file

[!NOTE|label:references:]

• Class File
• Class FilenameUtils)
  • FilenameUtils.getName(String)
• Package java.nio.file
• Class Paths VS. Interface Path)

  // https://stackoverflow.com/a/49019436/2940319
  assert sun.nio.fs.UnixPath == java.nio.file.Paths.get( '/a/b/c/d.txt' ).getClass()
  java.nio.file.Path path = java.nio.file.Paths.get( '/a/b/c/d.txt' )
  

  • Path getFileName() method in Java with Examples
• Java Files - java.nio.file.Files Class

• dirname

  // via File
  assert '/a/b/c' == ( new File('/a/b/c/d.txt') ).getParentFile().toString()
  assert '/a/b/c' == ( new File('/a/b/c/d.txt') ).getParent()
  assert '/a/b/c' == ( new File('/a/b/c/d.txt') ).parent
  
  // via java.nio.file.Paths
  assert '/a/b/c' == java.nio.file.Paths.get( '/a/b/c/d.txt' ).getParent().toString()
  assert '/a/b/c' == jhava.nio.file.Paths.get( '/a/b/c/d.txt' ).parent.toString()
  

• basename

  // via File
  assert 'd.txt' == (new File('/a/b/c/d.txt')).getName()
  assert 'd.txt' == (new File('/a/b/c/d.txt')).name
  
  // via java.nio.file.Paths
  assert 'd.txt' == java.nio.file.Paths.get( '/a/b/c/d.txt' ).getFileName().toString()
  assert 'd.txt' == java.nio.file.Paths.get( '/a/b/c/d.txt' ).fileName.toString()
  

• isDirectory || isFile

  assert true  == ( new File('/Users/marslo/.vimrc') ).isFile()
  assert false == ( new File('/Users/marslo/.vimrc') ).isDirectory()
  

traverse

groovy.io.FileType.FILES

[!NOTE|label:references:]

• * iMarslo: jenkinsfile libs
• Groovy Goodness: Traversing a Directory | Groovy Goodness: Traversing a Directory
• Recursive listing of all files matching a certain filetype in Groovy

  import static groovy.io.FileType.FILES
  

• Get a list of all the files in a directory (recursive)

#!/usr/bin/env groovy

import groovy.transform.Field

String pathToFolder = '/Users/marslo/.ssh'
new File(pathToFolder).traverse(type: groovy.io.FileType.FILES) {
  println it
}

// vim:tabstop=2:softtabstop=2:shiftwidth=2:expandtab:filetype=Groovy

jenkins libs

import groovy.io.FileType
import static groovy.io.FileType.*

@NonCPS
def traverseInPath( String path, String filetype, Integer depth = 1 ) {
  List<String> names = []
  if ( ! [ 'files', 'directories', 'any' ].contains(filetype) ) {
      currentBuild.description = "`filetype` support only ${[ 'files', 'directories', 'any' ].join(',')} !"
      currentBuild.result = 'NOT_BUILT'
      currentBuild.getRawBuild().getExecutor().interrupt(Result.NOT_BUILT)
  }

  Closure sortByTypeThenName = { a, b ->
    a.isFile() != b.isFile() ? a.isFile() <=> b.isFile() : a.name.toLowerCase() <=> b.name.toLowerCase()
  }
  new File(path).traverse(
    type     : FileType.valueOf( filetype.toUpperCase() ),
    maxDepth : depth,
    sort     : sortByTypeThenName
  ) {
    names << it
  }
  return names
}

• jenkinsfile

  String path = '/mnt/to/path/1'
  String path2 = '/mnt/to/path/2'
  
  node ( NODE_NAME ) {
    println ( ">> traverse all FILES/DIRECTORIES in ${path} in maxDepth 0 : " )
    println traverseInPath( path, 'any', 0 ).join('\n')
  
    println ( ">> traverse all FILES/DIRECTORIES in ${path} in maxDepth 1 : " )
    println traverseInPath( path, 'any', 1 ).join('\n')
  
    println ( ">> traverse all FILES in ${path} in maxDepth 2 : " )
    println traverseInPath( path, 'files', 2 ).join('\n')
  
    println ( ">> traverse all FILES in ${path} in maxDepth 3 : " )
    println traverseInPath( path, 'files', 3 ).join('\n')
  }