--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2019 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+function get_env_value ()
+{
+ local env_file=$1
+ local key=$2
+ local result
+ local ret
+
+ result=$(grep "$key" < "$env_file")
+ ret=$?
+ if [ $ret -eq 1 ]; then
+ echo "invalid_value_extraction"
+ return 1
+ else
+ # Strip the key using bash substring removal.
+ # This remove all leading chars until the actual value.
+ result=${result#* = }
+
+ # Remove the trailing ';'
+ result=${result:0:-1}
+
+ # Remove enclosing '"' if present
+ if [ "${result:0:1}" == '"' ]; then
+ result=${result:1:-1}
+ fi
+
+ echo "$result"
+ return 0
+ fi
+}
+
+function iso8601_to_lttng_dir_datetime ()
+{
+ local result=$1
+
+ result=${result/T/-}
+
+ # Remove trailing timezone information including the '-'.
+ result=${result:0:-5}
+
+ echo "$result"
+ return 0
+}