The repositories typed their Kysely statements against 159 table interfaces
written by hand, one or more per repository. Nothing compared them with the
schema: a migration that renamed a column or changed its type left them
stale while tsc stayed green, and several had already drifted
(reservations.accommodation_id is TEXT, not INTEGER).
scripts/generate-db-types.ts migrates a throwaway database with the real
migrations, reads every table back and writes one interface per table into
src/db/kysely/ plus the DB map in db.ts. Every hand-written interface is now
Pick<DB, ...> of that type, and npm run check:db-types fails when the
committed files no longer match the migrations.
A column an insert may leave out (rowid, DEFAULT, nullable) is
InsertOptional<T>, declared as ColumnType<T, T | void, T>. The server
compiles without strictNullChecks, where Kysely's own Generated<T> still
demands the column; that is why the old code kept separate insert-only
interfaces. The ids callers pass as number | string are cast to the column
type at the bind, so every statement binds the same value as before.
Each gate came with its npm script but ran nowhere. The server job now
runs lint:size, lint:boundaries and shared's contracts:open after the
shared build; the client job runs lint:warnings in place of lint:check
(it fails on errors the same way and also holds the warning count per
rule), then lint:format, lint:layers, lint:offline, lint:skips and
lint:i18n-keys. All of them are steps of jobs ci-ok already needs.
Both size baselines are taken on the merged branch. Four server files
grew while the other changes landed (the claimed reminder, the email
uniqueness error and the generator rule for an expression index) and
four client files by two or three lines with the plural forms; one
client file shrank and is lowered.
The client has had lint:size since #2612, the server had nothing, and
the server is where the biggest files live: maps.service.ts holds 3231
lines and grew by 200 in a month, and nine more services are past 1100.
scripts/size-lint.mjs carries the client's semantics over to src/ and
scripts/: a file may hold 1000 lines, the 23 that already hold more are
pinned at today's length in scripts/size-baseline.json, and --update
only ever lowers an entry.
A line past prettier's 120 columns counts once per 120 columns it spans,
so joining lines does not make room under the limit. The check fails
closed: a missing or malformed baseline or a missing src/ stops it
instead of passing with nothing checked.
Maurice