From: "nobu (Nobuyoshi Nakada)" <noreply@ruby-lang.org>
To: ruby-core@ruby-lang.org
Subject: [ruby-core:105591] [Ruby master Bug#18244] Unexpected errors output order
Date: Thu, 07 Oct 2021 15:26:28 +0000 (UTC) [thread overview]
Message-ID: <redmine.journal-94060.20211007152628.25466@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-18244.20211007055809.25466@ruby-lang.org
Issue #18244 has been updated by nobu (Nobuyoshi Nakada).
It sounds hard anyway regardless `stderr` buffering.
Why mixing `stdout` and `stderr`?
https://github.com/ruby/ruby/pull/4944
----------------------------------------
Bug #18244: Unexpected errors output order
https://bugs.ruby-lang.org/issues/18244#change-94060
* Author: inversion (Yura Babak)
* Status: Feedback
* Priority: Normal
* ruby -v: Ruby v3.0.2.107 (2021-07-07) [x64-mingw32]
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
Having this code:
```ruby
# $stderr.sync = false
warn 'warn'
$stderr.puts 'err'
fail
```
When I run it like this `ruby test.rb 2>err.log`, output is ok:
```
warn
err
test.rb:3:in `<main>': unhandled exception
```
But when I uncomment the first line — the output is different:
```
warn
test.rb:3:in `<main>': unhandled exception
err
```
Why buffered output to the `$stderr` redirected to file has the **wrong order**?
If we do not redirect to the file — the order is ok (exception is the last line of the output).
Checked platforms:
`Windows10: Ruby v3.0.2.107 (2021-07-07) [x64-mingw32]`
`Linux: Ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux]`
--
https://bugs.ruby-lang.org/
next prev parent reply other threads:[~2021-10-07 15:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-07 5:58 [ruby-core:105586] [Ruby master Bug#18244] Unexpected errors output order inversion (Yura Babak)
2021-10-07 13:06 ` [ruby-core:105589] " nobu (Nobuyoshi Nakada)
2021-10-07 14:12 ` [ruby-core:105590] " inversion (Yura Babak)
2021-10-07 15:26 ` nobu (Nobuyoshi Nakada) [this message]
2021-10-07 20:00 ` [ruby-core:105596] " inversion (Yura Babak)
2021-10-07 23:58 ` [ruby-core:105601] " Eregon (Benoit Daloze)
2021-10-08 5:57 ` [ruby-core:105604] " inversion (Yura Babak)
2021-10-08 10:48 ` [ruby-core:105606] " Eregon (Benoit Daloze)
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