批量创建符号链接，并删除失效的符号链接

CreateSymlinks.ps1

param (
    [Parameter(Mandatory=$true)]
    [string]$SourceDir,
    [Parameter(Mandatory=$true)]
    [string]$TargetDir
)

# 验证源目录是否存在
if (-not (Test-Path -Path $SourceDir -PathType Container)) {
    Write-Error "源目录不存在: $SourceDir"
    exit 1
}

# 创建目标目录（如果不存在）
if (-not (Test-Path -Path $TargetDir -PathType Container)) {
    New-Item -ItemType Directory -Path $TargetDir -Force | Out-Null
}

# 删除无效符号链接的函数
function Remove-InvalidSymlinks {
    param($Path)
    Get-ChildItem -Path $Path | ForEach-Object {
        $item = $_
        if ($item.Attributes -band [IO.FileAttributes]::ReparsePoint) {
            try {
                $target = $item.Target
                if (-not $target) {
                    Remove-Item -Path $item.FullName -Force
                    Write-Host "已删除无效符号链接: $($item.FullName)"
                    return
                }
                
                $resolvedTarget = if ([IO.Path]::IsPathRooted($target)) {
                    $target
                } else {
                    Join-Path -Path $item.Directory.FullName -ChildPath $target
                }
                
                if (-not (Test-Path -Path $resolvedTarget)) {
                    Remove-Item -Path $item.FullName -Force
                    Write-Host "已删除无效符号链接: $($item.FullName)"
                }
            } catch {
                Write-Host "处理项目时出错: $($item.FullName)"
            }
        }
    }
}

# 清理目标目录中的无效符号链接
Remove-InvalidSymlinks -Path $TargetDir

# 创建符号链接
Get-ChildItem -Path $SourceDir -File | ForEach-Object {
    $sourceFile = $_
    $targetPath = Join-Path -Path $TargetDir -ChildPath $sourceFile.Name

    if (Test-Path -Path $targetPath) {
        $targetItem = Get-Item -Path $targetPath -Force -ErrorAction SilentlyContinue
        if ($targetItem) {
            if ($targetItem.Attributes -band [IO.FileAttributes]::ReparsePoint) {
                Write-Host "已存在符号链接，跳过: $targetPath"
                return
            }
            Write-Host "目标存在但非符号链接，跳过: $targetPath"
            return
        }
    }

    try {
        $null = New-Item -ItemType SymbolicLink -Path $targetPath -Target $sourceFile.FullName -Force -ErrorAction Stop
        Write-Host "已创建符号链接: $targetPath -> $($sourceFile.FullName)"
    }
    catch {
        if ($_.Exception.Message -match "A required privilege is not held by the client") {
            Write-Error "需要管理员权限创建符号链接！请以管理员身份运行PowerShell"
            exit 1
        }
        Write-Error "创建符号链接失败: $targetPath. 错误: $_"
    }
}

Write-Host "操作完成"