Adding travis ci

.gitignore

@@ -1,5 +1,6 @@
 *.hi
 notebooks/Test.ipynb
+notebooks/Untitled.ipynb
 *.o
 dist
 IHaskell/GHC

.travis.yml

@@ -0,0 +1,48 @@
+# Taken from multi-ghc-travis
+# NB: don't set `language: haskell` here
+
+# The following enables several GHC versions to be tested; often it's enough to test only against the last release in a major GHC version. Feel free to omit lines listings versions you don't need/want testing for.
+env:
+ - CABALVER=1.18 GHCVER=7.6.3
+ - CABALVER=1.18 GHCVER=7.8.4 # see note about Alex/Happy for GHC >= 7.8
+ - CABALVER=1.22 GHCVER=7.10.1
+ - CABALVER=head GHCVER=head   # see section about GHC HEAD snapshots
+
+# Note: the distinction between `before_install` and `install` is not important.
+before_install:
+ - travis_retry sudo add-apt-repository -y ppa:hvr/ghc
+ - travis_retry sudo apt-get update
+ - travis_retry sudo apt-get install cabal-install-$CABALVER ghc-$GHCVER # see note about happy/alex
+ - travis_retry git clone git@github.com:zeromq/zeromq4-x.git libzmq
+ - cd libzmq && travis_retry ./autogen.sh && travis_retry ./configure && make && travis_retry sudo make install && travis_retry sudo ldconfig
+ - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH
+ - |
+   if [ $GHCVER = "head" ] || [ ${GHCVER%.*} = "7.8" ] || [ ${GHCVER%.*} = "7.10" ]; then
+     travis_retry sudo apt-get install happy-1.19.4 alex-3.1.3
+     export PATH=/opt/alex/3.1.3/bin:/opt/happy/1.19.4/bin:$PATH
+   else
+     travis_retry sudo apt-get install happy alex
+   fi
+
+install:
+ - cabal --version
+ - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
+ - travis_retry cabal update
+
+# Here starts the actual work to be performed for the package under test; any command which exits with a non-zero exit code causes the build to fail.
+script:
+ - if [ -f configure.ac ]; then autoreconf -i; fi
+ - cabal configure --enable-tests --enable-benchmarks -v2  # -v2 provides useful information for debugging
+ - ./build.sh all
+ - ./build.sh display
+ - cabal sdist
+
+# The following scriptlet checks that the resulting source distribution can be built & installed
+ - export SRC_TGZ=$(cabal info . | awk '{print $2 ".tar.gz";exit}') ;
+   cd dist/;
+   if [ -f "$SRC_TGZ" ]; then
+      cabal install --force-reinstalls "$SRC_TGZ";
+   else
+      echo "expected '$SRC_TGZ' not found";
+      exit 1;
+   fi