hxbrief: Support showing partial lines (stdout/stderr without a newline)
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- Dominant language
- Haskell
- Stars
- 0
- Forks
- 0
- PR merge metrics
- No merged PRs in 30d
Description
hxbrief currently is fully geared towards line-wise buffering. But what about more fine-grained output? Currently, it is not displayed at all by hxbrief.
Challenges:
- The haskell APIs for fetching partial input don't seem to make this easy. I guess one could use https://hackage.haskell.org/package/bytestring-0.10.10.0/docs/Data-ByteString.html#v:hGetNonBlocking together with https://hackage.haskell.org/package/text-2.0/docs/Data-Text-Encoding.html#v:streamDecodeUtf8. The fact that one might get the first byte of a utf8 four-byte-codepoint makes this a bit annoying. Lots of additional state-handling.
- There is the possibility of "incomplete lines" on both stdout and stderr simulatenously. Both may get "updates".
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with hxbrief's current line-wise buffering and the Haskell partial-input APIs linked in the issue. Trace how stdout and stderr are read, including simultaneous incomplete lines and split UTF-8 code points. Done means partial output from both streams is displayed correctly without newlines.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- haskell
- Domain
- cli
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100