Copy Selected Extensions, and Directory Structure Only

Copy-StrictedFilterFileWithDirectoryStructure.ps1

<#
# Copy "All Directory Structure" and "File" which Extension type is .bat
Copy d:\GitHub\valentia -Destination d:\fuga -Force -Recurse -Filter "*.bat"

# Copy "All Directory Structure" and "File" which Extension type is .md
Copy d:\GitHub\valentia -Destination d:\fuga -Force -Recurse -Filter "*.md"

# If you want to exclude specific file to copy
Get-ChildItem -Path $Destination -Recurse -File | where Name -in Readme_J.md | Remove-Item -Recurse
 
# search Folder which include file
$hoge = ls d:\fuga -Recurse -Directory | where {$_.GetFiles()}

# Remove All Empty (none file exist) folders
ls d:\fuga -Recurse -Exclude $hoge -Directory | Remove-Item -Recurse
#>

function Copy-StrictedFilterFileWithDirectoryStructure
{
    [CmdletBinding()]
    param
    (
        [parameter(
            mandatory = 1,
            position  = 0,
            ValueFromPipeline = 1,
            ValueFromPipelineByPropertyName = 1)]
        [string]
        $Path,
 
        [parameter(
            mandatory = 1,
            position  = 1,
            ValueFromPipelineByPropertyName = 1)]
        [string]
        $Destination,
 
        [parameter(
            mandatory = 1,
            position  = 2,
            ValueFromPipelineByPropertyName = 1)]
        [string[]]
        $Targets,
 
        [parameter(
            mandatory = 0,
            position  = 3,
            ValueFromPipelineByPropertyName = 1)]
        [string[]]
        $Excludes
    )
 
    begin
    {
        $list = New-Object 'System.Collections.Generic.List[String]'
    }

    process
    {
        Foreach ($target in $Targets)
        {
            # Copy "All Directory Structure" and "File" which Extension type is $ex
            Copy-Item -Path $Path -Destination $Destination -Force -Recurse -Filter $target
        }
    }
 
    end
    {
        # Remove -Exclude Item
        Foreach ($exclude in $Excludes)
        {
            Get-ChildItem -Path $Destination -Recurse -File | where Name -like $exclude | Remove-Item
        }
 
        # search Folder which include file
        $allFolder = Get-ChildItem $Destination -Recurse -Directory
        $containsFile = $allFolder | where {$_.GetFiles()}
        $containsFile.FullName `
        | %{
            $fileContains = $_
            $result = $allFolder.FullName `
            | where {$_ -notin $list} `
            | where {
                $shortPath = $_
                $fileContains -like "$shortPath*"
            }
            $result | %{$list.Add($_)}
        }
        $folderToKeep = $list | sort -Unique

        # Remove All Empty (none file exist) folders
        Get-ChildItem -Path $Destination -Recurse -Directory | where fullName -notin $folderToKeep | Remove-Item -Recurse
    }
}

Copy-StrictedFilterFileWithDirectoryStructure -Path d:\GitHub\valentia -Destination D:\fuga -Target *.bat, *.md -Exclude Readme_J.md

# Sample
# Copy-StrictedFilterFileWithDirectoryStructure -Path D:\GitHub\valentia -Destination D:\fuga -Targets *.bat, *.md

# Sample : -Exlude item will not exit in copied folder
# Copy-StrictedFilterFileWithDirectoryStructure -Path d:\GitHub\valentia -Destination D:\fuga -Targets *.bat, *.md -Excludes Readme*.md

Exclude Sample

before begin

Empty

PS D:\GitHub\valentia> ls d:\fuga -Recurse
PS D:\GitHub\valentia>

after

PS D:\GitHub\valentia> ls d:\fuga -Recurse

Result

-Exclud Readme_J.md makes file removed from destination.

    Directory: D:\fuga


Mode         LastWriteTime Length Name    
----         ------------- ------ ----    
d---- 2014/08/08      1:46        valentia


    Directory: D:\fuga\valentia


Mode         LastWriteTime Length Name             
----         ------------- ------ ----             
d---- 2014/08/08      1:46        valentia         
-a--- 2014/05/16      8:07   2078 README.md        
-a--- 2014/07/31     15:20  17960 VersionHistory.md


    Directory: D:\fuga\valentia\valentia


Mode         LastWriteTime Length Name     
----         ------------- ------ ----     
d---- 2014/08/08      1:46        example  
d---- 2014/08/08      1:46        functions
d---- 2014/08/08      1:41        Tools    


    Directory: D:\fuga\valentia\valentia\example


Mode         LastWriteTime Length Name     
----         ------------- ------ ----     
-a--- 2014/02/14      4:37    219 readme.md


    Directory: D:\fuga\valentia\valentia\functions


Mode         LastWriteTime Length Name     
----         ------------- ------ ----     
-a--- 2014/02/14      4:37    695 readme.md


    Directory: D:\fuga\valentia\valentia\Tools


Mode         LastWriteTime Length Name       
----         ------------- ------ ----       
-a--- 2014/05/16      5:37    317 install.bat