* first action! (#1)

node_modules/got/source/merge.js

@@ -0,0 +1,73 @@
+'use strict';
+const {URL} = require('url');
+const is = require('@sindresorhus/is');
+const knownHookEvents = require('./known-hook-events');
+
+const merge = (target, ...sources) => {
+	for (const source of sources) {
+		for (const [key, sourceValue] of Object.entries(source)) {
+			if (is.undefined(sourceValue)) {
+				continue;
+			}
+
+			const targetValue = target[key];
+			if (is.urlInstance(targetValue) && (is.urlInstance(sourceValue) || is.string(sourceValue))) {
+				target[key] = new URL(sourceValue, targetValue);
+			} else if (is.plainObject(sourceValue)) {
+				if (is.plainObject(targetValue)) {
+					target[key] = merge({}, targetValue, sourceValue);
+				} else {
+					target[key] = merge({}, sourceValue);
+				}
+			} else if (is.array(sourceValue)) {
+				target[key] = merge([], sourceValue);
+			} else {
+				target[key] = sourceValue;
+			}
+		}
+	}
+
+	return target;
+};
+
+const mergeOptions = (...sources) => {
+	sources = sources.map(source => source || {});
+	const merged = merge({}, ...sources);
+
+	const hooks = {};
+	for (const hook of knownHookEvents) {
+		hooks[hook] = [];
+	}
+
+	for (const source of sources) {
+		if (source.hooks) {
+			for (const hook of knownHookEvents) {
+				hooks[hook] = hooks[hook].concat(source.hooks[hook]);
+			}
+		}
+	}
+
+	merged.hooks = hooks;
+
+	return merged;
+};
+
+const mergeInstances = (instances, methods) => {
+	const handlers = instances.map(instance => instance.defaults.handler);
+	const size = instances.length - 1;
+
+	return {
+		methods,
+		options: mergeOptions(...instances.map(instance => instance.defaults.options)),
+		handler: (options, next) => {
+			let iteration = -1;
+			const iterate = options => handlers[++iteration](options, iteration === size ? next : iterate);
+
+			return iterate(options);
+		}
+	};
+};
+
+module.exports = merge;
+module.exports.options = mergeOptions;
+module.exports.instances = mergeInstances;