build: move snapshot publish job to circleci (#13882)

Also switch to a single GitHub deploy token

scripts/deploy/publish-build-artifacts.sh

@@ -31,7 +31,7 @@ publishPackage() {
 
   buildDir="$(pwd)/dist/releases/${packageName}"
   buildVersion=$(node -pe "require('./package.json').version")
-  branchName=${TRAVIS_BRANCH:-'master'}
+  branchName=${CIRCLE_BRANCH:-'master'}
 
   commitSha=$(git rev-parse --short HEAD)
   commitAuthorName=$(git --no-pager show -s --format='%an' HEAD)

scripts/deploy/publish-docs-content.sh

@@ -8,9 +8,9 @@ set -e
 
 cd "$(dirname $0)/../../"
 
-if [ -z ${MATERIAL2_DOCS_CONTENT_TOKEN} ]; then
+if [ -z ${MATERIAL2_BUILDS_TOKEN} ]; then
   echo "Error: No access token for GitHub could be found." \
-       "Please set the environment variable 'MATERIAL2_DOCS_CONTENT_TOKEN'."
+       "Please set the environment variable 'MATERIAL2_BUILDS_TOKEN'."
   exit 1
 fi
 
@@ -38,7 +38,7 @@ docsContentRepoUrl="https://github.com/angular/material2-docs-content"
 buildVersion=$(node -pe "require('./package.json').version")
 
 # Name of the branch that is currently being deployed.
-branchName=${TRAVIS_BRANCH:-'master'}
+branchName=${CIRCLE_BRANCH:-'master'}
 
 # Additional information about the last commit for docs-content commits.
 commitSha=$(git rev-parse --short HEAD)
@@ -117,7 +117,7 @@ git config user.name "$commitAuthorName"
 git config user.email "$commitAuthorEmail"
 git config credential.helper "store --file=.git/credentials"
 
-echo "https://${MATERIAL2_DOCS_CONTENT_TOKEN}:@github.com" > .git/credentials
+echo "https://${MATERIAL2_BUILDS_TOKEN}:@github.com" > .git/credentials
 
 echo "Credentials for docs-content repository are now set up. Publishing.."