feat: added debug with flag (#27)

README.md

@@ -27,6 +27,8 @@ const cmd = process.argv[2];
 process.env.CORE_D_TITLE = 'your_d';
 process.env.CORE_D_DOTFILE = '.your_d';
 process.env.CORE_D_SERVICE = require.resolve('./your-service');
+// optional to get logging from the child process
+process.env.CORE_D_DEBUG = 'true';
 
 const core_d = require('core_d');
 

lib/launcher.js

@@ -35,12 +35,44 @@ function launch(callback) {
   // eslint-disable-next-line node/global-require
   const { spawn } = require('child_process');
   const daemon = require.resolve('./daemon');
-  const child = spawn('node', [daemon], {
-    detached: true,
-    env,
-    stdio: ['ignore', 'ignore', 'ignore']
-  });
-  child.unref();
+
+  // Debug is enabled
+  if (process.env.CORE_D_DEBUG) {
+    let scriptOutput = '';
+    const child = spawn('node', [daemon], {
+      detached: true,
+      env
+    });
+    child.stdout.setEncoding('utf8');
+    child.stdout.on('data', (data) => {
+      //Here is where the output goes
+      console.log(`stdout: ${data}`);
+      data = data.toString();
+      scriptOutput += data;
+    });
+
+    child.stderr.setEncoding('utf8');
+    child.stderr.on('data', (data) => {
+      //Here is where the error output goes
+      console.log(`stderr: ${data}`);
+      data = data.toString();
+      scriptOutput += data;
+    });
+
+    child.on('close', (code) => {
+      //Here you can get the exit code of the script
+      console.log(`closing code: ${code}`);
+      console.log('Full output of script: ', scriptOutput);
+    });
+    child.unref();
+  } else {
+    const child = spawn('node', [daemon], {
+      detached: true,
+      env,
+      stdio: ['ignore', 'ignore', 'ignore']
+    });
+    child.unref();
+  }
   setTimeout(() => {
     wait(callback);
   }, 100);