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bin/brew: don't set blank HOMEBREW_* variables. #2635

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May 14, 2017
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bin/brew: don't set blank HOMEBREW_* variables. #2635

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4 changes: 4 additions & 0 deletions bin/brew
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,11 @@ HOMEBREW_LIBRARY="$HOMEBREW_REPOSITORY/Library"
for VAR in AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY BINTRAY_USER BINTRAY_KEY \
BROWSER EDITOR GIT PATH VISUAL
do
# Skip if variable value is empty.
[[ -z "${!VAR}" ]] && continue

VAR_NEW="HOMEBREW_${VAR}"
# Skip if existing HOMEBREW_* variable is set.
[[ -n "${!VAR_NEW}" ]] && continue
export "$VAR_NEW"="${!VAR}"
done
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