borgmatic/tests/unit/config/test_env_variables.py
Sébastien MB 97b5cd089d Allow environment variable resolution in configuration file
- all string fields containing an environment variable like ${FOO} will
  be resolved
- supported format ${FOO}, ${FOO:-bar} and ${FOO-bar} to allow default
  values if variable is not present in environment
- add --no-env argument for CLI to disable the feature which is enabled
  by default

Resolves: #546
2022-06-16 18:52:54 +02:00

69 lines
2.1 KiB
Python

import pytest
from borgmatic.config import override as module
def test_env(monkeypatch):
monkeypatch.setenv("MY_CUSTOM_VALUE", "foo")
config = {'key': 'Hello $MY_CUSTOM_VALUE'}
module.resolve_env_variables(config)
assert config == {'key': 'Hello $MY_CUSTOM_VALUE'}
def test_env_braces(monkeypatch):
monkeypatch.setenv("MY_CUSTOM_VALUE", "foo")
config = {'key': 'Hello ${MY_CUSTOM_VALUE}'}
module.resolve_env_variables(config)
assert config == {'key': 'Hello foo'}
def test_env_default_value(monkeypatch):
monkeypatch.delenv("MY_CUSTOM_VALUE", raising=False)
config = {'key': 'Hello ${MY_CUSTOM_VALUE:-bar}'}
module.resolve_env_variables(config)
assert config == {'key': 'Hello bar'}
def test_env_unknown(monkeypatch):
monkeypatch.delenv("MY_CUSTOM_VALUE", raising=False)
config = {'key': 'Hello ${MY_CUSTOM_VALUE}'}
with pytest.raises(ValueError):
module.resolve_env_variables(config)
def test_env_full(monkeypatch):
monkeypatch.setenv("MY_CUSTOM_VALUE", "foo")
monkeypatch.delenv("MY_CUSTOM_VALUE2", raising=False)
config = {
'key': 'Hello $MY_CUSTOM_VALUE is not resolved',
'dict': {
'key': 'value',
'anotherdict': {
'key': 'My ${MY_CUSTOM_VALUE} here',
'other': '${MY_CUSTOM_VALUE}',
'list': [
'/home/${MY_CUSTOM_VALUE}/.local',
'/var/log/',
'/home/${MY_CUSTOM_VALUE2:-bar}/.config',
],
},
},
'list': [
'/home/${MY_CUSTOM_VALUE}/.local',
'/var/log/',
'/home/${MY_CUSTOM_VALUE2-bar}/.config',
],
}
module.resolve_env_variables(config)
assert config == {
'key': 'Hello $MY_CUSTOM_VALUE is not resolved',
'dict': {
'key': 'value',
'anotherdict': {
'key': 'My foo here',
'other': 'foo',
'list': ['/home/foo/.local', '/var/log/', '/home/bar/.config',],
},
},
'list': ['/home/foo/.local', '/var/log/', '/home/bar/.config',],
}