Moves a folder from a g suite folder to another. Useful when file is not owned and therefore can't be moved in the google drive web ui.

MoveGsuiteDirectoryRecursively.kt

package com.example.gsuite

import java.io.File
import java.io.FileNotFoundException

fun copyGsuiteDirectoryRecursively() {
  val originPrefix = "/Volumes/GoogleDrive/My Drive/origin"
  val targetPrefix = "/Volumes/GoogleDrive/Shared drives/destination"

  fun String.isIgnored() = this.endsWith("/Icon\r") || this.endsWith("/.DS_Store")

  // Files
  val count = File(originPrefix).walk().count()
  File(originPrefix).walk().forEachIndexed { index, file ->
    if (!file.isDirectory) {
      if (!file.path.isIgnored()) {
        val targetFile = File("$targetPrefix${file.path.toString().substringAfter(originPrefix)}")
        File(targetFile.parent).mkdirs()
        print("Copy $targetFile...")
        try {
          file.copyTo(targetFile, overwrite = true)
          print(" finished")

          if (!file.delete()) {
            println("ERROR: Could not delete ${file.path.replace("\r", "")}")
          }

        } catch (e: FileNotFoundException) {
          if (e.message?.contains("Operation not supported") == true &&
            (file.path.endsWith(".gdoc") || file.path.endsWith(".gform") || file.path.endsWith(".gslides") || file.path.endsWith(".gsheet"))
          ) {
            println(" skipped") // Don't delete skipped files
          } else {
            throw e
          }
        }
      } else {
        if (!file.delete()) {
          throw Exception("Could not delete ${file.path.replace("\r", "")}")
        }
      }
      println(" - ${(index * 1000 / count) / 10.0}%")
    }
  }

  // Delete empty folders
  println("--------")
  println("Delete empty folders...")
  File(originPrefix).walkBottomUp().forEach { file ->
    if (file.isDirectory && file.walk().all { it.path.isIgnored() || it.path == file.path }) {
      println("Delete folder ${file.path}")
      if (!file.delete()) {
        println("ERROR: Could not delete ${file.path.replace("\r", "")}")
      }
    }
  }

  println("--------")
  println("Remaining files: ${File(originPrefix).walk().count()}")
  File(originPrefix).walk().forEach { file ->
    if (!file.isDirectory) {
      println(file.path)
    }
  }

  println("--------")
  println("FIN")
}