No warning when only a Windows line break is piped in

[mathiasrw]

Today

RexReplace warns when data is piped in together with files and no flag tells what to do with it (#719).

Empty piped data and a single \n give no warning. A single \r\n does:

> printf '\r\n' | rexreplace foo bar my.file
 🟡 Data is piped in, but no flag tells what to do with it. It is not used.

my.file

On Windows a line break is \r\n, so an empty echo piped in gives the warning there.

Change

A single \r\n is treated the same as a single \n: no warning.

Good to know

• This is the only part of Warn when piped data is not used #727 that was not already in main after Fix files from absolute path to close #726 and add RR_VOID_PIPE env var. #730. With this merged Warn when piped data is not used #727 can be closed.
• Tests: \r\n is added to the cases in test/js/fix/719.test.js, and test/cli/run.sh now checks empty data, \n and \r\n from the CLI.

Reference

• Warn when piped data is not used #719
• Warn when piped data is not used #727
• Fix files from absolute path to close #726 and add RR_VOID_PIPE env var. #730

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