crude progress bar implementation

overviewer.py

@@ -40,6 +40,7 @@ from overviewer_core import textures
 from overviewer_core import optimizeimages, world
 from overviewer_core import configParser, tileset, assetmanager, dispatcher
 from overviewer_core import cache
+from overviewer_core import progressbar
 
 helptext = """
 %prog [--rendermodes=...] [options] <World> <Output Dir>
@@ -407,7 +408,17 @@ dir but you forgot to put quotes around the directory, since it contains spaces.
             percent = int(100* completed/total)
             logging.info("Rendered %d of %d.  %d%% complete", completed, total, percent)
 
-    dispatch.render_all(tilesets, print_status)
+    def update_pbar(phase, completed, total):
+        if total is None or total == 0:
+            print_status(phase, completed, total)
+        else:
+            pbar = progressbar.ProgressBar(
+                widgets=['Rendering: ', progressbar.FractionWidget(), ' (',
+                    progressbar.Percentage(), ') ',
+                    progressbar.Bar(left='[', right=']'), ' ', progressbar.ETA()],
+                maxval=total).start().update(completed)
+
+    dispatch.render_all(tilesets, update_pbar)
     dispatch.close()
 
     assetMrg.finalize(tilesets)