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#
# Copyright 2006, 2013 Red Hat, Inc.
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
#
import os
class DevError(RuntimeError):
def __init__(self, msg):
RuntimeError.__init__(self, "programming error: %s" % msg)
def listify(l):
if l is None:
return []
elif not isinstance(l, list):
return [l]
else:
return l
def xml_escape(xml):
"""
Replaces chars ' " < > & with xml safe counterparts
"""
if xml:
xml = xml.replace("&", "&")
xml = xml.replace("'", "'")
xml = xml.replace("\"", """)
xml = xml.replace("<", "<")
xml = xml.replace(">", ">")
return xml
def get_prop_path(obj, prop_path):
"""Return value of attribute identified by `prop_path`
Look up the attribute of `obj` identified by `prop_path`
(separated by "."). If any component along the path is missing an
`AttributeError` is raised.
"""
parent = obj
pieces = prop_path.split(".")
for piece in pieces[:-1]:
parent = getattr(parent, piece)
return getattr(parent, pieces[-1])
def set_prop_path(obj, prop_path, value):
"""Set value of attribute identified by `prop_path`
Set the attribute of `obj` identified by `prop_path` (separated by
".") to `value`. If any component along the path is missing an
`AttributeError` is raised.
"""
parent = obj
pieces = prop_path.split(".")
for piece in pieces[:-1]:
parent = getattr(parent, piece)
return setattr(parent, pieces[-1], value)
def in_testsuite():
return "VIRTINST_TEST_SUITE" in os.environ
def diff(origstr, newstr, fromfile="Original", tofile="New"):
import difflib
dlist = difflib.unified_diff(
origstr.splitlines(1), newstr.splitlines(1),
fromfile=fromfile, tofile=tofile)
return "".join(dlist)
def unindent_device_xml(xml):
import re
lines = xml.splitlines()
if not lines:
return xml # pragma: no cover
ret = ""
unindent = 0
for c in lines[0]:
if c != " ":
break
unindent += 1
for line in lines:
if re.match(r"^%s *<.*$" % (unindent * " "), line):
line = line[unindent:]
ret += line + "\n"
return ret
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