envfile/edition-deno/index.ts

Parse and stringify the environment configuration files and format, also known as .env files and dotenv files

/** We don't normalize anything, so it is just strings and strings. */
export type Data = Record<string, string>

/** We typecast the value as a string so that it is compatible with envfiles.  */
export type Input = Record<string, any>

// perhaps in the future we can use @bevry/json's toJSON and parseJSON and JSON.stringify to support more advanced types

/** Parse an envfile string. */
export function parse(src: string): Data {
	const result: Data = {}
	const lines = src.toString().split('\n')
	for (const line of lines) {
		const match = line.match(/^([^=:#]+?)[=:](.*)/)
		if (match) {
			const key = match[1].trim()
			const value = match[2].trim().replace(/['"]+/g, '')
			result[key] = value
		}
	}
	return result
}

/** Turn an object into an envfile string. */
export function stringify(obj: Input): string {
	let result = ''
	for (const [key, value] of Object.entries(obj)) {
		if (key) {
			const line = `${key}=${String(value)}`
			result += line + '\n'
		}
	}
	return result
}