1 files changed, 45 insertions, 0 deletions
diff --git a/util/lint/helper_functions.sh b/util/lint/helper_functions.sh
new file mode 100644
index 000000000..7abdab861
--- /dev/null
+++ b/util/lint/helper_functions.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env sh
+#
+# SPDX-License-Identifier: GPL-2.0-only
+
+# This file is sourced by the linters so that each one doesn't have to
+# specify these routines individually
+
+LC_ALL=C export LC_ALL
+
+if [ -z "$GIT" ]; then
+	GIT="$(command -v git)"
+else
+	# If git is specified, Do a basic check that it runs and seems like
+	# it's actually git
+	if ! "${GIT}" --version | grep -q git; then
+		echo "Error: ${GIT} does not seem to be valid."
+		exit 1;
+	fi
+fi
+
+if [ "$(${GIT} rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then
+	IN_GIT_TREE=1
+else
+	IN_GIT_TREE=0
+fi
+
+if [ "${IN_GIT_TREE}" -eq 1 ] && [ -z "${GIT}" ]; then
+	echo "This test needs git to run.  Please install it, then run this test again."
+	exit 1
+fi
+
+# Use git ls-files if the code is in a git repo, otherwise use find.
+if [ "${IN_GIT_TREE}" -eq 1 ]; then
+	FIND_FILES="${GIT} ls-files"
+else
+	FIND_FILES="find "
+	FINDOPTS="-type f"
+fi
+
+# Use git grep if the code is in a git repo, otherwise use grep.
+if [ "${IN_GIT_TREE}" -eq 1 ]; then
+	GREP_FILES="${GIT} grep"
+else
+	GREP_FILES="grep -r"
+fi