IRB raises exception when stdout is a pipe #353
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When outputting a (possibly truncated) value, IRB will query the window size. However, if IRB was piped to another process, stdout will no longer be a TTY and will not support the `winsize` method. This fix ensure that stdout is a TTY.
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When piping stdout to another process IRB fails:
For example:
This bug was introduced in Ruby commits: e468d9f49ca34f713c030c623f655a40370e186d and triggered by 8f9b1902f48b413bd161666630c878ad58418c04 and 555ea8334451c5ccd881e68b8b7ddc15745e66e3.
See also: https://bugs.ruby-lang.org/issues/18657