Files
meshcore-bot-firmware/scripts/parse-size-report.py
2026-05-14 21:52:07 -06:00

261 lines
9.4 KiB
Python

#!/usr/bin/env python3
import argparse
import json
import re
from datetime import datetime, timezone
from pathlib import Path
ANSI_RE = re.compile(r"\x1b\[[0-9;?]*[ -/]*[@-~]")
RAM_RE = re.compile(
r"RAM:\s+\[[^\]]*\]\s+\s*[0-9.]+%\s+\(used\s+([0-9]+)\s+bytes\s+from\s+([0-9]+)\s+bytes\)",
re.IGNORECASE,
)
FLASH_RE = re.compile(
r"Flash:\s+\[[^\]]*\]\s+\s*[0-9.]+%\s+\(used\s+([0-9]+)\s+bytes\s+from\s+([0-9]+)\s+bytes\)",
re.IGNORECASE,
)
def strip_ansi(text):
return ANSI_RE.sub("", text)
def metric_from_match(match):
if not match:
return None, None
return int(match.group(1)), int(match.group(2))
def parse_log(path):
if not path.exists():
return None, None, None, None, False
text = strip_ansi(path.read_text(errors="replace"))
ram_match = None
flash_match = None
for match in RAM_RE.finditer(text):
ram_match = match
for match in FLASH_RE.finditer(text):
flash_match = match
ram_used, ram_total = metric_from_match(ram_match)
flash_used, flash_total = metric_from_match(flash_match)
return ram_used, ram_total, flash_used, flash_total, bool(ram_match and flash_match)
def artifact_sizes(artifact_dir, env):
sizes = {}
if not artifact_dir.exists():
return sizes
for path in sorted(artifact_dir.glob(f"{env}-*")):
if path.is_file():
sizes[path.name] = path.stat().st_size
return sizes
def load_baseline(path):
data = json.loads(path.read_text())
return {entry["env"]: entry for entry in data.get("environments", [])}
def artifact_kind(name):
path = Path(name)
suffix = path.suffix.lstrip(".") or "no_extension"
if path.stem.endswith("-merged") and suffix == "bin":
return "merged.bin"
return suffix
def artifact_kind_sizes(artifacts):
sizes = {}
for name, size in artifacts.items():
sizes[artifact_kind(name)] = size
return sizes
def add_delta(entry, baseline_by_env):
baseline = baseline_by_env.get(entry["env"])
if not baseline:
return
delta = {}
for key in ("ram_used", "flash_used"):
current_value = entry.get(key)
baseline_value = baseline.get(key)
if current_value is not None and baseline_value is not None:
delta[key] = current_value - baseline_value
else:
delta[key] = None
baseline_artifacts = artifact_kind_sizes(baseline.get("artifact_bytes", {}))
current_artifacts = artifact_kind_sizes(entry.get("artifact_bytes", {}))
artifact_delta = {}
for suffix, current_size in current_artifacts.items():
baseline_size = baseline_artifacts.get(suffix)
artifact_delta[suffix] = current_size - baseline_size if baseline_size is not None else None
delta["artifact_bytes_by_kind"] = artifact_delta
entry["delta"] = delta
def metric_limit(config, metric, level):
value = config.get(metric, {})
if isinstance(value, dict):
return value.get(f"{level}_delta", value.get(level))
return None
def env_threshold_config(thresholds, env):
config = dict(thresholds.get("defaults", {}))
config.update(thresholds.get("environments", {}).get(env, {}))
return config
def evaluate_thresholds(summary, thresholds):
checks = []
status = "ok"
for entry in summary["environments"]:
delta = entry.get("delta")
if not delta:
checks.append({"env": entry["env"], "status": "not_evaluated", "reason": "no baseline delta"})
continue
config = env_threshold_config(thresholds, entry["env"])
for metric in ("flash_used", "ram_used"):
value = delta.get(metric)
if value is None:
checks.append({"env": entry["env"], "metric": metric, "status": "not_evaluated", "reason": "missing delta"})
continue
warn_limit = metric_limit(config, metric, "warn")
fail_limit = metric_limit(config, metric, "fail")
check_status = "ok"
if fail_limit is not None and value > fail_limit:
check_status = "fail"
status = "fail"
elif warn_limit is not None and value > warn_limit:
check_status = "warn"
if status == "ok":
status = "warn"
checks.append({
"env": entry["env"],
"metric": metric,
"delta": value,
"warn_delta": warn_limit,
"fail_delta": fail_limit,
"status": check_status,
})
artifact_config = config.get("artifact_bytes_by_kind", {})
for kind, value in delta.get("artifact_bytes_by_kind", {}).items():
