Store Platform reference in Context instance variable

This allows us to remove the platform reset helpers in
tests/conftest.py.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/buildstream/_context.py b/src/buildstream/_context.py
index bb9825f44..3c20834b0 100644
--- a/src/buildstream/_context.py
+++ b/src/buildstream/_context.py
@@ -25,6 +25,7 @@ from . import _yaml
 from ._exceptions import LoadError, LoadErrorReason
 from ._messenger import Messenger
 from ._profile import Topics, PROFILER
+from ._platform import Platform
 from ._artifactcache import ArtifactCache
 from ._sourcecache import SourceCache
 from ._cas import CASCache, CASQuota, CASCacheUsage
@@ -153,6 +154,7 @@ class Context():
         self.messenger = Messenger()
 
         # Private variables
+        self._platform = None
         self._artifactcache = None
         self._sourcecache = None
         self._projects = []
@@ -343,6 +345,13 @@ class Context():
                                      'remote-execution'])
 
     @property
+    def platform(self):
+        if not self._platform:
+            self._platform = Platform.create_instance()
+
+        return self._platform
+
+    @property
     def artifactcache(self):
         if not self._artifactcache:
             self._artifactcache = ArtifactCache(self)