Gradle :File Operations

Gradle :File Opertions 

https://www.safaribooksonline.com/library/view/gradle-beyond-the/9781449373801/ch01.html

Gradle: A trivial copy task configuration

task copyPoems(type: Copy) {
  from 'text-files'
  into 'build/poems'
}

Gradle: A copy task that copies all the poems except the one by Henley

task copyPoems(type: Copy) {
  from 'text-files'
  into 'build/poems'
  exclude '**/*henley*'
}

Gradle: A copy task that only copies Shakespeare and Shelley

task copyPoems(type: Copy) {
  from 'text-files'
  into 'build/poems'
  include '**/sh*.txt'
}

Gradle: A copy task taking files from more than one source directory

task complexCopy(type: Copy) {
  from('src/main/templates') {
    include '**/*.gtpl'
  }
  from('i18n')
  from('config') {
    exclude 'Development*.groovy'
  }
  into 'build/resources'
}

Gradle: A copy task mapping source directory structure onto a new destination structure

task complexCopy(type: Copy) {
  from('src/main/templates') {
    include '**/*.gtpl'
    into 'templates'
  }
  from('i18n')
  from('config') {
    exclude 'Development*.groovy'
    into 'config'
  }
  into 'build/resources'
}

Gradle: Renaming files using regular expressions

task rename(type: Copy) {
  from 'source'
  into 'dest'
  rename(/file-template-(\d+)/, 'production-file-$1.txt')
}

Gradle: Renaming files programmatically

task rename(type: Copy) {
  from 'source'
  into 'dest'
  rename { fileName ->
    "production-file${(fileName - 'file-template')}"
  }
}
 
Gradle: Copying a file with keyword expansion

versionId = '1.6'

task copyProductionConfig(type: Copy) {
  from 'source'
  include 'config.properties'
  into 'build/war/WEB-INF/config'
  expand([
    databaseHostname: 'db.company.com',
    version: versionId,
    buildNumber: (int)(Math.random() * 1000),
    date: new Date()
  ])
}