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kevinveenbirkenbachandClaude Opus 5
a9653698ce
The Cosmos section drew one diagram inside the README and truncated its
dependents at twelve. It is replaced by an `ARCHITECTURE.md` sub-page per
invokable role with four sections, and the README keeps only a link table.
Compose lists the containers with image and published ports. Swarm shows the
replica count and the effective placement constraint per service. Volumes
draws the decision chain `swarm_nfs_backed` walks instead of its outcome,
because whether a volume is NFS-backed depends on the mode, the storage
backend, the entry's own `nfs:` flag and the role's placement at once, and a
diagram stating only the result hides the coupling that makes a placement
change move data silently. Dependencies is the cosmos graph with the cap
removed, so `_DEPENDENTS_CAP`, `shown`, `overflow` and the `dpt_more` node are
gone.
Which containers a role runs cannot be read off `meta/services.yml`: it mixes
the role's own services with the ones it merely consumes, and the entries that
do describe a container carry `name`, or only `image`, or neither when the
image is built, so no field discriminates. A heuristic over that file dropped
`pds` from web-app-bluesky, five of six services from web-app-funkwhale and
the only service of web-svc-cdn. The new `services` module reads the
assignments that actually render a container, `{% set service_name = ... %}`,
resolving literals directly and constants through `vars/main.yml`; every
template in the tree that includes the container base carries one.
The page is written by its own unconditional loop in `__main__.py`, not gated
behind `--update-architecture`, so the documentation build cannot emit the
link table without the page it points at. `--check` compares instead of
writing. A committed copy is refused by
`test_no_role_commits_the_architecture_sub_page`, the rule the managed README
sections already follow.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
"""Derive the role-README section schema from the Jinja template.
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``templates/roles/README.md.j2.tmpl`` is the single source of truth. The
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required sections are the H2s the template emits with no optional context;
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the optional sections are the extra H2s that appear once every
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``{% if ... %}``-guarded variable is supplied. Rendering the template both
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ways and diffing the H2 sets keeps the lint and the generator in lock-step
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with the template.
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"""
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from __future__ import annotations
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import functools
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import jinja2
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from cli.build.docs.readme.sections import h2_titles
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from utils.cache.files import PROJECT_ROOT
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from utils.software import SOFTWARE_REPOSITORY
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TEMPLATE_DIR = PROJECT_ROOT / "templates" / "roles"
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TEMPLATE_NAME = "README.md.j2.tmpl"
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_REQUIRED_CTX: dict = {
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"application_id": "web-app-example",
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"application_name": "Example",
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"application_url": "https://example.com/",
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"application_description": "is an example application.",
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"application_overview": "This role deploys the example application.",
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"application_features": [{"name": "Example", "description": "An example feature."}],
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"application_author": "Kevin Veen-Birkenbach",
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"software_repository": SOFTWARE_REPOSITORY,
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"application_deploy_image": "ghcr.io/example/core/debian:latest",
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}
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_OPTIONAL_CTX: dict = {
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"application_invokable": True,
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"application_author_url": "https://social.infinito.nexus/profile/kevinveenbirkenbach/profile",
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"architecture_intro": "Example architecture intro.",
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"application_use_cases": "Example use case.",
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"application_developer_notes": [
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{"file": "Administration.md", "description": "notes."}
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],
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"application_further_resources": [
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{"label": "Example", "url": "https://example.com/"}
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],
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}
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def _render(ctx: dict) -> str:
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env = jinja2.Environment(
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loader=jinja2.FileSystemLoader(str(TEMPLATE_DIR)),
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keep_trailing_newline=True,
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autoescape=jinja2.select_autoescape(),
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)
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return env.get_template(TEMPLATE_NAME).render(**ctx)
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def render_required() -> str:
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return _render(dict(_REQUIRED_CTX))
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def render_full() -> str:
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return _render({**_REQUIRED_CTX, **_OPTIONAL_CTX})
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@functools.lru_cache(maxsize=1)
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def required_sections() -> tuple[str, ...]:
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"""H2 titles the template emits without any optional context (mandatory)."""
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return tuple(h2_titles(render_required()))
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@functools.lru_cache(maxsize=1)
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def canonical_order() -> tuple[str, ...]:
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"""Full H2 order (required + optional) as the template lays them out."""
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return tuple(h2_titles(render_full()))
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@functools.lru_cache(maxsize=1)
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def optional_sections() -> tuple[str, ...]:
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required = set(required_sections())
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return tuple(title for title in canonical_order() if title not in required)
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def credits_heading() -> str:
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"""The last required section (Credits by convention)."""
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return required_sections()[-1]
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