clan-config: improve and add flake-parts module for clan-config
This commit is contained in:
parent
957e417b50
commit
48686591d8
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@ -31,8 +31,9 @@
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./lib/flake-module.nix
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({ self, lib, ... }: {
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flake.nixosModules = lib.mapAttrs (_: nix: { imports = [ nix ]; }) (self.lib.findNixFiles ./nixosModules);
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flake.flakeModules = lib.mapAttrs (_: nix: { imports = [ nix ]; }) (self.lib.findNixFiles ./flakeModules);
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flake.clanModules = lib.mapAttrs (_: nix: { imports = [ nix ]; }) (self.lib.findNixFiles ./clanModules);
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flake.nixosModules = lib.mapAttrs (_: nix: { imports = [ nix ]; }) (self.lib.findNixFiles ./nixosModules);
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})
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];
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});
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40
flakeModules/clan-config.nix
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40
flakeModules/clan-config.nix
Normal file
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@ -0,0 +1,40 @@
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{ self, inputs, ... }:
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let
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# take the default nixos configuration
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options = self.nixosConfigurations.default.options;
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# this is actually system independent as it uses toFile
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docs = inputs.nixpkgs.legacyPackages.x86_64-linux.nixosOptionsDoc {
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inherit options;
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};
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optionsJSONFile = docs.optionsJSON.options;
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warnIfNoDefaultConfig = return:
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if ! self ? nixosConfigurations.default
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then
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builtins.trace
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"WARNING: .#nixosConfigurations.default could not be found. Please define it."
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return
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else return;
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in
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{
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flake.clanOptions = warnIfNoDefaultConfig optionsJSONFile;
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flake.clanSettings = self + /clan-settings.json;
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perSystem = { pkgs, inputs', ... }: {
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devShells.clan-config = pkgs.mkShell {
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packages = [
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inputs'.clan-core.packages.clan-cli
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];
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shellHook = ''
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export CLAN_OPTIONS_FILE=$(nix eval --raw .#clanOptions)
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export XDG_DATA_DIRS="${inputs'.clan-core.packages.clan-cli}/share''${XDG_DATA_DIRS:+:$XDG_DATA_DIRS}"
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export fish_complete_path="${inputs'.clan-core.packages.clan-cli}/share/fish/vendor_completions.d''${fish_complete_path:+:$fish_complete_path}"
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'';
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};
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};
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}
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@ -1,9 +1,11 @@
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# !/usr/bin/env python3
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import argparse
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import json
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import os
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import subprocess
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import sys
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from pathlib import Path
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from typing import Any, Optional, Type
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from typing import Any, Optional, Type, Union
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from clan_cli.errors import ClanError
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@ -14,7 +16,11 @@ script_dir = Path(__file__).parent
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def map_type(type: str) -> Type:
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if type == "boolean":
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return bool
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elif type in ["integer", "signed integer"]:
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elif type in [
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"integer",
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"signed integer",
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"16 bit unsigned integer; between 0 and 65535 (both inclusive)",
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]:
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return int
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elif type == "string":
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return str
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@ -28,14 +34,19 @@ def map_type(type: str) -> Type:
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raise ClanError(f"Unknown type {type}")
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class Kwargs:
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def __init__(self) -> None:
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self.type: Optional[Type] = None
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self.default: Any = None
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self.required: bool = False
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self.help: Optional[str] = None
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self.action: Optional[str] = None
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self.choices: Optional[list] = None
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# merge two dicts recursively
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def merge(a: dict, b: dict, path: list[str] = []) -> dict:
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for key in b:
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if key in a:
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if isinstance(a[key], dict) and isinstance(b[key], dict):
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merge(a[key], b[key], path + [str(key)])
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elif isinstance(a[key], list) and isinstance(b[key], list):
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a[key].extend(b[key])
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elif a[key] != b[key]:
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raise Exception("Conflict at " + ".".join(path + [str(key)]))
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else:
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a[key] = b[key]
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return a
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# A container inheriting from list, but overriding __contains__ to return True
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@ -46,20 +57,57 @@ class AllContainer(list):
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return True
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def process_args(option: str, value: Any, options: dict) -> None:
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# value is always a list, as the arg parser cannot know the type upfront
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# and therefore always allows multiple arguments.
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def cast(value: Any, type: Type, opt_description: str) -> Any:
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try:
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# handle bools
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if isinstance(type(), bool):
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if value[0] in ["true", "True", "yes", "y", "1"]:
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return True
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elif value[0] in ["false", "False", "no", "n", "0"]:
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return False
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else:
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raise ClanError(f"Invalid value {value} for boolean")
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# handle lists
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elif isinstance(type(), list):
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subtype = type.__args__[0]
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return [cast([x], subtype, opt_description) for x in value]
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# handle dicts
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elif isinstance(type(), dict):
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if not isinstance(value, dict):
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raise ClanError(
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f"Cannot set {opt_description} directly. Specify a suboption like {opt_description}.<name>"
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)
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subtype = type.__args__[1]
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return {k: cast(v, subtype, opt_description) for k, v in value.items()}
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else:
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if len(value) > 1:
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raise ClanError(f"Too many values for {opt_description}")
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return type(value[0])
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except ValueError:
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raise ClanError(
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f"Invalid type for option {opt_description} (expected {type.__name__})"
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)
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def process_args(
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option: str, value: Any, options: dict, option_description: str = ""
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) -> None:
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option_path = option.split(".")
