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stacktrace_diff.py
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61 lines (50 loc) · 1.92 KB
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#!/usr/bin/env python3
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import os.path
import re
import sys
""" Reads a file from two files, and check if they are equal ignoring
full path and column number.
"""
if len(sys.argv) != 3:
print("Usage: stacktrace_diff.py <trace1> <trace2>")
sys.exit(-1)
base_trace = sys.argv[1]
compare_trace = sys.argv[2]
base_lines = open(base_trace).readlines()
compare_lines = open(compare_trace).readlines()
if len(base_lines) != len(compare_lines):
sys.stderr.write("Number of lines mismatch\n")
sys.exit(1)
for idx, base_line in enumerate(base_lines):
compare_line = compare_lines[idx]
if idx == 0:
if base_line != compare_line:
sys.stderr.write("Exception message mismatch\n")
sys.exit(1)
else:
pattern = r"\s*at (\w+) \(([^\\]*\.js):(\d+):\d+\)\s*"
base_match = re.match(pattern, base_line)
if not base_match:
sys.stderr.write(
"base line {0} does not match expected format\n".format(base_line)
)
sys.exit(1)
compare_match = re.match(pattern, compare_line)
if not compare_match:
sys.stderr.write("compare line does not match expected format\n")
sys.exit(1)
if base_match.group(1) != compare_match.group(1):
sys.stderr.write("function name does not match\n")
sys.exit(1)
base_file_name = os.path.basename(base_match.group(2))
compare_file_name = os.path.basename(compare_match.group(2))
if base_file_name != compare_file_name:
sys.stderr.write("File name does not match\n")
sys.exit(1)
if base_match.group(3) != compare_match.group(3):
sys.stderr.write("line number does not match\n")
sys.exit(1)