Readme.md

Description

Dashing widget to display a Jenkins build status and build progress

The widget is based on the meter-widget which is default in the Dashing installation

The widget can also see the progress of a "pre-build", i.e if you have a job triggering the actual build you want to define, you can configure this job in the jenkins_build.rb as a prebuild.

For more information, please see Coding Like a tosser

Installation

Put the files jenkins_build.coffee, jenkins_build.html and jenkins_build.scss goes in the /widget/jenkins_build directory and the jenkins_build.rb in the /jobs directory

Otherwise you can install this plugin typing:

dashing install GIST_ID

Usage (jenkins_build.rb)

Change the JENKINS_URI to your correct uri for Jenkins, eg.:

JENKINS_URI = URI.parse("http://ci.yourserver.com")

Add jenkins credential (if required) in JENKINS_AUTH, eg.:

JENKINS_AUTH = {
  'name' => 'username',
  'password' => 'password'
}

Put all the jobnames and pre job names in the job_mapping, eg.:

job_mapping = {
  'job1' => { :job => 'Job Name 1'},
  'job2' => { :job => 'Job Name 2', :pre_job => 'Job Name 3'},
}

Put the following in your dashingboard.erb file to show the status:

<li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
  <div data-id="job1" data-view="JenkinsBuild" data-title="Build title" data-description="A little description of build" data-min="0" data-max="100"></div>
</li>

Multiple jobs can add in dashboard repeating the snippet and changing data-id in accord with job name specified in job_mapping. Widget support title and description via data attributes, this attributest can be omitted if you do not like to display this information.

jenkins_build.coffee

class Dashing.JenkinsBuild extends Dashing.Widget

  @accessor 'value', Dashing.AnimatedValue
  @accessor 'bgColor', ->
    if @get('currentResult') == "SUCCESS"
      "#96bf48"
    else if @get('currentResult') == "FAILURE"
      "#D26771"
    else if @get('currentResult') == "PREBUILD"
      "#ff9618"
    else
      "#999"

  constructor: ->
    super
    @observe 'value', (value) ->
      $(@node).find(".jenkins-build").val(value).trigger('change')

  ready: ->
    meter = $(@node).find(".jenkins-build")
    $(@node).fadeOut().css('background-color', @get('bgColor')).fadeIn()
    meter.attr("data-bgcolor", meter.css("background-color"))
    meter.attr("data-fgcolor", meter.css("color"))
    meter.knob()

  onData: (data) ->
    if data.currentResult isnt data.lastResult
      $(@node).fadeOut().css('background-color', @get('bgColor')).fadeIn()

jenkins_build.html

<h2 class="title" data-bind="title"></h2>

<input class="jenkins-build" data-angleOffset=-125 data-angleArc=250 data-width=200 data-readOnly=true data-bind-value="value | shortenedNumber" data-bind-data-min="min" data-bind-data-max="max">

<p class="more-info" data-bind="description"></p>

<p class="last-built" data-bind="lastBuilt"></p>

<p class="updated-at" data-bind="updatedAtMessage"></p>

jenkins_build.rb

require 'net/http'
require 'json'
require 'time'

JENKINS_URI = URI.parse("http://localhost:8080")

JENKINS_AUTH = {
  'name' => nil,
  'password' => nil
}

# the key of this mapping must be a unique identifier for your job, the according value must be the name that is specified in jenkins
job_mapping = {
  'JOB' => { :job => 'BUILD', :pre_job => 'PRE_BUILD'}
}

def get_number_of_failing_tests(job_name)
  info = get_json_for_job(job_name, 'lastCompletedBuild')
  info['actions'][4]['failCount']
end

def get_completion_percentage(job_name)
  build_info = get_json_for_job(job_name)
  prev_build_info = get_json_for_job(job_name, 'lastCompletedBuild')

  return 0 if not build_info["building"]
  last_duration = (prev_build_info["duration"] / 1000).round(2)
  current_duration = (Time.now.to_f - build_info["timestamp"] / 1000).round(2)
  return 99 if current_duration >= last_duration
  ((current_duration * 100) / last_duration).round(0)
end

def get_json_for_job(job_name, build = 'lastBuild')
  job_name = URI.encode(job_name)
  http = Net::HTTP.new(JENKINS_URI.host, JENKINS_URI.port)
  request = Net::HTTP::Get.new("/job/#{job_name}/#{build}/api/json")
  if JENKINS_AUTH['name']
    request.basic_auth(JENKINS_AUTH['name'], JENKINS_AUTH['password'])
  end
  response = http.request(request)
  JSON.parse(response.body)
end

job_mapping.each do |title, jenkins_project|
  current_status = nil
  SCHEDULER.every '10s', :first_in => 0 do |job|
    last_status = current_status
    build_info = get_json_for_job(jenkins_project[:job])
    current_status = build_info["result"]
    if build_info["building"]
      current_status = "BUILDING"
      percent = get_completion_percentage(jenkins_project[:job])
    elsif jenkins_project[:pre_job]
      pre_build_info = get_json_for_job(jenkins_project[:pre_job])
      current_status = "PREBUILD" if pre_build_info["building"]
      percent = get_completion_percentage(jenkins_project[:pre_job])
    end

    send_event(title, {
      currentResult: current_status,
      lastResult: last_status,
      timestamp: build_info["timestamp"],
      value: percent
    })
  end
end

jenkins_build.scss

// ----------------------------------------------------------------------------
// Sass declarations
// ----------------------------------------------------------------------------
$background-color:  #4b5f24;

$title-color:       rgba(255, 255, 255, 1);
$moreinfo-color:    rgba(255, 255, 255, 0.7);

$meter-background:  rgba(20, 20, 20, 1);

// ----------------------------------------------------------------------------
// Widget-jenkins-build styles
// ----------------------------------------------------------------------------
.widget-jenkins-build {
  background-color: $background-color;

  input.jenkins-build {
    background-color: $meter-background;
    color: #fff;
  }

  .title {
    color: $title-color;
  }

  .more-info {
    color: $moreinfo-color;
  }

  .updated-at {
    color: rgba(0, 0, 0, 1);
  }
}

Internet Archive link to the "Coding like a tosser" page: https://web.archive.org/web/20141021233221/http://steintoretosse.wordpress.com:80/2013/04/05/jenkins-build-status-widget-for-dashing/

Hey, great job it helps alot!
The only problem is that our jenkins is pretty busy and gets overwhelmed by the number of requests. We shortened your code a bit so we now have one request per job but the problem is still the same.
Is there a way to get information for multiple jobs out of a single request?