Convert queue.js to TypeScript (#1000)

* Convert queue.js to TypeScript

* Update src/queue.ts

Co-Authored-By: mbleigh <mbleigh@mbleigh.com>

* Update src/queue.ts

Co-Authored-By: mbleigh <mbleigh@mbleigh.com>

* Update src/queue.ts

Co-Authored-By: mbleigh <mbleigh@mbleigh.com>

* Update src/deploy/hosting/uploader.js

Co-Authored-By: mbleigh <mbleigh@mbleigh.com>

* Address comments.

.prettierrc

@@ -1,4 +1,5 @@
 {
   "trailingComma": "es5",
-  "printWidth": 100
+  "printWidth": 100,
+  "arrowParens": "always"
 }

src/commands/serve.js

@@ -22,13 +22,13 @@ if (previews.emulators) {
   VALID_TARGETS = ["functions", "hosting", "database", "firestore"];
 }
 
-var filterOnlyEmulators = only => {
+var filterOnlyEmulators = (only) => {
   if (!only) {
     return [];
   }
   return _.intersection(
     VALID_EMULATORS,
-    only.split(",").map(opt => {
+    only.split(",").map((opt) => {
       return opt.split(":")[0];
     })
   );
@@ -46,7 +46,7 @@ module.exports = new Command("serve")
     "--except <targets>",
     "serve all except specified targets (valid targets are: " + VALID_TARGETS.join(", ") + ")"
   )
-  .before(options => {
+  .before((options) => {
     if (filterOnlyEmulators(options.only).length > 0) {
       return Promise.resolve();
     }
@@ -55,7 +55,7 @@ module.exports = new Command("serve")
       .then(() => checkDupHostingKeys(options))
       .then(() => getProjectNumber(options));
   })
-  .action(options => {
+  .action((options) => {
     options.targets = filterOnlyEmulators(options.only);
     if (options.targets.length > 0) {
       return serve(options);

src/deploy/hosting/uploader.js

@@ -12,7 +12,7 @@ const hashcache = require("./hashcache");
 const detectProjectRoot = require("../../detectProjectRoot");
 const api = require("../../api");
 const logger = require("../../logger");
-const Queue = require("../../queue");
+const { Queue } = require("../../queue");
 
 const MIN_UPLOAD_TIMEOUT = 30000; // 30s
 const MAX_UPLOAD_TIMEOUT = 7200000; // 2h

src/emulator/download.js

@@ -5,14 +5,14 @@ const request = require("request");
 const emulatorConstants = require("./constants");
 const utils = require("../utils");
 
-module.exports = name => {
+module.exports = (name) => {
   return new Promise((resolve, reject) => {
     utils.logLabeledBullet(name, "downloading emulator...");
     let emulator = emulatorConstants.emulators[name];
     fs.ensureDirSync(emulator.cacheDir);
     let req = request.get(emulator.remoteUrl);
     let writeStream = fs.createWriteStream(emulator.localPath);
-    req.on("error", err => reject(err));
+    req.on("error", (err) => reject(err));
     req.on("end", () => {
       writeStream.close();
       fs.chmodSync(emulator.localPath, 0o755);

src/firebaseApi.js

@@ -15,7 +15,7 @@ function _list(nextPageToken, projects) {
       auth: true,
       origin: api.firebaseApiOrigin,
     })
-    .then(response => {
+    .then((response) => {
       projects = projects.concat(response.body.results);
       if (response.body.nextPageToken) {
         return _list(response.body.nextPageToken, projects);
@@ -26,10 +26,10 @@ function _list(nextPageToken, projects) {
 
 exports.listProjects = () => _list();
 
-exports.getProject = projectId =>
+exports.getProject = (projectId) =>
   api
     .request("GET", `/${API_VERSION}/projects/${projectId}`, {
       auth: true,
       origin: api.firebaseApiOrigin,
     })
-    .then(response => response.body);
+    .then((response) => response.body);

src/init/features/project.js

@@ -43,7 +43,7 @@ function _getProject(options) {
 
   // Load all projects and prompt the user to choose.
   return firebaseApi.listProjects().then(function(projects) {
-    var choices = projects.filter(project => !!project).map(project => {
+    var choices = projects.filter((project) => !!project).map((project) => {
       return {
         name: project.projectId,
         label: project.projectId + " (" + project.displayName + ")",
@@ -82,7 +82,7 @@ function _getProject(options) {
         }
 
         var id = prompt.listLabelToValue(label, choices);
-        const project = projects.find(p => p.projectId === id);
+        const project = projects.find((p) => p.projectId === id);
         return {
           id: id,
           label: label,