Until fail

Retry a command until it fails.

Debugging brittle specs is annoying and time consuming work. Let's automate finding those brittle specs by retrying them until they fail.

Accompanying blog post.

Usage

$ until-fail true
# Will repeat forever

$ until-fail false
# Fails at the first iteration and break out of the retry loop

$ until-fail ruby -e "(rand(0..1) == 1) ? (puts 'failed'; exit(1)) : (puts 'success')"
# Fails randomly and breaks out of the retry loop when it fails

Installation

• Open a directory that's in your local $PATH. (See the list with echo $PATH in your terminal.)
• Download the until-fail file from the gist. (Click the "Raw" button on the until-fail file.
• Create a until-fail file in the open directory and paste in the until-fail file contents.
• Make the file executable with chmod +x until-fail.
• Now call the excutable with a command.