Wraps various os methods to be more forgiving.

oswrap.py

'''
Wraps various os methods to be more forgiving.

:since: Dec 22, 2015

:author: Dustin Dorroh <dustin.dorroh@decisionsciencescorp.com>
'''

import os
import stat
import errno
from functools import wraps

def OSErrorCatch(f,err=errno.EEXIST):
    '''
    Wraps a function and handles a select OSError exception silently.
    :params:
        f: 
            function to wrap
        err: 
            error to handle silently. Default errno.EEXIST
    :return:
        wrapped function
    '''
    @wraps(f)
    def wrapper(*args, **kwds):
        try:
            return f(*args, **kwds)
        except OSError as oserr:
            if oserr.errno != err:
                raise oserr
    return wrapper

makedirs = OSErrorCatch(os.makedirs)
symlink = OSErrorCatch(os.symlink)


def make_executable(path):
    '''
    Make a path executable using os.chmod
    :param:
        path:
            path to make executable
    '''
    os.chmod(path,  os.stat(path).st_mode | stat.S_IEXEC)