Fix branch name detection (#21)

For old git version.
at-wat · Aug 2, 2020 · f7ad591 · f7ad591
1 parent 021d7cf
commit f7ad591
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/entrypoint.sh b/entrypoint.sh
@@ -7,7 +7,7 @@ cd "${GITHUB_WORKSPACE}" \
 
 set -eu
 
-BRANCH_NAME=$(git branch --show-current)
+BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
 
 if [ ! -z "${INPUT_ISSUE_TITLE:-}" ]
 then