limits = artifact_config.get(kind, {})
warn_limit = limits.get("warn_delta", limits.get("warn"))
fail_limit = limits.get("fail_delta", limits.get("fail"))
check_status = "ok"
if fail_limit is not None and value > fail_limit:
check_status = "fail"
status = "fail"
elif warn_limit is not None and value > warn_limit:
check_status = "warn"
if status == "ok":
status = "warn"
checks.append({
"env": entry["env"],
"metric": f"artifact_bytes_by_kind.{kind}",
"delta": value,
"warn_delta": warn_limit,
"fail_delta": fail_limit,
"status": check_status,
})
return {"status": status, "checks": checks}
def report_lines(summary):
lines = [f"Size summary ({summary['mode']})"]
for entry in summary["environments"]:
lines.append(f"- {entry['env']}:")
lines.append(f" RAM: {entry['ram_used']} / {entry['ram_total']} bytes")
lines.append(f" Flash: {entry['flash_used']} / {entry['flash_total']} bytes")
if entry.get("delta"):
delta = entry["delta"]
lines.append(f" Delta: RAM {delta.get('ram_used')} bytes, flash {delta.get('flash_used')} bytes")
for name, size in sorted(entry.get("artifact_bytes", {}).items()):
lines.append(f" Artifact: {name} = {size} bytes")
thresholds = summary.get("thresholds")
if thresholds:
lines.append(f"Threshold status: {thresholds['status']}")
for check in thresholds["checks"]:
if check["status"] == "ok":
continue
reason = check.get("reason", "")
metric = check.get("metric", "all")
delta = check.get("delta", "n/a")
lines.append(f"- {check['env']} {metric}: {check['status']} delta={delta} {reason}".rstrip())
return lines
def build_summary(args):
log_dir = args.logs
artifact_dir = args.artifacts
envs = args.env or sorted(path.stem for path in log_dir.glob("*.log"))
baseline_by_env = load_baseline(args.compare) if args.compare else {}
entries = []
for env in envs:
log_path = log_dir / f"{env}.log"
ram_used, ram_total, flash_used, flash_total, metrics_found = parse_log(log_path)
entry = {
"env": env,
"ram_used": ram_used,
"ram_total": ram_total,
"flash_used": flash_used,
"flash_total": flash_total,
"artifact_bytes": artifact_sizes(artifact_dir, env),
"log": str(log_path),
"metrics_found": metrics_found,
}
add_delta(entry, baseline_by_env)
entries.append(entry)
mode = "compare" if args.compare else "baseline" if args.baseline else "summary"
return {
"mode": mode,
"generated_at": datetime.now(timezone.utc).replace(microsecond=0).isoformat().replace("+00:00", "Z"),
"environments": entries,
}
def main():
parser = argparse.ArgumentParser(description="Parse PlatformIO size output and firmware artifact sizes.")
parser.add_argument("--logs", type=Path, required=True, help="Directory containing <env>.log files")
parser.add_argument("--artifacts", type=Path, required=True, help="Directory containing copied firmware artifacts")
parser.add_argument("--env", action="append", help="Environment name to include; may be passed more than once")
parser.add_argument("--baseline", action="store_true", help="Mark output as a baseline summary")
parser.add_argument("--compare", type=Path, help="Baseline JSON to compare against")
parser.add_argument("--thresholds", type=Path, help="JSON file with warn/fail size delta thresholds")
parser.add_argument("--enforce-thresholds", action="store_true", help="Exit nonzero when threshold status is fail")
parser.add_argument("--report", type=Path, help="Write a human-readable size report to this path")
parser.add_argument("--output", type=Path, help="Write JSON summary to this path")
args = parser.parse_args()
summary = build_summary(args)
if args.thresholds:
thresholds = json.loads(args.thresholds.read_text())
summary["thresholds"] = evaluate_thresholds(summary, thresholds)
text = json.dumps(summary, indent=2, sort_keys=True)
if args.output:
args.output.parent.mkdir(parents=True, exist_ok=True)
args.output.write_text(text + "\n")
if args.report:
args.report.parent.mkdir(parents=True, exist_ok=True)
args.report.write_text("\n".join(report_lines(summary)) + "\n")
print(text)
if args.enforce_thresholds and summary.get("thresholds", {}).get("status") == "fail":
raise SystemExit(1)
if __name__ == "__main__":
main()