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Preserve select environment variables with su.

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This commit is contained in:
Brad Warren 2017-07-24 17:20:32 -07:00
parent 87846631ec
commit 4a3ef4120e
2 changed files with 14 additions and 4 deletions
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9
letsencrypt-auto-source/letsencrypt-auto
View file

@ -133,8 +133,8 @@ fi
PRESERVE_VARS="LE_AUTO_DIR_TEMPLATE LE_AUTO_JSON_URL LE_AUTO_PUBLIC_KEY "
PRESERVE_VARS="$PRESERVE_VARS LE_PYTHON OLD_VENV_PATH VENV_PATH"
# Because the parameters in `su -c` has to be a string,
# we need to properly escape it.
# We need to preserve certain environment variables and because the parameters
# in `su -c` has to be a string, we need to properly escape it.
su_sudo() {
args=""
# This `while` loop iterates over all parameters given to this function.
@ -151,6 +151,11 @@ su_sudo() {
args="$args'$(printf "%s" "$1" | sed -e "s/'/'\"'\"'/g")' "
shift
done
for var in $PRESERVE_VARS; do
export $var
done
su root -c "$args"
}

9
letsencrypt-auto-source/letsencrypt-auto.template
View file

@ -133,8 +133,8 @@ fi
PRESERVE_VARS="LE_AUTO_DIR_TEMPLATE LE_AUTO_JSON_URL LE_AUTO_PUBLIC_KEY "
PRESERVE_VARS="$PRESERVE_VARS LE_PYTHON OLD_VENV_PATH VENV_PATH"
# Because the parameters in `su -c` has to be a string,
# we need to properly escape it.
# We need to preserve certain environment variables and because the parameters
# in `su -c` has to be a string, we need to properly escape it.
su_sudo() {
args=""
# This `while` loop iterates over all parameters given to this function.
@ -151,6 +151,11 @@ su_sudo() {
args="$args'$(printf "%s" "$1" | sed -e "s/'/'\"'\"'/g")' "
shift
done
for var in $PRESERVE_VARS; do
export $var
done
su root -c "$args"
}