feat: --format html — visual triage report with per-file spectrum plots (v1.3.0)#45
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…ts (v1.3.0) Adds a fourth report format: a single self-contained HTML page you open in a browser. Two parts: a sortable/filterable triage table, and a detail card with an inline-SVG spectrum plot for every flagged file, so the MP3 "cliff" (a sharp magnitude drop well below Nyquist) is visible to the eye, with the detected cutoff marked. Design: no new dependency (numpy is already core; the curve is drawn as a hand-rolled inline <svg> polyline — no matplotlib, no PNGs). The core analysis path is untouched — spectra are recomputed at report time and only for flagged files, so the per-file result dict carries no extra payload and json/csv stay lean. A file not natively readable simply shows no plot; the report never fails because one curve could not render. - New reporting/html_reporter.py (HTMLReporter, exported from the package). - Wire --format html (argparse choice + dispatch + .html extension). - Refactor the format dispatch out of generate_final_report into _write_report to keep it within the C901 complexity budget. - Tests in tests/test_html_reporter.py (structure, ranking, escaping, SVG render for a readable flagged file, graceful placeholder, curve shape). - Docs: README + user-guide; version bump 1.2.0 -> 1.3.0 across the repo. Backward compatible; no detection-logic change. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What & why
The reports told you which files were suspect (text/csv) or handed raw numbers to a script (json). This adds a way to see why — a fourth format,
--format html: a single self-contained page you double-click to open.Two parts:
This is also the microscope for eyeballing band-limited false-positives and validating field findings.
Design (lightweight, on-brand)
<svg>polyline — no matplotlib, no PNGs, no base64.Changes
reporting/html_reporter.py(HTMLReporter, exported fromflac_detective.reporting).--format html(argparse choice + dispatch +.htmlextension).generate_final_reportinto_write_report(keeps it within the C901 budget).tests/test_html_reporter.py— structure, ranking, HTML escaping, SVG render for a readable flagged file, graceful placeholder, curve shape.Verification
black --check,isort --check-only,flake8,mypyall clean.pytest(excl. integration/benchmarks): 163 passed, 8 pre-existing skips.flac-detective <dir> --format htmlwrites a valid.html; SVG rendering covered by a unit test on a synthetic band-limited file.Backward compatible; no detection-logic change.
🤖 Generated with Claude Code