Configure the YAML mapper with FlockYamlFactory.builder()

[ctgnz]

Fourteen lines of DumperOptions and feature configuration become one:

ObjectMapper mapper = new ObjectMapper(FlockYamlFactory.builder().lineBreak(LineBreak.WIN).build());

The builder carries exactly what this file was assembling by hand — block default flow style, width 480, pretty flow and canonical off, MINIMIZE_QUOTES on, no document start marker, a 16 MiB code point limit — which is unsurprising, since those defaults were measured from this file and hallux's equivalent before being chosen.

The one call left is load-bearing

yaml-flock defaults to LF, deliberately: wanting CRLF is a property of a project whose files are already committed with CRLF rather than a property of YAML, so it is asked for rather than assumed. Without .lineBreak(WIN) every line of all three model.yml files would be rewritten on the first save — the churn the emitter exists to prevent.

Acceptance, unchanged from #155

All three model.yml files round-trip byte-identically through the builder-configured mapper:

IDENTICAL  jmsfx-standard     on disk=451788 written=451788
IDENTICAL  jmsfx-historical   on disk=40018  written=40018
IDENTICAL  jmsfx-battleorder  on disk=1043   written=1043

Checked in memory via writeLibraryModel, so nothing was written into the repo, and their on-disk SHA-256 hashes are unchanged after a full regeneration of all three libraries.

Regeneration still lands on the committed sources. Regenerating left 133 files differing in raw output; one spotless:apply returned every one of them, leaving a clean tree. #127's property holds.

That first result is worth more than it looks — it is yaml-flock#4's acceptance criterion exercised against real production data rather than against the library's own catalogue fixture. The fixture says the builder reproduces a hand-rolled configuration; a 451 KB model file written by the previous code and read back unchanged says it rather more convincingly.

Build

mvn -Pstandard verify and mvn -Phistorical verify both pass, Spotless check included.

Closes #157

🤖 Generated with Claude Code