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Update configuration with new design requirements
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parent
0be8cb96b7
commit
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@ -1,5 +1,3 @@
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import datetime
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import enum
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import json
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import os
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from dataclasses import dataclass
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@ -10,9 +8,7 @@ from typing import Dict
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from typing import NamedTuple
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from typing import Optional
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from typing import Sequence
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from typing import Tuple
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import peewee
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from typing import Union
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from fresnel_lens import constants
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@ -42,83 +38,141 @@ def _default_sqlite_pragmas() -> Dict[str, Any]:
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@dataclass
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class _DBSqliteConfig:
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path: Path = Path.cwd() / "fresnel_lens.db"
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class DatabaseSqliteConfig:
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path: Path = Path.cwd() / "fresnel.db"
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pragmas: Dict[str, Any] = field(default_factory=_default_sqlite_pragmas)
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@classmethod
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def build(cls):
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def from_env(cls):
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return cls(
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path=Path(os.environ.get(constants.ENV_CONF_DB_SQLITE_PATH, cls.path)),
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pragmas=json.loads(os.environ[constants.ENV_CONF_DB_SQLITE_PRAGMAS])
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if constants.ENV_CONF_DB_SQLITE_PRAGMAS in os.environ
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else _default_sqlite_pragmas(),
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path=Path(os.environ.get("FRESNEL_DB_SQLITE_PATH", cls.path)),
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pragmas=json.loads(os.environ["FRESNEL_DB_SQLITE_PRAGMAS"])
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if "FRESNEL_DB_SQLITE_PRAGMAS" in os.environ
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else constants.DEFAULT_SQLITE_PRAGMAS,
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)
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@dataclass
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class _DBMariaConfig:
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class DatabaseMariaConfig:
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hostname: str = "localhost"
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username: str = "root"
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password: Optional[str] = None
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port: int = 3306
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schema: str = "fresnel_lens"
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schema: str = "fresnel"
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@classmethod
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def build(cls):
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def from_env(cls):
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return cls(
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hostname=os.getenv(constants.ENV_CONF_DB_MARIA_HOSTNAME, cls.hostname),
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username=os.getenv(constants.ENV_CONF_DB_MARIA_USERNAME, cls.username),
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password=os.environ.get(constants.ENV_CONF_DB_MARIA_PASSWORD, cls.password),
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port=int(os.environ.get(constants.ENV_CONF_DB_MARIA_PORT, cls.port)),
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schema=os.getenv(constants.ENV_CONF_DB_MARIA_SCHEMA, cls.schema),
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hostname=os.getenv("FRESNEL_DB_MARIA_HOSTNAME", cls.hostname),
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username=os.getenv("FRESNEL_DB_MARIA_USERNAME", cls.username),
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password=os.environ.get("FRESNEL_DB_MARIA_PASSWORD", cls.password),
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port=int(os.environ.get("FRESNEL_DB_MARIA_PORT", cls.port)),
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schema=os.getenv("FRESNEL_DB_MARIA_SCHEMA", cls.schema),
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)
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@dataclass
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class _DBConfig:
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class DatabaseConfig:
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backend: constants.DatabaseBackend = constants.DatabaseBackend.SQLITE
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sqlite: _DBSqliteConfig = field(default_factory=_DBSqliteConfig.build)
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mariadb: _DBMariaConfig = field(default_factory=_DBMariaConfig.build)
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sqlite: DatabaseSqliteConfig = field(default_factory=DatabaseSqliteConfig.from_env)
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mariadb: DatabaseMariaConfig = field(default_factory=DatabaseMariaConfig.from_env)
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@classmethod
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def build(cls):
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def from_env(cls):
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return cls(
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backend=constants.DatabaseBackend[os.environ[constants.ENV_CONF_DB_BACKEND]]
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if constants.ENV_CONF_DB_BACKEND in os.environ
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backend=constants.DatabaseBackend[os.environ["FRESNEL_DB_BACKEND"].upper()]
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if "FRESNEL_DB_BACKEND" in os.environ
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else cls.backend
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)
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@dataclass
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class ManipConfig:
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alias: str
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name: str
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strategy: constants.DimensionStrategy = constants.DimensionStrategy.SCALE
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anchor: constants.Anchor = constants.Anchor.C
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formats: Sequence[constants.ImageFormat] = (
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constants.ImageFormat.JPEG,
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constants.ImageFormat.PNG,
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)
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horizontal: None
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vertical: None
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@dataclass
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class ImageMuckConfig:
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database: _DBConfig = field(default_factory=_DBConfig.build)
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images: Path = Path.cwd() / "images"
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cache_dir: Path = Path.cwd() / "cache"
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expose_source: bool = False
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manips: Sequence[ManipConfig] = ()
