[ruby-core:105586] [Ruby master Bug#18244] Unexpected errors output order
From:
"inversion (Yura Babak)" <noreply@...>
Date:
2021-10-07 05:58:09 UTC
List:
ruby-core #105586
Issue #18244 has been reported by inversion (Yura Babak). ---------------------------------------- Bug #18244: Unexpected errors output order https://bugs.ruby-lang.org/issues/18244 * Author: inversion (Yura Babak) * Status: Open * 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: ``` # $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/ Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>