[ci] Avoid bundle warnings about --path

.travis/before_install.sh

@@ -15,7 +15,9 @@ bash .travis/install-openjdk.sh $OPENJDK_VERSION
 
 if travis_isLinux; then
     gem install bundler
-    bundle install --with=release_notes_preprocessing --path=vendor/bundle
+    bundle config set --local path vendor/bundle
+    bundle config set --local with release_notes_preprocessing
+    bundle install
 else
     log_info "Not setting up ruby for ${TRAVIS_OS_NAME}."
     exit 0

.travis/build-doc.sh

@@ -88,6 +88,7 @@ function generate_jekyll_doc() {
 
     echo -e "\n\n"
     log_info "Building documentation using jekyll..."
+    bundle config set --local path vendor/bundle
     bundle install
     bundle exec jekyll build
 

do-release.sh

@@ -122,7 +122,9 @@ echo "Press enter to continue..."
 read
 
 # install bundles needed for rendering release notes
-bundle install --with=release_notes_preprocessing --path vendor/bundle
+bundle config set --local path vendor/bundle
+bundle config set --local with release_notes_preprocessing
+bundle install
 
 export RELEASE_NOTES_POST="_posts/$(date -u +%Y-%m-%d)-PMD-${RELEASE_VERSION}.md"
 echo "Generating ../pmd.github.io/${RELEASE_NOTES_POST}..."

docs/build-docs.sh

@@ -1,3 +1,4 @@
-bundle install --path vendor/bundle
+bundle config set --local path vendor/bundle
+bundle install
 bundle update
 bundle exec jekyll build