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git-prompt.sh: localize option in __git_ps1_show_upstream

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The variable 'option' is used in __git_ps1_show_upstream()
without being localized.

This clobbers the variable the user may be using for other
purposes, which is bad.  Luckily, $option is not used to carry
information around in the script as a global variable.  The use
of it in this script has very limited scope (namely, only inside
this function), so just declare that it is "local".

Signed-off-by: Sibo Dong <sibo.dong@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Sibo Dong 2020-10-31 22:09:46 +00:00 committed by Junio C Hamano
parent 898f80736c
commit 9542d56379
1 changed files with 1 additions and 0 deletions
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contrib/completion/git-prompt.sh
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@ -137,6 +137,7 @@ __git_ps1_show_upstream ()
done <<< "$output"
# parse configuration values
local option
for option in ${GIT_PS1_SHOWUPSTREAM}; do
case "$option" in
git|svn) upstream="$option" ;;