Derrick Stolee 5f031fe4f1 run-command: extract sanitize_repo_env helper ...

The current prepare_other_repo_env() does two distinct things:

 1. Strip certain known environment variables that should be set by a
    child process based on a different repository.

 2. Set the GIT_DIR variable to avoid repository discovery.

The second item is valuable for child processes that operate on
submodules, where the repo discovery could be mistaken for the parent
repository.

In the next change, we will see an important case where only the first
item is required as the GIT_DIR discovery should happen naturally from
the '-C' parameter in the child process.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2026-03-03 10:19:59 -08:00

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