Improve vader test (#2916)

* Add vader test for v0.3.7

* Add lua

* Use lua5.2

* Print lua version

.ci/install.sh

@@ -16,18 +16,21 @@ elif [ "${LINT#vint}" != "$LINT" ]; then
     pip install vim-vint pathlib enum34 typing
 elif [ "${LINT#vader}" != "$LINT" ]; then
     git clone --depth=1 https://github.com/Shougo/dein.vim.git ~/.cache/vimfiles/repos/github.com/Shougo/dein.vim
-    if [[ ! -d "${DEPS}/_neovim" ]]; then
-        mkdir -p "${DEPS}/_neovim"
-        wget -q -O - https://github.com/neovim/neovim/releases/download/nightly/nvim-${TRAVIS_OS_NAME}64.tar.gz \
-            | tar xzf - --strip-components=1 -C "${DEPS}/_neovim"
+    if [[ ! -d "${DEPS}/_neovim_${NVIM_TAG}" ]]; then
+        mkdir -p "${DEPS}/_neovim_${NVIM_TAG}"
+        wget -q -O - https://github.com/neovim/neovim/releases/download/${NVIM_TAG}/nvim-${TRAVIS_OS_NAME}64.tar.gz \
+            | tar xzf - --strip-components=1 -C "${DEPS}/_neovim_${NVIM_TAG}"
 
     fi
-    export PATH="${DEPS}/_neovim/bin:${PATH}"
+    export PATH="${DEPS}/_neovim_${NVIM_TAG}/bin:${PATH}"
     echo "\$PATH: \"${PATH}\""
 
-    export VIM="${DEPS}/_neovim/share/nvim/runtime"
+    export VIM="${DEPS}/_neovim_${NVIM_TAG}/share/nvim/runtime"
     echo "\$VIM: \"${VIM}\""
+    echo "=================  nvim version ======================"
     nvim --version
+    echo "=================  lua version ======================"
+    lua -v
 elif [ "$LINT" = "jekyll" ]; then
     .ci/bootstrap
 fi

.ci/script.sh

@@ -24,10 +24,10 @@ elif [ "$LINT" = "vint" ]; then
 elif [ "$LINT" = "vint-errors" ]; then
     vint --error .
 elif [ "$LINT" = "vader" ]; then
-    export PATH="${DEPS}/_neovim/bin:${PATH}"
+    export PATH="${DEPS}/_neovim_${NVIM_TAG}/bin:${PATH}"
     echo "\$PATH: \"${PATH}\""
 
-    export VIM="${DEPS}/_neovim/share/nvim/runtime"
+    export VIM="${DEPS}/_neovim_${NVIM_TAG}/share/nvim/runtime"
     echo "\$VIM: \"${VIM}\""
     nvim --version
     pip install covimerage

.travis.yml

@@ -33,8 +33,10 @@ jobs:
     - env: LINT=vimlint VIM=nvim VIM_VERSION=v0.2.0
     - env: LINT=vint-errors VIM=nvim VIM_VERSION=v0.2.0
     - env: LINT=vint VIM=nvim VIM_VERSION=v0.2.0
-    - env: LINT=vader
-      addons: { apt: { packages: [python2.7-dev] } }
+    - env: LINT=vader NVIM_TAG=nightly
+      addons: { apt: { packages: [python2.7-dev, lua5.2] } }
+    - env: LINT=vader NVIM_TAG=v0.3.7
+      addons: { apt: { packages: [python2.7-dev, lua5.2] } }
   allow_failures:
     - env: LINT=vimlint VIM=nvim VIM_VERSION=v0.2.0
     - env: LINT=vint VIM=nvim VIM_VERSION=v0.2.0