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import argparse
import os
import json
import logging
from dataclasses import dataclass
from typing import Dict, Any, Optional
from pathlib import Path
from dots_manager.shell import run_shell_command
from dots_manager.utils import merge_dicts
from dots_manager.kawaii_logger import setup_logger
@dataclass(frozen=True)
class Environment:
platform: str
system_name: str
context: Dict[str, Any]
logger: logging.Logger
@staticmethod
def from_argv(args: argparse.Namespace):
logger = setup_logger(verbose=args.verbose, logger_name="dots_manager")
platform = args.platform or run_shell_command(
[str(args.helper_scripts / "platform.sh")], logger
)
if not platform:
raise ValueError("failed to determine platform... ")
os.environ["PLATFORM"] = platform
system_name: Optional[str] = args.system_name or run_shell_command(
[str(args.helper_scripts / "system_name.sh")], logger
)
if not system_name:
raise ValueError("failed to determine system name... ")
context = load_context(platform, system_name, args.context, logger)
return Environment(platform, system_name, context, logger)
@dataclass(frozen=True)
class Constants:
default_target_dir: Path = Path.home()
dots_repo_dir: Path = Path.home() / Path("dotfiles")
default_source_dir: Path = dots_repo_dir / Path("dots")
default_compiled_dir: Path = dots_repo_dir / Path(".compiled_dotfiles")
default_script_dir: Path = default_source_dir / Path("home/scripts")
default_context: Path = dots_repo_dir / Path("context.json")
template_extension: str = ".j2"
max_workers: int = (os.cpu_count() or 1) * 2
global_context_key: str = "_global"
platform_default_context_key: str = "_default"
def load_context(
platform: str, system_name: str, context_file: Path, logger: logging.Logger
):
logger.info(f"reading context file: {context_file} ✧*:｡ﾟ✧")
context = json.loads(context_file.read_text())
global_context = context.get(Constants.global_context_key, {})
platform_defaults = context.get(platform, {}).get(
Constants.platform_default_context_key, {}
)
defaults = merge_dicts(global_context, platform_defaults)
system_config = context.get(platform, {}).get(system_name, {})
if not system_config:
logger.warning(
f"could not find context for 'contexts.{platform}.{system_name}' in {context_file.absolute()}"
)
return {
"platform": platform,
"system_name": system_name,
**merge_dicts(defaults, system_config),
}
def parse_arguments() -> argparse.Namespace:
parser = argparse.ArgumentParser(
description="૮ ․ ․ ྀིა emprespresso's dotfiles manager 🐧✧˖°"
)
parser.add_argument(
"--verbose",
"-v",
action="store_true",
default=os.environ.get("DEBUG", "false").lower() in ("y", "yes", "true", "t"),
help="enables verbose logging.",
)
parser.add_argument("--compile", action="store_true", help="compile le dotfiles.")
parser.add_argument(
"--source",
type=Path,
default=Constants.default_source_dir,
help=f"where to look for templated dotfile packages. default: '{Constants.default_source_dir}'.",
)
parser.add_argument(
"--output",
type=Path,
default=Constants.default_compiled_dir,
help=f"where to store compiled, stowable dotfile packages. default: '{Constants.default_compiled_dir}'.",
)
parser.add_argument(
"--context",
type=Path,
default=Constants.default_context,
help=f"path to contexts, stored as json. default: '{Constants.default_context}'.",
)
parser.add_argument(
"--helper-scripts",
type=Path,
default=Constants.default_script_dir,
help="where to find executable scripts to determine system info (device name, platform, etc.).",
)
parser.add_argument(
"--system-name",
type=str,
default=None,
help="the system's name. when unspecified, inferred via the hostname, or on osx, computername.",
)
parser.add_argument(
"--platform",
type=str,
default=None,
help="the system's os platform (i.e. osx, linux, bsd, windows, etc.). when unspecified, inferred via $OSTYPE.",
)
parser.add_argument(
"--stow", action="store_true", help="action: stow compiled dotfiles"
)
parser.add_argument(
"--clean", action="store_true", help="action: clean stowed dotfiles"
)
parser.add_argument(
"--target",
type=Path,
default=Constants.default_target_dir,
help=f"where the dotfile packages' symlinks will be stowed. default: '{Constants.default_target_dir}'",
)
return parser.parse_args()
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