👷 fix github env refs

Signed-off-by: Joe Runde <[email protected]>

Author: joerunde

scripts/get_image_tags.sh

@@ -15,22 +15,9 @@ then
   tags_to_push+=" ${branch}"
   tags_to_push+=" ${branch}.${commit}"
 else
-  # In CI, pull info from TRAVIS_ env vars
-  # we always have a commit
-  commit="${TRAVIS_COMMIT:0:7}"
-
-  # decide how to reference the build
-  # If PR build, use the PR number
-  # If tag build, use the tag
-  # If branch build, use the branch
-  if [[ "${TRAVIS_PULL_REQUEST}" == "false" ]];
-  then
-    # if it is a tag build, TRAVIS_BRANCH will be the tag
-    build_ref="${TRAVIS_BRANCH}"
-  else
-    # TRAVIS_PULL_REQUEST contains the PR number
-    build_ref="PR-${TRAVIS_PULL_REQUEST}"
-  fi
+  # In CI, pull info from github env vars
+  commit="${GITHUB_SHA:0:7}"
+  build_ref="${GITHUB_REF_NAME}"
 
   tags_to_push+="${commit}"
   tags_to_push+=" ${build_ref}"