summaryrefslogtreecommitdiff
path: root/src/Propellor/Types/OS.hs
blob: 0abc76aced54f08747efaf1c993d04e2ead9d804 (plain)
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
{-# LANGUAGE DeriveDataTypeable #-}

module Propellor.Types.OS (
	System(..),
	Distribution(..),
	DebianSuite(..),
	isStable,
	Release,
	Architecture,
	HostName,
	UserName,
	User(..),
	Group(..),
	userGroup,
	Port(..),
	fromPort,
) where

import Network.BSD (HostName)
import Data.Typeable

-- | High level description of a operating system.
data System = System Distribution Architecture
	deriving (Show, Eq, Typeable)

data Distribution
	= Debian DebianSuite
	| Buntish Release -- ^ A well-known Debian derivative founded by a space tourist. The actual name of this distribution is not used in Propellor per <http://joeyh.name/blog/entry/trademark_nonsense/>)
	deriving (Show, Eq)

-- | Debian has several rolling suites, and a number of stable releases,
-- such as Stable "jessie".
data DebianSuite = Experimental | Unstable | Testing | Stable Release
	deriving (Show, Eq)

isStable :: DebianSuite -> Bool
isStable (Stable _) = True
isStable _ = False

type Release = String
type Architecture = String

type UserName = String

newtype User = User UserName
	deriving (Eq, Ord, Show)

newtype Group = Group String
	deriving (Eq, Ord, Show)

-- | Makes a Group with the same name as the User.
userGroup :: User -> Group
userGroup (User u) = Group u

newtype Port = Port Int
	deriving (Eq, Show)

fromPort :: Port -> String
fromPort (Port p) = show p