Add basic shell tests script framework

[lttng-ust.git] / tests / utils / utils.sh

diff --git a/tests/utils/utils.sh b/tests/utils/utils.sh
new file mode 100755 (executable)
index 0000000..cefb782
--- /dev/null
+++ b/tests/utils/utils.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (c) 2019 Michael Jeanson <mjeanson@efficios.com>
+# Copyright (C) 2019 Philippe Proulx <pproulx@efficios.com>
+#
+
+# This file is meant to be sourced at the start of shell script-based tests.
+
+
+# Error out when encountering an undefined variable
+set -u
+
+# If "readlink -f" is available, get a resolved absolute path to the
+# tests source dir, otherwise make do with a relative path.
+scriptdir="$(dirname "${BASH_SOURCE[0]}")"
+if readlink -f "." >/dev/null 2>&1; then
+       testsdir=$(readlink -f "$scriptdir/..")
+else
+       testsdir="$scriptdir/.."
+fi
+
+# Allow overriding the source and build directories
+if [ "x${UST_TESTS_SRCDIR:-}" = "x" ]; then
+       UST_TESTS_SRCDIR="$testsdir"
+fi
+export UST_TESTS_SRCDIR
+
+if [ "x${UST_TESTS_BUILDDIR:-}" = "x" ]; then
+       UST_TESTS_BUILDDIR="$testsdir"
+fi
+export UST_TESTS_BUILDDIR