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Ensure PythonExtension is consistent when finding externals (#40012)

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PythonExtension is a base class for PythonPackage, and
is meant to be used for any package that is a Python
extension but is not built using "python_pip".

The "update_external_dependency" method in the base
class calls another method that is defined in the derived
class.

Push "get_external_python_for_prefix" up in the hierarchy
to make method calls consistent.
This commit is contained in:
Massimiliano Culpo 2023-09-14 18:26:40 +02:00 committed by GitHub
parent 6a249944f5
commit 34402beeb7
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1 changed files with 41 additions and 41 deletions
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82
lib/spack/spack/build_systems/python.py
View File

@ -229,6 +229,47 @@ def update_external_dependencies(self, extendee_spec=None):
python._mark_concrete()
self.spec.add_dependency_edge(python, depflag=dt.BUILD | dt.LINK | dt.RUN, virtuals=())
def get_external_python_for_prefix(self):
"""
For an external package that extends python, find the most likely spec for the python
it depends on.
First search: an "installed" external that shares a prefix with this package
Second search: a configured external that shares a prefix with this package
Third search: search this prefix for a python package
Returns:
spack.spec.Spec: The external Spec for python most likely to be compatible with self.spec
"""
python_externals_installed = [
s for s in spack.store.STORE.db.query("python") if s.prefix == self.spec.external_path
]
if python_externals_installed:
return python_externals_installed[0]
python_external_config = spack.config.get("packages:python:externals", [])
python_externals_configured = [
spack.spec.parse_with_version_concrete(item["spec"])
for item in python_external_config
if item["prefix"] == self.spec.external_path
]
if python_externals_configured:
return python_externals_configured[0]
python_externals_detection = spack.detection.by_path(
["python"], path_hints=[self.spec.external_path]
)
python_externals_detected = [
d.spec
for d in python_externals_detection.get("python", [])
if d.prefix == self.spec.external_path
]
if python_externals_detected:
return python_externals_detected[0]
raise StopIteration("No external python could be detected for %s to depend on" % self.spec)
class PythonPackage(PythonExtension):
"""Specialized class for packages that are built using pip."""
@ -274,47 +315,6 @@ def list_url(cls):
name = cls.pypi.split("/")[0]
return "https://pypi.org/simple/" + name + "/"
def get_external_python_for_prefix(self):
"""
For an external package that extends python, find the most likely spec for the python
it depends on.
First search: an "installed" external that shares a prefix with this package
Second search: a configured external that shares a prefix with this package
Third search: search this prefix for a python package
Returns:
spack.spec.Spec: The external Spec for python most likely to be compatible with self.spec
"""
python_externals_installed = [
s for s in spack.store.STORE.db.query("python") if s.prefix == self.spec.external_path
]
if python_externals_installed:
return python_externals_installed[0]
python_external_config = spack.config.get("packages:python:externals", [])
python_externals_configured = [
spack.spec.parse_with_version_concrete(item["spec"])
for item in python_external_config
if item["prefix"] == self.spec.external_path
]
if python_externals_configured:
return python_externals_configured[0]
python_externals_detection = spack.detection.by_path(
["python"], path_hints=[self.spec.external_path]
)
python_externals_detected = [
d.spec
for d in python_externals_detection.get("python", [])
if d.prefix == self.spec.external_path
]
if python_externals_detected:
return python_externals_detected[0]
raise StopIteration("No external python could be detected for %s to depend on" % self.spec)
@property
def headers(self):
"""Discover header files in platlib."""