Groovy - 07 - Manipulación de archivos

read-files-and-directories.groovy

File file = new File('your-dir-here')

def fileNames = []

file.eachFile {
  if(it.isFile()) {
      fileNames << it.name
  }
}


def directories = file.list() - fileNames

println "Files: $fileNames"
println "Directories: $directories"

read-files-regex-and-type.groovy

import groovy.io.FileType

File directory = new File('your-dir-here')
String regex = /.*\.groovy/

List<String> fileNames = []
List<String> dirNames = []

directory.eachFileMatch(~regex) { file ->
  fileNames << file.name
}

directory.eachFile(FileType.DIRECTORIES) { dir ->
  dirNames << dir.name
}

println "Files:  $fileNames"
println "Directories:  $dirNames"

read-files-regex-contains-an-specific-word-verification.groovy

File rfc = new File('path-of-rfc-file.txt')
List lines = [1,2,3,4]  // the line numbers

String[] rfcLines = rfc as String[]

lines.each { line ->
  println "$line - ${rfcLines[line]}"
}

read-files-regex-contains-an-specific-word.groovy

File dir = new File('your-dir-here')
String regex = /.*\.txt/
String word = "word"

dir.eachFileMatch(~regex) { file ->
  int count = 0
  List lineNumbers = []
  file.eachLine { line ->
     if( line.contains(word) ) {
        lineNumbers << count
     }
     count++
  }
  
  if(lineNumbers) {
     println "File: ${file.name} contains [$word] at lines $lineNumbers"
  }
}