Windows batch file command formatting with usebackq

Question

I'm trying to assign the results of a git command to a variable in a Windows batch file.

The line in question looks like:

FOR /F "USEBACKQ tokens=*" %%i IN (`git rev-parse --short=12 trunk`) DO set IMAGE_NAME=buildroot-buildenv-%%i

When I run this I get fatal: Needed a single revision, I assume because there is a command formatting issue with the --short=12 part of the command. (If I simply run git rev-parse trunk as the command, everything works fine)

How can I add the --short=12 option to the git command and get the proper result?

Answer 1

As noted in the comment by Magoo

You need to escape the = in the git command with a caret (^=12 not =12)

Solved it for me