[英]haskell-stack: main module to load is ambiguous
我有多個名稱不沖突的可執行文件。 然而stack ghci
抱怨主模塊不明確:
$ find . -type f -exec grep -Hi "apple\|banana" {} \; | grep -v work
./ambig.cabal:executable apple
./ambig.cabal: main-is: Apple.hs
./ambig.cabal: ghc-options: -main-is Apple.apple
./ambig.cabal:executable banana
./ambig.cabal: main-is: Banana.hs
./ambig.cabal: ghc-options: -main-is Banana.banana
./src/Apple.hs:module Apple (apple) where
./src/Apple.hs:apple :: IO ()
./src/Apple.hs:apple = putStrLn "I am apple"
./src/Banana.hs:module Banana (banana) where
./src/Banana.hs:banana :: IO ()
./src/Banana.hs:banana = putStrLn "I am banana"
$ stack ghci
The main module to load is ambiguous. Candidates are: [...]
$ stack --version
Version 1.5.1, Git revision 600c1f01435a10d127938709556c1682ecfd694e
如何讓stack ghci
加載所有這些不沖突的模塊?
完整的 cabal 文件:
$ cat ambig.cabal
name: ambig
version: 0.1.0.0
build-type: Simple
cabal-version: >=1.10
executable apple
hs-source-dirs: src
main-is: Apple.hs
ghc-options: -main-is Apple.apple
default-language: Haskell2010
build-depends: base >= 4.7 && < 5
executable banana
hs-source-dirs: src
main-is: Banana.hs
ghc-options: -main-is Banana.banana
default-language: Haskell2010
build-depends: base >= 4.7 && < 5
我遇到了同樣的問題,如果我將我在我的項目中所做的轉換為您的項目,您應該能夠執行以下任一操作來選擇主模塊:
stack ghci --main-is ambig:exe:apple
或
stack ghci --main-is ambig:exe:banana
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