1e2b6695cf
When a PEP 517 project file is present, pip will not install prerequisites in `site-packages`: https://pip.pypa.io/en/stable/reference/pip/#pep-517-and-518-support For the shell hook, this has the consequence that the generated temporary directory that is added to PYTHONPATH does not contain `site.py`. As a result, Python does not discover the Python module. Thus when a user executes nix-shell in a project, they cannot import the project's Python module. This change adds the `--no-build-isolation` option to pip when creating the editable environment, to correctly generate `site.py`, even when a `pyproject.toml` is present.
48 lines
1.3 KiB
Bash
48 lines
1.3 KiB
Bash
# Setup hook for setuptools.
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echo "Sourcing setuptools-build-hook"
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setuptoolsBuildPhase() {
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echo "Executing setuptoolsBuildPhase"
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local args
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runHook preBuild
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cp -f @setuppy@ nix_run_setup
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args=""
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if [ -n "$setupPyGlobalFlags" ]; then
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args+="$setupPyGlobalFlags"
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fi
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if [ -n "$setupPyBuildFlags" ]; then
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args+="build_ext $setupPyBuildFlags"
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fi
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eval "@pythonInterpreter@ nix_run_setup $args bdist_wheel"
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runHook postBuild
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echo "Finished executing setuptoolsBuildPhase"
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}
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setuptoolsShellHook() {
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echo "Executing setuptoolsShellHook"
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runHook preShellHook
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if test -e setup.py; then
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tmp_path=$(mktemp -d)
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export PATH="$tmp_path/bin:$PATH"
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export PYTHONPATH="$tmp_path/@pythonSitePackages@:$PYTHONPATH"
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mkdir -p "$tmp_path/@pythonSitePackages@"
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eval "@pythonInterpreter@ -m pip install -e . --prefix $tmp_path \
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--no-build-isolation >&2"
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fi
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runHook postShellHook
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echo "Finished executing setuptoolsShellHook"
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}
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if [ -z "${dontUseSetuptoolsBuild-}" ] && [ -z "${buildPhase-}" ]; then
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echo "Using setuptoolsBuildPhase"
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buildPhase=setuptoolsBuildPhase
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fi
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if [ -z "${dontUseSetuptoolsShellHook-}" ] && [ -z "${shellHook-}" ]; then
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echo "Using setuptoolsShellHook"
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shellHook=setuptoolsShellHook
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fi
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