Small Issues with powershell Script that loops over folders in Sharepoint - powershell

Question

This Script loops over every folder in powershell and checks if the folder has the wildcard text and then outputs the file location towards the csv.
The error i get is : Export-Csv : Cannot bind argument to parameter 'InputObject' because it is null.
Also some of the folders containing the wildcard. Mostly in level 3 - 4 - 5 it does not detect even tough in the output i see a folder containing the word.
Thanks in advance !
Import-Module PnP.PowerShell
#Config Parameters
$SiteURL= "*******/sites/Archief"
$Folder = "Gedeelde Documenten"
$Pagesize = "500"
Connect-PnPOnline -Url $SiteURL -Interactive ### Change to your specific site ###
#Output path
$outputPath = "C:\users\$env:USERNAME\Desktop\test.csv"
Function GetFolders($folderUrl)
{
$folderColl=Get-PnPFolderItem -FolderSiteRelativeUrl $folderUrl -ItemType Folder
# Loop through the folders
foreach($folder in $folderColl)
{
$newFolderURL= $folderUrl+"/"+$folder.Name
if ($newFolderURL -cnotlike "*archief*"){
write-host -ForegroundColor Green $folder.Name " - " $newFolderURL
$DocLibs = Get-PnPList | Where-Object {$_.BaseTemplate -eq 101}
#Loop thru each document library & folders
$results = #()
foreach ($DocLib in $DocLibs) {
if ($DocLib -cnotlike "*archief*"){
$AllItems = Get-PnPListItem -List $DocLib -Fields "FileRef", "File_x0020_Type", "FileLeafRef" -PageSize 500
#Loop through each item
foreach ($Item in $AllItems) {
if ($Item["FileRef"] -cnotlike "*archief*" -or $Item["FileLeafRef"] -cnotlike "*archief*" -and ($Item["File_x0020_Type"])){
Write-Host "File found. Path:" $Item["FileRef"] -ForegroundColor Green
#Creating new object to export in .csv file
$results += New-Object PSObject -Property #{
Path = $Item["FileRef"]
FileName = $Item["FileLeafRef"]
FileExtension = $Item["File_x0020_Type"]
}
}
}
}
}
GetFolders($newFolderURL)
}
}
}
$results | Export-Csv -Path $outputPath -NoTypeInformation
GetFolders($folder)

Answer 1

There are a few things wrong with your code. First of all, you first output the results to a CSV and after that call the function. Also you loop through the folders, and constantly create a new results object which is never outputted. lastly you call the function itself from within the function. You call GetFolders in a foreach loop within the GetFolders function.
There are a few ways to resolve this, for instance let the CSV be filled from inside the function and append new data.
Import-Module PnP.PowerShell
#Config Parameters
$SiteURL= "*******/sites/Archief"
$Folder = "Gedeelde Documenten"
$Pagesize = "500"
Connect-PnPOnline -Url $SiteURL -Interactive ### Change to your specific site ###
#Output path
$outputPath = "C:\users\$env:USERNAME\Desktop\test.csv"
Function GetFolders{
[CmdletBinding()]
param(
[Parameter(Mandatory=$true)]
$FolderUrl,
[Parameter(Mandatory=$true)]
$OutputPath
)
$folderColl=Get-PnPFolderItem -FolderSiteRelativeUrl $folderUrl -ItemType Folder
# Loop through the folders
foreach($folder in $folderColl){
$newFolderURL= $folderUrl+"/"+$folder.Name
if ($newFolderURL -cnotlike "*archief*"){
write-host -ForegroundColor Green $folder.Name " - " $newFolderURL
$DocLibs = Get-PnPList | Where-Object {$_.BaseTemplate -eq 101}
#Loop thru each document library & folders
$results = #()
foreach($DocLib in $DocLibs){
if($DocLib -cnotlike "*archief*"){
$AllItems = Get-PnPListItem -List $DocLib -Fields "FileRef", "File_x0020_Type", "FileLeafRef" -PageSize 500
#Loop through each item
foreach ($Item in $AllItems) {
if ($Item["FileRef"] -cnotlike "*archief*" -or $Item["FileLeafRef"] -cnotlike "*archief*" -and ($Item["File_x0020_Type"])){
Write-Host "File found. Path:" $Item["FileRef"] -ForegroundColor Green
#Creating new object to export in .csv file
$results += New-Object PSObject -Property #{
Path = $Item["FileRef"]
FileName = $Item["FileLeafRef"]
FileExtension = $Item["File_x0020_Type"]
}
}
}
}
}
$results | Export-Csv -Path $outputPath -NoTypeInformation -Append
GetFolders($newFolderURL)
}
}
}
GetFolders -FolderUrl $Folder -OutputPath $outputPath
As you can see the output path is added to the function and the results are pushed to the CSV after every loop.
You could also let the results be created within the function and then returned to the initial call:
Import-Module PnP.PowerShell
#Config Parameters
$SiteURL= "*******/sites/Archief"
$Folder = "Gedeelde Documenten"
$Pagesize = "500"
Connect-PnPOnline -Url $SiteURL -Interactive ### Change to your specific site ###
#Output path
$outputPath = "C:\users\$env:USERNAME\Desktop\test.csv"
Function GetFolders{
[CmdletBinding()]
param(
[Parameter(Mandatory=$true)]
$FolderUrl
)
$folderColl=Get-PnPFolderItem -FolderSiteRelativeUrl $folderUrl -ItemType Folder
# Loop through the folders
$results = #()
foreach($folder in $folderColl){
$newFolderURL= $folderUrl+"/"+$folder.Name
if ($newFolderURL -cnotlike "*archief*"){
write-host -ForegroundColor Green $folder.Name " - " $newFolderURL
$DocLibs = Get-PnPList | Where-Object {$_.BaseTemplate -eq 101}
#Loop thru each document library & folders
foreach($DocLib in $DocLibs){
if($DocLib -cnotlike "*archief*"){
$AllItems = Get-PnPListItem -List $DocLib -Fields "FileRef", "File_x0020_Type", "FileLeafRef" -PageSize 500
#Loop through each item
foreach ($Item in $AllItems) {
if ($Item["FileRef"] -cnotlike "*archief*" -or $Item["FileLeafRef"] -cnotlike "*archief*" -and ($Item["File_x0020_Type"])){
Write-Host "File found. Path:" $Item["FileRef"] -ForegroundColor Green
#Creating new object to export in .csv file
$results += New-Object PSObject -Property #{
Path = $Item["FileRef"]
FileName = $Item["FileLeafRef"]
FileExtension = $Item["File_x0020_Type"]
}
}
}
}
}
GetFolders($newFolderURL)
}
}
return $results
}
GetFolders -FolderUrl $Folder | Export-Csv -Path $outputPath -NoTypeInformation
I would also recommend using '-Delimiter ";"' in your Export-CSV so that when you open the file in Excel it is automatically sorted.