UniversalPackages: Add incrementality to avoid re-downloading packages#639
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UniversalPackages: Add incrementality to avoid re-downloading packages#639
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mruxmohan4
approved these changes
Aug 15, 2025
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This change avoids downloading a universal package if the destination path already exists.
However, to combat scenarios where the package didn't download successfully (eg. a cancelled/killed restore), the path used to download the package is mapped to a temporary location then moved atomically when successful.
Here is an example showing the difference, although this example is using an extremely trivial package. A much larger package (which is where universal package shine to begin with) would produce a much more significant difference in absolute numbers.
Before:
Build 1:
Build 2:
After:
Build 1:
Build 2:
