Determine if given job is currently running using Hudson/Jenkins API

Question

Is there an API to determine whether a given job is currently running or not?

Ideally, I\'d also like to be able to determine its estimated % complete and get the de

Answer 1

As gareth_bowles and Sagar said, using the Jenkins API is the way to know. If you put the depth to 1, you will see what you're looking for:

http://host/job/project/lastBuild/api/xml?depth=1

You will see there's a tag to tell if that build is running

...

  
    
        Started by user Zageyiff
        Zageyiff
        Zageyiff
    
  
  true
  0
  -1
  Project #12
  2012-08-24_08-58-45
  false
  12
  123456789
  
        http://host/job/project/12
  
  master
  
  3.0.3

...