{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric #-}
module Distribution.CabalSpecVersion where

import Prelude ()
import Distribution.Compat.Prelude

-- | Different Cabal-the-spec versions.
--
-- We branch based on this at least in the parser.
--
data CabalSpecVersion
    = CabalSpecV1_0 -- ^ this is older than 'CabalSpecV1_2'
    | CabalSpecV1_2 -- ^ new syntax (sections)
    | CabalSpecV1_4
    | CabalSpecV1_6
    | CabalSpecV1_8
    | CabalSpecV1_10
    | CabalSpecV1_12
    -- 1.16 -- 1.14: no changes
    | CabalSpecV1_18
    | CabalSpecV1_20
    | CabalSpecV1_22
    | CabalSpecV1_24
    | CabalSpecV2_0
    | CabalSpecV2_2
    | CabalSpecV2_4
    | CabalSpecV3_0
    -- 3.2: no changes
    | CabalSpecV3_4
    | CabalSpecV3_6
    | CabalSpecV3_8
  deriving (CabalSpecVersion -> CabalSpecVersion -> Bool
(CabalSpecVersion -> CabalSpecVersion -> Bool)
-> (CabalSpecVersion -> CabalSpecVersion -> Bool)
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$cCabalSpecV3_8 :: Constr
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-> (forall x. Rep CabalSpecVersion x -> CabalSpecVersion)
-> Generic CabalSpecVersion
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forall x. CabalSpecVersion -> Rep CabalSpecVersion x
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Generic)

instance Binary CabalSpecVersion
instance Structured CabalSpecVersion
instance NFData CabalSpecVersion where rnf :: CabalSpecVersion -> ()
rnf = CabalSpecVersion -> ()
forall a. (Generic a, GNFData (Rep a)) => a -> ()
genericRnf

-- | Show cabal spec version, but not the way in the .cabal files
--
-- @since 3.0.0.0
showCabalSpecVersion :: CabalSpecVersion -> String
showCabalSpecVersion :: CabalSpecVersion -> String
showCabalSpecVersion CabalSpecVersion
CabalSpecV3_8  = String
"3.8"
showCabalSpecVersion CabalSpecVersion
CabalSpecV3_6  = String
"3.6"
showCabalSpecVersion CabalSpecVersion
CabalSpecV3_4  = String
"3.4"
showCabalSpecVersion CabalSpecVersion
CabalSpecV3_0  = String
"3.0"
showCabalSpecVersion CabalSpecVersion
CabalSpecV2_4  = String
"2.4"
showCabalSpecVersion CabalSpecVersion
CabalSpecV2_2  = String
"2.2"
showCabalSpecVersion CabalSpecVersion
CabalSpecV2_0  = String
"2.0"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_24 = String
"1.24"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_22 = String
"1.22"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_20 = String
"1.20"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_18 = String
"1.18"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_12 = String
"1.12"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_10 = String
"1.10"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_8  = String
"1.8"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_6  = String
"1.6"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_4  = String
"1.4"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_2  = String
"1.2"
showCabalSpecVersion CabalSpecVersion
CabalSpecV1_0  = String
"1.0"

cabalSpecLatest :: CabalSpecVersion
cabalSpecLatest :: CabalSpecVersion
cabalSpecLatest = CabalSpecVersion
CabalSpecV3_8

-- | Parse 'CabalSpecVersion' from version digits.
--
-- It may fail if for recent versions the version is not exact.
--
cabalSpecFromVersionDigits :: [Int] -> Maybe CabalSpecVersion
cabalSpecFromVersionDigits :: [Int] -> Maybe CabalSpecVersion
cabalSpecFromVersionDigits [Int]
v
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
3,Int
8]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV3_8
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
3,Int
6]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV3_6
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
3,Int
4]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV3_4
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
3,Int
0]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV3_0
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
2,Int
4]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV2_4
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
2,Int
2]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV2_2
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Eq a => a -> a -> Bool
== [Int
2,Int
0]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV2_0
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
25] = Maybe CabalSpecVersion
forall a. Maybe a
Nothing
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
23] = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_24
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
21] = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_22
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
19] = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_20
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
17] = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_18
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
11] = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_12
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
9]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_10
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
7]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_8
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
5]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_6
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
3]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_4
    | [Int]
v [Int] -> [Int] -> Bool
forall a. Ord a => a -> a -> Bool
>= [Int
1,Int
1]  = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_2
    | Bool
otherwise   = CabalSpecVersion -> Maybe CabalSpecVersion
forall a. a -> Maybe a
Just CabalSpecVersion
CabalSpecV1_0

-- | @since 3.4.0.0
cabalSpecToVersionDigits :: CabalSpecVersion -> [Int]
cabalSpecToVersionDigits :: CabalSpecVersion -> [Int]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV3_8   = [Int
3,Int
8]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV3_6   = [Int
3,Int
6]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV3_4   = [Int
3,Int
4]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV3_0   = [Int
3,Int
0]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV2_4   = [Int
2,Int
4]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV2_2   = [Int
2,Int
2]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV2_0   = [Int
2,Int
0]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_24  = [Int
1,Int
24]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_22  = [Int
1,Int
22]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_20  = [Int
1,Int
20]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_18  = [Int
1,Int
18]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_12  = [Int
1,Int
12]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_10  = [Int
1,Int
10]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_8   = [Int
1,Int
8]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_6   = [Int
1,Int
6]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_4   = [Int
1,Int
4]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_2   = [Int
1,Int
2]
cabalSpecToVersionDigits CabalSpecVersion
CabalSpecV1_0   = [Int
1,Int
0]

