Text not printed with rprint without newline

[jiayihu]

I have a strange bug where rprint!(".") doesn't print anything until I print a newline \n later. For instance rprint!(".\n"); works, rprint!("."); rprint!("\n"); works too, and of course rprintln!("."); works. Characters are not missed, it's just as if some buffer is flushed only when newline is met.

This doesn't happen with cargo-embed so I created the issue here

[japaric]

Thanks for the report! Applications that print to the terminal will usually only flush after a newline. When --defmt is not used we should flush after each write to the stdout. So a flush after

probe-run/src/main.rs

Line 430 in df90d57

stdout.write_all(&read_buf[..num_bytes_read])?;

should fix this issue.

[japaric]

@jiayihu could you try the latest (git) version of probe-run and let us know if this was fixed?

Re-opening until we heard back from the author

[jiayihu]

Yeah works fine now and I think I'll stick with the git version, logs are prettier now 😄

[japaric]

Thanks for confirming!