creating config structure

keymapper/config.py

@@ -27,7 +27,8 @@ import os
 from keymapper.logger import logger
 
 
-_config = None
+# one config file per preset, one folder per device
+_configs = {}
 
 
 _defaults = {}
@@ -72,18 +73,23 @@ def _modify_config(config_contents, key, value):
 
 class Config:
     """Read and set config values."""
-    def __init__(self, path=None):
+    def __init__(self, device, preset, path=None):
         """Initialize the interface to the config file.
 
         Parameters
         ----------
         path : string or None
-            If none, will default to '~/.config/key-mapper/config'
+            If none, will default to '~/.config/key-mapper/'.
+            In that directory, a folder for the device and a file for
+            the preset will be created.
         """
         if path is None:
-            path = os.path.expanduser('~/.config/key-mapper/config')
+            path = os.path.expanduser('~/.config/key-mapper/')
+        path = os.path.join(path, device, preset)
         logger.debug('Using config file at %s', path)
 
+        self.device = device
+        self.preset = preset
         self._path = path
         self._config = {}
         self.mtime = 0
@@ -172,15 +178,16 @@ class Config:
         return True
 
 
-def get_config(*args, **kwargs):
+def get_config(device, preset, path):
     """Ask for the config. Initialize it if not yet done so.
-
-    Will pass any parameters to the config constructor. Only needed in tests
-    to avoid writing the users config.
     """
     # don't initialize it right away in the global scope, to avoid having
     # the wrong logging verbosity.
-    global _config
+    global _configs
-    if _config is None:
+    if _configs.get(device) is None:
-        _config = Config(*args, **kwargs)
+        _configs[device] = {}
-    return _config
+
+    if _configs[device].get(preset) is None:
+        _configs[device][preset] = Config(device, preset, path)
+
+    return _configs[device][preset]

keymapper/devices.py

@@ -29,3 +29,8 @@ def find_devices():
     """Get a list of (id, name) for each input device."""
     # `xinput list`
     pass
+
+
+def get_presets(device):
+    """Get all configured presets for the device"""
+    pass

tests/testcases/config.py

@@ -19,9 +19,11 @@
 # along with key-mapper.  If not, see <https://www.gnu.org/licenses/>.
 
 
+import os
 import unittest
 
-from keymapper.config import _modify_config
+from keymapper.logger import update_verbosity
+from keymapper.config import _modify_config, get_config
 
 
 class ConfigTest(unittest.TestCase):
@@ -40,6 +42,20 @@ class ConfigTest(unittest.TestCase):
         contents = _modify_config(contents, 'test', '1234')
         self.assertEqual(contents, """a=1\n # test=3\n  abc=123\ntest=1234""")
 
+    def test_get_config(self):
+        update_verbosity(True)
+
+        config = get_config('device1', 'preset1', '/tmp/key-mapper')
+        self.assertEqual(config.device, 'device1')
+        self.assertEqual(config.preset, 'preset1')
+        self.assertTrue(os.path.isfile('/tmp/key-mapper/device1/preset1'))
+
+        get_config('device1', 'preset2', '/tmp/key-mapper')
+        self.assertTrue(os.path.isfile('/tmp/key-mapper/device1/preset2'))
+
+        get_config('device2', 'preset3', '/tmp/key-mapper')
+        self.assertTrue(os.path.isfile('/tmp/key-mapper/device2/preset3'))
+
 
 if __name__ == "__main__":
     unittest.main()

tests/util.py

@@ -1,23 +0,0 @@
-#!/usr/bin/python3
-# -*- coding: utf-8 -*-
-
-"""utils used by tests"""
-
-
-from soundconverter.util.settings import settings
-
-
-DEFAULT_SETTINGS = settings.copy()
-
-
-def reset_settings():
-    """Reset the global settings to their initial state."""
-    global settings
-    # convert to list otherwise del won't work
-    for key in list(settings.keys()):
-        if key in DEFAULT_SETTINGS:
-            settings[key] = DEFAULT_SETTINGS[key]
-        else:
-            del settings[key]
-    # batch tests assume that recursive is off by default:
-    assert (("recursive" not in settings) or (not settings["recursive"]))