desired ALE fixers for Haskell
+let b:ale_fixers=[ 'brittany' ]
+let b:undo_ftplugin.='|unlet! b:ale_fixers'
+
+" Use stack-managed `hlint`
+let b:ale_haskell_hlint_executable='stack'
+let b:undo_ftplugin.='|unlet! b:ale_haskell_hlint_executable'
+
+" Use stack-managed `brittany`
+let b:ale_haskell_brittany_executable='stack'
+let b:undo_ftplugin.='|unlet! b:ale_haskell_brittany_executable'
+
+" Use dynamic libraries because of Arch linux, with default ALE options
+let b:ale_haskell_ghc_options='--dynamic -fno-code -v0'
+let b:undo_ftplugin.='|unlet! b:ale_haskell_ghc_options'
+
+" Automatically format files when saving them
+let b:ale_fix_on_save=1
+let b:undo_ftplugin='|unlet! b:ale_lint_on_save'
+
+" Change max length of a line to 100 for this buffer to match official guidelines
+setlocal colorcolumn=100
+let b:undo_ftplugin.='|setlocal colorcolumn<'