Remove unused cs-files in solution

Question

I have a big solution and there are many *.cs-files that actually don't belong to my solution (not included to csproj-files) any more. Is there any way to find all of them and remove?

Answer 1

This PowerShell script should do what you are looking for. It parses the project file to get the included code files. Then it compares that list to the actual files on disk. The remaining files are your unused/obsolete files.

The script can either delete the unused files from disk or pend them as deletes in TFS.

<#
.SYNOPSIS
Find and process files in a project folder that are not included in the project. 


.DESCRIPTION
Find and process files in a project folder that are not included in the project. 
Options to delete the files or to add them as pending deletes for TFS. Use TF.exe to pend the deletes and start the check-in process for the files.
This is necessary when trying to delete files that are not currently included in a Visual Studio project.

.PARAMETER Project
The path/name for the project file. 

.PARAMETER VsVersion
The Visual Studio version (10, 11, 12). Used to locate the tf.exe file.  

.PARAMETER DeleteFromDisk
Just delete the files from disk. No interaction with any source control.

.PARAMETER TfsCheckin
After pending the deletes, open the check-in dialog.

#>

[CmdletBinding()]
param(
    [Parameter(Position=0, Mandatory=$true)]
    [string]$Project,  
    [Parameter(Mandatory=$false)]
    [ValidateRange(10,12)] 
    [int] $VsVersion = 12,
    [switch]$DeleteFromDisk,
    [switch]$TfsCheckin
)

$ErrorActionPreference = "Stop"
$tfPath = "${env:ProgramFiles(X86)}\Microsoft Visual Studio $VsVersion.0\Common7\IDE\TF.exe"

$projectPath = Split-Path $project


if($Project.EndsWith("csproj"))
{
    $fileType = "*.cs"
}
else
{
    $fileType = "*.vb"
}
$fileType


$projectFiles = Select-String -Path $project -Pattern '<compile'  | % { $_.Line -split '\t' } | `
     % {$_ -replace "(<Compile Include=|\s|/>|["">])", ""} | % { "{0}\{1}" -f $projectPath, $_ }
Write-Host "Project files:" $projectFiles.Count


$diskFiles = gci -Path $path -Recurse -Filter $fileType | % { $_.FullName}
Write-Host "Disk files:" $diskFiles.Count


$diff = (compare-object $diskFiles $projectFiles  -PassThru) 
Write-Host "Excluded Files:" $diff.Count

#create a text file for log purposes
$diffFilePath = Join-Path $projectPath "DiffFileList.txt" 
$diff | Out-File $diffFilePath  -Encoding UTF8
notepad $diffFilePath


#just remove the files from disk
if($DeleteFileOnly)
{
    $diff | % { Remove-Item -Path $_ -Force -Verbose}
}
else #TFS options
{
    #this will add the files as pending deletes in TFS (awaiting check-in)
    $diff | % {
        [Array]$arguments = @("delete", "`"$_`"")
        & "$tfPath" $arguments
    }

    if($Checkin)
    {
        #start the check-in process for the pending deletes
        [Array]$arguments = "checkin", "/recursive", "$projectPath"
        & $tfPath $arguments
    }
}

Answer 2

When you select the project in solution explorer, click on the button "Show all files" in the solution explorer's toolbar. This will show you files and folders in the project directory, but which are not included in the project. This allows you to delete them or readd them to the project.

I don't know of an automated solution, so you'd have to do this for each project manually.