EGL headless build integrated with RTC
changhui 270002CK55 Comments (2) Visits (4491)
This tutorial offers you a scenario of how to run EGL headless build automatically using the RTC Jazz build system. In this scenario, the EGL developers use RBD to develop EGL projects, and they use RTC as the source control system for such EGL projects. We will explore how the developers kick off a build in the Jazz build server, where they can automatically check out, compile, generate and deploy the EGL project.
This scenario can be particularly used for the continuous integration of EGL projects which is one of the key factors of Agile programming.
Before we start this tutorial, you must have some basic understanding of Rational Business Developer(RBD) and Rational Team Concert(RTC). Please refer to the reference for more information.
Figure 1: Scenario Structure
In this scenario, a RTC server is set up to provide the source repository. EGL developers (could be a large number of developers) create and develop the EGL program and deliver to RTC server again and again. Usually, the RTC build client administrator will kick off a build request at a certain time for a particular time period ( e.g. daily or hourly ). The Jazz build engine will respond to the build request and do the build.
A quick overview of the steps of the scenario is as follows:
Attached are all the data needed for running this scen
In the scenario, we provide a sample workspace which contains all kinds of EGL projects including RUI project with Services, Web project, Cobol project etc. We will build all these projects and deploy the RUI project automatically.
Setup the Environment
There are 4 kinds of roles in this scenario:
After setting up the environment, we should start the RTC server and Jazz build engine to process any requests from clients.
Configure the RTC build client
In this section, we will set up the RTC build client. We will complete the following tasks:
Notice that, this section is all about RTC configuration, we can get a more detailed instruction from RTC documents.
Connect to the RTC server
We should connect to the RTC server which serves as the source code repository. You must get an invitation email from the RTC server admin before you connect to the server. Follow this link to do the connection: http
Define a build engine
The build engine identifies the build system that performs builds. The build engine identifier (engine ID) is typically the same as the build machine name, so that it is easier to determine which build machine is associated with which engine ID. Follow this link to create a build engine:
Figure 2: The build engines and build definitions after setting up
Define a build definition
Build definitions are based on various build templates, such as Ant, command line, or Maven. We will use Ant script in this scenario. Follow this link to crate a new build definition. http
Note that we can specify properties in the properties tab. These properties can be used in the build definition and the build script. We need to specify several common properties here. The paths are paths in the Jazz Build Engine machine. Figure 3 is the properties setting we use in this scenario.
Figure 3: Build Definition properties setting
In the Jazz Source Control tab, we specify the repository workspace where the EGL projects are stored, which is “EGL Build Sample Workspace” in this scenario.
Load directory is a directory that resides in the Jazz Build Engine machine in which the EGL projects will be retrieved and built. Figure 4 is the Jazz Source Control settings we use in this scenario.
Figure 4: Build Definition Jazz Source Control setting
Figure 5: Build Definition Ant setting
Create the build script
The build script is identified in the build definition and will be run in the Jazz build engine. In our scenario, the build script is defined in the RBDBuildScripts project callAnt.xml. Note that, the project is also shared in the RTC repository, so the build script can be updated and the latest will be run automatically by the Jazz build.
There are 2 ant script files in RBDBuildScripts. callAnt.xml is the entry ant script file. It connects RTC with RBD. buildAll.xml will leverage RAD and RBD ant tasks to do the build.
Figure 6: callAnt.xml
buildAll.xml is more complicated. It uses the ant tasks defined by Eclipse, RAD, RBD and ant-contrib lib together to finish the automatically headless build of the EGL project. The link for the ant tasks library can be found:
RBD also provides more ant tasks: egl.
Please refer to RBD document for the full list of EGL ant tasks and their properties.
The buildAll.xml is composed by 4 components:
Note that, this buildAll.xml is just a sample file. User can define their own build script file according to their needs.
Deliver the EGL projects
EGL developers will develop the EGL projects and deliver to the RTC repository workspace. The build scripts can also be delivered there.
In this scenario, we should import the projects in the zip file into a RBD developer workspace with RTC client installed. Then you can share the projects to the RTC repository workspace “EGL Build Sample Workspace”. User can repeatedly update and test the EGL projects and deliver to the repository.
Note that, there are build scripts in the build folder in some of the projects. The name here must be consistent with the buildAll.xml section 4. In this scenario, these build.xml files are designed to run actions that won’t be done by the workspace build. In EGL, Java and JS generation will be done by workspaceBuild while COBOL generation won’t be run by default configuration. So build.xml should contain generation for COBOL project but should not contain generation for Java or RUI projects.
Create build script
We have created an overall build script buildAll.xml in last section. In the build script, we will run build scripts inside of the imported projects build folder. To create a build script for a specific project, the location and name of the build script must be consistent to what’s in buildAll.xml. So we will create build.xml in build folder if it is necessary.
In this scenario, we created some build scripts inside of the test projects:
ACobolProject: Invoke egl.generate to generate COBOL for EGL source. The COBOL generation is not invoked by the workspace build by default, so we need an additional build script.
ARUIProject: Invoke egl.deploy to deploy the RUI project to a web project.
AJavaProject: Invoke egl.export to export the project into an EGLAR file.
Test the build script locally
The developer can test the build script in the local workspace before it’s delivered to the repository workspace. To test the build script, follow the steps below:
After testing, we should remove the builder configuration because some of the behaviors of build script do not need to run for each build such as deploy or export EGLAR. In order not to affect other developers, the builder should be removed before delivering to the server.
Request a build
We can schedule a build and run it automatically or request a build manually. In this scenario, in the Team Artifact view, we can right click the “EGL Sample Build” build definition, select “Request Build...” to run the build.
Figure 7: Build result view
Double click any build, we can examine the Logs of the build.
More details can be found in http
Reference and further reading