Including and ID and Parent ID in Powershell File Inventory - powershell

Question

I have a powershell script that performs and inventory of a fileshare. I want to know how to add ID to each line in the csv file and also a parent ID to line in the csv.
I am new to Powershell but worked out how to get the inventory script working.
Here is the code.
#Set-ExecutionPolicy Unrestricted
$SourcePath = "G:\My Drive"
$DestinationCSVPath = "e:\G Drive Inventory 20180611.csv" #Destination for Temp CSV File
$CSVColumnOrder = 'Path', 'IsDIR', 'Directory', 'FileCount', 'Parent', 'Name', 'CreationTime', 'LastAccessTime', 'LastWriteTime', 'Extension', 'BaseName', 'B'
#, 'Root', 'IsReadOnly', 'Attributes', 'Owner', 'AccessToString', 'Group' #, #'MD5', #'SHA1' #Order in which columns in CSV Output are ordered
#FOLDERS ONLY
#$SourcePathFileOutput = Get-ChildItem $SourcePath -Recurse | where {$_.PSIsContainer}
#FILES AND FOLDERS
$SourcePathFileOutput = Get-ChildItem $SourcePath -Recurse #| where {$_.PSIsContainer} #Uncomment for folders only
$HashOutput = ForEach ($file in $SourcePathFileOutput) {
Write-Output (New-Object -TypeName PSCustomObject -Property #{
Path = $file.FullName
IsDIR = $file.PSIsContainer
Directory = $File.DirectoryName
FileCount = (GCI $File.FullName -Recurse).Count
Parent = $file.Parent
Name = $File.Name
CreationTime = $File.CreationTime
LastAccessTime = $File.LastAccessTime
LastWriteTime = $File.LastWriteTime
Extension = $File.Extension
BaseName = $File.BaseName
B = $File.Length
#Root = $file.Root
#IsReadOnly = $file.IsReadOnly
#Attributes = $file.Attributes
#Owner = $acl.owner
#AccessToString = $acl.accesstostring
#Group = $acl.group
#MD5 = Get-FileHash $file.FullName -Algorithm MD5 | Select-Object -ExpandProperty Hash
#SHA1 = Get-FileHash $file.FullName -Algorithm SHA1 | Select-Object -ExpandProperty Hash
}) | Select-Object $CSVColumnOrder
}
$HashOutput | Export-Csv -NoTypeInformation -Path $DestinationCSVPath
I want to know how to add ID to each line in the csv file and also a parent ID to line in the csv.

Answer 1

try Something like this:
$ID=1
$SourcePath="c:\temp"
$SourcePathFileOutput=#()
#for have the parent dir
$SourcePathFileOutput += Get-Item $SourcePath | %{
$ParentPath=if ($_.PSIsContainer){$_.parent.FullName}else{$_.DirectoryName}
Add-Member -InputObject $_ -MemberType NoteProperty -Name "ID" -Value ($ID++)
Add-Member -InputObject $_ -MemberType NoteProperty -Name "PARENTPATH" -Value $ParentPath
$_
}
#for have all directory and file
$SourcePathFileOutput += Get-ChildItem $SourcePath -Recurse | %{
$ParentPath=if ($_.PSIsContainer){$_.parent.FullName}else{$_.DirectoryName}
Add-Member -InputObject $_ -MemberType NoteProperty -Name "ID" -Value ($ID++)
Add-Member -InputObject $_ -MemberType NoteProperty -Name "PARENTPATH" -Value $ParentPath
$_
}
#List dir for optimise
$DirOutput=$SourcePathFileOutput | where {$_.psiscontainer}
#for output result (add all properties you want)
$list=foreach ($Current in $SourcePathFileOutput)
{
$Result=[pscustomobject]#{
Path = $Current.FullName
PARENTPATH=$Current.PARENTPATH
ISDIR=$Current.psiscontainer
ID=$Current.ID
PARENTID=($DirOutput | where {$_.FullName -eq $Current.PARENTPATH}).ID
}
#Initialise parent root
if ($Result.PARENTID -eq $null) {$Result.PARENTID=0}
#send result on output
$Result
}
$list | Out-GridView

