From fc019e513c12a677513392a341e779af2a0bf630 Mon Sep 17 00:00:00 2001
From: Brad Rydzewski <brad.rydzewski@gmail.com>
Date: Thu, 29 Oct 2020 10:18:31 -0400
Subject: [PATCH] fix checkout by branch

---
 posix/clone-commit | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/posix/clone-commit b/posix/clone-commit
index 00405e4..023ed70 100755
--- a/posix/clone-commit
+++ b/posix/clone-commit
@@ -23,11 +23,16 @@ if [[ -z "${DRONE_COMMIT_BRANCH}" ]]; then
 	exit 0
 fi
 
+# the commit sha may be empty for builds that are
+# manually triggered in Harness CI Enterprise. If
+# the commit is empty we clone the branch. Note that
+# we intentially omit depth flags to avoid failed
+# clones due to lack of history.
 if [[ -z "${DRONE_COMMIT_SHA}" ]]; then
 	set -e
 	set -x
-	git fetch ${FLAGS} origin +refs/heads/${DRONE_COMMIT_BRANCH}:
-	git checkout -b ${DRONE_COMMIT_BRANCH}
+	git fetch origin +refs/heads/${DRONE_COMMIT_BRANCH}:
+	git checkout -b ${DRONE_COMMIT_BRANCH} origin/${DRONE_COMMIT_BRANCH}
 	exit 0
 fi