• Build Automation Tools
  • Gradle
    • Dependency Management
    • Task Management
    • Task dependencies
• Continuous Integration
• Code Analysis
• Code Metrics
• Development Methodologies
  • Agile
  • XP
  • Scrum
  • KanBan

Build Automation Tools

Gradle

Dependency Management

• Dependency scope or Gradle Configuration
  • compile
  • testCompile
  • runtime
  • testRuntime
  • archives
  • default

New scopes/configurations could be introduced by plug-ins. E.g, ‘groovy’ plugin introduces ‘groovy’ configuration.

Task Management

1. task myTask //declaration only without configuration or action
2. task myTask { configure closure }
3. task myType << { task action }
4. task myTask(type: SomeType)
5. task myTask(type: SomeType) { configure closure }

• How to create a simple task?

task task1 << { println 'I'm a simple task}

Executing gradle task1 prints Hello, world

• How to create a simple task with additive blocks

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task task2 // task declaration only
task2 << { println 'Hello,'}
task2 << { println ' world'}

Executing gradle -q task2 prints Hello, world

• How to create a simple task with configuration?

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task task3
task3 << { println 'Hello,'}
task3 << { println ' world'}
task3 { println 'Closure with << is configuration for a task which is run during configuration lifecycle phase which runs before execution phase'}

Executing: gradle -q task4 prints

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Closure with << is configuration for a task which is run during configuration lifecycle phase which runs before execution phase
:task3
Hello, world

• How to create a simple task with additive configuration blocks?

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task task4
task4 << { println 'Hello,'}
task4 << { println ' world'}
task4 { println 'Config1'}
task4 { println 'Config2'}

Executing gradle task4 prints

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Config1
Config2
:task4
Hello,
 world

Task dependencies

• If doFirst() and doLast() methods are defined in a task, then it is executed before and after the task execution.

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task task4
task4 << { println 'world'}
task4.doFirst { print 'Hello, '}
task4.doFirst { println 'Good morning'} //repeated calls to doFirst() is additive
task4.doLast {println 'Good bye'}
task4.doLast {println 'Shutting down'} //repeated calls to doLast() is additive

Result:

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:task4
Good morning
Hello, world
Good bye
Shutting down

• Calling doFirst() and doLast() methods from configuration block

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task task4
task4 << { println 'world'}
task4 {
	doFirst {
		println 'Good morning'
		print 'Hello, '
	}
	doLast {
		println 'Good bye'
		println 'Shutting down'
	}

Result:

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:task4
Good morning
Hello, world
Good bye
Shutting down

• How to disable a task? - task4.enabled = false
• How to find the path of a task? task mytask << { println "Path of this task is ${path}" } Results: Prints Path of this task is :mytask

Continuous Integration

• Hudson / Jenkins
• TeamCity
• CruiseControl
• Ivy

Code Analysis

• Emma
• Corbetura/Clover
• Fortify
• JDepend
• FindBugs
• SONAR

Code Metrics

• Novel way to visualize whole project, package structure & lines of code - http://redotheweb.com/CodeFlower/
• Cyclomatic Complexity -
  • http://www.onjava.com/lpt/a/4917
  • http://c2.com/cgi/wiki?CyclomaticComplexityMetric
  • http://www.guru99.com/cyclomatic-complexity.html

Development Methodologies

http://en.wikipedia.org/wiki/List_of_software_development_philosophies

Agile

XP

Scrum

• Product Backlogs
• Spring Backlogs
• 2 week sprints
• Meetings
  • Biweekly Sprint Planning
  • Daily Scrum calls (max 15 mins)
  • Sprint review meeting
  • Retrospectives (at the end of the sprint)
  • Backlog refinement (when needed)
• Roles
  • Product Owner
  • Scrum Master
  • Scrum Team
• Charts
  • Burndown chart @ sprint-level
  • Burndown chart @ release and product-level

KanBan