Answer 2

This should do what you want:
#Set-ExecutionPolicy Unrestricted
$SourcePath = "G:\My Drive"
$DestinationCSVPath = "e:\G Drive Inventory 20180611.csv" #Destination for Temp CSV File
$CSVColumnOrder = 'Path', 'IsDIR', 'Directory', 'FileCount', 'Parent', 'Name', 'CreationTime', 'LastAccessTime', 'LastWriteTime', 'Extension', 'BaseName', 'B','ID','ParentID'
#, 'Root', 'IsReadOnly', 'Attributes', 'Owner', 'AccessToString', 'Group' #, #'MD5', #'SHA1' #Order in which columns in CSV Output are ordered
#FOLDERS ONLY
#$SourcePathFileOutput = Get-ChildItem $SourcePath -Recurse | where {$_.PSIsContainer}
#FILES AND FOLDERS
$SourcePathFileOutput = Get-ChildItem $SourcePath -Recurse | Sort-Object Fullname #| where {$_.PSIsContainer} #Uncomment for folders only
$CurrentID = 1
$IDs = [ordered]#{}
$IDs.add(($SourcePathFileOutput[0].fullname | split-path),0)
$HashOutput = ForEach ($file in $SourcePathFileOutput) {
$IDs.add($file.fullname,$CurrentID)
Write-Output (New-Object -TypeName PSCustomObject -Property #{
ID = $CurrentID
ParentID = $IDs.$($file.fullname | split-path)
Path = $file.FullName
IsDIR = $file.PSIsContainer
Directory = $File.DirectoryName
FileCount = (GCI $File.FullName -Recurse).Count
Parent = $file.Parent
Name = $File.Name
CreationTime = $File.CreationTime
LastAccessTime = $File.LastAccessTime
LastWriteTime = $File.LastWriteTime
Extension = $File.Extension
BaseName = $File.BaseName
B = $File.Length
#Root = $file.Root
#IsReadOnly = $file.IsReadOnly
#Attributes = $file.Attributes
#Owner = $acl.owner
#AccessToString = $acl.accesstostring
#Group = $acl.group
#MD5 = Get-FileHash $file.FullName -Algorithm MD5 | Select-Object -ExpandProperty Hash
#SHA1 = Get-FileHash $file.FullName -Algorithm SHA1 | Select-Object -ExpandProperty Hash
}) | Select-Object $CSVColumnOrder
$CurrentID++
}
$HashOutput | Export-Csv -NoTypeInformation -Path $DestinationCSVPath
Explanation:
I piped $SourcePathFileOutput to Sort-Object because it is easiest to assign an ordered ID if things are sorted by their location in the directory tree.
$CurrentID starts at 1 because the first item in the loop is not the root parent. Your loop will increment this variable by 1 ($CurrentID++) at the end of each loop iteration so that the next file/directory will a new number. Since this code creates $CurrentID as an Int32 type, you will have issues if you have more than 2 billion files/directories. You will have to initialize it as a 64-bit type ($CurrentID = [long]1). However, I believe there can only be Int32 number of keys in a hash table, so a different strategy will need to be adopted if you have billions of files.
$IDs is a ordered hash table that tracks IDs for all files and directories. Each key in hash table is the path to the current item in the loop. The value is the ID assignment. This means you can access the ID using the syntax $IDs.path. After the initialization, I added the first entry with ID 0, which represents the root parent.
Inside of the loop, I created the ID property that just stores the current value of $CurrentID. I created 'ParentID', which looks up the parent directory inside of the $IDs hash table and returns that key's ID value.
I updated $CSVColumnOrder to have the ID and ParentID as columns.
You could have the ID scheme be slightly different if you do your initial sort differently. You don't have to increment by 1. You may have a requirement that you want directories to have smaller IDs than files and that will require more code (I did not see this requirement though).