IHaskell/.travis.yml

matrix:
  allow_failures:
    - language: nix
  fast_finish: true
  include:
    - env: DISPLAY=true   USE_STACK_YAML="stack.yaml"     # GHC 8.0.2
      language: python
      # Test against different stack LTS versions.

      # Choose a lightweight base image; we provide our own build tools.
      python: "3.6"

      # Enable caching.
      sudo: false

      # Caching so the next build will be fast too.
      # These caches are the same between resolvers, but this is fine, 
      # as Stack differentiates between its resolvers.
      cache:
        directories:
        - $HOME/.ghc
        - $HOME/.cabal
        - $HOME/.stack
        - $HOME/zeromq

      # Enable packages we need.
      # Not all packages are available – see before_install for from-source builds. 
      addons:
        apt:
          packages:
            - libmagic-dev     # magic
            - libgmp-dev       # ghc
            - libblas-dev      # hmatrix
            - liblapack-dev    # hmatrix
            - libcairo2-dev    # cairo
            - libpango1.0-dev  # pango

      before_install:
          # Download and unpack the stack executable
        - export PATH=$HOME/.local/bin:$PATH
        - mkdir -p ~/.local/bin
        - curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'

          # Install zeromq3 -- the package is not supported yet on Travis whitelist... (06/06/2016)
        - |
          if [ ! -d "$HOME/zeromq/lib" ]; then
              export OLDPWD=$(pwd) 
              travis_retry git clone http://www.github.com/zeromq/zeromq4-x.git libzmq
              mkdir $HOME/zeromq
              cd libzmq
              travis_retry ./autogen.sh
              travis_retry ./configure --prefix=$HOME/zeromq
              make
              travis_retry make install
              cd $OLDPWD
          fi

          # Upgrades to avoid later build problems
        - pip install -U pip
        - pip install -U setuptools

          # Install nbconvert for testing the notebook
        - pip install jupyter notebook nbconvert

      # This step takes the longest, and is what generates the Stack cache. 
      install:
        # Set path for pkg-config to find zeromq, otherwise install of zeromq4-haskell fails.
        - export PKG_CONFIG_PATH=$HOME/zeromq/lib/pkgconfig/
        - |
          # Used to avoid 'source and destination file are the same' error
          mv $USE_STACK_YAML intermediate-stack.yaml
          mv intermediate-stack.yaml stack.yaml

          echo "apply-ghc-options: everything" >> stack.yaml

        - stack setup
        - stack install gtk2hs-buildtools --fast
        - stack build hmatrix --fast
        - stack build --dependencies-only --fast

      script:
        - export LD_LIBRARY_PATH=$HOME/zeromq/lib
        - stack test --no-terminal --fast
        - |
          set -e
          if $DISPLAY; then
              TOP=$(pwd)
              stack build --no-terminal --fast

              # Ensure that ipython-kernel examples build successfully.
              stack build ipython-kernel --flag ipython-kernel:examples --fast

              # Ensure that IHaskell notebook remains unchanged.
              # Run the notebook to regenerate the outputs, then compare the new notebook to the old one.
              stack install --fast
              stack exec -- ihaskell install --stack
              stack exec -- jupyter nbconvert --to=notebook --execute --stdout notebooks/IHaskell.ipynb > ~/ihaskell-out.ipynb

              # Images are rendered differently on different systems, so filter them out in the comparison
              diff <(grep -v image/png ~/ihaskell-out.ipynb) <(grep -v image/png notebooks/IHaskell.ipynb)
          fi
    - env: DISPLAY=true   USE_STACK_YAML="stack-8.2.yaml"     # GHC 8.2.1
      language: python
      # Test against different stack LTS versions.

