Merge pull request #12 from adimit/master

Add a way to make ghc-mod's execution directory customizable

Author: eagletmt

autoload/ghcmod.vim

@@ -403,7 +403,11 @@ function! s:system(...)"{{{
 endfunction"}}}
 
 function! s:plineopen2(...)"{{{
-  lcd `=expand('%:p:h')`
+  if empty(g:ghcmod_use_basedir)
+    lcd `=expand('%:p:h')`
+  else
+    lcd `=g:ghcmod_use_basedir`
+  endif
   let l:ret = call('vimproc#plineopen2', a:000)
   lcd -
   return l:ret

doc/ghcmod.txt

@@ -102,6 +102,16 @@ g:ghcmod_type_highlight                              *g:ghcmod_type_highlight*
 	let ghcmodType ctermbg=yellow
 	let g:ghcmod_type_highlight = 'ghcmodType'
 <
+g:ghcmod_use_basedir                                    *g:ghcmod_use_basedir*
+	The directory to execute ghc-mod from. This can have an effect
+	particularly on template Haskell splices that expect to find certain
+	files in certain places. A good practice in these cases is to make
+	them work from the projects base directory, and open Vim from there.
+>
+	let g:ghcmod_use_basedir = getcwd()
+<
+	If you do not set it, ghcmod will be executed from the folder the file
+	current Haskell file is contained in.
 
 ==============================================================================
 CUSTOMIZE                                                   *ghcmod-customize*