Fix travis before_script

Author: mrkn

.travis.yml

@@ -49,5 +49,6 @@ install:
 - ci/travis_install.sh
 
 before_script:
+- . ci/travis_before_script.sh
 - bundle exec rake clobber compile
 - python lib/pycall/python/investigator.py

ci/travis_before_script.sh

@@ -0,0 +1,21 @@
+__DIR__=$(cd $(dirname $BASH_SOURCE); pwd)
+. $__DIR__/travis_retry.sh
+
+set -ex
+
+if test -z "$PYENV_VERSION"; then
+  echo "ERROR: PYENV_VERSION is not provided" >2
+  exit 1
+fi
+
+if test -n "$LIBPYTHON"; then
+  export LIBPYTHON=$(pyenv root)/$LIBPYTHON
+fi
+
+case "$PYENV_VERSION" in
+*conda*)
+  source $(pyenv prefix)/bin/activate test-environment
+  ;;
+esac
+
+set +ex

ci/travis_install.sh

@@ -11,7 +11,7 @@ if test -z "$PYENV_VERSION"; then
 fi
 
 if test -n "$LIBPYTHON"; then
-  LIBPYTHON=$(pyenv root)/$LIBPYTHON
+  export LIBPYTHON=$(pyenv root)/$LIBPYTHON
 fi
 
 if test "$PYENV_VERSION" = "system"; then