Continuous Integration

Continuous Integration

1. Features required

   • Developer
     • runs private builds
     • make commits
   • Version Control Repo
     • manage changes to source code and assets
     • single source point
   • CI Server
     • polls from repo
     • runs integration build after changes
     • schedule builds
   • Build script
     • single or a set
     • automate the processes for build
   • Feedback mechanism
     • email
     • Short Message Service SMS
     • Really Simple Syndication
     • notificar
   • Integration Build Machine

2. Build

   • putting source code together and verify that works
   • Processes
     • 1 Compile
     • 2 Testing
     • 3 Inspection
     • 4 Deployment

3. Processes

   • Source code compilation
     • create exectutable code
     • interpreted/dinamic lang
       • strict checking
   • DB Integration
     • use version control repo
     • scripts
       • DDL
       • DML
   • Testing
     • categories of tests
       • unit
       • compontent
       • load/performance
       • security
       • system
   • Inspection
     • code inspections
       • to enhace code quality
       • based on rules
       • coding standards
   • Deployment
     • deployable code anytime
   • Docum and Feedback
     • speed feedback

4. Value of CI

   • Reduce risks
     • RISKS
       • Lack of deployable software
       • Late discovery of defects
         • 1 write test for the code
         • 2 run tests from build script
         • 3 run tests continuously
       • Lack of project visisbility
         • feedback mechanism
         • automated documentation tool
       • Low quality software
         • automated static code inspections
   • Reduce repetitive manual process
   • Better project visibility
   • Greater confidence in product
   • Generate deployable software

5. Practices

   • Commit frequently
     • at least 1 per day
   • Dont commit broken code
   • Fix broken builds inmediatly
   • Write automated tests
   • Tests/inspections MUST PASS
   • Run private build
   • Avoid getting broken code

6. 4 Steps to CI

   • I Build So Consistently
   • Identify
     • process to automate
   • Build
     • automatization scripts
   • Share
     • in repo
   • Continuous
     • update changes