util.datamanager: Make the util.pposix dependency optional.

diff --git a/util/datamanager.lua b/util/datamanager.lua
index 17c614edd8bb0cb5398d1189cb5d0615ddc54c5a..e6ad86dbff1c2a8f21360ac93f3ce2146e6fcd03 100644 (file)
--- a/util/datamanager.lua
+++ b/util/datamanager.lua
@@ -25,28 +25,23 @@ local serialize = require "util.serialization".serialize;
 local path_separator = assert ( package.config:match ( "^([^\n]+)" ) , "package.config not in standard form" ) -- Extract directory seperator from package.config (an undocumented string that comes with lua)
 local lfs = require "lfs";
 local prosody = prosody;
-local raw_mkdir;
-local fallocate;
-
-if prosody.platform == "posix" then
-       raw_mkdir = require "util.pposix".mkdir; -- Doesn't trample on umask
-       fallocate = require "util.pposix".fallocate;
-else
-       raw_mkdir = lfs.mkdir;
-end
 
-if not fallocate then -- Fallback
-       function fallocate(f, offset, len)
-               -- This assumes that current position == offset
-               local fake_data = (" "):rep(len);
-               local ok, msg = f:write(fake_data);
-               if not ok then
-                       return ok, msg;
-               end
-               f:seek("set", offset);
-               return true;
+local raw_mkdir = lfs.mkdir;
+local function fallocate(f, offset, len)
+       -- This assumes that current position == offset
+       local fake_data = (" "):rep(len);
+       local ok, msg = f:write(fake_data);
+       if not ok then
+               return ok, msg;
        end
-end
+       f:seek("set", offset);
+       return true;
+end;
+pcall(function()
+       local pposix = require "util.pposix";
+       raw_mkdir = pposix.mkdir or raw_mkdir; -- Doesn't trample on umask
+       fallocate = pposix.fallocate or fallocate;
+end);
 
 module "datamanager"