Files
bunext/dist/utils/page-lastmod-record.js
tbenandClaude Opus 5.5 3a75880ae4 Date sitemap lastmod from the build pipeline; warn on skipped pages
- bunext build records when each page's client bundle hash last changed
  in .bunext/page-lastmod.json (sitemap.lastmod_file to relocate). The
  hash covers the page's whole import graph, so component edits re-date
  every page that uses them. The sitemap uses these dates as lastmod
- Add sitemap.default_lastmod
- BREAKING: use_file_lastmod now defaults to false (file mtimes are reset
  by checkouts); it is a fallback after the build record
- Warn when a page or __root.tsx is skipped because its default export
  is not at the start of a line (e.g. export { Page as default })
- Replace leaking module mocks in tests (log, grab-root-file-path) with
  spies and fixtures

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-14 18:25:38 +01:00

52 lines
2.1 KiB
JavaScript

import { existsSync, mkdirSync, readFileSync, writeFileSync } from "fs";
import path from "path";
import grabDirNames from "./grab-dir-names";
import { log } from "./log";
/**
* # Path of the page last-modified record
*/
export function grabPageLastmodFile(lastmod_file) {
const { ROOT_DIR, PAGE_LASTMOD_JSON } = grabDirNames();
const target = lastmod_file || global.BUNEXT_CONFIG?.sitemap?.lastmod_file;
return target ? path.resolve(ROOT_DIR, target) : PAGE_LASTMOD_JSON;
}
export function readPageLastmodRecord(lastmod_file) {
const file = grabPageLastmodFile(lastmod_file);
if (!existsSync(file))
return;
try {
const record = JSON.parse(readFileSync(file, "utf-8"));
if (record?.pages && typeof record.pages == "object")
return record;
}
catch { }
log.warn(`Ignoring invalid page lastmod record ${file}`);
}
/**
* # Record when each page's client bundle last changed
* A page's bundle hash covers its whole client import graph (including
* the root layout), so a component edit re-dates every page that uses it.
* Unchanged pages keep their previous date; removed pages are dropped.
*/
export function updatePageLastmodRecord({ ctx_map, build_date = new Date(), lastmod_file, }) {
const prior = readPageLastmodRecord(lastmod_file);
const record = { pages: {} };
// Sorted so a committed record produces minimal diffs
const local_paths = Object.keys(ctx_map).sort();
for (const local_path of local_paths) {
const artifact = ctx_map[local_path];
if (!artifact?.hash)
continue;
const fingerprint = `${artifact.hash}:${artifact.css_path || ""}`;
const prior_page = prior?.pages[local_path];
record.pages[local_path] =
prior_page?.fingerprint == fingerprint
? prior_page
: { fingerprint, lastmod: build_date.toISOString() };
}
const file = grabPageLastmodFile(lastmod_file);
mkdirSync(path.dirname(file), { recursive: true });
writeFileSync(file, JSON.stringify(record, null, 4), "utf-8");
return record;
}