fix: allow namespace packages as local dependencies

When evaluating local package names in PyPackage.install(), a
package's "canonical_name" should reference the package name
from the metadata file, not the parent directory of the project.

src/monas/config.py

@@ -90,7 +90,11 @@ def iter_packages(self) -> Iterable[PyPackage]:
         for p in self.package_paths:
             for package in p.iterdir():
                 if package.is_dir():
-                    yield PyPackage(self, package)
+                    pypackage = PyPackage(self, package)
+                    if not pypackage.metadata.path.is_file():
+                        # directory has no python metadata file, ignore
+                        continue
+                    yield pypackage
 
 
 pass_config = click.make_pass_decorator(Config, ensure=True)

src/monas/metadata/base.py

@@ -27,6 +27,11 @@ def version(self) -> str:
         """Get the project version"""
         pass
 
+    @abc.abstractproperty
+    def package_name(self) -> str:
+        """Get the project version"""
+        pass
+
     @version.setter
     def version(self, value: str) -> None:
         """Set the project version"""

src/monas/metadata/pep621.py

@@ -34,6 +34,10 @@ def _write(self) -> None:
     def version(self) -> str:
         return self._data["project"]["version"]
 
+    @property
+    def package_name(self) -> str:
+        return self._data["project"]["name"]
+
     @version.setter
     def version(self, value: str) -> None:
         self._data["project"]["version"] = value

src/monas/metadata/setupcfg.py

@@ -41,6 +41,10 @@ def _write(self) -> None:
     def version(self) -> str:
         return self._parser.get("metadata", "version")
 
+    @property
+    def package_name(self) -> str:
+        return self._parser.get("metadata", "name")
+
     @version.setter
     def version(self, value: str) -> None:
         self._parser["metadata"]["version"] = value

src/monas/project.py

@@ -94,7 +94,12 @@ def _get_metadata(self) -> Metadata:
     @property
     def canonical_name(self) -> str:
         """Get the project name"""
-        return canonicalize_name(self.path.name)
+        return canonicalize_name(self.metadata.package_name)
+
+    @property
+    def package_name(self) -> str:
+        """Get the project name"""
+        return self.metadata.package_name
 
     @property
     def version(self) -> str: