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build.run: make sure BuildProducts._root is not easily accessible.

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This commit is contained in:
whitequark 2019-07-06 18:44:25 +00:00
parent 2829d04033
commit b6b9f0fc21
1 changed files with 4 additions and 2 deletions
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6
nmigen/build/run.py
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@ -56,11 +56,13 @@ class BuildPlan:
class BuildProducts: class BuildProducts:
def __init__(self, root): def __init__(self, root):
self._root = root # We provide no guarantees that files will be available on the local filesystem (i.e. in
# any way other than through `products.get()`), so downstream code must never rely on this.
self.__root = root
def get(self, filename, mode="b"): def get(self, filename, mode="b"):
assert mode in "bt" assert mode in "bt"
with open(os.path.join(self._root, filename), "r" + mode) as f: with open(os.path.join(self.__root, filename), "r" + mode) as f:
return f.read() return f.read()
@contextmanager @contextmanager