macOS unzip then rsync to delete stale artifacts #85075
Merged
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On macOS only, when unzipping, first unzip to a temp directory, then
rsyncwith the--deleteflag so stale files that aren't in the target directory are deleted, and files continue to only be updated as needed. This adds an extra I/O copy step to unzipping, but will make sure deleted archive files are actually deleted. This applies for downloading cached artifacts as well as unzipping prebuilt macOS and iOS app bundles.Confirmed that the stale xcframework architecture triple directories are removed on this PR (more details in #85062)
Fixes #85062
There was a previous attempt to do this at #74818 but that only seems to delete
flutter/bin/cache/artifacts/engine/ios/artifacts(which doesn't exist), notflutter/bin/cache/artifacts/engine/ios/*