在 Google Apps 脚本中，我如何获取所有子文件夹和所有子子文件夹以及所有子子子文件夹等？

我正在尝试重命名指定文件夹中的每个文件以及所有子文件夹中的所有文件，但我不知道如何执行此操作。到目前为止，我有这个脚本，可以根据给定的 ID 重命名文件夹中的每个文件，但我需要执行所有子文件夹的操作。

function renameFilesInFolder(folderID) {
  var folder = DriveApp.getFolderById(folderID)
  var files = folder.getFiles(),
      fileNames = []
  

  while(files.hasNext()){
    var file = files.next()
    var oldFileName = file.getName()
    var checkIfMatch = oldFileName.substring(oldFileName.length - 3);
    var newFileName = ""
    if (checkIfMatch=="OBS"){
      newFileName = oldFileName
    } else {
      newFileName =oldFileName+"_OBS"
    }
    file.setName(newFileName)
    Logger.log(newFileName)
  }
}

这将通过文件夹递归将它们写入电子表格。

var level=0;
function getFnF(folder) {
  var folder= folder || DriveApp.getRootFolder();
  var ss=SpreadsheetApp.getActive();
  var sh=ss.getSheetByName('FilesAndFolders')
  var files=folder.getFiles();
  while(files.hasNext()) {
    var file=files.next();
    var firg=sh.getRange(sh.getLastRow() + 1,level + 1);
    firg.setValue(Utilities.formatString('File: %s', file.getName()));
  }
  var subfolders=folder.getFolders() 
  while(subfolders.hasNext()) {
    var subfolder=subfolders.next();
    var forg=sh.getRange(sh.getLastRow() + 1,level + 1);
    forg.setValue(Utilities.formatString('Fldr: %s', subfolder.getName()));
    level++;
    getFnF(subfolder);
  }
  level--;
}

这确实有点快

function getFnF1(folder = DriveApp.getRootFolder()) {
  let tree = JSON.parse(PropertiesService.getScriptProperties().getProperty('FnF'));
  //Logger.log(JSON.stringify(tree));
  if (tree.level < level) {
    tree.level = level;
    PropertiesService.getScriptProperties().setProperty('FnF', JSON.stringify(tree));
  }
  const files = folder.getFiles();
  let row = Array.from([...Array(level).keys()], ((x, i) => { if (i == level - 1) { x = folder.getName(); } else { x = ''; } return x; }));
  tree.txt.push(row);
  row = Array.from([...Array(level).keys()], ((x, i) => { if (i == level - 1) { x = 'bold'; } else { x = 'normal'; } return x; }));
  tree.fwt.push(row);
  PropertiesService.getScriptProperties().setProperty('FnF', JSON.stringify(tree));
  if (files.hasNext()) {
    let row = Array.from([...Array(level).keys()], ((x, i) => { if (i == level - 1) { x = 'Files:'; } else { x = ''; } return x; }));
    tree.txt.push(row);
    tree.fwt.push(['normal']);
    PropertiesService.getScriptProperties().setProperty('FnF', JSON.stringify(tree));
  }
  while (files.hasNext()) {
    let file = files.next();
    let row = Array.from([...Array(level + 1).keys()], ((x, i) => { if (i == level) { x = file.getName(); } else { x = ''; } return x; }));
    tree.txt.push(row);
    tree.fwt.push(['normal']);
    PropertiesService.getScriptProperties().setProperty('FnF', JSON.stringify(tree));
  }
  const subfolders = folder.getFolders()
  while (subfolders.hasNext()) {
    let subfolder = subfolders.next();
    level++;
    getFnF1(subfolder);
  }
  level--;
}

function getFilesAndFolders1() {
  const fldr = DriveApp.getFolderById(gobj.globals.projectsfolderid);
  const ss = SpreadsheetApp.getActive();
  ss.toast("Entry");
  const sh = ss.getSheetByName('Sheet1');
  sh.clearContents();
  SpreadsheetApp.flush();
  PropertiesService.getScriptProperties().setProperty('FnF', JSON.stringify({ txt: [], fwt: [], level: 0 }));
  getFnF1(fldr);
  //Logger.log(PropertiesService.getScriptProperties().getProperty('FnF'));
  let tree = JSON.parse(PropertiesService.getScriptProperties().getProperty('FnF'));
  const l = tree.level + 1
  tree.txt.forEach(r => {
    if (r.length < l) {
      //Array.from(Array(l - r.length).keys()).forEach(e => r.push(''));
      r.splice(r.length,0,...Array(l-r.length).fill(''));
    }
  });
  tree.fwt.forEach(r => {
    if (r.length < l) {
      //Array.from(Array(l - r.length).keys()).forEach(e => r.push('normal'));
      r.splice(r.length,0,...Array(l-r.length).fill('normal'));
    }
  });
  //Logger.log(JSON.stringify(tree));
  sh.getRange(1, 1, tree.txt.length, tree.level + 1).setValues(tree.txt);
  sh.getRange(1, 1, tree.fwt.length, tree.level + 1).setFontWeights(tree.fwt);
  PropertiesService.getScriptProperties().deleteProperty('FnF');
  ss.toast("EOF");
}