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Make _hash private to discourage access; fix dag_hash length handling.

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This commit is contained in:
Todd Gamblin 2016-05-09 03:39:08 -07:00
parent 7151fd8836
commit 0c853ac3ea
1 changed files with 14 additions and 11 deletions
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25
lib/spack/spack/spec.py
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@ -73,8 +73,8 @@
spec = id [ options ]
options = { @version-list | +variant | -variant | ~variant |
%compiler | arch=architecture | [ flag ]=value}
flag = { cflags | cxxflags | fflags | cppflags | ldflags |
ldlibs }
flag = { cflags | cxxflags | fcflags | fflags | cppflags |
ldflags | ldlibs }
variant = id
architecture = id
compiler = id [ version-list ]
@ -112,8 +112,8 @@
import spack.parse
import spack.error
import spack.compilers as compilers
import spack.compiler as Compiler
# TODO: move display_specs to some other location.
from spack.cmd.find import display_specs
from spack.version import *
from spack.util.string import *
@ -377,7 +377,9 @@ def __str__(self):
return ''.join(str(self[key]) for key in sorted_keys)
_valid_compiler_flags = ['cflags', 'cxxflags', 'fflags', 'ldflags', 'ldlibs', 'cppflags']
_valid_compiler_flags = [
'cflags', 'cxxflags', 'fcflags', 'fflags', 'ldflags', 'ldlibs', 'cppflags']
class FlagMap(HashableMap):
def __init__(self, spec):
super(FlagMap, self).__init__()
@ -486,7 +488,7 @@ def __init__(self, spec_like, *dep_like, **kwargs):
self.variants = other.variants
self.variants.spec = self
self.namespace = other.namespace
self.hash = other.hash
self._hash = other._hash
# Specs are by default not assumed to be normal, but in some
# cases we've read them from a file want to assume normal.
@ -755,15 +757,15 @@ def dag_hash(self, length=None):
"""
Return a hash of the entire spec DAG, including connectivity.
"""
if self.hash:
return self.hash
if self._hash:
return self._hash[:length]
else:
yaml_text = yaml.dump(
self.to_node_dict(), default_flow_style=True, width=sys.maxint)
sha = hashlib.sha1(yaml_text)
b32_hash = base64.b32encode(sha.digest()).lower()[:length]
if self.concrete:
self.hash = b32_hash
self._hash = b32_hash
return b32_hash
def to_node_dict(self):
@ -811,7 +813,7 @@ def from_node_dict(node):
spec.architecture = node['arch']
if 'hash' in node:
spec.hash = node['hash']
spec._hash = node['hash']
if node['compiler'] is None:
spec.compiler = None
@ -1644,7 +1646,7 @@ def _dup(self, other, **kwargs):
self.variants.spec = self
self.external = other.external
self.namespace = other.namespace
self.hash = other.hash
self._hash = other._hash
# If we copy dependencies, preserve DAG structure in the new spec
if kwargs.get('deps', True):
@ -2047,6 +2049,7 @@ def do_parse(self):
try:
while self.next:
# TODO: clean this parsing up a bit
if self.previous:
specs.append(self.previous.value)
if self.accept(ID):
@ -2138,7 +2141,7 @@ def spec(self, name, check_valid_token = False):
spec.dependents = DependencyMap()
spec.dependencies = DependencyMap()
spec.namespace = spec_namespace
spec.hash = None
spec._hash = None
spec._normal = False
spec._concrete = False