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"""Copyright 2021 The GNU Radio Contributors
This file is part of GNU Radio
SPDX-License-Identifier: GPL-2.0-or-later
"""
import os
from os.path import expanduser, normpath, expandvars, exists
from collections import OrderedDict
from . import Constants
class Config(object):
name = 'GNU Radio Companion (no gui)'
license = __doc__.strip()
website = 'https://www.gnuradio.org/'
hier_block_lib_dir = os.environ.get(
'GRC_HIER_PATH', Constants.DEFAULT_HIER_BLOCK_LIB_DIR)
def __init__(self, version, version_parts=None, name=None, prefs=None):
self._gr_prefs = prefs if prefs else DummyPrefs()
self.version = version
self.version_parts = version_parts or version[1:].split(
'-', 1)[0].split('.')[:3]
self.enabled_components = self._gr_prefs.get_string(
'grc', 'enabled_components', '')
if name:
self.name = name
@property
def block_paths(self):
paths_sources = (
self.hier_block_lib_dir,
os.environ.get('GRC_BLOCKS_PATH', ''),
self._gr_prefs.get_string('grc', 'local_blocks_path', ''),
self._gr_prefs.get_string('grc', 'global_blocks_path', ''),
)
collected_paths = sum((paths.split(os.pathsep)
for paths in paths_sources), [])
valid_paths = [normpath(expanduser(expandvars(path)))
for path in collected_paths if exists(path)]
# Deduplicate paths to avoid warnings about finding blocks twice, but
# preserve order of paths
valid_paths = list(OrderedDict.fromkeys(valid_paths))
return valid_paths
@property
def default_flow_graph(self):
user_default = (
os.environ.get('GRC_DEFAULT_FLOW_GRAPH') or
self._gr_prefs.get_string('grc', 'default_flow_graph', '') or
os.path.join(self.hier_block_lib_dir, 'default_flow_graph.grc')
)
return user_default if exists(user_default) else Constants.DEFAULT_FLOW_GRAPH
class DummyPrefs(object):
def get_string(self, category, item, default):
return str(default)
def set_string(self, category, item, value):
pass
def get_long(self, category, item, default):
return int(default)
def save(self):
pass
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