Merge pull request ESCOMP#196 from johnpaulalex/readmod

Remove printlog from read_gitmodules_file 

...since read_externals_description_file() already has a nearly-the-same printlog (but add it to the other caller).

Also mark it private (leading underscore) because it is not called from outside the module.

User interface changes?: No

Fixes: None

Testing:
test removed: none
unit tests: none
system tests: reran python -m unittest test.test_sys_checkout.TestSubrepoCheckout.test_submodule_checkout_bare, which had the duplicate printlog behavior.
manual testing:

manic/externals_description.py

@@ -88,7 +88,7 @@ def read_externals_description_file(root_dir, file_name):
 
     externals_description = None
     if file_name == ExternalsDescription.GIT_SUBMODULES_FILENAME:
-        externals_description = read_gitmodules_file(root_dir, file_name)
+        externals_description = _read_gitmodules_file(root_dir, file_name)
     else:
         try:
             config = config_parser()
@@ -191,7 +191,7 @@ def parse_submodules_desc_section(section_items, file_path):
 
     return path, url
 
-def read_gitmodules_file(root_dir, file_name):
+def _read_gitmodules_file(root_dir, file_name):
     # pylint: disable=deprecated-method
     # Disabling this check because the method is only used for python2
     # pylint: disable=too-many-locals
@@ -203,12 +203,11 @@ def read_gitmodules_file(root_dir, file_name):
     root_dir = os.path.abspath(root_dir)
     msg = 'In directory : {0}'.format(root_dir)
     logging.info(msg)
-    printlog('Processing submodules description file : {0}'.format(file_name))
 
     file_path = os.path.join(root_dir, file_name)
     if not os.path.exists(file_name):
         msg = ('ERROR: submodules description file, "{0}", does not '
-               'exist at path:\n    {1}'.format(file_name, file_path))
+               'exist in dir:\n    {1}'.format(file_name, root_dir))
         fatal_error(msg)
 
     submodules_description = None
@@ -640,8 +639,11 @@ def _repo_config_from_submodule(self, field, submod_desc):
                        '       Parent repo, "{1}" does not have submodules')
                 fatal_error(msg.format(field, self._parent_repo.name()))
 
-            submod_file = read_gitmodules_file(repo_path, submod_file)
-            submod_desc = create_externals_description(submod_file)
+            printlog(
+                'Processing submodules description file : {0} ({1})'.format(
+                    submod_file, repo_path))
+            submod_model_data= _read_gitmodules_file(repo_path, submod_file)
+            submod_desc = create_externals_description(submod_model_data)
 
         # Can we find our external?
         repo_url = None