always checkout new pyenv

Author: mckaymatt

.travis.yml

@@ -119,7 +119,7 @@ cache:
   # There is a "cache: cargo" option but it's fails if target/ isn't in the build dir
   directories:
     - $HOME/.cache/pip
-    - $HOME/.pyenv
+    - $HOME/.cache/pyenv
     - $HOME/.cargo  ## this may not be worth it depending on the time it takes to push/pull from S3
 
 branches:

ci/pyinstall.sh

@@ -2,13 +2,16 @@ set -ex
 
 PATH="$HOME/.pyenv/shims:$HOME/.pyenv/bin:$PATH"
 pyenv --version || true
-
-if [ -d "$HOME/.pyenv" ]; then
+if [ -d "$HOME/.pyenv/.git" ]; then
+    # for local testing
     pushd "$HOME/.pyenv"
     git pull
     popd
 else
+    rm -rf ~/.pyenv
     git clone https://github.com/yyuu/pyenv.git $HOME/.pyenv
+    mkdir -p ~/.cache/pyenv/versions
+    ln -s ~/.cache/pyenv/versions ~/.pyenv/versions
 fi
 
 if [ -z ${PYENV+x} ]; then