root / kamaki / cli / config.py @ f0415090
History | View | Annotate | Download (4.9 kB)
1 |
# Copyright 2011-2012 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
import os |
35 |
|
36 |
from collections import defaultdict |
37 |
from ConfigParser import RawConfigParser, NoOptionError, NoSectionError |
38 |
|
39 |
try:
|
40 |
from collections import OrderedDict |
41 |
except ImportError: |
42 |
from kamaki.clients.utils.ordereddict import OrderedDict |
43 |
|
44 |
|
45 |
# Path to the file that stores the configuration
|
46 |
CONFIG_PATH = os.path.expanduser('~/.kamakirc')
|
47 |
HISTORY_PATH = os.path.expanduser('~/.kamaki.history')
|
48 |
|
49 |
# Name of a shell variable to bypass the CONFIG_PATH value
|
50 |
CONFIG_ENV = 'KAMAKI_CONFIG'
|
51 |
|
52 |
HEADER = """
|
53 |
# Kamaki configuration file v2
|
54 |
"""
|
55 |
|
56 |
DEFAULTS = { |
57 |
'global': {
|
58 |
'colors': 'off', |
59 |
'account': '', |
60 |
'token': '', |
61 |
'log_file': os.path.expanduser('~/.kamaki.log'), |
62 |
'log_token': 'off', |
63 |
'log_data': 'off', |
64 |
'max_threads': 7 |
65 |
}, |
66 |
'config': {'cli': 'config'}, |
67 |
'history': {
|
68 |
'cli': 'history', |
69 |
'file': HISTORY_PATH
|
70 |
}, |
71 |
'file': {
|
72 |
'cli': 'pithos', |
73 |
'url': 'https://pithos.okeanos.grnet.gr/v1' |
74 |
}, |
75 |
'compute': {'url': 'https://cyclades.okeanos.grnet.gr/api/v1.1'}, |
76 |
'server': {'cli': 'cyclades'}, |
77 |
'flavor': {'cli': 'cyclades'}, |
78 |
'network': {'cli': 'cyclades'}, |
79 |
'image': {
|
80 |
'cli': 'image', |
81 |
'url': 'https://cyclades.okeanos.grnet.gr/plankton' |
82 |
}, |
83 |
'user': {
|
84 |
'cli': 'astakos', |
85 |
'url': 'https://accounts.okeanos.grnet.gr' |
86 |
} |
87 |
} |
88 |
|
89 |
|
90 |
class Config(RawConfigParser): |
91 |
def __init__(self, path=None): |
92 |
RawConfigParser.__init__(self, dict_type=OrderedDict)
|
93 |
self.path = path or os.environ.get(CONFIG_ENV, CONFIG_PATH) |
94 |
self._overrides = defaultdict(dict) |
95 |
self._load_defaults()
|
96 |
self.read(self.path) |
97 |
|
98 |
def _load_defaults(self): |
99 |
for section, options in DEFAULTS.items(): |
100 |
for option, val in options.items(): |
101 |
self.set(section, option, val)
|
102 |
|
103 |
def reload(self): |
104 |
self = self.__init__(self.path) |
105 |
|
106 |
def apis(self): |
107 |
return [api for api in self.sections() if api != 'global'] |
108 |
|
109 |
def get(self, section, option): |
110 |
value = self._overrides.get(section, {}).get(option)
|
111 |
if value is not None: |
112 |
return value
|
113 |
|
114 |
try:
|
115 |
return RawConfigParser.get(self, section, option) |
116 |
except (NoSectionError, NoOptionError):
|
117 |
return DEFAULTS.get(section, {}).get(option)
|
118 |
|
119 |
def set(self, section, option, value): |
120 |
if section not in RawConfigParser.sections(self): |
121 |
self.add_section(section)
|
122 |
RawConfigParser.set(self, section, option, value)
|
123 |
|
124 |
def remove_option(self, section, option, also_remove_default=False): |
125 |
try:
|
126 |
if also_remove_default:
|
127 |
DEFAULTS[section].pop(option) |
128 |
RawConfigParser.remove_option(self, section, option)
|
129 |
except NoSectionError:
|
130 |
pass
|
131 |
|
132 |
def items(self, section, include_defaults=True): |
133 |
try:
|
134 |
d = dict(DEFAULTS[section]) if include_defaults else {} |
135 |
except KeyError: |
136 |
d = {} |
137 |
try:
|
138 |
d.update(RawConfigParser.items(self, section))
|
139 |
except NoSectionError:
|
140 |
pass
|
141 |
return d.items()
|
142 |
|
143 |
def override(self, section, option, value): |
144 |
self._overrides[section][option] = value
|
145 |
|
146 |
def write(self): |
147 |
with open(self.path, 'w') as f: |
148 |
os.chmod(self.path, 0600) |
149 |
f.write(HEADER.lstrip()) |
150 |
f.flush() |
151 |
RawConfigParser.write(self, f)
|