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# if the option cannot be found, then likely the type is attrs and we need to
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# find the parent option
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if option not in options:
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if len(option_path) == 1:
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raise ClanError(f"Option {option} not found")
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raise ClanError(f"Option {option_description} not found")
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option_parent = option_path[:-1]
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attr = option_path[-1]
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return process_args(
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option=".".join(option_parent),
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value={attr: value},
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options=options,
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option_description=option,
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)
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target_type = map_type(options[option]["type"])
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@ -72,52 +120,48 @@ def process_args(option: str, value: Any, options: dict) -> None:
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current = current[part]
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current[option_path[-1]] = value
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# value is always a list, as the arg parser cannot know the type upfront
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# and therefore always allows multiple arguments.
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def cast(value: Any, type: Type) -> Any:
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try:
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# handle bools
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if isinstance(type(), bool):
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if value == "true":
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return True
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elif value == "false":
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return False
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else:
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raise ClanError(f"Invalid value {value} for boolean")
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# handle lists
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elif isinstance(type(), list):
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subtype = type.__args__[0]
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return [cast([x], subtype) for x in value]
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# handle dicts
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elif isinstance(type(), dict):
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if not isinstance(value, dict):
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raise ClanError(
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f"Cannot set {option} directly. Specify a suboption like {option}.<name>"
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)
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subtype = type.__args__[1]
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return {k: cast(v, subtype) for k, v in value.items()}
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else:
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if len(value) > 1:
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raise ClanError(f"Too many values for {option}")
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return type(value[0])
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except ValueError:
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raise ClanError(
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f"Invalid type for option {option} (expected {type.__name__})"
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)
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casted = cast(value, target_type)
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casted = cast(value, target_type, option)
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current[option_path[-1]] = casted
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# print the result as json
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print(json.dumps(result, indent=2))
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# check if there is an existing config file
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if os.path.exists("clan-settings.json"):
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with open("clan-settings.json") as f:
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current_config = json.load(f)
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else:
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current_config = {}
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# merge and save the new config file
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new_config = merge(current_config, result)
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with open("clan-settings.json", "w") as f:
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json.dump(new_config, f, indent=2)
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print("New config:")
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print(json.dumps(new_config, indent=2))
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def register_parser(
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parser: argparse.ArgumentParser,
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file: Path = Path(f"{script_dir}/jsonschema/options.json"),
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optionsFile: Optional[Union[str, Path]] = os.environ.get("CLAN_OPTIONS_FILE"),
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) -> None:
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options = json.loads(file.read_text())
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if not optionsFile:
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# use nix eval to evaluate .#clanOptions
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# this will give us the evaluated config with the options attribute
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proc = subprocess.run(
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[
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"nix",
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"eval",
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"--raw",
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".#clanOptions",
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],
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check=True,
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capture_output=True,
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text=True,
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)
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file = proc.stdout.strip()
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with open(file) as f:
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options = json.load(f)
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else:
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with open(optionsFile) as f:
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options = json.load(f)
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return _register_parser(parser, options)
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@ -47,6 +47,9 @@ python3.pkgs.buildPythonPackage {
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name = "clan-cli";
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src = source;
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format = "pyproject";
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CLAN_OPTIONS_FILE = ./clan_cli/config/jsonschema/options.json;
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nativeBuildInputs = [
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setuptools
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installShellFiles
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@ -9,7 +9,7 @@ import pytest
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from clan_cli import config
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from clan_cli.config import parsing
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example_schema = f"{Path(config.__file__).parent}/jsonschema/options.json"
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example_options = f"{Path(config.__file__).parent}/jsonschema/options.json"
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# use pytest.parametrize
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# monkeypatch sys.argv
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monkeypatch.setattr(sys, "argv", [""] + argv)
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parser = argparse.ArgumentParser()
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config.register_parser(parser=parser, file=Path(example_schema))
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config.register_parser(parser=parser, optionsFile=Path(example_options))
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args = parser.parse_args()
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args.func(args)
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captured = capsys.readouterr()
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)
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assert parsing.type_from_schema_path(schema, ["age"]) == int
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assert parsing.type_from_schema_path(schema, ["users", "foo"]) == str
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# test the cast function with simple types
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def test_cast_simple() -> None:
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assert config.cast(["true"], bool, "foo-option") is True
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