Daan MeijerandClaude Opus 5.5
be8a3d4580
Spotnet (CONCEPT D29): - Index free.pt fully and import spots with their descriptions, categories and NZBs; a spot renames its release, since Spotnet names are more trustworthy than names derived from subjects. - Find passwords in spot descriptions too, and tell "needs a password we have" from "needs a password we don't have". Content inspection: - List the contents of 7z (.7z.001) archives, SFV sets, nicovideo uploads and other archive-like files; mark yEncBin .bin containers as encrypted. - Take real names from yEnc headers for randomly named files, and merge uploads that were split across posts. Storage (D31, D32): - Store segment lists zstd-compressed behind the FileStore accessor. - group:backfill indexes older headers at low priority and pauses when the NVMe or HDD part of the database gets too large. Grouping (D35, D36): - Lone header segments wait in staged_segments until a second segment of their file arrives, which drops the per-article junk binaries. - Counter grouping joins random-subject uploads by poster, [i/M] counter, part count and day. Search and maintenance (D33, D34): - A trigram-indexed search_text column, smaller indexes, estimated stats. - Passes that clean up nonsense names; weekly index maintenance; GC budgets per kind. - Web UI: grey out stale results while a search runs and cancel superseded requests. Count only up to 1,000 matches for the page, which made filter clicks take seconds (Newznab keeps the 10,000 cap). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
28 lines
879 B
TypeScript
28 lines
879 B
TypeScript
/**
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* The article number where a group's posts reach `target` (ms since epoch),
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* by binary search between `first` and `last`. Article numbers only roughly
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* follow posting time, so the answer is within `precision` articles of the
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* first one posted at or after `target`.
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*
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* `dateOf(n)` returns the posting time of the first article at or after `n`
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* that still exists, or null when there is none nearby (expired or removed);
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* a gap counts as older than `target`.
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*/
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export async function articleAtDate(
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first: bigint,
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last: bigint,
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target: number,
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dateOf: (n: bigint) => Promise<number | null>,
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precision = 10_000n
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): Promise<bigint> {
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let lo = first
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let hi = last
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while (hi - lo > precision) {
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const mid = lo + (hi - lo) / 2n
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const date = await dateOf(mid)
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if (date === null || date < target) lo = mid
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else hi = mid
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}
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return lo
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}
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