fix: add a clear message that distributed rdataframe is not yet suppo… #473

	name: Needs C++ Release

	on:
	workflow_dispatch:
	push:
	branches:
	- main

	jobs:
	determine-source-date-epoch:
	name: "Determine SOURCE_DATE_EPOCH"
	runs-on: ubuntu-latest
	outputs:
	source-date-epoch: ${{ steps.log.outputs.source-date-epoch }}

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	fetch-depth: 0

	- id: log
	name: Compute SOURCE_DATE_EPOCH
	run: \|
	# Find latest unix timestamp in awkward-cpp, and the kernel generation files
	epoch=$( git log -1 --format=%at -- awkward-cpp kernel-specification.yml kernel-test-data.json )
	echo "source-date-epoch=$epoch" >> $GITHUB_OUTPUT


	check-cpp-on-pypi:
	name: "Check awkward-cpp dependency on PyPI"
	runs-on: ubuntu-latest
	needs: [determine-source-date-epoch]
	env:
	SOURCE_DATE_EPOCH: ${{ needs.determine-source-date-epoch.outputs.source-date-epoch }}

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true

	- name: Prepare build files
	run: pipx run nox -s prepare

	- name: Build awkward-cpp sdist
	run: pipx run build --sdist awkward-cpp

	- name: Check sdist matches PyPI
	run: pipx run nox -s check_cpp_sdist_released -- awkward-cpp/dist/awkward-cpp*.tar.gz

Provide feedback