Try to fix Travis build

Author: squidfunk

.travis.yml

@@ -18,16 +18,19 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 # IN THE SOFTWARE.
 
-language: node_js
 sudo: false
 
-# Node.js version
-node_js: 8
-
 # Limit clone depth to 5, to speed up build
 git:
   depth: 5
 
-# Build script
+# Install Terraform
+install:
+  - curl -fSL "https://releases.hashicorp.com/terraform/0.11.11/terraform_0.11.11_linux_amd64.zip" -o terraform.zip
+  - sudo unzip terraform.zip -d /opt/terraform
+  - sudo ln -s /opt/terraform/terraform /usr/bin/terraform
+  - rm -f terraform.zip
+
+# Perform Terraform validation
 script:
-  - terraform fmt -check -diff
+  - terraform validate -check-variables=false

README.md

@@ -11,7 +11,7 @@
   [github-image]: https://img.shields.io/github/release/squidfunk/terraform-aws-github-ci.svg
   [github-link]: https://github.com/squidfunk/terraform-aws-github-ci/releases
 
-# [DEPRECATED] Terraform AWS GitHub CI
+# Terraform AWS GitHub CI
 
 > This project has been deprecated, as AWS CodeBuild now natively supports
 > automatic builds on new commits and reports status back to GitHub. However,