Build Systems and CI

Scripting or automating a wide variety of mundane software development tasks

• Compiling code
• Packaging binaries
• Running tests
• Deploying production systems
• Generating documentation

• Apache ant
• Maven
• Make
• MSbuild (Visual Studio)

• 1. Compiler
• 2. Executable name
• 3. Source file
• 4. Source file
• 5 Library file

• 1. Target
• 2. Dependency
• 3. Dependency

• Properties
• Cleanup
• Create structure
• Compile code
• Create documentation
• Deploy system
• Default action

One level of abstraction higher

• Provides pre-defined targets for compiling, running JUnit tests and creating JARs
• Dynamically downloads java libraries and plugins from repos

Project object model

All inherit a super POM

• Configuring specific parts of the build phases
• e.g configure compiler plugin to use java 1.5

• Large projects have multiple POMs
• Project has a root POM
• All POMs inherit from a super POM

• Unique project identifier
• Project dependency

• Convention over configuration
• Default values already defined
• Only specify unconventional aspects

• All work in maven is done by plug ins
• Plugins can be made for any build task
• Plugins provide goals to be executed

mvn [pluin name]:[goal]

• A series of goals:
• 1. process-resources (download)
• 2. compile
• 3. process-test-resources
• 4. test-compile
• 5. test
• 6. package
• 7. install
• 8. deploy

• mvn [goalname]
• Runs all goals up to and including that one

Builds on both ant and maven

Convention over configuration

• Groovy based language
• Not XML

Suite of programming tools to help with cross-platform builds

• Autoconf
• Automake
• Libtool

• Make
• GCC
• pkg-cnfig

• Generates a configure script based on a configure.ac file
• Discovers what tools (compilers) are available

• Generates environment specific makefiles
• Uses a configure file (from autotools)
• Allows writing a makefile in a high level language

• Name of program
• List of source code files
• List of compiler flags
• List of linker flags

• Compile program
• Clean
• install in std dirs
• uninstall
• create tarball
• Test that tarball is self-sufficient

• Helps manage the creation of static and dynamic libraries across different platforms
• Not all platforms support dynamic or shared libraries

• A cross platform build system management tool
• Same functions as autotools

• Solution files for Windows
• Makefiles for unix

Integrate early, integrate often

Improves software quality by making quality control continuous through small pieces of effort applied frequently

• Code change
• Revision control
• Continuous integration
• Build Script
• Build report

• Bamboo
• Jenkins
• CruiseControl

Provide feedback as early as possible

• A development practice where developers integrate code into a shared repository frequently
• Several times a day