refactor: Use TypeScript 3.8

package.json

@@ -40,7 +40,7 @@
     "tslint": "6.0.0",
     "tslint-config-prettier": "1.18.0",
     "tslint-plugin-prettier": "2.1.0",
-    "typescript": "3.7.5",
+    "typescript": "3.8.2",
     "uuid": "3.4.0"
   },
   "engines": {

src/FileService.ts

@@ -5,7 +5,7 @@ import * as os from 'os';
 import parsePath = require('parse-path');
 import * as path from 'path';
 
-import {Options, RawReleaseInfo} from './ElectronInfo';
+import type {Options, RawReleaseInfo} from './ElectronInfo';
 import {HTTPService} from './HTTPService';
 
 export class FileService {

src/HTTPService.ts

@@ -3,7 +3,7 @@ import {promises as fs} from 'fs';
 import * as logdown from 'logdown';
 import {inspect} from 'util';
 
-import {Options, RawReleaseInfo} from './ElectronInfo';
+import type {Options, RawReleaseInfo} from './ElectronInfo';
 
 export type HTTPOptions = Pick<Options, 'debug' | 'timeout'>;
 

src/cli.ts

@@ -4,22 +4,22 @@ import * as program from 'commander';
 import * as fs from 'fs';
 import * as path from 'path';
 
-import {ElectronInfo, RawDeps, SupportedDependencies} from './ElectronInfo';
+import {ElectronInfo, SupportedDependencies} from './ElectronInfo';
+import type {RawDeps} from './ElectronInfo';
 
 const defaultPackageJsonPath = path.join(__dirname, 'package.json');
 const packageJsonPath = fs.existsSync(defaultPackageJsonPath)
   ? defaultPackageJsonPath
   : path.join(__dirname, '../package.json');
 
 const packageJson = fs.readFileSync(packageJsonPath, 'utf-8');
-const {description, name, version}: {description: string; name: string; version: string} = JSON.parse(packageJson);
+const {description, name, version} = JSON.parse(packageJson);
 
 let matchedCommand = false;
 
 program
   .name(name)
-  .description(
-    `${description}
+  .description(`${description}
 
 Allowed version argument inputs:
   - SemVer versions (e.g. "~7")
@@ -50,17 +50,18 @@ program
     }
     try {
       const electronInfo = new ElectronInfo({
-        ...(parent.debug && {debug: true}),
-        ...(parent.force && {forceUpdate: true}),
-        ...(parent.limit && {limit: parseInt(parent.limit, 10)}),
-        ...(typeof parent.prereleases !== undefined && {electronPrereleases: parent.prereleases}),
-        ...(parent.source && {releasesUrl: parent.source}),
-        ...(parent.timeout && {timeout: parseInt(parent.timeout, 10)}),
+        ...(parent.debug ?? {debug: true}),
+        ...(parent.force ?? {forceUpdate: true}),
+        ...(parent.limit ?? {limit: parseInt(parent.limit, 10)}),
+        ...(parent.prereleases ?? {electronPrereleases: parent.prereleases}),
+        ...(parent.source ?? {releasesUrl: parent.source}),
+        ...(parent.timeout ?? {timeout: parseInt(parent.timeout, 10)}),
       });
 
       const releases = parent.raw
         ? await electronInfo.getElectronReleases(version)
         : await electronInfo.getElectronReleases(version, true, parent.colors);
+
       console.log(releases);
     } catch (error) {
       console.error(error);

yarn.lock

@@ -5006,10 +5006,10 @@ typedarray@^0.0.6:
   resolved "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.7.5:
-  version "3.7.5"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz#0692e21f65fd4108b9330238aac11dd2e177a1ae"
-  integrity sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==
+typescript@3.8.2:
+  version "3.8.2"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-3.8.2.tgz#91d6868aaead7da74f493c553aeff76c0c0b1d5a"
+  integrity sha512-EgOVgL/4xfVrCMbhYKUQTdF37SQn4Iw73H5BgCrF1Abdun7Kwy/QZsE/ssAy0y4LxBbvua3PIbFsbRczWWnDdQ==
 
 uglify-js@^3.1.4:
   version "3.7.2"