YAML support

jeeves/core/parsers.py

@@ -3,6 +3,11 @@ from typing import Any, Text, MutableMapping
 from pathlib import Path
 
 import toml
+import yaml
+try:
+    from yaml import CLoader as Loader, CDumper as Dumper
+except ImportError:
+    from yaml import Loader, Dumper
 
 from jeeves.core.objects import Flow, BaseObject
 
@@ -44,6 +49,20 @@ class ObjectParser:
     def to_toml(cls, obj: BaseObject) -> Text:
         return toml.dumps(cls.to_dict(obj))
 
+    @classmethod
+    def from_yaml(cls, serialized: Text) -> BaseObject:
+        dct = yaml.load(serialized, Loader=Loader)
+        return cls.from_dict(dct)
+
+    @classmethod
+    def from_yaml_file(cls, path) -> BaseObject:
+        dct = yaml.load(path, Loader=Loader)
+        return cls.from_dict(dct)
+
+    @classmethod
+    def to_yaml(cls, obj: BaseObject) -> Text:
+        return yaml.dump(cls.to_dict(obj), Dumper=Dumper)
+
 
 class FlowParser(ObjectParser):
     object = Flow

poetry.lock

@@ -771,7 +771,7 @@ python-versions = "*"
 version = "227"
 
 [[package]]
-category = "dev"
+category = "main"
 description = "YAML parser and emitter for Python"
 name = "pyyaml"
 optional = false
@@ -1081,7 +1081,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "5748d878d35d06c5a3aa0a58cf0701e0b530a7552bf3912cd1ebf9c796ac6f89"
+content-hash = "5971fde5b20ddae1180a2f625dadd45dbb75af3a1d16a296867853e38d1044c7"
 python-versions = "^3.7"
 
 [metadata.files]

pyproject.toml

@@ -14,6 +14,7 @@ pydantic = "^0.32.2"
 click = "^7.0"
 toml = "^0.10.0"
 docker = "^4.1.0"
+pyyaml = "^5.3.1"
 
 [tool.poetry.dev-dependencies]
 black = {version = "^18.3-alpha.0", allow-prereleases = true}