South Florida Enterprise and Strategy Architects Special Interest Group (SF ESA

SIG)June 19, 2007

Lawrence PortOtive LLC

larry@otive.com

What is Continuous Integration?“Continuous Integration is a software

development practice where members of a team integrate their work frequently, usually each person integrates at least daily - leading to multiple integrations per day. Each integration is verified by an automated build (including test) to detect integration errors as quickly as possible.” –Martin Fowler

An XP techniquePair programmingPlanning GameTest Driven DevelopmentWhole teamContinuous IntegrationDesign ImprovementSmall ReleasesCoding StandardsCollective Code OwnershipSimple DesignSystem MetaphorSustainable Pace

Continuous Integration Scenario1. Developer checks out latest source code from

repository.2. Developer makes changes (hopefully with TDD).3. Developer checks out latest source again to look

for conflicts.4. With conflicts resolved, developer checks in

changes to repository.5. CI system, detecting changes, checks out source

code on an integration server.6. CI system builds.7. CI system runs automated tests.

Demo: Alice

Is CI just another unpracticed trend?Who in the room does CI?Nant and CruiseControl.Net widely used.

Nant OverviewTargets contain Tasks (think functions)Tasks perform actions

Targets may have

dependencies

Properties are variables

<target name="config"> <property name="build.dir" value="CruiseControlDemoProject\bin\Debug"/> </target>

<target name="clean" depends="config"> <delete dir="${build.dir}"/> <mkdir dir="${build.dir}"/> </target>

Demo: basic file usage

Important Nant TasksNunitCopyMkdir, rmdirForeachZip, tarFunctions exist as wellAlso: ability to pass in parameters at

command line

Show: Nant documentation

CruiseControl.Net OverviewSuite of apps for Continuous Integration:

CCNet ServerCCNet Web DashboardCCNet Tray

Allows reporting via XSL.

Demo: Start server, show web dash

General CC.Net Flow

ccnet.exe

nant nunit

fitnesse

coverage

fxcop

xml resultmerge

xsl

Source control

Important CCNet Config ElementsSource ControlTasksPublishersTriggersNantMergeEmail

Demo: ccnet.config

More In-depth CIWorking with DatabasesDistributed build scenariosCustom Nant tasksCustom CruiseControl.Net elements

Demo: dashboard.config, ccnet.exe.config, javascriptlocalizer,

References CruiseControl.Net:

http://confluence.public.thoughtworks.org/display/CCNET/Welcome+to+CruiseControl.NET

Nant: http://nant.sourceforge.net/ Original CI article:

http://www.martinfowler.com/articles/continuousIntegration.html