56 lines
1.4 KiB
Bash
56 lines
1.4 KiB
Bash
#!/usr/bin/env bash
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trim_env_whitespace() {
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local value="$1"
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value="${value#"${value%%[![:space:]]*}"}"
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value="${value%"${value##*[![:space:]]}"}"
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printf '%s' "${value}"
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}
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load_env_file() {
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local env_file="$1"
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local raw_line=""
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local normalized=""
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local key=""
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local value=""
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local trimmed_value=""
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local quote_char=""
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[[ -f "${env_file}" ]] || return 1
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while IFS= read -r raw_line || [[ -n "${raw_line}" ]]; do
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raw_line="${raw_line%$'\r'}"
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normalized="$(trim_env_whitespace "${raw_line}")"
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if [[ -z "${normalized}" || "${normalized:0:1}" == "#" ]]; then
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continue
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fi
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if [[ "${normalized}" == export\ * ]]; then
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normalized="${normalized#export }"
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fi
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if [[ "${normalized}" != *=* ]]; then
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continue
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fi
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key="$(trim_env_whitespace "${normalized%%=*}")"
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if [[ -z "${key}" ]]; then
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continue
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fi
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value="${normalized#*=}"
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trimmed_value="$(trim_env_whitespace "${value}")"
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if [[ ${#trimmed_value} -ge 2 ]]; then
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quote_char="${trimmed_value:0:1}"
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if [[ ( "${quote_char}" == "'" || "${quote_char}" == '"' ) && "${trimmed_value: -1}" == "${quote_char}" ]]; then
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value="${trimmed_value:1:${#trimmed_value}-2}"
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else
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value="${trimmed_value}"
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fi
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else
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value="${trimmed_value}"
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fi
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printf -v "${key}" '%s' "${value}"
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export "${key}"
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done < "${env_file}"
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}
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