blob: 86ec1aa7509261050228e643c27822f918c03c38 [file] [log] [blame]
#!/usr/bin/env python3.8
# Copyright 2020 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
Compares two or more elf_sizes.json files.
import argparse
import csv
import json
import os
import subprocess
import sys
from tabulate import tabulate
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--field", choices=FIELDS, default="code")
parser.add_argument("file", nargs="+", metavar="elf_sizes.json")
args = parser.parse_args()
files = {}
totals = []
def load(f):
data = json.load(f)
assert set(data["totals"].keys()) == set(FIELDS)
for file in data["files"]:
build_id = file["build_id"]
if build_id:
files.setdefault(file["path"], []).append(file)
for file in args.file:
with open(file) as f:
table = []
header = ["path", "baseline"]
for i, _ in enumerate(args.file[1:]):
header.extend(["%s %d" % (args.field, i + 1), "ratio %d" % (i + 1)])
def compute_row(name, data, field):
if not field in data[0]:
return [0] * len(data)
baseline = data[0][field]
row = [name, baseline]
for f in data[1:]:
row.extend([f[field], float(f[field]) / baseline if baseline else 0.0])
return row
for path in sorted(files.keys()):
file = files[path]
if len(file) < 2:
print("%s not present in every elf_sizes.json" % path, file=sys.stderr)
if len(set([f["build_id"] for f in file])) == 1:
print("%s is unchanged" % path, file=sys.stderr)
table.append(compute_row(path, file, args.field))
table.append(compute_row("TOTAL", totals, args.field))
print(tabulate(table, headers=header, floatfmt=".3f"))
return 0
if __name__ == "__main__":