apteryx pushed a commit to branch core-updates-frozen-batched-changes in repository guix.
commit 82599fb2256f6e9f6671c47834d79c1e8d19fe63 Author: Maxim Cournoyer <[email protected]> AuthorDate: Fri Oct 1 11:00:51 2021 -0400 gnu: Add python-flit-core. * gnu/packages/python-build.scm (python-flit-core): New variable. --- gnu/packages/python-build.scm | 51 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/gnu/packages/python-build.scm b/gnu/packages/python-build.scm index e55044d..57b56f6 100644 --- a/gnu/packages/python-build.scm +++ b/gnu/packages/python-build.scm @@ -27,6 +27,7 @@ #:use-module ((guix licenses) #:prefix license:) #:use-module (guix build-system python) #:use-module (guix download) + #:use-module (guix git-download) #:use-module (guix packages)) ;;; Commentary: @@ -298,3 +299,53 @@ implementation developed for Poetry. This project is intended to be a light weight, fully compliant, self-contained package allowing PEP 517 compatible build front-ends to build Poetry managed projects.") (license license:expat))) + +(define-public python-flit-core + ;; Use the latest commit of the 'zip-date-min-1980' branch, as it includes + ;; necessary fixes to the yet unreleased bootstrapping procedure defined in + ;; the flit_core/build_dists.py script. + (let ((revision "0") + (commit "47c1b48b307f4c89fe9178b1fca2282950e213cb") + (version* "3.3.0")) + (package + (name "python-flit-core") + (version (git-version version* revision commit)) + (source (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/takluyver/flit";) + (commit commit))) + (file-name (git-file-name name version)) + (sha256 + (base32 + "01vg6ir0gla5zb8539rxn8zmczly3d6qh2mcfpjkihxqvqlrs6gr")))) + (build-system python-build-system) + (propagated-inputs + `(("python-toml" ,python-toml))) + (arguments + ;; flit-core has a test suite, but it requires Pytest. Disable it so + ;; as to not pull pytest as an input. + `(#:tests? #f + #:phases + (modify-phases %standard-phases + (replace 'build + ;; flit-core requires itself to build. Luckily, a + ;; bootstrapping script exists, which does so using just + ;; the checkout sources and Python. + (lambda _ + (invoke "python" "flit_core/build_dists.py"))) + (replace 'install + (lambda* (#:key inputs outputs #:allow-other-keys) + (let ((out (assoc-ref outputs "out")) + (whl (car (find-files "." "\\.whl$")))) + (invoke "pip" "--no-cache-dir" "--no-input" + "install" "--no-deps" "--prefix" out whl)))) + ;; The sanity-check phase fails because flit depends on tomli at + ;; run-time, but this core variant avoids it to avoid a cycle. + (delete 'sanity-check)))) + (home-page "https://github.com/takluyver/flit";) + (synopsis "Core package of the Flit Python build system") + (description "This package provides @code{flit-core}, a PEP 517 build +backend for packages using Flit. The only public interface is the API +specified by PEP 517, @code{flit_core.buildapi}.") + (license license:bsd-3))))
