Gradle 打印文件夹中的目录 - X 级别

Question

我在构建文件夹下有以下文件夹结构(您在 Gradle 构建期间获得):

CDROM/disk1CDROM/disk1/disk1file1a.txtCDROM/disk1/disk1file1b.txtCDROM/disk2/disk2file2a.txtCDROM/disk2/disk2file2btxtCDROM/disk2/disk2folder2xCDROM/disk2/disk2folder2yCDROM/disk3CDROM/disk3/disk3CDROM/disk3/disk33CDROM/disk3/disk33/disk3CDROM/folder1CDROM/file1.txt

How can I tell Gradle to show me the following:

1. Print only the top level / direct child folders (only) in folder "CDROM"
   i.e. it should print only disk1, disk2, disk3 and folder1

2. Print only the top level / direct child folders (only) which has a pattern of disk[0-9] i.e. diskX where X is a number.
   i.e. it should print only disk1, disk2 and disk3

The following will do it, but I think there should be an efficient way to achieve the same and where one can define patterns and DON'T have to use "IF" statements that I have used below.

FileTree dirs = fileTree (dir: "$buildDir/CDROM", include: "disk*/**")

        dirs.visit { FileVisitDetails fd ->

                if (fd.directory && fd.name.startsWith('disk')){

                        println "------  $buildDir/CDROM_Installers/${fd.name}   ---------------"

                }

        }

Answer 1

如果您指的是CDROM的直接子级，那么顶层应该很简单:

new File("${buildDir}/CDROM").eachDir{ if(it.name ==~/disk.*/) println it}

如果您想更多地控制深度和其他东西，那么您可以尝试以下代码的变体:

new File("${buildDir}/CDROM").traverse( [maxDepth: 2, filter: ~/.*disk\d/, 
                                        type: groovy.io.FileType.DIRECTORIES]){
   println it // or do whatever
}

参见traverse了解更多详情。