- # Download and unpack the stack executable
- - mkdir -p ~/.local/bin
- - export PATH=$HOME/.local/bin:$PATH
- - travis_retry curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
-
- - git clone https://github.com/haskell/haskell-ide-engine.git --recursive
- - cd haskell-ide-engine
- - git submodule sync
- - git submodule update
- # - cabal new-update
- # - cabal new-configure
- # - cabal new-build
- # - export PATH=dist-newstyle/build/*/ghc-*/haskell-ide-engine-*/x/hie/build:$PATH
- - stack --no-terminal --skip-ghc-check install -j2
- - stack exec hoogle generate
- - cd ..
+- export PATH=$HOME/.cabal/bin:$PATH
+- mkdir -p haskell-ide-engine
+- cd $HOME/haskell-ide-engine
+- git init
+- git remote add origin https://github.com/haskell/haskell-ide-engine.git
+- git pull origin master
+- git checkout abdb097f39e135deaf321a604c95f16cbda32678
+- git submodule update --init
+- cabal v2-install hie -j2
+- cabal v2-install hoogle -j2
+- hoogle generate
+- cd $TRAVIS_BUILD_DIR
+- cabal install Cabal --constraint "Cabal == 2.4.1.0"