updated package.json

node_modules/ps-tree/index.js

@@ -0,0 +1,49 @@
+var spawn = require('child_process').spawn, 
+    es    = require('event-stream');
+
+module.exports = childrenOfPid
+
+function childrenOfPid( pid, callback) {
+  var headers = null;
+
+  if('function' !== typeof callback) 
+    throw new Error('childrenOfPid(pid, callback) expects callback')
+  if('number' == typeof pid)
+    pid = pid.toString()
+  
+  es.connect(
+    spawn('ps', ['-A', '-o', 'ppid,pid']).stdout,
+    es.split(),
+    es.map(function (line, cb) { //this could parse alot of unix command output
+      var columns = line.trim().split(/\s+/)
+      if(!headers)
+        headers = columns
+      else {
+        var row = {}
+        //for each header, 
+        var h = headers.slice()
+        while (h.length) {
+          row[h.shift()] = h.length ? columns.shift() : columns.join(' ')
+        }
+        return cb(null, row)
+      }
+      return cb()
+    }),
+    es.writeArray(function (err, ps) {
+      var parents = [pid], children = []
+      ps.forEach(function (proc) {
+        if(-1 != parents.indexOf(proc.PPID)) {
+          parents.push(proc.PID)
+          children.push(proc)
+        }
+      })
+      callback(null, children)    
+    })
+  ).on('error', callback)
+}
+
+if(!module.parent) {
+  childrenOfPid(process.argv[2] || 1, function (err, data) {
+  console.log(data)
+  })
+}