From 4dcd448a9fe8985bc045e8ae4e263fd3c1b66173 Mon Sep 17 00:00:00 2001
From: Unitech <strzelewicz.alexandre@gmail.com>
Date: Wed, 27 Jul 2016 11:38:45 -0700
Subject: [PATCH] postExec command on PMD

---
 CHANGELOG.md  |  2 +-
 lib/DevCli.js | 42 +++++++++++++++++++++++++++++++++++++++---
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72f3e194..9f923063 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@
 - Much better Module system with raw NPM feedback
 - Better Windows support
 - **pm2-docker** command with his official [Docker image](https://github.com/keymetrics/pm2-docker-alpine)
-- **pm2-dev** command enhanced
+- **pm2-dev -> pmd** command enhanced (better log output, post-exec cmd)
 - Watch and Reload instead of Watch and Restart
 - New PM2 API, backward compatible with previous PM2 versions
 
diff --git a/lib/DevCli.js b/lib/DevCli.js
index a1e91794..0cd04576 100644
--- a/lib/DevCli.js
+++ b/lib/DevCli.js
@@ -14,12 +14,15 @@ var Common    = require('./Common');
 var chalk     = require('chalk');
 var path      = require('path');
 var fmt       = require('./tools/fmt.js');
+var exec      = require('child_process').exec;
 
 process.env.PM2_SILENT = 'true';
 
 commander.version(pkg.version)
   .option('--raw', 'raw log output')
   .option('--ignore [files]', 'files to ignore while watching')
+  .option('--post-exec [cmd]', 'execute extra command after change detected')
+  .option('--silent-exec', 'do not output result of post command', false)
   .usage('[cmd] app');
 
 var pm2 = new PM2.custom({
@@ -30,6 +33,28 @@ pm2.connect(function() {
   commander.parse(process.argv);
 });
 
+function postExecCmd(command, cb) {
+  var exec_cmd = exec(command);
+
+  if (commander.silentExec !== true) {
+    exec_cmd.stdout.on('data', function(data) {
+      process.stdout.write(data);
+    });
+
+    exec_cmd.stderr.on('data', function(data) {
+      process.stderr.write(data);
+    });
+  }
+
+  exec_cmd.on('close', function done() {
+    if (cb) cb(null);
+  });
+
+  exec_cmd.on('error', function (err) {
+    console.error(err.stack || err);
+  });
+};
+
 function run(cmd, opts) {
   var timestamp = commander.timestamp;
 
@@ -61,8 +86,20 @@ function run(cmd, opts) {
     fmt.field('Processes started', chalk.bold(procs.length));
     fmt.field('Watch and Restart', chalk.green('Enabled'));
     fmt.field('Ignored folder', commander.ignore_watch || 'node_modules');
+    if (commander.postExec)
+      fmt.field('Post restart cmd', commander.postExec);
     fmt.sep();
 
+    setTimeout(function() {
+      pm2.Client.launchBus(function(err, bus) {
+        bus.on('process:event', function(packet) {
+          if (packet.event == 'online') {
+            postExecCmd(commander.postExec);
+          }
+        });
+      });
+    }, 1000);
+
     Log.devStream(pm2.Client, 'all', commander.raw, timestamp, false);
 
     process.on('SIGINT', function() {
@@ -82,9 +119,8 @@ commander.command('*')
     run(cmd, opts);
   });
 
-commander.command('run <file|json_file>')
-  .alias('start')
-  .description('run <file|json_file> in development mode')
+commander.command('start <file|json_file>')
+  .description('start target config file/script in development mode')
   .action(function(cmd, opts) {
     run(cmd, opts);
   });