feat: reconfigure pendingJobs as after hooks

BREAKING CHANGE:
Pending jobs are now exposed on hooks.after result of ongoing item

lib/private/install-package/index.js

@@ -1,6 +1,7 @@
 "use strict";
 
-const { resolve }                 = require("path")
+const clear                       = require("es5-ext/array/#/clear")
+    , { resolve }                 = require("path")
     , log                         = require("log4").get("npm-cross-link")
     , isDirectory                 = require("fs2/is-directory")
     , npmLink                     = require("./npm-link")
@@ -14,14 +15,15 @@ const finalize = async ({ name }, progressData) => {
 	log.debug("mark %s as done", name);
 	done.add(name);
 
-	const pendingJobs = ongoing.get(name);
+	const { hooks: { after: jobs } } = ongoing.get(name);
 	log.debug("remove %s from ongoing", name);
 	ongoing.delete(name);
 
-	// Run pending jobs
-	if (pendingJobs.length) {
+	// Run after jobs
+	if (jobs.length) {
 		log.info("run pending jobs of %s", name);
-		for (const pendingJob of pendingJobs) await pendingJob();
+		for (const job of jobs) await job();
+		clear.call(jobs);
 	}
 	progressData.emit("end", { name });
 };
@@ -41,7 +43,7 @@ module.exports = async (packageContext, userConfiguration, inputOptions, progres
 	progressData.emit("start", { name, type: (await isDirectory(path)) ? "update" : "install" });
 
 	log.debug("mark %s as ongoing", name);
-	ongoing.set(name, []);
+	ongoing.set(name, { hooks: { after: [] } });
 
 	// Ensure repository is up to date
 	await setupRepository(path, meta.repoUrl, inputOptions);

lib/private/setup-dependencies/setup-dependency/index.js

@@ -7,7 +7,9 @@ module.exports = async (dependencyContext, userConfiguration, inputOptions, prog
 	const { done, ongoing } = progressData;
 	if (!isExternal) {
 		if (ongoing.has(name)) {
-			ongoing.get(name).push(() => npmLinkDependency(dependencyContext, progressData));
+			ongoing
+				.get(name)
+				.hooks.after.push(() => npmLinkDependency(dependencyContext, progressData));
 			return;
 		}
 		if (!done.has(name)) {