uutils / uutils/coreutils

tail: -f option doesn't work with stdin

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  • #7619 by @alirezafarghadani999 — closed without merging
U - tail
Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Difference between GNU and Rust...

Testcase.

$ echo foo > f
$ tail -f <f

GNU output (tail does NOT terminate).

foo

Rust output (tail terminates immediately).

foo
$

test_stdin_redirect_file used to test this but was dissabled here.

I'll try to fix.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the tail implementation and the disabled test_stdin_redirect_file test mentioned in the issue. Reproduce the echo-and-stdin-redirection testcase, then restore or update coverage so tail -f continues waiting when reading stdin from a file. Done means the command prints foo without terminating immediately.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
35/100

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