如何使用powershell通过目录树递归查找文件

现在，在你抛出get childitem-recurse这个超级简单的答案之前，这里是我唯一的问题：
我正在用powershell远程连接到azure，获取站点（slot）列表，然后在站点上循环，并使用kuduapi查找目录结构中的所有图像。因为kudu没有递归的概念，所以我必须构建自己的递归函数，从根目录中获取所有图像，然后通过所有子目录和子目录等进行递归，以便在这些目录中也找到图像文件。
以下是我连接到azure并获取根目录的代码：

function Get-AzureRmWebAppPublishingCredentials($resourceGroupName, $webAppName, $slotName = $null){
    if ([string]::IsNullOrWhiteSpace($slotName)){
        $resourceType = "Microsoft.Web/sites/config"
        $resourceName = "$webAppName/publishingcredentials"
    }
    else{
        $resourceType = "Microsoft.Web/sites/slots/config"
        $resourceName = "$webAppName/$slotName/publishingcredentials"
    }
    $publishingCredentials = Invoke-AzureRmResourceAction -ResourceGroupName $resourceGroupName -ResourceType $resourceType -ResourceName $resourceName -Action list -ApiVersion 2015-08-01 -Force
        return $publishingCredentials
}

function Get-KuduApiAuthorisationHeaderValue($resourceGroupName, $webAppName, $slotName = $null){
    $publishingCredentials = Get-AzureRmWebAppPublishingCredentials $resourceGroupName $webAppName $slotName
    return ("Basic {0}" -f [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f $publishingCredentials.Properties.PublishingUserName, $publishingCredentials.Properties.PublishingPassword))))
}

function Fill-MimeTypes(){
    return @("image/gif", "image/x-icon", "image/jpeg", "image/png", "image/tiff", "image/bmp")
}

$MimeTypes = Fill-MimeTypes
[System.Collections.ArrayList]$Directories = @()

# Login to Azure Account

Login-AzureRmAccount

# Get the Azure subscription

Select-AzureRmSubscription -SubscriptionName [Subscription Name]

# Get the resource group name

$resourceGroupName = [Resource Group Name]

# Get the WebApp name

$Resources = Find-AzureRmResource -ResourceType Microsoft.Web/sites -ResourceGroupNameContains $resourceGroupName

ForEach($Resource in $Resources)
{
    #Get the WebAppName
    $WebAppName = $Resource.Name

    #Now, get the publishing creds
    $publishingCredentialsHeader = Get-KuduApiAuthorisationHeaderValue $resourceGroupName $WebAppName $null
    $ApiUrl = "https://$WebAppName.scm.azurewebsites.net/api/vfs/site/wwwroot/"

    #Now get the list of files in the wwwroot directory
    $InitialList = Invoke-RestMethod -Uri $ApiUrl -Headers @{Authorization=$publishingCredentialsHeader} -Method GET -ContentType "application/json"

    ForEach($Item in $InitialList)
    {
        If($MimeTypes -Contains $Item.mime)       
        {
            #Add image file data to a collection
        }

        If ($Item.mime -eq "inode/directory")
        {
            #So, here is where I need to recurse...
            #The mime type of inode/directory means it's a directory ;)
            #I now need to call the Api again with the Url and get the contents of the current directory and rinse and repeat until done
            #But I cannot forget about the other directories in the root directory and their children.
        }
    }
}

如何编写递归函数？

我会写如下。有些是psuedo代码，因为我不精通ps语法或关键字：

function Collect-Files($apiUrl, $creds, $currentDir)
{
    $list = Invoke-RestMethod -Uri $apiUrl/$currentDir/ -Headers @{Authorization=$creds} -Method GET -ContentType "application/json"

    If($MATCHLIST -eq $null)
    {
        $MATCHLIST = @() #initialize array
    }

    ForEach($Item in $list)
    {
        If($MimeTypes -Contains $Item.mime)       
        {
            #Add image file data to a collection
            $MATCHLIST += $Item #add to array
        }

        If ($Item.mime -eq "inode/directory")
        {
            $nextDir = $Item.name
            $MATCHLIST = Collect-Files $apiUrl $creds $currentDir/$nextDir
        }
    }

    return ($MATCHLIST)
}

然后，前面的代码将按如下方式调用此函数：


# Get the WebApp name

$Resources = Find-AzureRmResource -ResourceType Microsoft.Web/sites -ResourceGroupNameContains "Nav-Inventory"

ForEach($Resource in $Resources)
{
    #Get the WebAppName
    $WebAppName = $Resource.Name

    #Now, get the publishing creds
    $publishingCredentialsHeader = Get-KuduApiAuthorisationHeaderValue $resourceGroupName $WebAppName $null
    $ApiUrl = "https://$WebAppName.scm.azurewebsites.net/api/vfs/site/"

    #Now get the list of files in the wwwroot directory
    $InitialList = Invoke-RestMethod -Uri $ApiUrl -Headers @{Authorization=$publishingCredentialsHeader} -Method GET -ContentType "application/json"

    $MATCHES += Collect-Files $ApiUrl $publishingCredentialsHeader "wwwroot"
}

基本递归。

如何使用powershell通过目录树递归查找文件

1条答案

相关问题

热门标签

最新问答