import os
import glob
+import stat
class SubstitutionError(Exception):
- def __init__(self, message):
- super(SubstitutionError, self).__init__(message)
+ pass
def search(c):
DEFAULT = 0
return None
def sub_file(v):
- return os.path.join(os.environ['TASK_KEEPMOUNT'], v)
+ path = os.path.join(os.environ['TASK_KEEPMOUNT'], v)
+ st = os.stat(path)
+ if st and stat.S_ISREG(st.st_mode):
+ return path
+ else:
+ raise SubstitutionError("$(file {}) is not accessible or is not a regular file".format(path))
def sub_dir(v):
d = os.path.dirname(v)
if d == '':
d = v
- return os.path.join(os.environ['TASK_KEEPMOUNT'], d)
+ path = os.path.join(os.environ['TASK_KEEPMOUNT'], d)
+ st = os.stat(path)
+ if st and stat.S_ISDIR(st.st_mode):
+ return path
+ else:
+ raise SubstitutionError("$(dir {}) is not accessible or is not a directory".format(path))
def sub_basename(v):
return os.path.splitext(os.path.basename(v))[0]
def sub_glob(v):
l = glob.glob(v)
if len(l) == 0:
- raise SubstitutionError("$(glob): No match on '%s'" % v)
+ raise SubstitutionError("$(glob {}) no match fonud".format(v))
else:
return l[0]
raise SubstitutionError("Unknown variable or function '%s' while performing substitution on '%s'" % (v, c))
if r is None:
raise SubstitutionError("Substitution for '%s' is null while performing substitution on '%s'" % (v, c))
- if not (isinstance(r, str) or isinstance(r, unicode)):
+ if not isinstance(r, basestring):
raise SubstitutionError("Substitution for '%s' must be a string while performing substitution on '%s'" % (v, c))
c = c[:m[0]] + r + c[m[1]+1:]