Two efficiency findings from a code-review pass:
- The separated (--config X) and joined (--config=X) argument branches
duplicated ~20 lines of absolutize-if-relative path logic. Extracted
into abs_config_value(), used by both branches; the redundant
--config=/* special case falls out since the helper already passes
absolute paths through unchanged.
- The common single-file path spawned python3 twice per file (once for
abspath resolution, once for flatten()). flatten() now optionally
takes a tmpdir arg and does both in one process. The per-file loop
under a directory argument is unchanged — that path wasn't flagged.
agent-audit's copy is canonical; skill-audit's copy was regenerated via
scripts/sync-vale-styles.sh, not hand-edited, to guarantee byte parity.
No hardening (bash 3.2 compat, surrogateescape, symlink guards) touched.
Verified: tests/test-vale-wrap.sh 39/39, check-vale-style-sync.sh clean,
full suite 12/12.
Defame1297
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