ci: Add caching for Ruby gems

.ci/deps.sh

@@ -46,10 +46,10 @@ go get -u github.com/golang/lint/golint
 go get -u golang.org/x/tools/cmd/goimports
 go get -u sourcegraph.com/sqs/goreturns
 go get -u golang.org/x/tools/cmd/gotype
-go get -u github.com/kisielk/errcheck 
+go get -u github.com/kisielk/errcheck
 
 # Ruby commands
-bundle install
+bundle install --path=vendor/bundle --binstubs=vendor/bin --jobs=8 --retry=3 
 
 for dep_version in "${dep_versions[@]}" ; do
   pyenv install -ks $dep_version
@@ -87,7 +87,7 @@ julia -e "Pkg.add(\"Lint\")"
 sudo luarocks install luacheck --deps-mode=none
 
 # Infer commands
-if [ ! -e ~/infer-linux64-v0.7.0/infer/bin ]; then 
+if [ ! -e ~/infer-linux64-v0.7.0/infer/bin ]; then
 	wget -nc -O ~/infer.tar.xz https://github.com/facebook/infer/releases/download/v0.7.0/infer-linux64-v0.7.0.tar.xz
 	tar xf ~/infer.tar.xz -C ~/
 	cd ~/infer-linux64-v0.7.0

.gitignore

@@ -31,7 +31,9 @@ site
 node_modules
 *.log
 *.jar
+.bundle
 .vendor
+vendor
 Goopfile.lock
 Gemfile.lock
 .Rhistory

circle.yml

@@ -3,7 +3,8 @@ dependencies:
     - ~/.pyenv/versions/3.4.3
     - ~/.pyenv/versions/3.5.1
     - ~/coala-bears/node_modules
-    - ~/.rvm/gems/ruby-2.1.5/gems/
+    - ~/coala-bears/.bundle
+    - ~/coala-bears/vendor
     - ~/.RLibrary
     - ~/dart-sdk/bin
     - ~/.cabal
@@ -16,6 +17,7 @@ dependencies:
     - ~/hlint_1.9.26-1_amd64.deb
   pre:
     - echo 'export PATH=$PATH:~/coala-bears/node_modules/.bin' >> ~/.circlerc
+    - echo 'export PATH=$PATH:~/coala-bears/vendor/bin' >> ~/.circlerc
     - echo 'export LINTR_COMMENT_BOT=false' >> ~/.circlerc
     - echo 'export PATH=$PATH:~/dart-sdk/bin' >> ~/.circlerc
     - echo 'export PATH=$PATH:~/.cabal/bin' >> ~/.circlerc