feat(sdef-to-dfs): add command line converter as bin

Adds a converter as the default bin which will convert a '.app'
application container into a '.d.ts' file.

packages/@jxa/sdef-to-dts/bin/cmd.js

@@ -0,0 +1,70 @@
+#!/usr/bin/env node
+
+const fs = require("fs");
+const path = require("path");
+const child_process = require("child_process");
+const transform = require("../lib/sdef-to-dts").transform;
+
+function usage() {
+  console.log();
+  console.log("Usage: npx @jxa/sdef-to-dts inFile [out]");
+  console.log();
+  console.log("  Converts Script Definitions into TypeScript Type Definitions")
+  console.log();
+  console.log("  inFile - path to an Application.app to read");
+  console.log("  out - path to an Application.d.ts or a directory to write to");
+  console.log();
+}
+
+if (process.argv.length !== 3 && process.argv.length !== 4) {
+  usage();
+  process.exit(1);
+}
+
+const [node, cmd, inFile, out] = process.argv;
+
+run(inFile, out);
+
+function run(inPath, out) {
+  const appName = path.basename(inPath, ".app").replace(/\s/g, "");
+  const outPath = outFile(appName, out);
+
+  const sdef = readSdef(inPath);
+  writeDTS(appName, outPath, sdef)
+    .then(() => {
+      console.log("Converted: " + inPath + " to " + outPath);
+    });
+}
+
+function outFile(appName, out) {
+  if (out) {
+    if (fs.existsSync(out) && fs.lstatSync(out).isDirectory()) {
+      return path.resolve(out, appName) + ".d.ts";
+    } else {
+      return path.resolve(out).replace(/.d.ts$/, "") + ".d.ts";
+    }
+  } else {
+    return path.resolve(appName) + ".d.ts";
+  }
+}
+
+function readSdef(path) {
+  try {
+    return child_process.execSync("sdef " + path, {stdio: ["ignore"]}).toString();
+  } catch (e) {
+    console.error(e.toString());
+    usage();
+    process.exit(2);
+  }
+}
+
+function writeDTS(appName, outPath, sdef) {
+  return transform(appName, sdef).then(content => {
+    fs.writeFileSync(outPath, content, "utf-8");
+  }).catch(err => {
+    console.error(err.toString());
+    usage();
+    process.exit(3);
+  });
+}
+

packages/@jxa/sdef-to-dts/package.json

@@ -22,6 +22,7 @@
   ],
   "main": "lib/sdef-to-dts.js",
   "types": "lib/sdef-to-dts.d.ts",
+  "bin": "bin/cmd.js",
   "directories": {
     "lib": "lib",
     "test": "test"