[Frontend]: Write out .swiftdeps files atomically (SR-8707) #19752
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Modify ReferenceDependenciesEmitter::emit to write to a temporary file and then atomically rename it in place using the atomicallyWritingToFile helper function. This resolves SR-8707, where .swiftdeps files could be truncated if the compiler job was killed in the middle of a write.
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@swift-ci please test and merge |
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Modify ReferenceDependenciesEmitter::emit to write to a temporary file and then atomically rename it in place using the atomicallyWritingToFile helper function.
This resolves SR-8707, where .swiftdeps files could be truncated if the compiler job was killed in the middle of a write.
Resolves SR-8707.