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 <[email protected]> Signed-off-by: Junio C Hamano <[email protected]>
angeladt · Feb 25, 2010 · 7d750f0 · 7d750f0
1 parent 94c8cca
commit 7d750f0
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/git-sh-setup.sh b/git-sh-setup.sh
@@ -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"