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completion: audit and guard $GIT_* against unset use

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$GIT_COMPLETION_SHOW_ALL and $GIT_TESTING_ALL_COMMAND_LIST were used
without guarding against them being unset, causing errors in nounset
(set -u) mode.

No other nounset-unsafe $GIT_* usages were found.

While at it, remove a superfluous (duplicate) unset guard from $GIT_DIR
in __git_find_repo_path.

Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ville Skyttä 2021-04-08 10:06:41 +03:00 committed by Junio C Hamano
parent 48bf2fa8ba
commit c5c0548d79
1 changed files with 3 additions and 3 deletions
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6
contrib/completion/git-completion.bash
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@ -77,7 +77,7 @@ __git_find_repo_path ()
test -d "$__git_dir" &&
__git_repo_path="$__git_dir"
elif [ -n "${GIT_DIR-}" ]; then
test -d "${GIT_DIR-}" &&
test -d "$GIT_DIR" &&
__git_repo_path="$GIT_DIR"
elif [ -d .git ]; then
__git_repo_path=.git
@ -427,7 +427,7 @@ __gitcomp_builtin ()
if [ -z "$options" ]; then
local completion_helper
if [ "$GIT_COMPLETION_SHOW_ALL" = "1" ]; then
if [ "${GIT_COMPLETION_SHOW_ALL-}" = "1" ]; then
completion_helper="--git-completion-helper-all"
else
completion_helper="--git-completion-helper"
@ -1910,7 +1910,7 @@ _git_help ()
return
;;
esac
if test -n "$GIT_TESTING_ALL_COMMAND_LIST"
if test -n "${GIT_TESTING_ALL_COMMAND_LIST-}"
then
__gitcomp "$GIT_TESTING_ALL_COMMAND_LIST $(__git --list-cmds=alias,list-guide) gitk"
else