[5.8] SwiftPM outputs raw diagnostics from SwiftDriver without trailing newlines #5996
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…ng newlines (swiftlang#5987) SwiftPM uses the Swift Driver's `-parseable-output` flag to get a sequence of length-prefixed JSON-encoded messages that it can read. Unfortunately the Swift Driver doesn't JSON-encode its own diagnostics, leading to things like swiftlang#5968. I filed swiftlang/swift-driver#1241 on the Swift Driver to get it to encode its JSON messages, but meanwhile, it turns out that we can fairly easily fix the fallback logic that SwiftPM uses when it emits raw output. It was simply missing a newline. It's safe to always add one, since the logic that parses JSON splits by newlines, so we won't find any terminating newlines. rdar://103608636 (cherry picked from commit 14d05cc)
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@swift-ci please smoke test |
neonichu
approved these changes
Dec 22, 2022
tomerd
approved these changes
Dec 22, 2022
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@swift-ci please smoke test |
abertelrud
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eng/5.8-missing-newline-from-swift-driver-output
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This is the 5.8 nomination of #5987.
rdar://103608636
(cherry picked from commit 14d05cc)