Add first draft for config parsing

Signed-off-by: InsanePrawn <insane.prawny@gmail.com>

config.py

@@ -0,0 +1,44 @@
+import appdirs
+import os
+import toml
+
+CONFIG_DEFAULT_PATH = os.path.join(appdirs.user_config_dir('kupfer'), 'kupferbootstrap.toml')
+
+PROFILE_DEFAULTS = {
+    'device': '',
+    'flavour': '',
+    'pkgs_include': [],
+    'pkgs_exclude': [],
+    'hostname': 'kupfer',
+    'username': 'kupfer'
+}
+
+CONFIG_DEFAULTS = {
+    'build': {
+        'crosscompile': True,
+        'threads': 0,
+    },
+    'paths': {
+        'chroots': os.path.join(appdirs.user_cache_dir('kupfer'), 'chroots'),
+        'pacman_cache': os.path.join(appdirs.user_cache_dir('kupfer'), 'pacman'),
+        'jumpdrive_cache': os.path.join(appdirs.user_cache_dir('kupfer'), 'jumpdrive')
+    },
+    'profiles': {
+        'default': PROFILE_DEFAULTS.copy()
+    }
+}
+
+
+def load_config(config_file=None):
+    _conf_file = config_file if config_file != None else DEFAULT_CONFIG_PATH
+    loaded_conf = toml.load(_conf_file)
+    # TODO: validate keys in loaded_conf, selectively merge known ones with CONFIG_DEFAULTS.
+    # Recurse into dict vales for one level except for profiles.* (do check for profiles.default tho!)
+    pass
+
+
+# temporary demo
+if __name__ == '__main__':
+    conf = CONFIG_DEFAULTS.copy()
+    conf['profiles']['pinephone'] = {'hostname': 'slowphone', 'pkgs_include': ['zsh','tmux','mpv','firefox']}
+    print(toml.dumps(conf))