Deprecate the provisional %{pyproject_build_lib} macro

There is no scheduled removal.

See https://lists.fedoraproject.org/archives/list/python-devel@lists.fedoraproject.org/thread/HMLOPAU3RZLXD4BOJHTIPKI3I4U6U7OE/

Related: rhbz#2208971
This commit is contained in:
Miro Hrončok 2023-04-18 11:55:52 +02:00
parent fb9a851ec3
commit ccc11a3af7
3 changed files with 19 additions and 87 deletions

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@ -336,91 +336,6 @@ These arguments are still required:
Multiple subpackages are generated when multiple names are provided.
PROVISIONAL: Importing just-built (extension) modules in %build
---------------------------------------------------------------
Sometimes, it is desired to be able to import the *just-built* extension modules
in the `%build` section, e.g. to build the documentation with Sphinx.
%build
%pyproject_wheel
... build the docs here ...
With pure Python packages, it might be possible to set `PYTHONPATH=${PWD}` or `PYTHONPATH=${PWD}/src`.
However, it is a bit more complicated with extension modules.
The location of just-built modules might differ depending on Python version, architecture, pip version, etc.
Hence, the macro `%{pyproject_build_lib}` exists to be used like this:
%build
%pyproject_wheel
PYTHONPATH=%{pyproject_build_lib} ... build the docs here ...
This macro is currently **provisional** and the behavior might change.
Please subscribe to Fedora's [python-devel list] if you use the macro.
The `%{pyproject_build_lib}` macro expands to an Shell `$(...)` expression and does not work when put into single quotes (`'`).
Depending on the pip version, the expanded value will differ:
[python-devel list]: https://lists.fedoraproject.org/archives/list/python-devel@lists.fedoraproject.org/
### New pip 21.3+ with in-tree-build and setuptools 62.1+ (Fedora 37+)
Always use the macro from the same directory where you called `%pyproject_wheel` from.
The value will expand to something like:
* `/builddir/build/BUILD/%{name}-%{version}/build/lib.linux-x86_64-cpython-311` for wheels with extension modules
* `/builddir/build/BUILD/%{name}-%{version}/build/lib` for pure Python wheels
If multiple wheels were built from the same directory,
some pure Python and some with extension modules,
the expanded value will be combined with `:`:
* `/builddir/build/BUILD/%{name}-%{version}/build/lib.linux-x86_64-cypthon-311:/builddir/build/BUILD/%{name}-%{version}/build/lib`
If multiple wheels were built from different directories,
the value will differ depending on the current directory.
### New pip 21.3+ with in-tree-build and older setuptools (Fedora 36)
Always use the macro from the same directory where you called `%pyproject_wheel` from.
The value will expand to something like:
* `/builddir/build/BUILD/%{name}-%{version}/build/lib.linux-x86_64-3.10` for wheels with extension modules
* `/builddir/build/BUILD/%{name}-%{version}/build/lib` for pure Python wheels
If multiple wheels were built from the same directory,
some pure Python and some with extension modules,
the expanded value will be combined with `:`:
* `/builddir/build/BUILD/%{name}-%{version}/build/lib.linux-x86_64-3.10:/builddir/build/BUILD/%{name}-%{version}/build/lib`
If multiple wheels were built from different directories,
the value will differ depending on the current directory.
### Older pip with out-of-tree-build (Fedora 35 and EL 9)
The value will expand to something like:
* `/builddir/build/BUILD/%{name}-%{version}/.pyproject-builddir/pip-req-build-xxxxxxxx/build/lib.linux-x86_64-3.10` for wheels with extension modules
* `/builddir/build/BUILD/%{name}-%{version}/.pyproject-builddir/pip-req-build-xxxxxxxx/build/lib` for pure Python wheels
Note that the exact value is **not stable** between builds
(the `xxxxxxxx` part is randomly generated,
neither you should consider the `.pyproject-builddir` directory to remain stable).
If multiple wheels are built,
the expanded value will always be combined with `:` regardless of the current directory, e.g.:
* `/builddir/build/BUILD/%{name}-%{version}/.pyproject-builddir/pip-req-build-xxxxxxxx/build/lib.linux-x86_64-3.10:/builddir/build/BUILD/%{name}-%{version}/.pyproject-builddir/pip-req-build-yyyyyyyy/build/lib.linux-x86_64-3.10:/builddir/build/BUILD/%{name}-%{version}/.pyproject-builddir/pip-req-build-zzzzzzzz/build/lib`
**Note:** If you manage to build some wheels with in-tree-build and some with out-of-tree-build option,
the expanded value will contain all relevant directories.
Limitations
-----------
@ -473,6 +388,12 @@ so be prepared for problems.
[pip's documentation]: https://pip.pypa.io/en/stable/cli/pip_install/#vcs-support
Deprecated
----------
The `%{pyproject_build_lib}` macro is deprecated, don't use it.
Testing the macros
------------------

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@ -34,7 +34,14 @@ CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}" TMPDI
}
%pyproject_build_lib %{expand:\\\
%pyproject_build_lib %{!?__pyproject_build_lib_warned:%{warn:The %%{pyproject_build_lib} macro is deprecated.
It only works with setuptools and is not build-backend-agnostic.
The macro is not scheduled for removal, but there is a possibility of incompatibilities with future versions of setuptools.
As a replacement for the macro for the setuptools backend on Fedora 37+, you can use $PWD/build/lib for pure Python packages,
or $PWD/build/lib.%%{python3_platform}-cpython-%%{python3_version_nodots} for packages with extension modules.
Other build backends and older distributions may need different paths.
See https://lists.fedoraproject.org/archives/list/python-devel@lists.fedoraproject.org/thread/HMLOPAU3RZLXD4BOJHTIPKI3I4U6U7OE/ for details.
}%{global __pyproject_build_lib_warned 1}}%{expand:\\\
$(
pyproject_build_lib=()
if [ -d build/lib.%{python3_platform}-cpython-%{python3_version_nodots} ]; then

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@ -12,7 +12,7 @@ License: MIT
# Increment Y and reset Z when new macros or features are added
# Increment Z when this is a bugfix or a cosmetic change
# Dropping support for EOL Fedoras is *not* considered a breaking change
Version: 1.7.0
Version: 1.8.0
Release: 1%{?dist}
# Macro files
@ -149,6 +149,10 @@ export HOSTNAME="rpmbuild" # to speedup tox in network-less mock, see rhbz#1856
%changelog
* Tue Apr 18 2023 Miro Hrončok <mhroncok@redhat.com> - 1.8.0-1
- Deprecate the provisional %%{pyproject_build_lib} macro
- See https://lists.fedoraproject.org/archives/list/python-devel@lists.fedoraproject.org/thread/HMLOPAU3RZLXD4BOJHTIPKI3I4U6U7OE/
* Fri Mar 31 2023 Miro Hrončok <mhroncok@redhat.com> - 1.7.0-1
- %%pyproject_buildrequires: Redirect stdout to stderr via Shell
- Dependencies are recorded to a text file that is catted at the end