Cache bundles on travis, use bundle exec

.gitignore

@@ -11,3 +11,5 @@ bin/
 *.patch
 */src/site/site.xml
 pmd-core/dependency-reduced-pom.xml
+.bundle
+vendor

.travis.yml

@@ -34,7 +34,7 @@ before_install:
 # Install OracleJDK 10 - see https://sormuras.github.io/blog/2018-03-20-jdk-matrix.html
 install:
   - . ./install-jdk.sh -F 10 -L BCL
-  - bundle install
+  - bundle install --without=release_notes_preprocessing
 before_script: true
 script: source .travis/build-$BUILD.sh
 after_success: true
@@ -71,6 +71,7 @@ notifications:
 cache:
   directories:
   - "$HOME/.m2"
+  - vendor/bundle
 
 
 # Secure Keys, that need to be set for snapshot builds

.travis/release.sh

@@ -28,8 +28,11 @@ if [ "${BUILD}" = "deploy" ]; then
     true
 )
 
+# install the gems required for rendering the release notes
+bundle install --with=release_notes_preprocessing
+
 # renders, and skips the first 6 lines - the Jekyll front-matter
-RENDERED_RELEASE_NOTES=$(.travis/render_release_notes.rb docs/pages/release_notes.md | tail -n +6)
+RENDERED_RELEASE_NOTES=$(bundle exec .travis/render_release_notes.rb docs/pages/release_notes.md | tail -n +6)
 
 # Assumes, the release has already been created by travis github releases provider
 RELEASE_ID=$(curl -s -H "Authorization: token ${GITHUB_OAUTH_TOKEN}" https://api.github.com/repos/pmd/pmd/releases/tags/pmd_releases/${RELEASE_VERSION}|jq ".id")

.travis/render_release_notes.rb

@@ -15,6 +15,9 @@
 require_relative "../docs/_plugins/rule_tag"
 require_relative "../docs/_plugins/custom_filters"
 
+# explicitly setting safe mode to get rid of the warning
+SafeYAML::OPTIONS[:default_mode] = :safe
+
 # START OF THE SCRIPT
 
 unless ARGV.length == 1 && File.exists?(ARGV[0])

Gemfile

@@ -3,9 +3,7 @@ source 'https://rubygems.org/'
 gem 'pmdtester', '~> 1.0.0.pre.beta3'
 gem 'danger', '~> 5.6', '>= 5.6'
 
-# I think we could skip installing these if we're not a release build
-# https://docs.travis-ci.com/user/languages/ruby/#speeding-up-your-build-by-excluding-non-essential-dependencies
-# I don't know where to put that in .travis.yml though...
+# This group is only needed during release (via .travis/release.sh and do-release.sh)
 group :release_notes_preprocessing do
   gem 'liquid', '>=4.0.0'
   gem 'safe_yaml', '>=1.0'

do-release.sh

@@ -62,6 +62,10 @@ echo "Press enter to continue..."
 read
 
 
+# install bundles needed for rendering release notes
+bundle install with=release_notes_preprocessing --path vendor/bundle
+
+
 export RELEASE_VERSION
 export DEVELOPMENT_VERSION
 export CURRENT_BRANCH
@@ -137,7 +141,7 @@ read
 
 # update release_notes_old
 OLD_RELEASE_NOTES=$(tail -n +8 docs/pages/release_notes_old.md)
-NEW_RELEASE_NOTES=$(.travis/render_release_notes.rb docs/pages/release_notes.md | tail -n +6)
+NEW_RELEASE_NOTES=$(bundle exec .travis/render_release_notes.rb docs/pages/release_notes.md | tail -n +6)
 echo "$(head -n 7 docs/pages/release_notes_old.md)" > docs/pages/release_notes_old.md
 echo "$NEW_RELEASE_NOTES" >> docs/pages/release_notes_old.md
 echo >> docs/pages/release_notes_old.md