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- import os
- import re
- import subprocess
- from .compat import decode, encode
- from .log import debug, log
- __all__ = ['ldd', 'system']
- try:
- basestring
- except NameError:
- basestring = (str, bytes)
- def system(args, exclude=None, stdin=None):
- '''System call with capturing output
- '''
- cmd = ' '.join(args)
- debug('SYSTEM', cmd)
- if exclude is None:
- exclude = []
- elif isinstance(exclude, basestring):
- exclude = [exclude]
- else:
- exclude = list(exclude)
- exclude.append('fuse: warning:')
- if stdin:
- in_arg = subprocess.PIPE
- stdin = encode(stdin)
- else:
- in_arg = None
- p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
- stderr=subprocess.PIPE, stdin=in_arg)
- out, err = p.communicate(input=stdin)
- if err:
- err = decode(err)
- stripped = [line for line in err.split(os.linesep) if line]
- def matches_pattern(line, pattern):
- if isinstance(pattern, re.Pattern):
- return bool(pattern.match(line))
- return line.startswith(pattern)
- for pattern in exclude:
- stripped = [line for line in stripped
- if not matches_pattern(line, pattern)]
- if stripped:
- # Tolerate single line warning(s)
- for line in stripped:
- if (len(line) < 8) or (line[:8].lower() != "warning:"):
- raise RuntimeError(err)
- else:
- for line in stripped:
- log('WARNING', line[8:].strip())
- return str(decode(out).strip())
- _ldd_pattern = re.compile('=> (.+) [(]0x')
- def ldd(path):
- '''Get dependencies list of dynamic libraries
- '''
- out = system(('ldd', path))
- return _ldd_pattern.findall(out)
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