claude@clouddev1
eac7e5b81d
All eight implementation steps from ADR-0019's §"Order of
operations":
Step 1 — `src/friendly/` module skeleton; `t!()` macro; YAML
catalog loader (`include_str!` + `serde_yml`); `{name}`
substitution helper that rejects format specifiers per §8.4.
Step 2 — `error.*` catalog populated for UNIQUE / FK /
NOT NULL / CHECK / type-mismatch / not_found / already_exists /
generic / invalid_value, with verbose hints per
pedagogical-voice rule (§5). Anchor phrases (§10) preserved
verbatim.
Step 3 — `FriendlyError { headline, hint, diagnostic_table }`
+ renderer composing the three blocks per §7.
Step 4 — `translate(&DbError, &TranslateContext) → FriendlyError`.
Classifies by `SqliteErrorKind` first, then by message text
for the constraint family. `change column` failures route to
the type-mismatch headline, subsuming the previous
`friendly_change_column_engine_error` helper.
Step 5 — `DbError::friendly_message()` delegates to the
translator with default context. Removed
`friendly_change_column_engine_error` (absorbed) and
`enrich_fk_message` (FK list moves to the deferred re-query
step). One test rewritten to assert on the engine-classified
payload rather than the removed enrichment text.
Step 6 — `messages (short|verbose)` app-level command parallel
to `mode`. `App::messages_verbosity` (default verbose)
threaded into `TranslateContext` via
`App::build_translate_context`. `AppEvent::DslFailed` now
carries the structured `DbError`, plus the App extracts the
user's attempted value from `Command::Insert` / `Update`
to fill the `{value}` placeholder for UNIQUE / NOT NULL.
Step 7 — Catalog validator (§8.6) checks for missing keys,
unused/undeclared placeholders, format specifiers, and
forbidden engine vocabulary. `main.rs` parses the embedded
catalog at startup so a corrupted build artefact fails
loudly there rather than at the first `t!()` call.
Step 8 — Anchor phrases (§10) held: existing tests asserting
on "no such table", "already exists", "cannot be converted",
etc. all pass without rewording.
## Tally
603 tests passing (was 561: +42 net). Clippy clean with
nursery lints. Release binary 7.7 MB.
## Deliberately deferred
- Schema-aware enrichment for FK violations (parent_table /
parent_column / child_table) and the multi-value
natural-order INSERT case for UNIQUE. Both need the
Database handle in scope at translation time, so they
bundle naturally with the row-pinpoint re-query work
(ADR-0019 §6) — that follow-on adds runtime-side
enrichment via a `Database` lookup and a structured
failure-context carried on `DslFailed`. Until then,
unfilled placeholders render as their `{name}` form for
visual consistency with the catalog.
- Migration sweep (§9). Only `error.*` is catalog-driven so
far; `help.*`, `ok.*`, `client_side.*`, `replay.*`,
`parse.*`, modal labels, etc. migrate per-PR.
- Settings persistence for `messages`. In-session state for
now; waits on the future settings ADR.