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#!/usr/bin/env python3
import json
import re
import logging
import argparse
def parse_arguments():
parser = argparse.ArgumentParser(description="startup timings parser")
parser.add_argument("log", help="snap startup log")
parser.add_argument(
"-v", "--verbose", help="verbose", action="store_true", default=False
)
return parser.parse_args()
def main(opts):
if opts.verbose:
logging.basicConfig(level=logging.DEBUG)
with open(opts.log, encoding="utf-8") as inf:
lines = inf.readlines()
steps = []
for line in lines:
match = re.match(r".*-- snap startup ({.*?})", line)
if match:
logging.debug("got match: %s", match.group(1))
cleaned_data = match.group(1).replace('\\"', '"')
rawdata = json.loads(cleaned_data)
steps.append(rawdata)
if not steps:
print("no logs found")
total = 0.0
for idx, current in enumerate(steps):
if idx == 0:
last = current
continue
diff = float(current["time"]) - float(last["time"])
total += diff
print("{2:3f}s\t{0} -> {1}".format(last["stage"], current["stage"], diff))
last = current
print("approx. total: {0:3f}s".format(total))
if __name__ == "__main__":
main(parse_arguments())
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