Print the fetching repodata dot after the repodata is fetched

Previously it was printed when the connection was initialized, which isn't
very helpful when ten connections are initialized at once.

conda/fetch.py

@@ -17,6 +17,7 @@
 import sys
 import getpass
 import warnings
+from functools import wraps
 
 from conda import config
 from conda.utils import memoized
@@ -52,10 +53,21 @@ def add_http_value_to_dict(u, http_key, d, dict_key):
     if value:
         d[dict_key] = value
 
+# We need a decorator so that the dot gets printed *after* the repodata is fetched
+class dotlog_on_return(object):
+    def __init__(self, msg):
+        self.msg = msg
 
-def fetch_repodata(url, cache_dir=None, use_cache=False, session=None):
-    dotlog.debug("fetching repodata: %s ..." % url)
+    def __call__(self, f):
+        @wraps(f)
+        def func(*args, **kwargs):
+            res = f(*args, **kwargs)
+            dotlog.debug("%s args %s kwargs %s" % (self.msg, args, kwargs))
+            return res
+        return func
 
+@dotlog_on_return("fetching repodata:")
+def fetch_repodata(url, cache_dir=None, use_cache=False, session=None):
     if not config.ssl_verify:
         try:
             from requests.packages.urllib3.connectionpool import InsecureRequestWarning