1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import io
import itertools
import re
import string
import spack.error
__all__ = [
"mod_to_class",
"spack_module_to_python_module",
"valid_module_name",
"valid_fully_qualified_module_name",
"validate_fully_qualified_module_name",
"validate_module_name",
"possible_spack_module_names",
"simplify_name",
"NamespaceTrie",
]
# Valid module names can contain '-' but can't start with it.
_valid_module_re = r"^\w[\w-]*$"
# Valid module names can contain '-' but can't start with it.
_valid_fully_qualified_module_re = r"^(\w[\w-]*)(\.\w[\w-]*)*$"
def mod_to_class(mod_name):
"""Convert a name from module style to class name style. Spack mostly
follows `PEP-8 <http://legacy.python.org/dev/peps/pep-0008/>`_:
* Module and package names use lowercase_with_underscores.
* Class names use the CapWords convention.
Regular source code follows these convetions. Spack is a bit
more liberal with its Package names and Compiler names:
* They can contain '-' as well as '_', but cannot start with '-'.
* They can start with numbers, e.g. "3proxy".
This function converts from the module convention to the class
convention by removing _ and - and converting surrounding
lowercase text to CapWords. If mod_name starts with a number,
the class name returned will be prepended with '_' to make a
valid Python identifier.
"""
validate_module_name(mod_name)
class_name = re.sub(r"[-_]+", "-", mod_name)
class_name = string.capwords(class_name, "-")
class_name = class_name.replace("-", "")
# If a class starts with a number, prefix it with Number_ to make it
# a valid Python class name.
if re.match(r"^[0-9]", class_name):
class_name = "_%s" % class_name
return class_name
def spack_module_to_python_module(mod_name):
"""Given a Spack module name, returns the name by which it can be
imported in Python.
"""
if re.match(r"[0-9]", mod_name):
mod_name = "num" + mod_name
return mod_name.replace("-", "_")
def possible_spack_module_names(python_mod_name):
"""Given a Python module name, return a list of all possible spack module
names that could correspond to it."""
mod_name = re.sub(r"^num(\d)", r"\1", python_mod_name)
parts = re.split(r"(_)", mod_name)
options = [["_", "-"]] * mod_name.count("_")
results = []
for subs in itertools.product(*options):
s = list(parts)
s[1::2] = subs
results.append("".join(s))
return results
def simplify_name(name):
"""Simplify package name to only lowercase, digits, and dashes.
Simplifies a name which may include uppercase letters, periods,
underscores, and pluses. In general, we want our package names to
only contain lowercase letters, digits, and dashes.
Args:
name (str): The original name of the package
Returns:
str: The new name of the package
"""
# Convert CamelCase to Dashed-Names
# e.g. ImageMagick -> Image-Magick
# e.g. SuiteSparse -> Suite-Sparse
# name = re.sub('([a-z])([A-Z])', r'\1-\2', name)
# Rename Intel downloads
# e.g. l_daal, l_ipp, l_mkl -> daal, ipp, mkl
if name.startswith("l_"):
name = name[2:]
# Convert UPPERCASE to lowercase
# e.g. SAMRAI -> samrai
name = name.lower()
# Replace '_' and '.' with '-'
# e.g. backports.ssl_match_hostname -> backports-ssl-match-hostname
name = name.replace("_", "-")
name = name.replace(".", "-")
# Replace "++" with "pp" and "+" with "-plus"
# e.g. gtk+ -> gtk-plus
# e.g. voro++ -> voropp
name = name.replace("++", "pp")
name = name.replace("+", "-plus")
# Simplify Lua package names
# We don't want "lua" to occur multiple times in the name
name = re.sub("^(lua)([^-])", r"\1-\2", name)
# Simplify Bio++ package names
name = re.sub("^(bpp)([^-])", r"\1-\2", name)
return name
def valid_module_name(mod_name):
"""Return whether mod_name is valid for use in Spack."""
return bool(re.match(_valid_module_re, mod_name))
def valid_fully_qualified_module_name(mod_name):
"""Return whether mod_name is a valid namespaced module name."""
return bool(re.match(_valid_fully_qualified_module_re, mod_name))
def validate_module_name(mod_name):
"""Raise an exception if mod_name is not valid."""
if not valid_module_name(mod_name):
raise InvalidModuleNameError(mod_name)
def validate_fully_qualified_module_name(mod_name):
"""Raise an exception if mod_name is not a valid namespaced module name."""
if not valid_fully_qualified_module_name(mod_name):
raise InvalidFullyQualifiedModuleNameError(mod_name)
class InvalidModuleNameError(spack.error.SpackError):
"""Raised when we encounter a bad module name."""
def __init__(self, name):
super().__init__("Invalid module name: " + name)
self.name = name
class InvalidFullyQualifiedModuleNameError(spack.error.SpackError):
"""Raised when we encounter a bad full package name."""
def __init__(self, name):
super().__init__("Invalid fully qualified package name: " + name)
self.name = name
class NamespaceTrie:
class Element:
def __init__(self, value):
self.value = value
def __init__(self, separator="."):
self._subspaces = {}
self._value = None
self._sep = separator
def __setitem__(self, namespace, value):
first, sep, rest = namespace.partition(self._sep)
if not first:
self._value = NamespaceTrie.Element(value)
return
if first not in self._subspaces:
self._subspaces[first] = NamespaceTrie()
self._subspaces[first][rest] = value
def _get_helper(self, namespace, full_name):
first, sep, rest = namespace.partition(self._sep)
if not first:
if not self._value:
raise KeyError("Can't find namespace '%s' in trie" % full_name)
return self._value.value
elif first not in self._subspaces:
raise KeyError("Can't find namespace '%s' in trie" % full_name)
else:
return self._subspaces[first]._get_helper(rest, full_name)
def __getitem__(self, namespace):
return self._get_helper(namespace, namespace)
def is_prefix(self, namespace):
"""True if the namespace has a value, or if it's the prefix of one that
does."""
first, sep, rest = namespace.partition(self._sep)
if not first:
return True
elif first not in self._subspaces:
return False
else:
return self._subspaces[first].is_prefix(rest)
def is_leaf(self, namespace):
"""True if this namespace has no children in the trie."""
first, sep, rest = namespace.partition(self._sep)
if not first:
return bool(self._subspaces)
elif first not in self._subspaces:
return False
else:
return self._subspaces[first].is_leaf(rest)
def has_value(self, namespace):
"""True if there is a value set for the given namespace."""
first, sep, rest = namespace.partition(self._sep)
if not first:
return self._value is not None
elif first not in self._subspaces:
return False
else:
return self._subspaces[first].has_value(rest)
def __contains__(self, namespace):
"""Returns whether a value has been set for the namespace."""
return self.has_value(namespace)
def _str_helper(self, stream, level=0):
indent = level * " "
for name in sorted(self._subspaces):
stream.write(indent + name + "\n")
if self._value:
stream.write(indent + " " + repr(self._value.value))
stream.write(self._subspaces[name]._str_helper(stream, level + 1))
def __str__(self):
stream = io.StringIO()
self._str_helper(stream)
return stream.getvalue()
|
