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shell setup: clear_local_git_env() function 

Introduce an auxiliary function to clear all repo-local environment
variables. This should be invoked by any shell script that switches
repository during execution, to ensure that the environment is clean
and that things such as the git dir and worktree are set up correctly.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Giuseppe Bilotta 2010-02-25 00:34:16 +01:00 committed by Junio C Hamano
parent 94c8ccaaba
commit 7d750f0ea5
1 changed files with 7 additions and 0 deletions
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7
git-sh-setup.sh
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@ -159,6 +159,13 @@ get_author_ident_from_commit () {
LANG=C LC_ALL=C sed -ne "$pick_author_script"
}
# Clear repo-local GIT_* environment variables. Useful when switching to
# another repository (e.g. when entering a submodule). See also the env
# list in git_connect()
clear_local_git_env() {
unset $(git rev-parse --local-env-vars)
}
# Make sure we are in a valid repository of a vintage we understand,
# if we require to be in a git repository.
if test -z "$NONGIT_OK"