run-valgrind.py

#!/usr/bin/env python
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from os import path
import subprocess
import sys

NODE_ROOT = path.dirname(path.dirname(path.abspath(__file__)))

VALGRIND_ARGUMENTS = [
  'valgrind',
  '--error-exitcode=1',
  '--smc-check=all',
  # Node.js does not clean up on exit so don't complain about
  # memory leaks but do complain about invalid memory access.
  '--quiet',
]

if len(sys.argv) < 2:
  print 'Please provide an executable to analyze.'
  sys.exit(1)

executable = path.join(NODE_ROOT, sys.argv[1])
if not path.exists(executable):
  print 'Cannot find the file specified: %s' % executable
  sys.exit(1)

# Compute the command line.
command = VALGRIND_ARGUMENTS + [executable] + sys.argv[2:]

# Run valgrind.
process = subprocess.Popen(command, stderr=subprocess.PIPE)
code = process.wait()
errors = process.stderr.readlines()

# If valgrind produced an error, we report that to the user.
if code != 0:
  sys.stderr.writelines(errors)
  sys.exit(code)