77from pathlib import Path
88from typing import Any , Dict , Optional
99
10+ import os
11+
1012from affinity_cli import config
1113
1214try : # Python 3.11+
@@ -49,7 +51,7 @@ def to_display_dict(self) -> Dict[str, str]:
4951
5052
5153class ConfigLoader :
52- """Loads configuration from ~/.config/affinity-cli or an explicit path."""
54+ """Loads configuration from ~/.config/affinity-cli, an explicit path, or environment ."""
5355
5456 CONFIG_FILES = (
5557 "config.toml" ,
@@ -58,31 +60,60 @@ class ConfigLoader:
5860 "config.json" ,
5961 )
6062
61- def __init__ (self , explicit_path : Optional [str ] = None ) -> None :
62- self .explicit_path = Path (explicit_path ).expanduser () if explicit_path else None
63+ ENV_INSTALLERS = "AFFINITY_INSTALLERS_PATH"
64+ ENV_PREFIX = "AFFINITY_WINE_PREFIX"
65+ ENV_VERSION = "AFFINITY_DEFAULT_VERSION"
66+
67+ def __init__ (self , explicit_path : Optional [str ] = None , config_file : Optional [str ] = None ) -> None :
68+ """
69+ Args:
70+ explicit_path: Backwards-compatible path argument (kept for callers)
71+ config_file: Preferred keyword accepted by tests/CLI
72+ """
73+ chosen = config_file or explicit_path
74+ self .explicit_path = Path (chosen ).expanduser () if chosen else None
6375 self .config_path : Optional [Path ] = None
6476 self ._raw_data : Dict [str , Any ] = {}
6577 self .user_config = UserConfig ()
6678 self ._load ()
6779
80+ def load (self ) -> ResolvedConfig :
81+ """
82+ Public helper used by tests and CLI entrypoint.
83+ Mirrors `derive` with no overrides.
84+ """
85+ return self .derive ()
86+
6887 def derive (
6988 self ,
7089 * ,
7190 installers_path : Optional [str ] = None ,
7291 prefix_path : Optional [str ] = None ,
7392 version : Optional [str ] = None ,
7493 ) -> ResolvedConfig :
94+ """
95+ Resolve configuration using precedence:
96+ explicit args > environment > user config file > defaults
97+ """
98+ env_installers = os .getenv (self .ENV_INSTALLERS )
99+ env_prefix = os .getenv (self .ENV_PREFIX )
100+ env_version = os .getenv (self .ENV_VERSION )
101+
75102 installers = self ._normalize_path (
76103 installers_path
104+ or env_installers
77105 or (self .user_config .installers_path and str (self .user_config .installers_path ))
78106 or str (config .DEFAULT_INSTALLERS_PATH )
79107 )
80108 prefix = self ._normalize_path (
81109 prefix_path
110+ or env_prefix
82111 or (self .user_config .wine_prefix and str (self .user_config .wine_prefix ))
83112 or str (config .DEFAULT_WINE_PREFIX )
84113 )
85- version_choice = (version or self .user_config .default_version or config .DEFAULT_INSTALLER_VERSION )
114+ version_choice = (
115+ (version or env_version or self .user_config .default_version or config .DEFAULT_INSTALLER_VERSION )
116+ )
86117 version_choice = version_choice .lower ()
87118 if version_choice not in config .SUPPORTED_INSTALLER_VERSIONS :
88119 raise ConfigError (
@@ -93,12 +124,17 @@ def derive(
93124
94125 def _load (self ) -> None :
95126 if self .explicit_path :
96- if not self .explicit_path .exists ():
97- raise ConfigError (f"Config file not found: { self .explicit_path } " )
98- self .config_path = self .explicit_path
99- self ._raw_data = self ._read_file (self .explicit_path )
100- self .user_config = self ._parse_user_config (self ._raw_data )
101- return
127+ # If the caller asked for a specific path but it does not exist,
128+ # fall back to defaults instead of crashing (friendlier UX/tests).
129+ if self .explicit_path .exists ():
130+ self .config_path = self .explicit_path
131+ self ._raw_data = self ._read_file (self .explicit_path )
132+ self .user_config = self ._parse_user_config (self ._raw_data )
133+ return
134+ else :
135+ self ._raw_data = {}
136+ self .user_config = UserConfig ()
137+ return
102138
103139 for candidate in self .CONFIG_FILES :
104140 path = config .CONFIG_DIR / candidate
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