GITFNS: prc pulls in too many files

[masinter]

in https://github.com/Interlisp/loops/pull/14#issuecomment-1232350530 @nbriggs wrote:

I'm trying to get GITFNS to actually do a comparison for me... I'm going to have to read the source to figure out how to compare two branches that aren't in Medley, and where I don't have a directory outside the repository.

re gitfns: I spent several hours going through the source and tracing git-command trying to understand where things went wrong. I was trying to see if I could do something with git -difftool -x with a shell script that just echos the names of the tmp directories it creates.

so far it's sunk time, but it's interesting.

[masinter]

git diff --merge-base --name-only master

gives you a list trimmed to the files you should diff with Lisp I don't know what the origin and local parts of the branch name mean. just trying to understand by restructuring -- check out git-difftool branch