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
|
{-# LANGUAGE PackageImports #-}
module Propellor.Property.Cmd (
-- * Properties for running commands and scripts
cmdProperty,
cmdProperty',
cmdPropertyEnv,
Script,
scriptProperty,
userScriptProperty,
-- * Lower-level interface for running commands
CommandParam(..),
boolSystem,
boolSystemEnv,
safeSystem,
safeSystemEnv,
shellEscape,
createProcess,
) where
import Control.Applicative
import Data.List
import "mtl" Control.Monad.Reader
import Propellor.Types
import Propellor.Property
import Utility.SafeCommand
import Utility.Env
import Utility.Process (createProcess, CreateProcess)
-- | A property that can be satisfied by running a command.
--
-- The command must exit 0 on success.
cmdProperty :: String -> [String] -> Property NoInfo
cmdProperty cmd params = cmdProperty' cmd params id
cmdProperty' :: String -> [String] -> (CreateProcess -> CreateProcess) -> Property NoInfo
cmdProperty' cmd params mkprocess = property desc $ liftIO $ do
toResult <$> boolSystem' cmd (map Param params) mkprocess
where
desc = unwords $ cmd : params
-- | A property that can be satisfied by running a command,
-- with added environment variables in addition to the standard
-- environment.
cmdPropertyEnv :: String -> [String] -> [(String, String)] -> Property NoInfo
cmdPropertyEnv cmd params env = property desc $ liftIO $ do
env' <- addEntries env <$> getEnvironment
toResult <$> boolSystemEnv cmd (map Param params) (Just env')
where
desc = unwords $ cmd : params
-- | A series of shell commands. (Without a leading hashbang.)
type Script = [String]
-- | A property that can be satisfied by running a script.
scriptProperty :: Script -> Property NoInfo
scriptProperty script = cmdProperty "sh" ["-c", shellcmd]
where
shellcmd = intercalate " ; " ("set -e" : script)
-- | A property that can satisfied by running a script
-- as user (cd'd to their home directory).
userScriptProperty :: User -> Script -> Property NoInfo
userScriptProperty (User user) script = cmdProperty "su" ["--shell", "/bin/sh", "-c", shellcmd, user]
where
shellcmd = intercalate " ; " ("set -e" : "cd" : script)
|
