Merge pull request #423 from maresb/handle-nodefaults

Handle nodefaults in all specs

conda_lock/models/lock_spec.py

@@ -81,5 +81,8 @@ def content_hash_for_platform(self, platform: str) -> str:
     def validate_channels(cls, v: List[Union[Channel, str]]) -> List[Channel]:
         for i, e in enumerate(v):
             if isinstance(e, str):
-                v[i] = Channel.from_string(e)
+                e = Channel.from_string(e)
+                v[i] = e
+            if e.url == "nodefaults":
+                raise ValueError("nodefaults channel is not allowed, ref #418")
         return typing.cast(List[Channel], v)

conda_lock/src_parser/meta_yaml.py

@@ -103,6 +103,11 @@ def parse_meta_yaml_file(
         meta_yaml_data = yaml.safe_load(rendered)
 
     channels = get_in(["extra", "channels"], meta_yaml_data, [])
+    try:
+        # conda-lock will use `--override-channels` so nodefaults is redundant.
+        channels.remove("nodefaults")
+    except ValueError:
+        pass
 
     # parse with selectors for each target platform
     dep_map = {

conda_lock/src_parser/pyproject_toml.py

@@ -293,9 +293,16 @@ def specification_with_dependencies(
             if dep.name in force_pypi:
                 dep.manager = "pip"
 
+    channels = get_in(["tool", "conda-lock", "channels"], toml_contents, [])
+    try:
+        # conda-lock will use `--override-channels` so nodefaults is redundant.
+        channels.remove("nodefaults")
+    except ValueError:
+        pass
+
     return LockSpecification(
         dependencies={platform: dependencies for platform in platforms},
-        channels=get_in(["tool", "conda-lock", "channels"], toml_contents, []),
+        channels=channels,
         sources=[path],
         allow_pypi_requests=get_in(
             ["tool", "conda-lock", "allow-pypi-requests"], toml_contents, True