Use dataclasses-json's mixin instead of decorator.

src/pyorderly/outpack/location_ssh.py

@@ -84,7 +84,7 @@ def __enter__(self):
             path = self._root / ".outpack" / "config.json"
             try:
                 with sftp.open(str(path)) as f:
-                    self.config = Config.from_json(f.read().strip())  # type: ignore
+                    self.config = Config.from_json(f.read().strip())
             except OSError as e:
                 if e.errno == errno.ENOENT:
                     msg = f"Path '{self._root}' on remote {self._hostname} is not a valid outpack repository"
@@ -106,7 +106,7 @@ def list(self) -> Dict[str, PacketLocation]:
         result = {}
         for packet in self._sftp.listdir(str(path)):
             with self._sftp.open(str(path / packet)) as f:
-                result[packet] = PacketLocation.from_json(f.read().strip())  # type: ignore
+                result[packet] = PacketLocation.from_json(f.read().strip())
         return result
 
     def metadata(self, ids: List[str]) -> Dict[str, str]:

src/pyorderly/outpack/metadata.py

@@ -2,15 +2,14 @@
 from pathlib import Path
 from typing import Dict, List, Optional, Union
 
-from dataclasses_json import dataclass_json
+from dataclasses_json import DataClassJsonMixin
 
 from pyorderly.outpack.hash import hash_file
 from pyorderly.outpack.tools import GitInfo
 
 
-@dataclass_json()
 @dataclass
-class PacketFile:
+class PacketFile(DataClassJsonMixin):
     path: str
     size: float
     hash: str
@@ -35,16 +34,14 @@ def from_packet_file(file: PacketFile, location: str, packet_id: str):
         )
 
 
-@dataclass_json()
 @dataclass
-class PacketDependsPath:
+class PacketDependsPath(DataClassJsonMixin):
     here: str
     there: str
 
 
-@dataclass_json()
 @dataclass
-class PacketDepends:
+class PacketDepends(DataClassJsonMixin):
     packet: str
     query: str
     files: List[PacketDependsPath]
@@ -57,9 +54,8 @@ def files_from_dict(files):
 Parameters = Dict[str, Union[bool, int, float, str]]
 
 
-@dataclass_json()
 @dataclass
-class MetadataCore:
+class MetadataCore(DataClassJsonMixin):
     schema_version: str
     id: str
     name: str
@@ -78,19 +74,18 @@ def file_hash(self, name):
         raise Exception(msg)
 
 
-@dataclass_json()
 @dataclass
-class PacketLocation:
+class PacketLocation(DataClassJsonMixin):
     packet: str
     time: float
     hash: str
 
 
 def read_metadata_core(path) -> MetadataCore:
     with open(path) as f:
-        return MetadataCore.from_json(f.read().strip())  # type: ignore
+        return MetadataCore.from_json(f.read().strip())
 
 
 def read_packet_location(path) -> PacketLocation:
     with open(path) as f:
-        return PacketLocation.from_json(f.read().strip())  # type: ignore
+        return PacketLocation.from_json(f.read().strip())