batches: skip empty log output #923
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| @@ -119,6 +119,14 @@ type prefixedWriter struct { | |||
| func (w *prefixedWriter) Write(p []byte) (int, error) { | |||
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I just checked the source of p and I think we will only ever stream 1 line at a time, either with the newline at the end, or not if the stream has ended and there is no newline (for example echo -n).
So that makes me think that we shouldn't even split the p in here at all - and would as a side-effect get that for free, while retaining actual empty log lines. How does that feel for you?
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Oh! Yeah true - that's better. I can just remove the loop then. It makes sense to me.
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Should just re-validate that - but from reading code it seems like our scanner on the other end of this stream would write in line-chunks :)
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Yeah, I just tested it, and it works. For both SSBC and local executions - the log output is consistent now.
Pushed a refactor.
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Co-authored-by: Erik Seliger <erikseliger@me.com>
Co-authored-by: Erik Seliger <erikseliger@me.com>
Test plan
I added a unit test for this.