import os
from mpas_tools.config import MpasConfigParser
[docs]
class CompassConfigParser(MpasConfigParser):
"""
A "meta" config parser that keeps a dictionary of config parsers and their
sources to combine when needed. The custom config parser allows provenance
of the source of different config options and allows the "user" config
options to always take precedence over other config options (even if they
are added later).
This version simply overrides the ``combine()`` method to also ensure that
certain paths are absolute, rather than relative.
"""
def combine(self, raw=False):
"""
Combine the config files into one
Parameters
----------
raw : bool, optional
Whether to combine config "raw" config options, rather than using
extended interpolation
"""
super().combine(raw=raw)
self._ensure_absolute_paths()
def _ensure_absolute_paths(self):
"""
make sure all paths in the paths, namelists, streams, and executables
sections are absolute paths
"""
config = self.combined
for section in ['paths', 'namelists', 'streams', 'executables']:
if not config.has_section(section):
continue
for option, value in config.items(section):
# not safe to make paths that start with other config options
# into absolute paths
if not value.startswith('$'):
value = os.path.abspath(value)
config.set(section, option, value)