refac: project

rootfs/usr/local/bin/clone-commit

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -x
+
+FLAGS=""
+if [[ -n "${PLUGIN_DEPTH}" ]]; then
+	FLAGS="--depth=${PLUGIN_DEPTH}"
+fi
+
+if [ ! -d .git ]; then
+	git init
+	git remote add origin "${DRONE_REMOTE_URL}"
+fi
+
+# the branch may be empty for certain event types,
+# such as github deployment events. If the branch
+# is empty we checkout the sha directly. Note that
+# we intentially omit depth flags to avoid failed
+# clones due to lack of history.
+if [[ -z "${DRONE_COMMIT_BRANCH}" ]]; then
+	set -e
+	set -x
+	git fetch origin
+	git checkout --quiet --force "${DRONE_COMMIT_SHA}"
+	exit 0
+fi
+
+# the commit sha may be empty for builds that are
+# manually triggered in Harness CI Enterprise. If
+# the commit is empty we clone the branch.
+if [[ -z "${DRONE_COMMIT_SHA}" ]]; then
+	set -e
+	set -x
+	git fetch "${FLAGS}" origin "+refs/heads/${DRONE_COMMIT_BRANCH}:"
+	git checkout -b "${DRONE_COMMIT_BRANCH}" "origin/${DRONE_COMMIT_BRANCH}"
+	exit 0
+fi
+
+set -e
+set -x
+
+git fetch "${FLAGS}" origin "+refs/heads/${DRONE_COMMIT_BRANCH}:"
+git checkout "${DRONE_COMMIT_SHA}" -b "${DRONE_COMMIT_BRANCH}"