1
|
2
|
import io
|
2
|
2
|
import json
|
3
|
2
|
from pathlib import Path
|
4
|
|
|
5
|
2
|
from dynaconf import default_settings
|
6
|
2
|
from dynaconf.constants import JSON_EXTENSIONS
|
7
|
2
|
from dynaconf.loaders.base import BaseLoader
|
8
|
2
|
from dynaconf.utils import object_merge
|
9
|
2
|
from dynaconf.utils.parse_conf import try_to_encode
|
10
|
|
|
11
|
|
try: # pragma: no cover
|
12
|
|
import commentjson
|
13
|
|
except ImportError: # pragma: no cover
|
14
|
|
commentjson = None
|
15
|
|
|
16
|
|
|
17
|
2
|
def load(obj, env=None, silent=True, key=None, filename=None):
|
18
|
|
"""
|
19
|
|
Reads and loads in to "obj" a single key or all keys from source file.
|
20
|
|
|
21
|
|
:param obj: the settings instance
|
22
|
|
:param env: settings current env default='development'
|
23
|
|
:param silent: if errors should raise
|
24
|
|
:param key: if defined load a single key, else load all in env
|
25
|
|
:param filename: Optional custom filename to load
|
26
|
|
:return: None
|
27
|
|
"""
|
28
|
|
if (
|
29
|
|
obj.get("COMMENTJSON_ENABLED_FOR_DYNACONF") and commentjson
|
30
|
|
): # pragma: no cover # noqa
|
31
|
|
file_reader = commentjson.load
|
32
|
|
string_reader = commentjson.loads
|
33
|
|
else:
|
34
|
2
|
file_reader = json.load
|
35
|
2
|
string_reader = json.loads
|
36
|
|
|
37
|
2
|
loader = BaseLoader(
|
38
|
|
obj=obj,
|
39
|
|
env=env,
|
40
|
|
identifier="json",
|
41
|
|
extensions=JSON_EXTENSIONS,
|
42
|
|
file_reader=file_reader,
|
43
|
|
string_reader=string_reader,
|
44
|
|
)
|
45
|
2
|
loader.load(filename=filename, key=key, silent=silent)
|
46
|
|
|
47
|
|
|
48
|
2
|
def write(settings_path, settings_data, merge=True):
|
49
|
|
"""Write data to a settings file.
|
50
|
|
|
51
|
|
:param settings_path: the filepath
|
52
|
|
:param settings_data: a dictionary with data
|
53
|
|
:param merge: boolean if existing file should be merged with new data
|
54
|
|
"""
|
55
|
2
|
settings_path = Path(settings_path)
|
56
|
|
if settings_path.exists() and merge: # pragma: no cover
|
57
|
|
with io.open(
|
58
|
|
str(settings_path), encoding=default_settings.ENCODING_FOR_DYNACONF
|
59
|
|
) as open_file:
|
60
|
|
object_merge(json.load(open_file), settings_data)
|
61
|
|
|
62
|
2
|
with io.open(
|
63
|
|
str(settings_path),
|
64
|
|
"w",
|
65
|
|
encoding=default_settings.ENCODING_FOR_DYNACONF,
|
66
|
|
) as open_file:
|
67
|
2
|
json.dump(settings_data, open_file, cls=DynaconfEncoder)
|
68
|
|
|
69
|
|
|
70
|
2
|
class DynaconfEncoder(json.JSONEncoder):
|
71
|
|
"""Transform Dynaconf custom types instances to json representation"""
|
72
|
|
|
73
|
2
|
def default(self, o):
|
74
|
2
|
return try_to_encode(o, callback=super().default)
|