tee: Correctly handle read-only files, avoid unnecessary wrapping #6157
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This removes two layers of Box<NamedWriter<...>>. The indirection appears to be unintentional, and makes it harder to understand and change the code.
sylvestre
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Mar 31, 2024
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Changes since last push: - let path = PathBuf::from(name.clone());
+ let path = PathBuf::from(name);As suggested by clippy stable, clippy nightly, and @sylvestre :D |
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This PR mainly fixes the handling of writing to existing read-only files, and adds
test_readonly().As a drive-by improvement, this PR also removes some weird wrapping that seems to be unintentional leftovers from history. In short, we used to have a NamedWriter that contained a NamedWriter that contained a NamedWriter that contained the actual file. The run-time impact should be negligible, but removing it makes the code a bit easier to read and edit.
The inspiration for this PR was working towards fixing the GNU test
misc/tee.log. Note that we still don't fully pass this test because we don't implement "iopoll-powered early exit for closed pipes".