Powershell Function Copy Files - powershell

Question

I´m facing to an issue that i can´t figure it out, how can i solve.
Basically i´ve an function that copy files from one directory to another directory, and rename it, if they already exists.
In the mean while, if any file with case sensitive name, it don´t copy it at all.
example:
TEXT.xml
text.xml
It just copy one of them. i need to copy both files.
Now, is the Rename-Item or the Copy-Item, that can´t deal with this case sensitive? Any idea how can i solve this?
Thanks for any help
My code:
Function Copy-File {
[CmdletBinding()]
param(
[Parameter(Mandatory = $true, Position = 0)]
[string]$Origin,
[Parameter(Mandatory = $true, Position = 1)]
[string]$Destination
)
# check if a file with that name already exists within the destination
$fileName = Join-Path $Destination ([System.IO.Path]::GetFileName($Origin))
if (Test-Path $fileName -PathType Leaf){
$baseName = [System.IO.Path]::GetFileNameWithoutExtension($Origin)
$extension = [System.IO.Path]::GetExtension($Origin) # this includes the dot
$allFiles = Get-ChildItem $Destination | Where-Object {$_.PSIsContainer -eq $false} | Foreach-Object {$_.Name}
$newName = $baseName + $extension
$count = 1
while ($allFiles -contains $newName) {
$newName = [string]::Format("{0}({1}){2}", $baseName, $count.ToString(), $extension)
$count++
}
# rename the file already in the destination folder
# Write-Verbose -Message "Renaming file '$fileName' to '$newName'"
Rename-Item $fileName -NewName $newName
}
#Write-Verbose -Message "Moving file '$Origin' to folder '$Destination'"
Copy-Item $Origin $Destination
}

Answer 1

All of what you are after here is just doing this...
(always use validation testing for all destructive commands/code --- (Delete/Rename/Modify/Update/Move))
Clear-Host
$SourceFiles = 'D:\Temp\Source'
$Destination = 'D:\Temp\Destination'
$Counter = 0
Get-ChildItem -Path $SourceFiles |
ForEach{
Try
{
If(Test-Path -Path $Destination\$PSItem)
{
$Counter++
Write-Warning -Message "$($PSItem.Name) already exits. Renaming destination file."
Rename-Item -Path $Destination\$PSItem -NewName "$($PSItem.Basename)_$Counter$($PSitem.Extension)" -WhatIf
# Copy-Item -Path $PSItem.FullName -Destination $Destination -WhatIf
}
Else
{
Write-Verbose -Message "$($PSItem.Name) does not exist. Copying file." -Verbose
Copy-Item -Path $PSItem.FullName -Destination $Destination -WhatIf
}
}
Catch {$PSItem.Exception.Message}
}
# Results
<#
VERBOSE: 5 Free Software You'll Wish You Knew Earlier! 2019 - YouTube.url does not exist. Copying file.
What if: Performing the operation "Copy File" on target "Item: D:\Temp\Source\5 Free Software You'll Wish You Knew Earlier! 2019 - YouTube.url Destination: D:\Temp\Destination\5 Free Software You'll Wish You Knew Earlier! 2019 - YouTube.url".
WARNING: audiolengthCLEAN.csv already exits. Renaming destination file.
What if: Performing the operation "Rename File" on target "Item: D:\Temp\Destination\audiolengthCLEAN.csv Destination: D:\Temp\Destination\audiolengthCLEAN_2.csv".
...
#>
Update as per your function question.
Function Sync-FileArchive
{
[CmdletBinding(SupportsShouldProcess)]
[Alias('sfa')]
Param
(
[Parameter(Mandatory = $true, Position = 0)]
[string]$SourceFiles,
[Parameter(Mandatory = $true, Position = 1)]
[string]$Destination
)
$Counter = 0
Get-ChildItem -Path $SourceFiles |
ForEach{
Try
{
If(Test-Path -Path $Destination\$PSItem)
{
$Counter++
Write-Warning -Message "$($PSItem.Name) already exits. Renaming destination file."
Rename-Item -Path $Destination\$PSItem -NewName "$($PSItem.Basename)_$Counter$($PSitem.Extension)" -WhatIf
}
Else
{
Write-Verbose -Message "$($PSItem.Name) does not exist. Copying file." -Verbose
Copy-Item -Path $PSItem.FullName -Destination $Destination
}
}
Catch {$PSItem.Exception.Message}
}
}
# Example1 - Remove the -WhatIf to fully execute.
Sync-FileArchive -SourceFiles 'D:\Temp\Source' -Destination 'D:\Temp\Destination' -WhatIf
# Example2
sfa 'D:\Temp\Source' 'D:\Temp\Destination' -WhatIf