1 files changed, 66 insertions, 0 deletions
diff --git a/src/buildstream/_loader/loadcontext.py b/src/buildstream/_loader/loadcontext.py
new file mode 100644
index 000000000..161be913b
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+++ b/src/buildstream/_loader/loadcontext.py
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+#
+#  Copyright (C) 2020 Codethink Limited
+#
+#  This program 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; either
+#  version 2 of the License, or (at your option) any later version.
+#
+#  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, see <http://www.gnu.org/licenses/>.
+#
+#  Authors:
+#        Tristan Van Berkom <tristan.vanberkom@codethink.co.uk>
+
+
+# LoaderContext()
+#
+# An object to keep track of overall context during the load process.
+#
+# Args:
+#    context (Context): The invocation context
+#
+class LoadContext:
+    def __init__(self, context):
+
+        # Keep track of global context required throughout the recursive load
+        self.context = context
+        self.rewritable = False
+        self.fetch_subprojects = None
+        self.task = None
+
+    # set_rewritable()
+    #
+    # Sets whether the projects are to be loaded in a rewritable fashion,
+    # this is used for tracking and is slightly more expensive in load time.
+    #
+    # Args:
+    #   task (Task): The task to report progress on
+    #
+    def set_rewritable(self, rewritable):
+        self.rewritable = rewritable
+
+    # set_task()
+    #
+    # Sets the task for progress reporting.
+    #
+    # Args:
+    #   task (Task): The task to report progress on
+    #
+    def set_task(self, task):
+        self.task = task
+
+    # set_fetch_subprojects()
+    #
+    # Sets the task for progress reporting.
+    #
+    # Args:
+    #   task (callable): The callable for loading subprojects
+    #
+    def set_fetch_subprojects(self, fetch_subprojects):
+        self.fetch_subprojects = fetch_subprojects