Replace functions in utils with oslo.fileutils

The following functions have moved to oslo.
remove_path_on_error
file_open
delete_if_exists

Replaced/removed overlapping functions with the ones in fileutils

Change-Id: I41a19d76a777b6f899843bb0cc0582630accbd5c

1 files changed, 0 insertions, 37 deletions

diff --git a/nova/utils.py b/nova/utils.py
index 9067488d5..41d18b3cb 100644
--- a/nova/utils.py
+++ b/nova/utils.py
@@ -21,7 +21,6 @@
 
 import contextlib
 import datetime
-import errno
 import functools
 import hashlib
 import inspect
@@ -439,18 +438,6 @@ def to_bytes(text, default=0):
         return default
 
 
-def delete_if_exists(pathname):
-    """delete a file, but ignore file not found error."""
-
-    try:
-        os.unlink(pathname)
-    except OSError as e:
-        if e.errno == errno.ENOENT:
-            return
-        else:
-            raise
-
-
 def get_from_path(items, path):
     """Returns a list of items matching the specified path.
 
@@ -733,18 +720,6 @@ def timefunc(func):
     return inner
 
 
-@contextlib.contextmanager
-def remove_path_on_error(path):
-    """Protect code that wants to operate on PATH atomically.
-    Any exception will cause PATH to be removed.
-    """
-    try:
-        yield
-    except Exception:
-        with excutils.save_and_reraise_exception():
-            delete_if_exists(path)
-
-
 def make_dev_path(dev, partition=None, base='/dev'):
     """Return a path to a particular device.
 
@@ -803,18 +778,6 @@ def read_cached_file(filename, cache_info, reload_func=None):
     return cache_info['data']
 
 
-def file_open(*args, **kwargs):
-    """Open file
-
-    see built-in file() documentation for more details
-
-    Note: The reason this is kept in a separate module is to easily
-          be able to provide a stub module that doesn't alter system
-          state at all (for unit tests)
-    """
-    return file(*args, **kwargs)
-
-
 def hash_file(file_like_object):
     """Generate a hash for the contents of a file."""
     checksum = hashlib.sha1()