def _check_tmpdir(tmpdir):
if not os.path.exists(tmpdir):
os.mkdir(tmpdir)
else:
if not os.path.isdir(tmpdir):
raise EnosFilePathError("%s is not a directory" % tmpdir)
else:
pass
def _set_resultdir(name=None):
"""Set or get the directory to store experiment results.
Looks at the `name` and create the directory if it doesn"t exist
or returns it in other cases. If the name is `None`, then the
function generates an unique name for the results directory.
Finally, it links the directory to `SYMLINK_NAME`.
Args:
name (str): file path to an existing directory. It could be
weather an absolute or a relative to the current working
directory.
Returns:
the file path of the results directory.
"""
# Compute file path of results directory
resultdir_name = name or "enos_" + datetime.today().isoformat()
resultdir_path = os.path.abspath(resultdir_name)
# Raise error if a related file exists
if os.path.isfile(resultdir_path):
raise EnosFilePathError(
resultdir_path,
"Result directory cannot be created due "
"to existing file %s" % resultdir_path,
)
# Create the result directory if it does not exist
if not os.path.isdir(resultdir_path):
os.mkdir(resultdir_path)
logger.info("Generate results directory %s" % resultdir_path)
# Symlink the result directory with the "cwd/current" directory
link_path = SYMLINK_NAME
if os.path.lexists(link_path):
os.remove(link_path)
try:
os.symlink(resultdir_path, link_path)
logger.info("Symlink %s to %s" % (resultdir_path, link_path))
except OSError:
# An harmless error can occur due to a race condition when
# multiple regions are simultaneously deployed
logger.warning("Symlink %s to %s failed" % (resultdir_path, link_path))
return resultdir_path