How do you pass user input to PECL in a Homebrew install?

StackOverflow https://stackoverflow.com/questions/6338369

  •  27-10-2019
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Question

I'm writing a custom homebrew formula for installing PHP. It works great except for when I need to install APC (and some others) via PECL. The PECL installation pauses to ask a few questions and causes the brew install to fail or hang due to the lack of user input.

Is there a way to simply accept the defaults in PECL? Or can Homebrew somehow send the Enter key to the system?

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Solution

Found a user input hack here that worked for me:

system "printf \"no\nno\nno\nno\nyes\nno\n\" | #{prefix}/bin/pecl install -afl apc"
system "printf \"autodetect\n\" | #{prefix}/bin/pecl install -afl libevent-beta"
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