Working with Gradle Build Scripts

1 Locating files

File xmlFile = new File('xml/input/sample.xml')
def inputXml = project.file(xmlFile)

2 Using file collections

ConfigurableFileCollection userFiles = files(new File('README'), new File('INSTALL'))

3 Working with file trees

def srcDir = fileTree('scr/main').include('**/*.java')

4 Copying files

task simpleCopy(type: Copy) {
    from 'src/xml'
    into 'definitions'
}

5 Renaming files

task copyAndRename(type: Copy) {
    from 'src'
    rename {
        String fileName -> 
        if (fileName.endsWith('txt')) {
            String origin = fileName
            String originWithoutExtension = original - '.txt'
            originalWithoutExtension + '.text'
        }
    }
    into 'dist'
}

rename '(.*).txt', '$1.text'
rename ~/^sample-(.*)/, '$1'

6 Archiving files

task archiveFiles(type: Zip) {
    from 'dist'
    into 'files'
    destinationDir = file("$buildDir/zips")
    archiveName = 'dist-files.zip'
}

task archiveFiles(type: Tar) {
    from 'dist'
    destinationDir = file("$buildDir/tarballs")

    baseName = 'dist-files'
    extension = 'tar.gz'

    compression = Compression.GZIP
}

7 Using Loggings

task logLevels << {
    logger.debug 'debug: Most verbose logging level.'
    logger.info 'info: Use for information messages.'
}

gradle --debug logLevels
gradle --info logLevels