-- | What is the minimum Cabal library version which knows how handle
-- this spec version.
--
-- /Note:/ this is a point where we could decouple cabal-spec and Cabal
-- versions, if we ever want that.
--
-- >>> cabalSpecMinimumLibraryVersion CabalSpecV3_0
-- [2,5]
--
-- >>> cabalSpecMinimumLibraryVersion CabalSpecV2_4
-- [2,3]
--
-- @since 3.4.0.0
cabalSpecMinimumLibraryVersion :: CabalSpecVersion -> [Int]
cabalSpecMinimumLibraryVersion :: CabalSpecVersion -> [Int]
cabalSpecMinimumLibraryVersion CabalSpecVersion
CabalSpecV1_0 = [Int
1,Int
0]
cabalSpecMinimumLibraryVersion CabalSpecVersion
csv = case CabalSpecVersion -> [Int]
cabalSpecToVersionDigits (CabalSpecVersion -> CabalSpecVersion
forall a. Enum a => a -> a
pred CabalSpecVersion
csv) of
    [Int
x,Int
y] -> [Int
x, Int
yInt -> Int -> Int
forall a. Num a => a -> a -> a
+Int
1]
    [Int]
xs    -> [Int]
xs

specHasCommonStanzas :: CabalSpecVersion -> HasCommonStanzas
specHasCommonStanzas :: CabalSpecVersion -> HasCommonStanzas
specHasCommonStanzas CabalSpecVersion
v =
    if CabalSpecVersion
v CabalSpecVersion -> CabalSpecVersion -> Bool
forall a. Ord a => a -> a -> Bool
>= CabalSpecVersion
CabalSpecV2_2
    then HasCommonStanzas
HasCommonStanzas
    else HasCommonStanzas
NoCommonStanzas

specHasElif :: CabalSpecVersion -> HasElif
specHasElif :: CabalSpecVersion -> HasElif
specHasElif CabalSpecVersion
v =
    if CabalSpecVersion
v CabalSpecVersion -> CabalSpecVersion -> Bool
forall a. Ord a => a -> a -> Bool
>= CabalSpecVersion
CabalSpecV2_2
    then HasElif
HasElif
    else HasElif
NoElif

-------------------------------------------------------------------------------
-- Booleans
-------------------------------------------------------------------------------

-- IDEA: make some kind of tagged booleans?
data HasElif = HasElif | NoElif
  deriving (HasElif -> HasElif -> Bool
(HasElif -> HasElif -> Bool)
-> (HasElif -> HasElif -> Bool) -> Eq HasElif
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: HasElif -> HasElif -> Bool
$c/= :: HasElif -> HasElif -> Bool
== :: HasElif -> HasElif -> Bool
$c== :: HasElif -> HasElif -> Bool
Eq, Int -> HasElif -> ShowS
[HasElif] -> ShowS
HasElif -> String
(Int -> HasElif -> ShowS)
-> (HasElif -> String) -> ([HasElif] -> ShowS) -> Show HasElif
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [HasElif] -> ShowS
$cshowList :: [HasElif] -> ShowS
show :: HasElif -> String
$cshow :: HasElif -> String
showsPrec :: Int -> HasElif -> ShowS
$cshowsPrec :: Int -> HasElif -> ShowS
Show)

data HasCommonStanzas = HasCommonStanzas | NoCommonStanzas
  deriving (HasCommonStanzas -> HasCommonStanzas -> Bool
(HasCommonStanzas -> HasCommonStanzas -> Bool)
-> (HasCommonStanzas -> HasCommonStanzas -> Bool)
-> Eq HasCommonStanzas
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: HasCommonStanzas -> HasCommonStanzas -> Bool
$c/= :: HasCommonStanzas -> HasCommonStanzas -> Bool
== :: HasCommonStanzas -> HasCommonStanzas -> Bool
$c== :: HasCommonStanzas -> HasCommonStanzas -> Bool
Eq, Int -> HasCommonStanzas -> ShowS
[HasCommonStanzas] -> ShowS
HasCommonStanzas -> String
(Int -> HasCommonStanzas -> ShowS)
-> (HasCommonStanzas -> String)
-> ([HasCommonStanzas] -> ShowS)
-> Show HasCommonStanzas
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [HasCommonStanzas] -> ShowS
$cshowList :: [HasCommonStanzas] -> ShowS
show :: HasCommonStanzas -> String
$cshow :: HasCommonStanzas -> String
showsPrec :: Int -> HasCommonStanzas -> ShowS
$cshowsPrec :: Int -> HasCommonStanzas -> ShowS
Show)

data HasGlobstar = HasGlobstar | NoGlobstar