1. File Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copy Task
Transforming Directory Structure Renaming Files During Copy
Filtering and Transforming Files Keyword Expansion
Filtering Line by Line Filtering File by File
The File Methods file()
1
1 3 3 4 4 6 8 9 9
files() 11
fileTree() 12 The FileCollection Interface 12 Converting to a Set 14 Converting to a Path String 14 Module Dependencies as FileCollections 15 Adding and Subtracting FileCollections 16 SourceSets as FileCollections 17 Lazy Files 18 Conclusion 19
2. Custom Plug-Ins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Plug-In Philosophy 21 The Plug-In API 22 The Example Plug-In 22 Setup 23 Sketching Out Your Plug-In 24
Table of Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
iii
Custom Liquibase Tasks 24 Applying Yourself 25 Extensions 26
Packaging a Plug-In 31 Conclusion 33
3. Build Hooks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
The Gradle Lifecycle: A Review 35 Advising the Build Graph 36 Advising Project Evaluation 36
Global Project Loading and Evaluation Hooks 38
Build Finished 39 Rules 41 Creating a Rule 42 Dealing with Imperative Rule Code 43 Generalizing Rules Beyond Tasks 45 Conclusion 46
4. Dependency Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
What Is Dependency Management? 47 Dependency Concepts 48 Configurations 49 Module Dependencies 51 Dynamic Versions 53 File Dependencies 53 Project Dependencies 54 Internal Dependencies 55 Repositories: Dependency Resolution 56 Maven Repositories 56 Ivy 59 Repository Credentials 60 Static Dependencies 61 Buildscript Dependencies 63 Dependency Caching 64 Configuring Resolution Strategy 66 Failing on Version Conflict 66 Forcing Versions 66 Cache Expiration 67 Conclusion 67
Afterword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
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