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Rake Task Management Essentials

By : Andrey Koleshko

5 (4)

Rake Task Management Essentials

5 (4)

By: Andrey Koleshko

Overview of this book

Rake Task Management Essentials

Rake Task Management Essentials

Credits

Credits

About the Author

About the Author

Acknowledgements

Acknowledgements

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

The Software Task Management Tool – Rake

The Software Task Management Tool – Rake

Installing Rake

Introducing rake tasks

The command-line arguments

Using global Rakefiles to run tasks anywhere

Defining custom rake tasks

Task dependencies – prerequisites

The structure of a Rake project

The code conventions of Rake

Summary

Working with Files

Working with Files

Using file tasks to work with files

The characteristics of the file task dependencies

Creating a folder with the directory method

Using Rake's file utilities

A practical example of automatically generating a config file

Summary

Working with Rules

Working with Rules

Understanding the duplication of the file tasks

Using a rule to get rid of the duplicated file tasks

Detecting a source for the rule dynamically

Using a regular expression to match more tasks

Summary

Cleaning Up a Build

Cleaning Up a Build

Setting up a project

The cleaning tasks

Summary

Running Tasks in Parallel

Running Tasks in Parallel

Defining tasks with parallel prerequisites

Thread safety of multitasks

Multiple task definitions with a common prerequisite

Applying multitasks in practice

Summary

Debugging Rake Tasks

Debugging Rake Tasks

Using command-line arguments for debugging

Getting a dependency's resolution with --prereqs

Using the --rules option to trace the rule resolution

Using the Ruby approach to debug a Rake project

Summary

Integration with Rails

Integration with Rails

Introducing Rake's integration with Rails

Custom rake tasks in a Rails project

Recurrent running of tasks

Summary

Testing Rake Tasks

Testing Rake Tasks

The need for tests

Writing tests for rake tasks

Summary

Continuous Integration

Continuous Integration

Introducing Jenkins

Setting up Jenkins

Configuring Jenkins to run rake tasks

Summary

Relentless Automation

Relentless Automation

Examples of Rake being used by famous gems

Other examples of Sinatra using Rake

Thor – the next generation of Rake

Summary

Index

Index

Getting a dependency's resolution with --prereqs

Another useful option that only shows us the task dependency resolution and nothing more is -P or --prereqs. Unlike the --trace option, it doesn't execute the tasks, as shown in the following lines of command:

$ rake -P
rake task1
rake task2
    task1

The list contains the defined tasks and their dependencies with indentation. Take a look at the task1 text that is shifted in the last line. It is written after rake task2 and it means that task2 is dependent on task1.

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83

Tech Concepts

36

Programming languages

73

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