Issue #18657 has been updated by hsbt (Hiroshi SHIBATA). Status changed from Open to Closed This patch has been merged at https://github.com/ruby/irb/pull/353 ---------------------------------------- Bug #18657: IRB raises exception when stdout is a pipe https://bugs.ruby-lang.org/issues/18657#change-100295 * Author: pjones (Peter Jones) * Status: Closed * Priority: Normal * ruby -v: ruby 3.2.0dev (2022-03-24T16:14:55Z master 33b13bd9f1) [x86_64-linux] * Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN ---------------------------------------- When piping stdout to another process IRB fails: ``` lib/ruby/3.0.0/irb/input-method.rb:42:in `winsize': Inappropriate ioctl for device (Errno::ENOTTY) ``` For example: ``` echo n=1 | irb | cat ``` This bug was introduced in e468d9f49ca34f713c030c623f655a40370e186d and triggered by 8f9b1902f48b413bd161666630c878ad58418c04 and 555ea8334451c5ccd881e68b8b7ddc15745e66e3. The attached patch fixes the bug and includes a test to demonstrate the issue. ---Files-------------------------------- ruby-irb.patch (1.26 KB) -- https://bugs.ruby-lang.org/