Software Process, CMake, Software Process, CMake, Dashboards, CPack Dashboards, CPack

Bill HoffmanBill Hoffman

Kitware, Inc.Kitware, Inc.

kitware@kitware.comkitware@kitware.com

http://www/kitware.comhttp://www/kitware.com

1-518-371-39711-518-371-3971

Software Process Software Process OverviewOverview CMake – cross platform building Dashboards – continuous testing Mailing List – Developer communication Wiki – Stored developer communication Issue Tracker phpBugTracker – keep

track of bugs and feature requests

OutlineOutline

CMake - Change the CMake - Change the way ALL way ALL programmers build programmers build softwaresoftware

Dashboards - If its not Dashboards - If its not tested it doesn’t worktested it doesn’t work

CPackCPack

CMake - changing the way CMake - changing the way ALL programmers compile ALL programmers compile codecode 1999 Start of the ITK project Kitware tasked with build environment

• VTK current build system autoconf on UNIX pcmaker on Windows Very specific to VTK and hard to

maintain, no system introspection on windows

• CMake born out of necessity 2006 KDE adopted CMake

CMake RequirmentsCMake Requirments

Support UNIX/LINUX/Windows/MAC Simple easy to use Support code generation at build time

( c++ wrapper support) Do not require any software other than

CMake to be installed. • Need only a C++ compiler (same as ITK

itself) Use Native Build tools like Visual Studio

and Xcode

Windows GUI

Unix GUI

CMakeLists.txt

MSVCProject

.NET Solution

Makefile

Userselects

CMake: Example UsageCMake: Example Usage

CMake GUI (ccmake CMake GUI (ccmake CMakeSetup) Process Flow CMakeSetup) Process Flow

Configure

Write CMakeCache.txt

Did Cache

Change?

Yes

No

GenerateMakefile or

Project

CMake LanguageCMake Language

COMMAND(args) : COMMAND is the name of the command, and args is a white space separated list of arguments.

# files needed:Hello.c CMakeLists.txt

The CMakeLists.txt file would contain two lines: PROJECT (Hello) ADD_EXECUTABLE(Hello Hello.c)

CMake LanguageCMake Language

project(SampleProject)find_package(VTK REQUIRED)include(${VTK_USE_FILE})

set(SOURCES mySource1.cxx mySource2.cxx)add_executable(myExecutable ${SOURCES})target_link_libraries(myExecutable vtkRendering)

•Easy for smaller projects to use larger projects

Software Process Software Process DashboardsDashboards

RevisionControl

Results posted on web(i.e., the dashboard)Central DART ServerCVS/SVN maintains

source code revisions

CMake/CTest compiles and tests source code

Distributed Clients

Developers review results

Developers check-in code

Dashboards – Dashboards – “If it’s not tested it doesn’t “If it’s not tested it doesn’t work”work” Code Dasboards and our Software

Process• Roots in GE Six Sigma initiative

Nightly regression testing (see VTK Dashboard)

Memory (Purify/ValGrind) testing Coverage testing Documentation evaluation Cross platform testing

VTK Quality DashboardVTK Quality Dashboard

http://public.kitware.com/VTK/Testing/Dashboard/MostRecentResults-Nightly/Dashboard.html

Regression TestingRegression Testing Compare generated image against

standard “correct” image• pixel-by-pixel comparison• can use a threshold metric• adjusted for effects like dithering• OpenGL is rather loose about image

quality

Can search for the checkin Can search for the checkin that caused the problemthat caused the problem

Why Test Daily?Why Test Daily?

Large code base too large for any single developer to understand

Developers distributed around the world Identify problems as they occur Insure that object API remains

unchanged Provide feedback to developers as they

experiment with new implementations

CPack – create platform CPack – create platform specific installersspecific installers

NSIS Windows installer package.exe ZIP file windows install file package.zip .tar.gz .tar.Z compressed files

package.tar.gz .tar.sh – package.tar.sh self extracting shell

files Cygwin setup.exe packages

CMake Build Package