travis: use pyenv to install Jython 2.7.0

.travis.yml

@@ -6,6 +6,8 @@ matrix:
   include:
     - python: 2.7
       env: TOXENV=py27
+    - python: 2.7
+      env: TOXENV=jython
     - python: 3.3
       env: TOXENV=py33
     - python: 3.4

.travis/install.sh

@@ -36,14 +36,20 @@ if [[ "$(uname -s)" == 'Darwin' ]]; then
     pyenv rehash
     python -m pip install --user --upgrade pip virtualenv
 else
-    # on Linux, we only need pyenv to get the latest pypy
-    if [[ "${TOXENV}" == "pypy" ]]; then
+    # on Linux, we only need pyenv to get the latest pypy and jython
+    if [[ "${TOXENV}" == "pypy" || "${TOXENV}" == "jython" ]]; then
         git clone https://github.com/yyuu/pyenv.git ~/.pyenv
         PYENV_ROOT="$HOME/.pyenv"
         PATH="$PYENV_ROOT/bin:$PATH"
         eval "$(pyenv init -)"
-        pyenv install pypy-5.0.0
-        pyenv global pypy-5.0.0
+
+        if [[ "${TOXENV}" == "pypy" ]]; then
+            pyenv install pypy-5.0.0
+            pyenv global pypy-5.0.0
+        else
+            pyenv install jython-2.7.0
+            pyenv global jython-2.7.0
+        fi
         pyenv rehash
     fi
     pip install --upgrade pip virtualenv

.travis/run.sh

@@ -3,7 +3,7 @@
 set -e
 set -x
 
-if [[ "$(uname -s)" == "Darwin" || "${TOXENV}" == "pypy" ]]; then
+if [[ "$(uname -s)" == "Darwin" || "${TOXENV}" == "pypy" || "${TOXENV}" == "jython" ]]; then
     PYENV_ROOT="$HOME/.pyenv"
     PATH="$PYENV_ROOT/bin:$PATH"
     eval "$(pyenv init -)"