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horizontal: Optional[Union[int, float]] = None
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vertical: Optional[Union[int, float]] = None
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@classmethod
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def from_env(cls):
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def from_env(cls, key: str):
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strategy = (
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constants.DimensionStrategy[
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os.environ[f"FRESNEL_MANIP_{key}_STRATEGY"].upper()
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]
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if f"FRESNEL_MANIP_{key}_STRATEGY" in os.environ
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else cls.strategy
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)
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dimension_conversion = (
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float if strategy == constants.DimensionStrategy.RELATIVE else int
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)
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return cls(
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storage_path=Path(
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os.getenv(constants.ENV_CONF_FS_STORAGE_PATH, cls.storage_path)
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).resolve()
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name=os.getenv(f"FRESNEL_MANIP_{key}_NAME", key.lower()),
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strategy=strategy,
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anchor=constants.Anchor(os.environ[f"FRESNEL_MANIP_{key}_ANCHOR"].lower())
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if f"FRESNEL_MANIP_{key}_ANCHOR" in os.environ
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else cls.anchor,
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formats=[
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constants.ImageFormat[item.upper()]
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for item in os.environ[f"FRESNEL_MANIP_{key}_FORMATS"].split(",")
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]
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if f"FRESNEL_MANIP_{key}_FORMATS" in os.environ
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else cls.formats,
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horizontal=dimension_conversion(
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os.environ[f"FRESNEL_MANIP_{key}_HORIZONTAL"]
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)
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if f"FRESNEL_MANIP_{key}_HORIZONTAL" in os.environ
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else cls.horizontal,
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vertical=dimension_conversion(os.environ[f"FRESNEL_MANIP_{key}_VERTICAL"])
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if f"FRESNEL_MANIP_{key}_VERTICAL" in os.environ
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else cls.vertical,
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)
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def load() -> ImageMuckConfig:
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return ImageMuckConfig.from_env()
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@dataclass
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class FresnelConfig:
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database: DatabaseConfig = field(default_factory=DatabaseConfig.from_env)
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sourcedir: Path = Path.cwd() / "images"
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manipdir: Path = Path.cwd() / "images"
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expose_source: bool = False
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private: bool = False
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manips: Dict[str, ManipConfig] = field(default_factory=dict)
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@classmethod
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def from_env(cls):
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manip_names = set(
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[
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key.replace("FRESNEL_MANIP_", "").partition("_")[0]
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for key in os.environ.keys()
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if key.startswith("FRESNEL_MANIP_")
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]
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)
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return cls(
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sourcedir=Path(os.environ.get("FRESNEL_SOURCEDIR", cls.sourcedir))
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.expanduser()
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.resolve(),
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manipdir=Path(os.environ.get("FRESNEL_MANIPDIR", cls.manipdir))
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.expanduser()
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.resolve(),
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expose_source=os.getenv(
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"FRESNEL_EXPOSE_SOURCE", str(cls.expose_source)
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).lower()
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== "true",
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private=os.getenv("FRESNEL_PRIVATE", str(cls.private)).lower() == "true",
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manips={name.lower(): ManipConfig.from_env(name) for name in manip_names},
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)
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def load() -> FresnelConfig:
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try:
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return FresnelConfig.from_env()
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except (ValueError, TypeError, IndexError, KeyError) as err:
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raise RuntimeError(err)
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@ -15,15 +15,27 @@ class DimensionStrategy(enum.Enum):
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class ImageFormat(enum.Enum):
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JPEG = ("jpg", "jpeg")
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PNG = ("png",)
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GIF = ("gif",)
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JPEG = enum.auto()
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PNG = enum.auto()
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GIF = enum.auto()
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class Anchor(enum.Enum):
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TL = "top-left"
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TC = "top-center"
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TR = "top-center"
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CL = "center-left"
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C = "center"
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CR = "center-right"
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BL = "bottom-left"
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BC = "bottom-center"
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BR = "bottom-right"
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HTTP_HEADER_RESPONSE_VERSION = "x-fresnel_lens-version"
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HTTP_HEADER_RESPONSE_DIGEST = "Digest"
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DEFAULT_SQLITE_PRAGMAS = {
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"journal_mode": "wal",
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"cache_size": -1 * 64000,
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"foreign_keys": 1,
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"ignore_check_constraints": 0,
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"synchronous": 0,
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}
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