Allow PRs to be previewed at http://preview.twbsapps.com (#20179)

grunt/upload-preview.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# Upload built docs to preview.twbsapps.com
+
+if [ "$TRAVIS_REPO_SLUG" != twbs-savage/bootstrap ]; then exit 0; fi
+
+# Add build metadata to version
+sed -i "/^current_version:/ s/\$/+pr.${TRAVIS_COMMIT}/" _config.yml
+# Fix URLs since the site's root is now a subdirectory
+echo "baseurl: /c/${TRAVIS_COMMIT}" >> _config.yml
+bundle exec jekyll build --destination "$TRAVIS_COMMIT"
+
+# Install gcloud & gsutil
+GSUTIL_VERSION=$(gsutil version | cut -d ' ' -f 3)
+if [ ! -d "${HOME}/google-cloud-sdk" ] || [ "${GSUTIL_VERSION}" != '4.19' ]; then
+  rm -rf "${HOME}/google-cloud-sdk" # Kill Travis' outdated non-updateable preinstalled version
+  echo 'Installing google-cloud-sdk...'
+  export CLOUDSDK_CORE_DISABLE_PROMPTS=1
+  time (curl -S -s https://sdk.cloud.google.com | bash &>/dev/null)
+  echo 'Done.'
+fi
+source "${HOME}/google-cloud-sdk/path.bash.inc"
+
+openssl aes-256-cbc -K $encrypted_2b749c8e6327_key -iv $encrypted_2b749c8e6327_iv -in grunt/gcp-key.json.enc -out grunt/gcp-key.json -d
+gcloud auth activate-service-account "$GCP_SERVICE_ACCOUNT" --key-file grunt/gcp-key.json &> /dev/null || (echo 'GCP login failed!'; exit 1)
+
+echo "Uploading to http://preview.twbsapps.com/c/${TRAVIS_COMMIT} ..."
+time gsutil -q -m cp -z html,css,js,svg -r "./${TRAVIS_COMMIT}" gs://preview.twbsapps.com/c/
+echo 'Done.'