I was looking at some GitHub actions and noticed a literal, pipe |
, with a dash, -
, and had no idea what it meant. After a bit of searching, I found YAML Multiline which showed the effects of the feature when making multi-line strings. I.e.run: |-
vsrun: |
The dash is the block chomping indicator which lets yaml know if it should keep the newline at the end of the multi-line string. If you chomp it strips the new line. If you just use the pipe, it’ll contain the last new line.
Now does it really matter in GitHub actions? I don’t really think so. Most shells will strip the last newline character of a command.
So there you go. Pipe dash strips the last end line character of the multiline lateral command.