mix erlfmt (mob v0.6.0)

Format .erl files (or check formatting with --check).

Wraps erlfmt's library API. Exists because the upstream erlfmt Hex package ships an escript build but no mix task; the project's pre-commit checklist (CLAUDE.md) references mix erlfmt --check src/ so this task makes that instruction actually work.

Usage

mix erlfmt --check src/         # exit 0 if clean, exit 1 if any file would change
mix erlfmt --write src/         # rewrite files in place

Either --check or --write is required. Paths can be files or directories; directories are walked for *.erl files.