diff --git a/drone.py b/drone.py new file mode 100644 index 0000000..0943116 --- /dev/null +++ b/drone.py @@ -0,0 +1,91 @@ +import dataclasses +import datetime +import os +import pathlib +import sys +from typing import List +from typing import Optional + +import plumbum.cmd +import plumbum.machines + + +@dataclasses.dataclass +class Config: + repo_path: pathlib.Path + archive_path: List[str] + check: bool = True + compact: bool = True + repo_init: bool = True + repo_init_append_only: bool = False + repo_init_quota: Optional[str] = None + repo_init_encryption: str = "" + repo_init_overwrite_key: bool = False + repo_key_file: pathlib.Path = pathlib.Path("/keys") + repo_passphrase: Optional[str] = None + repo_passphrase_file: Optional[pathlib.Path] = None + prune: bool = False + prune_interval: Optional[datetime.timedelta] = None + prune_secondly: Optional[int] = None + prune_minutely: Optional[int] = None + prune_hourly: Optional[int] = None + prune_daily: Optional[int] = None + prune_weekly: Optional[int] = None + prune_monthly: Optional[int] = None + prune_yearly: Optional[int] = None + archive_name: Optional[str] = None + archive_comment: Optional[str] = None + archive_exclude_pattern: Optional[str] = None + archive_exclude_caches: bool = False + archive_exclude_if_present: Optional[str] = None + archive_keep_exclude_tags: bool = False + + @classmethod + def build(cls): + parameters = {} + for conf, field in cls.__dataclass_fields__.items(): + env = f"BORGDRONE_{conf.upper()}" + if env in os.environ: + if field.type == bool: + parameters[conf] = cls._parse_bool(env, os.environ[env]) + + return cls(**parameters) + + @staticmethod + def _parse_bool(env: str, value: str) -> bool: + if value.lower().strip() == "true": + return True + elif value.lower().strip() == "false": + return False + else: + raise RuntimeError( + f"Environment variable {env} contains an unexpected value '{value}', expected one of: 'true', 'false'" + ) + + +def check_version(borg: plumbum.machines.LocalCommand): + version = borg["--version"]().partition(" ")[-1].strip() + + if int(version.partition(".")[0]) < 2: + raise RuntimeError("BorgDrone requires BorgBackup version 2.0 or higher") + + print(f"Using BorgBackup {version} from {borg.executable}", file=sys.stderr) + + +def main() -> int: + borg = plumbum.cmd.borg + code = 0 + + try: + check_version(borg) + + config = Config.build() + except RuntimeError as err: + print(f"FATAL: {err}", file=sys.stderr) + code = 1 + + return code + + +if __name__ == "__main__": + sys.exit(main()) diff --git a/poetry.lock b/poetry.lock index d49364f..59a774d 100644 --- a/poetry.lock +++ b/poetry.lock @@ -1,5 +1,133 @@ # This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand. +[[package]] +name = "black" +version = "23.9.1" +description = "The uncompromising code formatter." +optional = false +python-versions = ">=3.8" +files = [ + {file = "black-23.9.1-cp310-cp310-macosx_10_16_arm64.whl", hash = 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