37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
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# 260613 — Foswiki deep dive (store abstraction, extension API, ecosystem)
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Date: 2026-06-13
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## What this is
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A focused study of **Foswiki** — the community fork of TWiki (2008, from TWiki
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4.2.x) — concentrating on **what Foswiki changed**, not the lineage it shares with
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TWiki. The distinctive material: a **pluggable `Foswiki::Store` backend**
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(RcsWrap / RcsLite / **PlainFileStoreContrib**) behind a versioned interface, the
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`Foswiki::Meta` topic-object indirection, the OO/MVC core rewrite, the cleaner
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`Foswiki::Func` + `registerTagHandler` extension API, **DataForms** (+ MetaDataPlugin,
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FlexFormPlugin), and the **WysiwygPlugin** TML↔HTML round-trip.
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Read through shard-wiki's lens: Foswiki is the engine that **already separates its
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store backend from its core via a versioned interface** — i.e. it is concrete prior
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art for shard-wiki's own *shard adapter contract* and *capability-aware adapters*.
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Pairs with — and deliberately does not repeat — the shared TWiki material:
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- `research/260613-twiki-deep-dive/` — flat-file/RCS store, Webs/Topics, plugin
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handler callbacks, per-topic ACL (all inherited; read there for the shared parts)
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- `research/260613-xwiki-deep-dive/` — the Java/DB app-platform sibling
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- `research/260608-wikiengines-overview/` — landscape scan
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## Contents
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| Path | Role |
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|------|------|
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| `findings.md` | Distinctives vs TWiki, store abstraction, extension API, DataForms, capability profile, INTENT mapping, UC seeds, sources |
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## Status
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Initial deep dive complete. Two new use cases promoted to
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`spec/UseCaseCatalog.md` (UC-42, UC-43); UC-34/39/40 enriched. The
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`Foswiki::Store`/`Foswiki::Meta` abstraction is logged as adapter-contract prior art
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for `workplans/SHARD-WP-0002-federation-architecture.md`.
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