Re: [PATCH/RFC 2/2] Provide a build time default-editor setting

Johannes Sixt [off-list ref] writes:

Yeah, whatever, I didn't take the time to think it through. But this may be an 
opportunity to give some life back to the zombie that git-var currently is, 
that is, to make it the plumbing that does value discovery for variables like 
GIT_AUTHOR_INDENT, GIT_COMMITTER_IDENT, GIT_EDITOR, and perhaps also 
GIT_PAGER.

Hmm, wouldn't it make even more sense to "run" them for the calling
Porcelain script?

A shell script Porcelain can already ". git-sh-setup" and say

	git_editor this-file

when it needs to spawn the editor of choice.  Your new plumbing support
could make the definition of git_editor in git-sh-setup.sh into something
like:

    git_editor() {
    	git var --run GIT_EDITOR "$@"
    }
    git_pager() {
    	git var --run GIT_PAGER "$@"
    }