static-http: disable lazy parsing

This only hits if you're crazy enough to use static-http on a
repository with revlogs larger than 1M. Don't do it.

mercurial/revlog.py

@@ -444,7 +444,10 b' class revlog(object):'
         i = ''
         try:
             f = self.opener(self.indexfile)
-            i = f.read(_prereadsize)
+            if "nonlazy" in getattr(self.opener, 'options', {}):
+                i = f.read()
+            else:
+                i = f.read(_prereadsize)
             if len(i) > 0:
                 v = struct.unpack(versionformat, i[:4])[0]
         except IOError, inst:

mercurial/statichttprepo.py

@@ -77,6 +77,7 b' def build_opener(ui, authinfo):'
             return httprangereader(f, urlopener)
         return o
 
+    opener.options = {'nonlazy': 1}
     return opener
 
 class statichttprepository(localrepo.localrepository):