How do I find out what options git-diff uses when it invokes less?

I want to reproduce the pager behavior that git-diff uses but I don't know how. Is there a way I could find out what options it uses with less?

I already tried this: strings "$(dirname $(which git-diff))/*" | grep 'less '

And this (while less wa开发者_如何转开发s running): ps aux | grep less <= Didn't show me which options it was using.

I'm on Darwin.

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See the git-config man page, specifically the description of core.pager. Also, you could inspect the environment of the pager process

$ tr '\0' '\n' < /proc/5568/environ | grep LESS
LESS=FRSX

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A useful technique for doing this sort of thing is to set the GIT_EXTERNAL_DIFF environment variable to a shell script that does nothing but echo its arguments. Then run git diff and look at the output.

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Add this to your .bashrc:

export LESS="$LESS -S" # add more options to `less`

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See http://www.pixelbeat.org/scripts/idiff for portable ways to control less