[6.0] swift sdk: print warnings on stderr instead of stdout
#7533
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Tools and scripts may rely on command output to remain parseable, so printing these warnings on `stdout` can break such scripts. We should output these warnings on `stderr` instead. As these warnings are emitted before any logging is available, we're using `fputs` for output on `stderr`
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@swift-ci test |
bnbarham
approved these changes
May 8, 2024
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Cherry-pick of #7532.
Explanation: Tools and scripts may rely on command output to remain parseable, so printing these warnings on
stdoutcan break such workflows. We should output these warnings onstderrinstead.As these warnings are emitted before any logging is available, we're using
fputsfor output onstderrScope: Isolated to
swift sdkcommand and subcommands.Risk: Low, the actual change is only 4 lines touching
printandimport, code coverage for those is present.Testing: End-to-end test cases present in
Tests/CommandsTests/SDKCommandTests.swiftIssue: N/A
Reviewer: @bnbarham