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-rw-r--r--buildstream/_cachekey.py7
1 files changed, 4 insertions, 3 deletions
diff --git a/buildstream/_cachekey.py b/buildstream/_cachekey.py
index fe407e96f..953263aa9 100644
--- a/buildstream/_cachekey.py
+++ b/buildstream/_cachekey.py
@@ -19,7 +19,8 @@
import hashlib
-import pickle
+
+import ujson
from . import _yaml
@@ -38,5 +39,5 @@ from . import _yaml
#
def generate_key(value):
ordered = _yaml.node_sanitize(value)
- string = pickle.dumps(ordered)
- return hashlib.sha256(string).hexdigest()
+ ustring = ujson.dumps(ordered, sort_keys=True, escape_forward_slashes=False).encode('utf-8')
+ return hashlib.sha256(ustring).hexdigest()