metronome/build.sh
Me Here 17053719f1 New Stage (foot-pedal) + Showcase (RGB pendulum); fix audio/visual sync
Sync: the visual playhead now advances on a latency-compensated clock
(currentTime − outputLatency||baseLatency) so the on-screen pulse lands when the
click is HEARD, not when it's queued — previously the visual could lead the audio
by the output buffer / Bluetooth latency (up to ~a subdivision). Applied to
editor, player, teacher, and the new pages; also bound the visual queue (vq trim).
No data races: single-threaded; only the rAF draw touches vqPtr/currentStep, and
each vq entry carries the exact scheduled time of its sound.

stage.html — foot-pedal stompbox: two heavy footswitches (Tap=tempo / hold=start-
stop, Next=item / hold=prev), 1/4" expression-pedal input → tempo sweep, big
floor-readable RGB beat light + angled TFT, analog instrument pass-through.
showcase.html — pyramid display piece: an RGB-light pendulum easing to each beat
plus per-lane segment rows showing subdivisions/accents/mutes (canvas).
Both: dual USB-C (data+power and power-thru) to daisy-chain off one source.

Wired into embed.js (stage, showcase variants), build.sh, deploy.sh, the
concepts gallery + landing cards, info-stage.html (~$52) + info-showcase.html
(~$39) with BOMs, and the README.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-28 08:40:20 -05:00

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#!/usr/bin/env bash
# Assemble the deployed single-file pages from source + shared partials + assets/.
#
# Every page (the landing index.html, the editor.html app, the device mockups and
# the info-*.html pages) is a source that shares code via markers:
# /*@BUILD:include:src/<file>@*/ inlines a shared partial (engine, seed lists, base CSS)
# @BUILD:favicon@ / @BUILD:logo-*@ / /*@BUILD:samples@*/{} inline base64 assets
# This resolves them so each built page in dist/ is one self-contained file
# (zero deps, works fully offline). deploy.sh runs this first. dist/ is generated —
# don't edit or commit it.
set -euo pipefail
cd "$(dirname "${BASH_SOURCE[0]}")"
mkdir -p dist
python3 - <<'PY'
import json, os, pathlib, re
A = pathlib.Path("assets")
SAMPLES = json.dumps(json.load(open(A / "samples.json")))
def build(name):
src = pathlib.Path(name).read_text()
# 1) inline shared partials (function-replacement: no backslash/group interpretation)
src = re.sub(r"/\*@BUILD:include:([^@]+)@\*/",
lambda m: pathlib.Path(m.group(1)).read_text().rstrip("\n"), src)
# 2) inline base64 assets
src = src.replace("@BUILD:favicon@", (A / "favicon.b64").read_text().strip())
src = src.replace("@BUILD:logo-dark@", (A / "logo-dark.b64").read_text().strip())
src = src.replace("@BUILD:logo-light@", (A / "logo-light.b64").read_text().strip())
src = src.replace("/*@BUILD:samples@*/{}", SAMPLES)
assert "@BUILD:" not in src, f"unresolved build marker(s) remain in {name}"
out = pathlib.Path("dist") / name
out.write_text(src)
return out.stat().st_size
for name in ("index.html","editor.html","player.html","teacher.html","stage.html","micro.html","showcase.html",
"concepts.html","embed.html",
"info-editor.html","info-initial.html","info-teacher.html","info-stage.html","info-micro.html","info-showcase.html"):
print("built %s (%dKB)" % (name, build(name) // 1024))
pathlib.Path("dist/embed.js").write_text(pathlib.Path("embed.js").read_text()) # loader, served as-is
print("copied embed.js")
PY