      # Choose a lightweight base image; we provide our own build tools.
      python: "3.6"

      # Enable caching.
      sudo: false

      # Caching so the next build will be fast too.
      # These caches are the same between resolvers, but this is fine, 
      # as Stack differentiates between its resolvers.
      cache:
        directories:
        - $HOME/.ghc
        - $HOME/.cabal
        - $HOME/.stack
        - $HOME/zeromq

      # Enable packages we need.
      # Not all packages are available – see before_install for from-source builds. 
      addons:
        apt:
          packages:
            - libmagic-dev     # magic
            - libgmp-dev       # ghc
            - libblas-dev      # hmatrix
            - liblapack-dev    # hmatrix
            - libcairo2-dev    # cairo
            - libpango1.0-dev  # pango

      before_install:
          # Download and unpack the stack executable
        - export PATH=$HOME/.local/bin:$PATH
        - mkdir -p ~/.local/bin
        - curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'

          # Install zeromq3 -- the package is not supported yet on Travis whitelist... (06/06/2016)
        - |
          if [ ! -d "$HOME/zeromq/lib" ]; then
              export OLDPWD=$(pwd) 
              travis_retry git clone http://www.github.com/zeromq/zeromq4-x.git libzmq
              mkdir $HOME/zeromq
              cd libzmq
              travis_retry ./autogen.sh
              travis_retry ./configure --prefix=$HOME/zeromq
              make
              travis_retry make install
              cd $OLDPWD
          fi

          # Upgrades to avoid later build problems
        - pip install -U pip
        - pip install -U setuptools

          # Install nbconvert for testing the notebook
        - pip install jupyter notebook nbconvert

      # This step takes the longest, and is what generates the Stack cache. 
      install:
        # Set path for pkg-config to find zeromq, otherwise install of zeromq4-haskell fails.
        - export PKG_CONFIG_PATH=$HOME/zeromq/lib/pkgconfig/
        - |
          # Used to avoid 'source and destination file are the same' error
          mv $USE_STACK_YAML intermediate-stack.yaml
          mv intermediate-stack.yaml stack.yaml

          echo "apply-ghc-options: everything" >> stack.yaml

        - stack setup
        - stack install gtk2hs-buildtools --fast
        - stack build hmatrix --fast
        - stack build --dependencies-only --fast

      script:
        - export LD_LIBRARY_PATH=$HOME/zeromq/lib
        - stack test --no-terminal --fast
        - |
          set -e
          if $DISPLAY; then
              TOP=$(pwd)
              stack build --no-terminal --fast

              # Ensure that ipython-kernel examples build successfully.
              stack build ipython-kernel --flag ipython-kernel:examples --fast

              # Ensure that IHaskell notebook remains unchanged.
              # Run the notebook to regenerate the outputs, then compare the new notebook to the old one.
              stack install --fast
              stack exec -- ihaskell install --stack
              stack exec -- jupyter nbconvert --to=notebook --execute --stdout notebooks/IHaskell.ipynb > ~/ihaskell-out.ipynb

              # Images are rendered differently on different systems, so filter them out in the comparison
              diff <(grep -v image/png ~/ihaskell-out.ipynb) <(grep -v image/png notebooks/IHaskell.ipynb)
          fi
    - language: nix
      env: RELEASE_NIX="release.nix"
      cache:
        directories:
        - /nix/store
      install:
        - export NIX_CONF_DIR=~
        - echo "binary-caches = http://128.199.234.106:3000" >> $NIX_CONF_DIR/nix.conf
        - echo "binary-cache-public-keys = 128.199.234.106:jzUyrIQHov5i6f94jQVriqPDLuPYlZPAsga3W3k+L8E=" >> $NIX_CONF_DIR/nix.conf
      script: nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/a0b50eab599005127476e7b3b4ae8bd2d363091b.tar.gz $RELEASE_NIX
    - language: nix
      env: RELEASE_NIX="release-8.2.nix"
      cache:
        directories:
        - /nix/store
      install:
        - export NIX_CONF_DIR=~
        - echo "binary-caches = http://128.199.234.106:3000" >> $NIX_CONF_DIR/nix.conf
        - echo "binary-cache-public-keys = 128.199.234.106:jzUyrIQHov5i6f94jQVriqPDLuPYlZPAsga3W3k+L8E=" >> $NIX_CONF_DIR/nix.conf
      script: nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/a0b50eab599005127476e7b3b4ae8bd2d363091b.tar.gz $RELEASE_NIX