root / src / Ganeti / DataCollectors / CLI.hs @ d78970ba
History | View | Annotate | Download (2.9 kB)
1 |
{-| Implementation of DataCollectors CLI functions. |
---|---|
2 |
|
3 |
This module holds the common command-line related functions for the |
4 |
collector binaries. |
5 |
|
6 |
-} |
7 |
|
8 |
{- |
9 |
|
10 |
Copyright (C) 2009, 2010, 2011, 2012 Google Inc. |
11 |
|
12 |
This program is free software; you can redistribute it and/or modify |
13 |
it under the terms of the GNU General Public License as published by |
14 |
the Free Software Foundation; either version 2 of the License, or |
15 |
(at your option) any later version. |
16 |
|
17 |
This program is distributed in the hope that it will be useful, but |
18 |
WITHOUT ANY WARRANTY; without even the implied warranty of |
19 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
20 |
General Public License for more details. |
21 |
|
22 |
You should have received a copy of the GNU General Public License |
23 |
along with this program; if not, write to the Free Software |
24 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
25 |
02110-1301, USA. |
26 |
|
27 |
-} |
28 |
|
29 |
module Ganeti.DataCollectors.CLI |
30 |
( Options(..) |
31 |
, OptType |
32 |
, defaultOptions |
33 |
-- * The options |
34 |
, oShowHelp |
35 |
, oShowVer |
36 |
, oShowComp |
37 |
, oDrbdPairing |
38 |
, oDrbdStatus |
39 |
, genericOptions |
40 |
) where |
41 |
|
42 |
import System.Console.GetOpt |
43 |
|
44 |
import Ganeti.BasicTypes |
45 |
import Ganeti.Common as Common |
46 |
|
47 |
-- * Data types |
48 |
|
49 |
-- | Command line options structure. |
50 |
data Options = Options |
51 |
{ optShowHelp :: Bool -- ^ Just show the help |
52 |
, optShowComp :: Bool -- ^ Just show the completion info |
53 |
, optShowVer :: Bool -- ^ Just show the program version |
54 |
, optDrbdStatus :: Maybe FilePath -- ^ Path to the file containing DRBD |
55 |
-- status information |
56 |
, optDrbdPairing :: Maybe FilePath -- ^ Path to the file containing pairings |
57 |
-- between instances and DRBD minors |
58 |
} deriving Show |
59 |
|
60 |
-- | Default values for the command line options. |
61 |
defaultOptions :: Options |
62 |
defaultOptions = Options |
63 |
{ optShowHelp = False |
64 |
, optShowComp = False |
65 |
, optShowVer = False |
66 |
, optDrbdStatus = Nothing |
67 |
, optDrbdPairing = Nothing |
68 |
} |
69 |
|
70 |
-- | Abbreviation for the option type. |
71 |
type OptType = GenericOptType Options |
72 |
|
73 |
instance StandardOptions Options where |
74 |
helpRequested = optShowHelp |
75 |
verRequested = optShowVer |
76 |
compRequested = optShowComp |
77 |
requestHelp o = o { optShowHelp = True } |
78 |
requestVer o = o { optShowVer = True } |
79 |
requestComp o = o { optShowComp = True } |
80 |
|
81 |
-- * Command line options |
82 |
oDrbdPairing :: OptType |
83 |
oDrbdPairing = |
84 |
( Option "p" ["drbd-pairing"] |
85 |
(ReqArg (\ f o -> Ok o { optDrbdPairing = Just f}) "FILE") |
86 |
"the FILE containing pairings between instances and DRBD minors", |
87 |
OptComplFile) |
88 |
|
89 |
oDrbdStatus :: OptType |
90 |
oDrbdStatus = |
91 |
( Option "s" ["drbd-status"] |
92 |
(ReqArg (\ f o -> Ok o { optDrbdStatus = Just f }) "FILE") |
93 |
"the DRBD status FILE", |
94 |
OptComplFile) |
95 |
|
96 |
-- | Generic options. |
97 |
genericOptions :: [GenericOptType Options] |
98 |
genericOptions = [ oShowVer |
99 |
, oShowHelp |
100 |
, oShowComp |
101 |
] |