Add "common" and "load" library modules.

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/load.sh b/lib/load.sh
new file mode 100644
index 0000000..2a71036
--- /dev/null
+++ b/lib/load.sh
@@ -0,0 +1,48 @@
+# opkhelper
+# lib/load
+# Functions for loading library modules.
+#
+# Copyright (C) 2012 Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+[ -n "${_OH_LOAD_SM}" ] && return 0
+_OH_LOAD_SM='true'
+
+# The "common" module is used by this and all other modules.
+# We have to manually load the "common" module so we can use it in oh_use.
+. '@@LIBOPKHELPER@@/common.sm'
+
+oh_use()
+{
+	_oh_local _ohu_module
+
+	if [ ${#} -eq 1 ]; then
+		_ohu_module="${1}"
+	else
+		_oh_return 125
+		return ${?}
+	fi
+
+	_ohu_module='@@LIBOPKHELPER@@'"/${_ohu_module}.sm"
+	if [ -r "${_ohu_module}" ]; then
+		. "${_ohu_module}"
+	else
+		_oh_return 1
+		return ${?}
+	fi
+
+	_oh_return 0
+	return ${?}
+}