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refactor: improve loop and vars manipulation

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Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>
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Alessio Artoni 2025-05-15 16:48:26 +02:00 • committed by GitHub
parent 95d41b1e96
commit 3d87bd855e
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1 changed files with 15 additions and 12 deletions
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27
target/scripts/startup/variables-stack.sh
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@ -249,24 +249,27 @@ function __environment_variables_export() {
# This function sets any environment variable with a value from a referenced file
# when an equivalent ENV with a `__FILE` suffix exists with a valid file path as the value.
function __environment_variables_from_files() {
for ENV_WITH_FILE_REF in $(env | grep -Po '^.+?__FILE'); do
while read -r ENV_WITH_FILE_REF; do
# Store the ENV name without the `__FILE` suffix:
local TARGET_ENV="${ENV_WITH_FILE_REF/__FILE/}"
local TARGET_ENV_NAME="${ENV_WITH_FILE_REF/__FILE/}"
local -n TARGET_ENV="${ENV_WITH_FILE_REF/__FILE/}"
# Store the value of the `__FILE` ENV:
local FILE_PATH="${!ENV_WITH_FILE_REF}"
# Skip sourcing form `__FILE` if ENV is already set:
if [[ -n "${!TARGET_ENV}" ]]; then
_log 'warn' "ENV value will not be sourced from '${ENV_WITH_FILE_REF}' since '${TARGET_ENV}' is already set"
# Skip sourcing from `__FILE` if ENV is already set:
if [[ -v TARGET_ENV ]]; then
_log 'warn' "Ignoring '${TARGET_ENV_NAME}' since '${ENV_WITH_FILE_REF}' is also set"
continue
fi
# Otherwise retrieve the value from file and set the ENV or fail if invalid reference:
if [[ -f "${FILE_PATH}" ]]; then
_log 'info' "Getting secret ${TARGET_ENV} from ${FILE_PATH}"
printf -v "${TARGET_ENV}" '%s' "$(< "${FILE_PATH}")"
else
_log 'error' "File ${FILE_PATH} does not exist, defined in ${ENV_WITH_FILE_REF}"
# Otherwise, retrieve the value from a file and set
# the ENV, or fail if the reference is invalid:
if [[ ! -f ${FILE_PATH} ]]; then
_log 'warn' "File defined for secret '${TARGET_ENV_NAME}' with path '${FILE_PATH}' does not exist"
continue
fi
done
_log 'info' "Getting secret '${TARGET_ENV_NAME}' from '${FILE_PATH}'"
TARGET_ENV="$(< "${FILE_PATH}")"
done < <(env | grep -Po '^.+?__FILE')
}