Bug #19578: abort() shows stack trace when run within rescue clause

• Status: Rejected
• Assignee: -
• Target version: -
• Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN

[Dan0042 (Daniel DeLorme)]

I sometimes use the pattern print(str) rescue abort in order to exit without stack trace when the output of a ruby program is interrupted by SIGPIPE, ex: ./printstuff.rb | head

It seems that since ruby 2.7 this results in printing the stack trace. This is not the case when using abort by itself.

Is this intended? I would expect abort to behave much like exit(1), as it always has.

[jeremyevans0 (Jeremy Evans)]

• Status changed from Open to Rejected

This was a deliberate change, see #16424.

[Dan0042 (Daniel DeLorme)]

Thank you, I searched but wasn't able to find it.

But in that case I think the documentation should be updated. This:

Terminate execution immediately, effectively by calling Kernel.exit(false). If msg is given, it is written to STDERR prior to terminating.

reads to me like nothing is written to STDERR if msg is not given. Perhaps update to something like:

Terminate execution immediately, effectively by calling Kernel.exit(false). If msg is given, it is written to STDERR prior to terminating. Otherwise, if an exception was raised, print its message and backtrace.

[jeremyevans0 (Jeremy Evans)]

Dan0042 (Daniel DeLorme) wrote in #note-2:

But in that case I think the documentation should be updated.

I agree. Can you please submit a pull request for it?

[nobu (Nobuyoshi Nakada)]

Note that broken pipe on STDOUT error message will not be shown since ruby 3.0. #14413

[Dan0042 (Daniel DeLorme)]

jeremyevans0 (Jeremy Evans) wrote in #note-3:

I agree. Can you please submit a pull request for it?

Will do.

nobu (Nobuyoshi Nakada) wrote in #note-4:

Note that broken pipe on STDOUT error message will be shown since ruby 3.0. #14413

That's a great improvement! I can't believe I missed it.

[nobu (Nobuyoshi Nakada)]

Of course, I missed the word "not", sorry.

[Dan0042 (Daniel DeLorme)]

jeremyevans0 (Jeremy Evans) wrote in #note-3:

I agree. Can you please submit a pull request for it?

Done: https://github.com/ruby/ruby/pull/7664