Change latex provider to luatex, closes #476

compiler/bibertool.vim

@@ -0,0 +1,26 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+if exists('current_compiler') | finish | endif
+let current_compiler = 'bibertool'
+
+" Older Vim always used :setlocal
+if exists(':CompilerSet') != 2
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=biber\ --nodieonerror\ --noconf\ --nolog\ --output-file=-\ --validate-datamodel\ --tool\ %:S
+
+let &l:errorformat = "%-PINFO - Globbing data source '%f',"
+let &l:errorformat .= '%EERROR - %*[^\,]\, line %l\, %m,'
+let &l:errorformat .= "%WWARN - Datamodel: Entry '%s' (%f): %m,"
+let &l:errorformat .= '%WWARN - Datamodel: %m,'
+let &l:errorformat .= '%-G%.%#'
+silent CompilerSet errorformat
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+endif