osbuild: add new `"build":"container:..."` support #851

	name: Generate

	on: [pull_request, push]

	jobs:
	generate_documentation:
	name: "Documentation"
	runs-on: ubuntu-latest
	container:
	image: docker.io/library/python:3.7
	steps:
	- name: Install Dependencies
	run: \|
	pip install docutils

	- name: Clone repository
	uses: actions/checkout@v4
	with:
	path: osbuild

	- name: Generate Documentation
	run: \|
	make \
	-f osbuild/Makefile \
	SRCDIR=osbuild \
	BUILDDIR=build \
	RST2MAN=rst2man.py \
	man

	- name: Verify Documentation
	working-directory: build
	run: \|
	test -d docs
	test -f docs/osbuild.1

	generate_test_data:
	name: "Test Data"
	runs-on: ubuntu-latest
	env:
	OSBUILD_MPP_CACHEDIR: "/var/tmp/osbuild-mpp-cache"
	steps:
	- name: "Clone Repository"
	uses: actions/checkout@v4
	- name: Cache metadata
	uses: actions/cache@v4
	with:
	path: /var/tmp/osbuild-mpp-cache
	key: no-key-needed-here
	- name: "Regenerate Test Data"
	uses: osbuild/containers/src/actions/privdocker@552e30cf1b4ed19c6ddaa57f96c342b3dff4227b
	with:
	image: ghcr.io/osbuild/osbuild-ci:latest-202304251412
	run: \|
	make test-data
	git diff --exit-code -- ./test/data

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