chore: add @ts-check for scripts written in JavaScript (#1389)

Author: trivikr

Diff for: scripts/generate-clients/code-gen-dir.js

@@ -1,3 +1,4 @@
+// @ts-check
 const { join, normalize } = require("path");
 
 const CODE_GEN_ROOT = normalize(join(__dirname, "..", "..", "codegen"));

Diff for: scripts/generate-clients/code-gen.js

@@ -1,3 +1,4 @@
+// @ts-check
 const path = require("path");
 const { emptyDirSync } = require("fs-extra");
 const { copyFileSync, readdirSync, lstatSync } = require("fs");

Diff for: scripts/generate-clients/code-prettify.js

@@ -1,3 +1,4 @@
+// @ts-check
 const { spawnProcess } = require("./spawn-process");
 
 const prettifyCode = async (dir) => {

Diff for: scripts/generate-clients/copy-to-clients.js

@@ -1,3 +1,4 @@
+// @ts-check
 const { join } = require("path");
 const { copySync, ensureDirSync } = require("fs-extra");
 const { readdirSync, lstatSync, readFileSync, existsSync, writeFileSync } = require("fs");

Diff for: scripts/generate-clients/index.js

@@ -1,3 +1,4 @@
+// @ts-check
 const yargs = require("yargs");
 const path = require("path");
 const { emptyDirSync, rmdirSync } = require("fs-extra");

Diff for: scripts/generate-clients/spawn-process.js

@@ -1,3 +1,4 @@
+// @ts-check
 const { spawn } = require("child_process");
 
 const spawnProcess = (command, args = [], options = {}) =>

Diff for: scripts/verdaccio-publish/index.js

@@ -3,6 +3,8 @@
 
 // Reference: https://github.com/aws/aws-encryption-sdk-javascript/pull/276
 
+// @ts-check
+
 const { spawn, execSync } = require("child_process");
 const pipeStdIo = { stdio: [process.stdin, process.stdout, process.stderr] };