Move scripts to bin field of package.json for cli hackery

package.json

@@ -35,6 +35,11 @@
     "coverage": "codecov",
     "watch": "npx nodemon --watch 'src' --ext 'ts' --exec npm run build"
   },
+  "bin": {
+    "slack-cli-get-hooks": "./src/cli/get-hooks.js",
+    "slack-cli-get-manifest": "./src/cli/manifest.js",
+    "slack-cli-start": "./src/cli/start.js"
+  },
   "repository": "slackapi/bolt",
   "homepage": "https://slack.dev/bolt-js",
   "bugs": {

src/cli/get-hooks.js

@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+console.log(JSON.stringify({
+  hooks: {
+    'get-manifest': 'npm exec --package=@slack/bolt slack-cli-get-manifest',
+    start: 'npm exec --package=@slack/bolt slack-cli-start',
+  },
+  config: {
+    watch: {
+      'filter-regex': '^manifest\\.(ts|js|json)$',
+      paths: [
+        '.',
+      ],
+    },
+    'sdk-managed-connection-enabled': true,
+  },
+}));

src/cli/manifest.js

@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+// Manifest script hook returns a manifest JSON if it exists in the working directory
+const fs = require('fs');
+const path = require('path');
+(function _(cwd) {
+  // TODO: Support additonal accepted formats
+  // const acceptedFormat = ['json', 'yml', 'ts'];
+  let fileData;
+  try {
+    fileData = fs.readFileSync(path.resolve(cwd, 'manifest.json'), 'utf8');
+  } catch (error) {
+    // TODO: Throw a coded error
+    console.error(`Failed to find a manifest file in this project: ${error}`);
+    process.exit(1);
+  }
+  console.log(JSON.stringify(JSON.parse(fileData)));
+}(process.cwd()));

src/cli/start.ts → src/cli/start.js

@@ -1,11 +1,12 @@
-import { spawn } from 'child_process';
-import path from 'path';
+#!/usr/bin/env node
+const { spawn } = require('child_process');
+const path = require('path');
 
 // Run script hook verifies that requirements for running an App in
 // in developerMode (via Socket Mode) are met
-(function _(cwd: string) {
+(function _(cwd) {
   // TODO - Format so that its less miss-able in output
-  process.stdout.write('Preparing local run in developer mode (Socket Mode)\n');
+  console.log('Preparing local run in developer mode (Socket Mode)');
   // Check required local run tokens
   validate();
 
@@ -21,7 +22,7 @@ import path from 'path';
   });
 
   app.on('close', (code) => {
-    process.stdout.write(`bolt-app local run exited with code ${code}`);
+    console.log(`bolt-app local run exited with code ${code}`);
   });
 }(process.cwd()));