Fix HLS CI

.github/workflows/common.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+if [ "${RUNNER_OS}" = "Windows" ] ; then
+	ext=".exe"
+else
+	ext=''
+fi
+
+echo_color() {
+  local color="$1"
+  local msg="$2"
+  echo -e "\033[${color}m${msg}\033[0m"
+}
+
+error() { echo_color "${RED}" "$1"; }
+warn() { echo_color "${LT_BROWN}" "$1"; }
+info() { echo_color "${LT_BLUE}" "$1"; }
+
+fail() { error "error: $1"; exit 1; }
+
+mktempdir() {
+	case "$(uname -s)" in
+		"Darwin"|"darwin")
+			mktemp -d -t hls_ci.XXXXXXX
+			;;
+		*)
+			mktemp -d
+			;;
+	esac
+}