Some quick git diff tips

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A couple of quick tips. As you possibly know you can specify some options to be used for diffs (and other things) per file type. The one I'm interested in is the function name.

For org-mode

The primary way of identifying which part of an org-mode document a change occurs in seems to me to be the heading. So, in your $HOME/.gitconfig put:

[diff "org"]
      xfuncname = "^\\*+.*"

Which should show any lines starting with one or more * characters. And then in $XDG_CONFIG_HOME/git/attributes or $HOME/.config/git/attributes put:

,*.org   diff=org

For lisp and lisp-like langauges

For anything that resembles lisp (so Common Lisp, Emacs Lisp, Hy, scheme, etc.) I would think that the easiest thing to do is just see the closes top-level form. So, in your $HOME/.gitconfig put:

[diff "lisp"]
      xfuncname = "^\\([^ ]+ [^ ]+"

Which should show the opening parenthesis and the first two words. For example:

(defun some-function-name
(defclass my-awesome-class
(define-route this-strange-route

And then put in your $XDG_CONFIG_HOME/git/attributes or $HOME/.config/git/attributes:

,*.lisp  diff=lisp
,*.el    diff=lisp
,*.hy    diff=lisp
,*.scm   diff=lisp

And possibly any other lisp-like language files you can think of.