[teraslice-cli] Fix build:watch command (#3877)

This PR makes the following changes:

- Fixes an issue introduced in #3851 that breaks `build:watch` 
- This now properly compiles/bundles `teraslice-cli` on watch mode when
a change is made

package.json

@@ -14,12 +14,13 @@
     ],
     "scripts": {
         "prebuild": "./packages/xlucene-parser/scripts/generate-engine.js",
-        "build": "tsc --build --verbose && yarn workspace teraslice-cli build --verbose",
+        "build": "tsc --build --verbose",
+        "postbuild": "yarn workspace teraslice-cli postbuild",
         "build:cleanup": "./scripts/build-cleanup.sh",
         "build:doctor": "./scripts/build-doctor.sh",
         "build:fix": "echo '[DEPRECATED], use yarn run build:doctor instead'",
         "build:pkg": "./scripts/build-pkg.sh",
-        "build:watch": "yarn run build --watch",
+        "build:watch": "yarn run build --watch & yarn workspace teraslice-cli node build.js --watch",
         "bump": "ts-scripts bump",
         "docker:limit": "./scripts/docker-limit-check.sh",
         "docker:listImages": "ts-scripts images list",

packages/teraslice-cli/build.js

@@ -1,6 +1,6 @@
 import esbuild from 'esbuild';
 
-esbuild.build({
+const ctx = await esbuild.context({
     entryPoints: ['src/command.ts'],
     outfile: 'dist/src/ts-cli.js', // Output file path
     bundle: true,
@@ -9,4 +9,11 @@ esbuild.build({
     sourcemap: false,
     inject: ['cjs-to-esm.js'],
     external: ['esbuild']
-}).catch(() => process.exit(1));
+});
+
+if (process.argv.includes('--watch')) {
+    await ctx.watch();
+} else {
+    await ctx.rebuild();
+    ctx.dispose();
+}

packages/teraslice-cli/package.json

@@ -31,8 +31,9 @@
         "dist/src/helpers/esm-shims.js"
     ],
     "scripts": {
-        "build": "tsc --build && node build.js",
-        "build:watch": "tsc --build --watch",
+        "build": "tsc --build",
+        "postbuild": "node build.js",
+        "build:watch": "tsc --build --watch & node build.js --watch",
         "test": "ts-scripts test . --",
         "test:debug": "ts-scripts test --debug . --",
         "test:watch": "ts-scripts test --watch . --"