a-kenji
f383c6f82d
Add the `CLAN_DIR` environment variable. With this the user can specify the location of the clan.
120 lines
3.3 KiB
Python
120 lines
3.3 KiB
Python
import logging
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import os
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import sys
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import urllib
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from pathlib import Path
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log = logging.getLogger(__name__)
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def get_clan_flake_toplevel_or_env() -> Path | None:
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if clan_dir := os.environ.get("CLAN_DIR"):
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return Path(clan_dir)
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return get_clan_flake_toplevel()
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def get_clan_flake_toplevel() -> Path | None:
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return find_toplevel([".clan-flake", ".git", ".hg", ".svn", "flake.nix"])
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def find_git_repo_root() -> Path | None:
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return find_toplevel([".git"])
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def clan_key_safe(flake_url: str) -> str:
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"""
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only embed the url in the path, not the clan name, as it would involve eval.
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"""
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quoted_url = urllib.parse.quote_plus(flake_url)
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return f"{quoted_url}"
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def find_toplevel(top_level_files: list[str]) -> Path | None:
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"""Returns the path to the toplevel of the clan flake"""
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for project_file in top_level_files:
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initial_path = Path(os.getcwd())
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path = Path(initial_path)
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while path.parent != path:
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if (path / project_file).exists():
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return path
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path = path.parent
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return None
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def user_config_dir() -> Path:
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if sys.platform == "win32":
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return Path(os.getenv("APPDATA", os.path.expanduser("~\\AppData\\Roaming\\")))
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elif sys.platform == "darwin":
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return Path(os.path.expanduser("~/Library/Application Support/"))
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else:
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return Path(os.getenv("XDG_CONFIG_HOME", os.path.expanduser("~/.config")))
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def user_data_dir() -> Path:
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if sys.platform == "win32":
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return Path(
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os.getenv("LOCALAPPDATA", os.path.expanduser("~\\AppData\\Local\\"))
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)
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elif sys.platform == "darwin":
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return Path(os.path.expanduser("~/Library/Application Support/"))
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else:
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return Path(os.getenv("XDG_DATA_HOME", os.path.expanduser("~/.local/share")))
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def user_cache_dir() -> Path:
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if sys.platform == "win32":
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return Path(
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os.getenv("LOCALAPPDATA", os.path.expanduser("~\\AppData\\Local\\"))
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)
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elif sys.platform == "darwin":
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return Path(os.path.expanduser("~/Library/Caches/"))
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else:
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return Path(os.getenv("XDG_CACHE_HOME", os.path.expanduser("~/.cache")))
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def user_gcroot_dir() -> Path:
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p = user_config_dir() / "clan" / "gcroots"
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p.mkdir(parents=True, exist_ok=True)
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return p
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def machine_gcroot(flake_url: str) -> Path:
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# Always build icon so that we can symlink it to the gcroot
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gcroot_dir = user_gcroot_dir()
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clan_gcroot = gcroot_dir / clan_key_safe(flake_url)
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clan_gcroot.mkdir(parents=True, exist_ok=True)
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return clan_gcroot
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def user_history_file() -> Path:
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return user_config_dir() / "clan" / "history"
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def vm_state_dir(flake_url: str, vm_name: str) -> Path:
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clan_key = clan_key_safe(flake_url)
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return user_data_dir() / "clan" / "vmstate" / clan_key / vm_name
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def machines_dir(flake_dir: Path) -> Path:
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return flake_dir / "machines"
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def specific_machine_dir(flake_dir: Path, machine: str) -> Path:
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return machines_dir(flake_dir) / machine
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def machine_settings_file(flake_dir: Path, machine: str) -> Path:
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return specific_machine_dir(flake_dir, machine) / "settings.json"
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def module_root() -> Path:
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return Path(__file__).parent
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def nixpkgs_flake() -> Path:
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return (module_root() / "nixpkgs").resolve()
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def nixpkgs_source() -> Path:
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return (module_root() / "nixpkgs" / "path").resolve()
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