line-buffered output

[tolot27]

Currently, taxonkit uses xopen fully buffered output writers. Would it be possible to use at least a line-buffered writer? Grep does this by an additional parameter --line-buffered.
The rationale behind this request is the piping of BLASTs tabular output. BLAST is line-buffered and I can process hits as they "appear" but not with taxonkit. Long-running BLAST jobs piped to taxonkit will produce the output only if a lot of hits "appear", regardless of the Linux tools unbuffer or stdbuf -oL.

[shenwei356]

oh, it's easy, will do it tonight.

[shenwei356]

try this: v0.2.5-dev with flag --line-buffered to disable output buffering.