Add Travis CI

Run Travis each time we push.

.travis.yml

@@ -0,0 +1,64 @@
+language: c
+
+# Based from: https://github.com/greghendershott/travis-racket
+
+# Optional: Remove to use Travis CI's older infrastructure.
+sudo: false
+
+env:
+  global:
+    # Supply a global RACKET_DIR environment variable. This is where
+    # Racket will be installed. A good idea is to use ~/racket because
+    # that doesn't require sudo to install and is therefore compatible
+    # with Travis CI's newer container infrastructure.
+    - RACKET_DIR=~/racket
+  matrix:
+    # Supply at least one RACKET_VERSION environment variable. This is
+    # used by the install-racket.sh script (run at before_install,
+    # below) to select the version of Racket to download and install.
+    #
+    # Supply more than one RACKET_VERSION (as in the example below) to
+    # create a Travis-CI build matrix to test against multiple Racket
+    # versions.
+    - RACKET_VERSION=6.5
+    - RACKET_VERSION=6.6
+    - RACKET_VERSION=6.7
+    - RACKET_VERSION=6.8
+    - RACKET_VERSION=6.9
+    - RACKET_VERSION=6.10
+    - RACKET_VERSION=6.11
+    - RACKET_VERSION=HEAD
+
+matrix:
+  allow_failures:
+    env: RACKET_VERSION=HEAD
+    fast_finish: true
+
+before_install:
+- git clone https://github.com/greghendershott/travis-racket.git
+- cat travis-racket/install-racket.sh | bash # pipe to bash not sh!
+- export PATH="${RACKET_DIR}/bin:${PATH}" #install-racket.sh can't set for us
+
+install:
+ - raco pkg install --deps search-auto cover
+ - raco pkg install --auto --name pie --link $TRAVIS_BUILD_DIR
+
+before_script:
+  # Set up an X server, so GTK doesn't fail to initialize for GUI tests
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+  - sleep 3 # give xvfb some time to start
+
+# Here supply steps such as raco make, raco test, etc.  Note that you
+# need to supply /usr/racket/bin/ -- it's not in PATH. You can run
+# `raco pkg install --deps search-auto pie` to install any required
+# packages without it getting stuck on a confirmation prompt.
+script:
+ - raco test -ep pie
+
+after_success:
+ - raco setup --check-deps pie
+ - raco pkg install --deps search-auto cover-coveralls
+ - raco pkg install --deps search-auto
+ - raco cover -b -f coveralls -d $TRAVIS_BUILD_DIR/coverage -p pie
+