Respect symlinks for resolving vim-polyglot as fallback, closes #605

autoload/polyglot/util.vim

@@ -0,0 +1,64 @@
+" Restore 'cpoptions'
+let s:cpo_save = &cpo
+set cpo&vim
+
+let s:disabled_packages = {}
+let s:new_polyglot_disabled = []
+
+if exists('g:polyglot_disabled')
+  for pkg in g:polyglot_disabled
+    let base = split(pkg, '\.')
+    if len(base) > 0
+      let s:disabled_packages[pkg] = 1
+      call add(s:new_polyglot_disabled, base[0]) 
+    endif
+  endfor
+else
+  let g:polyglot_disabled_not_set = 1
+endif
+
+
+let s:base = expand('<sfile>:p:h:h:h')
+
+func polyglot#util#Filter(idx, val)
+  let val = fnamemodify(a:val . '/', ':p:h')
+  return resolve(val) !=? s:base && stridx(val, $VIMRUNTIME) == -1 && val !~? '/after$'
+endfunc
+
+let s:rtp = join(filter(split(&rtp, ','), function('polyglot#util#Filter')), ',')
+
+func polyglot#util#IsEnabled(type, file)
+  if a:file != "ftdetect"
+    let file = a:file[len(s:base) + 1:]
+    let files = globpath(s:rtp, file, 1, 1)
+    if !empty(files)
+      exec 'source' files[0]
+      return 0
+    endif
+  endif
+  if a:type == "jsx"
+    return !has_key(s:disabled_packages, "jsx") && !has_key(s:disabled_packages, "javascript")
+  endif
+  return !has_key(s:disabled_packages, a:type)
+endfunc
+
+func! polyglot#util#Verify()
+  if exists("g:polyglot_disabled_not_set")
+    if exists("g:polyglot_disabled")
+      echohl WarningMsg
+      echo "vim-polyglot: g:polyglot_disabled should be defined before loading vim-polyglot"
+      echohl None
+    endif
+
+    unlet g:polyglot_disabled_not_set
+  endif
+endfunc
+
+" Save polyglot_disabled without postfixes
+if exists('g:polyglot_disabled')
+  let g:polyglot_disabled = s:new_polyglot_disabled
+endif
+
+" Restore 'cpoptions'
+let &cpo = s:cpo_save
+unlet s:cpo_save