@layerfig/config/dist/sources/env/index.js

Layer and runtime-validate type-safe configs for JavaScript apps.

import { Source } from "../../source-BvmiqUNz.js";
import { set } from "../../set-LPILcL1N.js";
import { z } from "zod/v4";

//#region src/sources/env-var.ts
const EnvironmentVariableSourceOptions = z.object({
	prefix: z.string().optional().default("APP"),
	prefixSeparator: z.string().optional().default("_"),
	separator: z.string().optional().default("__")
});
const PartialEnvironmentVariableSourceOptions = EnvironmentVariableSourceOptions.partial();
var EnvironmentVariableSource = class extends Source {
	#options;
	#prefixWithSeparator;
	constructor(options = {}) {
		super();
		this.#options = EnvironmentVariableSourceOptions.parse(options);
		this.#prefixWithSeparator = `${this.#options.prefix}${this.#options.prefixSeparator}`;
	}
	loadSource({ runtimeEnv, slotPrefix }) {
		const envKeys = Object.keys(runtimeEnv).filter((key) => key.startsWith(this.#prefixWithSeparator));
		const tempObject = {};
		for (const envKey of envKeys) {
			const envVarValue = runtimeEnv[envKey];
			if (envVarValue === void 0) continue;
			const keyWithoutPrefix = envKey.replace(this.#prefixWithSeparator, "");
			const keyParts = keyWithoutPrefix.split(this.#options.separator).join(".");
			set(tempObject, keyParts, this.maybeReplaceSlotFromValue({
				value: envVarValue,
				runtimeEnv,
				slotPrefix
			}));
		}
		return tempObject;
	}
};

//#endregion
export { EnvironmentVariableSource };
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