diff options
Diffstat (limited to 'lib/spack/spack/spec.py')
| -rw-r--r-- | lib/spack/spack/spec.py | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py index fc4bf41e34..6950025502 100644 --- a/lib/spack/spack/spec.py +++ b/lib/spack/spack/spec.py @@ -98,7 +98,7 @@ expansion when it is the first character in an id typed on the command line. import base64 import hashlib import imp -import sys +import ctypes from StringIO import StringIO from operator import attrgetter @@ -203,6 +203,9 @@ special_types = { legal_deps = tuple(special_types) + alldeps +"""Max integer helps avoid passing too large a value to cyaml.""" +maxint = 2 ** (ctypes.sizeof(ctypes.c_int) * 8 - 1) - 1 + def validate_deptype(deptype): if isinstance(deptype, str): @@ -969,12 +972,12 @@ class Spec(object): return self._hash[:length] else: yaml_text = syaml.dump( - self.to_node_dict(), default_flow_style=True, width=sys.maxint) + self.to_node_dict(), default_flow_style=True, width=maxint) sha = hashlib.sha1(yaml_text) - b32_hash = base64.b32encode(sha.digest()).lower()[:length] + b32_hash = base64.b32encode(sha.digest()).lower() if self.concrete: self._hash = b32_hash - return b32_hash + return b32_hash[:length] def dag_hash_bit_prefix(self, bits): """Get the first <bits> bits of the DAG hash as an integer type.""" |