blob: dea0d4b45a182abe4d3e14b7c2d939591a51b598 (
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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
{- This Source Code Form is subject to the terms of the Mozilla Public License,
v. 2.0. If a copy of the MPL was not distributed with this file, You can
obtain one at https://mozilla.org/MPL/2.0/. -}
-- | Transformers and exceptions.
module SlackBuilder.Trans
( SlackBuilderException(..)
, SlackBuilderT(..)
, relativeToRepository
) where
import Control.Monad.Trans.Reader (ReaderT(..), asks)
import Data.Text (Text)
import qualified Data.Text as Text
import SlackBuilder.Config
import Control.Monad.IO.Class (MonadIO(..))
import Control.Monad.Catch (MonadCatch(..), MonadThrow(..))
import Control.Exception (Exception(..))
import System.FilePath ((</>))
import Text.URI (URI)
import qualified Text.URI as URI
import qualified Codec.Compression.Lzma as Lzma
data SlackBuilderException
= UpdaterNotFound Text
| UnsupportedUrlType URI
| LzmaDecompressionFailed Lzma.LzmaRet
deriving Show
instance Exception SlackBuilderException
where
displayException (UpdaterNotFound updateName) = Text.unpack
$ Text.concat ["Requested package \"", updateName, "\" was not found"]
displayException (UnsupportedUrlType givenURI) = Text.unpack
$ "Only https URLs are supported, got: " <> URI.render givenURI
displayException (LzmaDecompressionFailed Lzma.LzmaRetOK) =
"Operation completed successfully"
displayException (LzmaDecompressionFailed Lzma.LzmaRetStreamEnd) =
"End of stream was reached"
displayException (LzmaDecompressionFailed Lzma.LzmaRetUnsupportedCheck) =
"Cannot calculate the integrity check"
displayException (LzmaDecompressionFailed Lzma.LzmaRetGetCheck) =
"Integrity check type is now available"
displayException (LzmaDecompressionFailed Lzma.LzmaRetMemError) =
"Cannot allocate memory"
displayException (LzmaDecompressionFailed Lzma.LzmaRetMemlimitError) =
"Memory usage limit was reached"
displayException (LzmaDecompressionFailed Lzma.LzmaRetFormatError) =
"File format not recognized"
displayException (LzmaDecompressionFailed Lzma.LzmaRetOptionsError) =
"Invalid or unsupported options"
displayException (LzmaDecompressionFailed Lzma.LzmaRetDataError) =
"Data is corrupt"
displayException (LzmaDecompressionFailed Lzma.LzmaRetBufError) =
"No progress is possible"
displayException (LzmaDecompressionFailed Lzma.LzmaRetProgError) =
"Programming error"
newtype SlackBuilderT a = SlackBuilderT
{ runSlackBuilderT :: ReaderT Settings IO a
}
relativeToRepository :: FilePath -> SlackBuilderT FilePath
relativeToRepository filePath =
(</> filePath) <$> SlackBuilderT (asks repository)
instance Functor SlackBuilderT
where
fmap f (SlackBuilderT slackBuilderT) = SlackBuilderT $ f <$> slackBuilderT
instance Applicative SlackBuilderT
where
pure = SlackBuilderT . pure
(SlackBuilderT f) <*> (SlackBuilderT x) = SlackBuilderT $ f <*> x
instance Monad SlackBuilderT
where
return = pure
(SlackBuilderT x) >>= f = SlackBuilderT $ x >>= runSlackBuilderT . f
instance MonadIO SlackBuilderT
where
liftIO = SlackBuilderT . liftIO
instance MonadThrow SlackBuilderT
where
throwM = SlackBuilderT . throwM
instance MonadCatch SlackBuilderT
where
catch (SlackBuilderT action) handler =
SlackBuilderT $ catch action $ runSlackBuilderT . handler
|
