Function expandEnv

src/mcp/config.ts:38–43

Expand ${VAR} and $VAR references in a string using process.env.

(value: string)

/** Expand ${VAR} and $VAR references in a string using process.env. */
function expandEnv(value: string): string {
	return value.replace(/\$\{([A-Za-z_][A-Za-z0-9_]*)\}|\$([A-Za-z_][A-Za-z0-9_]*)/g, (_, braced, bare) => {
		const name = braced ?? bare
		return process.env[name] ?? ""
	})
}

function isPlainObject(value: unknown): value is Record<string, unknown> {
	return typeof value === "object" && value !== null && !Array.isArray(value)