client/package.json has had a format:check script, but no workflow runs
it, and 2144 of the 2171 .ts, .tsx and .css files under src/ and tests/
differ from what .prettierrc asks for. Without a formatter gate the line
count in lint:size could also be gamed, and every new file picked its
own layout.
Formatting everything in one commit would bury the history, so lint:format
lists today's unformatted files in scripts/format-baseline.json and only
lets the list shrink: a file outside it, any new file in particular, must
be formatted, and a listed file that has been formatted must leave the
list (--update takes it off and never adds one). A stale entry fails the
check, since it would let the next file at that path in unformatted.
The check runs Prettier through its API with the config that applies to
each file and reads the text with LF line ends, so a Windows checkout
agrees with CI about endOfLine. A file Prettier cannot parse counts as
unformatted, and a missing config stops the run.
rtl-lint compared its own path with argv[1] to decide whether it was
the command being run. Started through a symlink or with a path that
differs in its form, it printed nothing and exited 0. The check now
lives in scripts/lib/rtl.mjs and the command file always runs it.
A broken rtl-baseline.json read as empty, so --update would have
written {} over it. It now stops the run with its reason, like
size-baseline.json.
The rtl-lint-disable marker skipped a line wherever it appeared, inside
a string literal too, and nothing bounded how often it was used. It is
now honoured only inside a comment, and the marked lines are counted
per file against scripts/rtl-disable-baseline.json. Today that is the
four map overlay positions in PlanMapStage.tsx. A side that is geometry
on purpose still gets its marker, but its entry is raised by hand, where
review sees it, instead of the marker quietly replacing the logical
forms.
lint:size counted newlines, so a file could stay under its entry by
joining lines, and the trip planner page already carried one JSX element
on a single 3760 character line. A line now counts once per 120
characters it spans, the printWidth in .prettierrc, so formatted code
measures what it shows and packed code measures what it holds.
The check also covered only .ts and .tsx sources. Stylesheets now share
the 1000 line limit, and tests get a limit of their own at 2000: they
mirror the component they cover and carry fixtures, but the largest are
past 5000 lines and growing with the god components.
The baseline is measured again with the new rule and keyed by the path
from client/, since it now spans src/ and tests/. Entries are higher in
number than before because the metric changed, not because a file grew;
every file is held at exactly what it holds today. New entries are the
ten largest tests, index.css and studio.css, the generated
countryShapes.ts (305 lines of 2600 characters each) and
JourneyDetailPageEntryEditor.tsx, which was just under the old count.
The scanning, baseline reading and lowering move to scripts/lib/ so the
next ratchets share them. A baseline that is missing or misshapen, a
directory that is not there and a scan that finds nothing now fail the
run instead of reading as empty, and the command file always runs its
check: there is no entry point guard left that could skip it.
Maurice