`pyssg.plugins.sitemap`

Sitemap plugin.

During evaluate_collections it scans every document page in the graph and materializes a single virtual page at /sitemap.xml whose body is a urlset listing each page's absolute URL (base_url + page url) and an optional <lastmod> derived from the document's frontmatter date.

This is the "summarizer fan-in" feature: the output depends on the whole set of document pages. Recomputation is deterministic (URLs sorted) and reads only declared inputs (no clock), so two builds are byte-identical and an incremental rebuild reuses cached output whenever the projection is unchanged.

`render_sitemap_xml(entries: list[tuple[str, str | None]]) -> str`

Build the urlset XML body from (url, lastmod) entries.

`build_sitemap(build: Build) -> None`

Create or update the virtual /sitemap.xml page in place.

`class SitemapPlugin`

Built-in sitemap.xml generator.

`SitemapPlugin.apply(self, builder: Builder) -> None`

`sitemap() -> SitemapPlugin`

Factory used in pyssg.config.py.