/usr/share/boost-build/util/utility.py is in libboost1.54-tools-dev 1.54.0-4ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | # (C) Copyright David Abrahams 2001. Permission to copy, use, modify, sell and
# distribute this software is granted provided this copyright notice appears in
# all copies. This software is provided "as is" without express or implied
# warranty, and with no claim as to its suitability for any purpose.
""" Utility functions to add/remove/get grists.
Grists are string enclosed in angle brackets (<>) that are used as prefixes. See Jam for more information.
"""
import re
import os
import bjam
from b2.exceptions import *
__re_grist_and_value = re.compile (r'(<[^>]*>)(.*)')
__re_grist_content = re.compile ('^<(.*)>$')
__re_backslash = re.compile (r'\\')
def to_seq (value):
""" If value is a sequence, returns it.
If it is a string, returns a sequence with value as its sole element.
"""
if not value:
return []
if isinstance (value, str):
return [value]
else:
return value
def replace_references_by_objects (manager, refs):
objs = []
for r in refs:
objs.append (manager.get_object (r))
return objs
def add_grist (features):
""" Transform a string by bracketing it with "<>". If already bracketed, does nothing.
features: one string or a sequence of strings
return: the gristed string, if features is a string, or a sequence of gristed strings, if features is a sequence
"""
def grist_one (feature):
if feature [0] != '<' and feature [len (feature) - 1] != '>':
return '<' + feature + '>'
else:
return feature
if isinstance (features, str):
return grist_one (features)
else:
return [ grist_one (feature) for feature in features ]
def replace_grist (features, new_grist):
""" Replaces the grist of a string by a new one.
Returns the string with the new grist.
"""
def replace_grist_one (name, new_grist):
split = __re_grist_and_value.match (name)
if not split:
return new_grist + name
else:
return new_grist + split.group (2)
if isinstance (features, str):
return replace_grist_one (features, new_grist)
else:
return [ replace_grist_one (feature, new_grist) for feature in features ]
def get_value (property):
""" Gets the value of a property, that is, the part following the grist, if any.
"""
return replace_grist (property, '')
def get_grist (value):
""" Returns the grist of a string.
If value is a sequence, does it for every value and returns the result as a sequence.
"""
def get_grist_one (name):
split = __re_grist_and_value.match (name)
if not split:
return ''
else:
return split.group (1)
if isinstance (value, str):
return get_grist_one (value)
else:
return [ get_grist_one (v) for v in value ]
def ungrist (value):
""" Returns the value without grist.
If value is a sequence, does it for every value and returns the result as a sequence.
"""
def ungrist_one (value):
stripped = __re_grist_content.match (value)
if not stripped:
raise BaseException ("in ungrist: '%s' is not of the form <.*>" % value)
return stripped.group (1)
if isinstance (value, str):
return ungrist_one (value)
else:
return [ ungrist_one (v) for v in value ]
def replace_suffix (name, new_suffix):
""" Replaces the suffix of name by new_suffix.
If no suffix exists, the new one is added.
"""
split = os.path.splitext (name)
return split [0] + new_suffix
def forward_slashes (s):
""" Converts all backslashes to forward slashes.
"""
return __re_backslash.sub ('/', s)
def split_action_id (id):
""" Splits an id in the toolset and specific rule parts. E.g.
'gcc.compile.c++' returns ('gcc', 'compile.c++')
"""
split = id.split ('.', 1)
toolset = split [0]
name = ''
if len (split) > 1:
name = split [1]
return (toolset, name)
def os_name ():
result = bjam.variable("OS")
assert(len(result) == 1)
return result[0]
def platform ():
return bjam.variable("OSPLAT")
def os_version ():
return bjam.variable("OSVER")
def on_windows ():
""" Returns true if running on windows, whether in cygwin or not.
"""
if bjam.variable("NT"):
return True
elif bjam.variable("UNIX"):
uname = bjam.variable("JAMUNAME")
if uname and uname[0].startswith("CYGWIN"):
return True
return False
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