FEATURE REQUEST: Env override GIT_GLOBAL_CONFIG

[Moe <moe@signalbeam.net>]

Hello list,

I'm looking for a way to read a custom config file in
addition to .git/config.

An env var along the lines of GIT_GLOBAL_CONFIG (and perhaps
GIT_SYSTEM_CONFIG) to override the default locations of
~/.gitconfig or $prefix/etc/gitconfig would be most
welcome here.

$GIT_CONFIG doesn't work for this purpose because when set
git will *only* read the referenced file and ignore the
repository settings.

$GIT_CONFIG_LOCAL wouldn't do either and has been
removed from git anyways.


Use-Case:
Multiple users sharing one unix account. Trying to inject the respective
git identity and other preferences without overwriting
the actual .gitconfig-file - because that doesn't work when multiple
users are logged in concurrently to the same unix-account.


Kind regards,
Moe