8000 install build in target environment by dholth · Pull Request #30 · dholth/conda-pupa · GitHub
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install build in target environment #30

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Merged
merged 2 commits into from
Mar 27, 2025
Merged

install build in target environment #30

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55b99b6
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dholth Mar 6, 2025
bf516a0
install dependency checker dependencies if necessary
dholth Mar 27, 2025
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10 changes: 9 additions & 1 deletion conda_pupa/build.py
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,15 @@ def build_pypa(
builder = ProjectBuilder(path, python_executable=python_executable)

build_system_requires = builder.build_system_requires
missing = dependencies.check_dependencies(build_system_requires, prefix=prefix)
for _retry in range(2):
try:
missing = dependencies.check_dependencies(
build_system_requires, prefix=prefix
)
break
except dependencies.MissingDependencyError as e:
dependencies.ensure_requirements(e.dependencies, prefix=prefix)

print("Installing requirements for build system:", missing)
# does flatten() work for a deeper dependency chain?
dependencies.ensure_requirements(flatten(missing), prefix=prefix)
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21 changes: 16 additions & 5 deletions conda_pupa/dependencies.py
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Expand Up @@ -6,7 +6,6 @@
import importlib.resources
import json
import subprocess
import sys
from pathlib import Path
from typing import Iterable

Expand All @@ -16,6 +15,15 @@
from .translate import requires_to_conda


class MissingDependencyError(Exception):
"""
When the dependency subprocess can't run.
"""

def __init__(self, dependencies: list[str]):
self.dependencies = dependencies


def check_dependencies(requirements: Iterable[str], prefix: Path):
python_executable = str(paths.get_python_executable(prefix))
dependency_getter = importlib.resources.read_text(
Expand All @@ -36,10 +44,13 @@ def check_dependencies(requirements: Iterable[str], prefix: Path):
check=True,
)
missing = json.loads(result.stdout)
except subprocess.SubprocessError as e:
# XXX what exception to raise?
print(e, file=sys.stderr)
return []
except subprocess.CalledProcessError as e:
if (
"ModuleNotFound" in e.stderr
): # Missing 'build' dependency aka 'python-build' in conda land
raise MissingDependencyError(["build"]) from e
else:
raise

return missing

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6 changes: 3 additions & 3 deletions pyproject.toml
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Expand Up @@ -23,13 +23,13 @@ classifiers = [
dynamic = ["version"]
requires-python = ">=3.7"
dependencies = [
"build", # conda name is python-build
"build", # conda name is python-build
"conda-index",
"conda-libmamba-solver >=24.9",
"conda-package-streaming >=0.11",
"installer >=0.7", # conda name is python-installer
"installer >=0.7", # conda name is python-installer
"packaging >=24",
"unearth >=0.17.2", # download packages from pypi
"unearth >=0.17.2", # download packages from pypi
]

[project.optional-dependencies]
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