env-sentinel/dist/parsers/parse-env-content.js

Zero-dependency tool that auto-validates .env files against schema.env, with optional fallback and secure warnings.

const REFERENCE_REGEX = /(?<!\\)(\$\{(?<key1>[A-Za-z_][A-Za-z0-9_]*)\}|\{\$(?<key2>[A-Za-z_][A-Za-z0-9_]*)\}|\$(?<key3>[A-Za-z_][A-Za-z0-9_]*))/;
export function parseEnvContent(rawEnvContent) {
    const env = {};
    const lines = rawEnvContent.split(/\r?\n/).filter((line) => line.trim() && !line.trim().startsWith('#'));
    const linesWithReferences = [];
    for (const line of lines) {
        const [key, ...rest] = line.split('=');
        const trimmedKey = key.trim();
        if (!trimmedKey)
            continue;
        let value = rest.join('=').trim();
        if ((value.startsWith('"') && value.endsWith('"')) || (value.startsWith("'") && value.endsWith("'"))) {
            value = value.slice(1, -1);
        }
        if (REFERENCE_REGEX.test(value)) {
            linesWithReferences.push({ key: trimmedKey, value });
            continue;
        }
        env[trimmedKey] = value;
    }
    for (const line of linesWithReferences) {
        const { key, value } = line;
        env[key] = value.replace(REFERENCE_REGEX, (match) => {
            const referencedKey = getReferencedKey(match);
            const referencedValue = env[referencedKey];
            if (referencedValue === undefined) {
                throw new Error(`Referenced key "${referencedKey}" not found in the env.`);
            }
            return referencedValue;
        });
    }
    return env;
}
function getReferencedKey(key) {
    const { groups } = REFERENCE_REGEX.exec(key);
    return groups.key1 || groups.key2 || groups.key3 || key;
}