MSBuild使用ItemGroup和EXEC命令 [英] MSBuild Working with ItemGroup and EXEC Command

问题描述

我创建了代码片段中显示的ItemGroup。我需要遍历这个ItemGroup并运行EXEC命令 - 也显示在代码片段。我似乎不能让它工作。代码返回如下所示的错误（注意 - 消息被写入2次，这是正确的），但是EXEC命令运行不正确。未设置该值;因此EXEC没有执行。我需要EXEC执行两次或通过在ItemGroup中定义的部分。

I created the ItemGroup shown in the code snippet. I need to iterate through this ItemGroup and run the EXEC command - also shown in the code snippet. I cannot seem to get it to work. The code returns the error shown below (note - the Message is written 2 times, which is correct), but the EXEC Command is not running correctly. The value is not being set; therefore the EXEC is not executing at all. I need the EXEC to execute twice or by however sections I define in the ItemGroup.

错误：
加密WebServer appSettings部分
加密WebServer connectionStrings部分
C：\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -pef\gaw\UI-provRSACustomProvider
加密配置section ...
未找到配置部分。

ERROR: Encrypting WebServer appSettings section Encrypting WebServer connectionStrings section C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -pef "" "\gaw\UI" -prov "RSACustomProvider" Encrypting configuration section... The configuration section '' was not found.

CODE SNIPPET：

CODE SNIPPET:

<ItemGroup>
    <SectionsToEncrypt Include="Item">
      <Section>appSettings</Section>     
    </SectionsToEncrypt>
    <SectionsToEncrypt Include="Item">     
      <Section>connectionStrings</Section>
    </SectionsToEncrypt>  
  </ItemGroup>

  <Target Name="EncryptWebServerWebConfigSections">   
    <Message Text="Encrypting WebServer %(SectionsToEncrypt.Section) section" />

    <Exec Command="$(AspNetRegIis) -pef &quot;%(SectionsToEncrypt.Section)&quot; &quot;$(DropLocation)\$(BuildNumber)\%(ConfigurationToBuild.FlavorToBuild)\$(AnythingPastFlavorToBuild)&quot; -prov &quot;$(WebSiteRSACustomProviderName)&quot;"/>
  </Target>

推荐答案

问题是，一个时间。我的意思是你有声明

The problem is that you are batching on 2 items at a time. What I mean is the you have the statements

%(SectionsToEncrypt.Section)
%(ConfigurationToBuild.FlavorToBuild)

在同一任务调用中。当在同一任务调用中一次批处理多个项目时，它们将独立地批处理。这就是为什么你的错误是说明配置部分 ...

In the same task invocation. When you batch on more than 1 item at a time in the same task invocation, they will be batch independently. That's why you're error is stating The configuration section '' ...

如果你的FlavorToBuild只有一个值你应该做是在东西，进入一个属性，然后调用Exec，然后使用该属性。所以你的一个班轮会转换为：

If you your FlavorToBuild just has one value what you should do is to stuff that into a property before you call to Exec and then use the property. So your one liner would then convert to:

<PropertyGroup>
    <_FlavToBuild>%(ConfigurationToBuild.FlavorToBuild)<_FlavToBuild>
</PropertyGroup>
<Exec Command="$(AspNetRegIis) -pef &quot;%(SectionsToEncrypt.Section)&quot; &quot;$(DropLocation)\$(BuildNumber)\$(_FlavToBuild)\$(AnythingPastFlavorToBuild)&quot; -prov &quot;$(WebSiteRSACustomProviderName)&quot;"/>

如果你有FlavorToBuild的多个值，那么更复杂。您将有两个选项：

If you have multiple values for FlavorToBuild then it's more complicated. You would have 2 options:

1. 硬编码Exec多次


2. 批处理以执行foreach / foreach

批处理是MSBuild最令人困惑的元素之一。我在 http://sedotech.com/Resources#batching 上提供了一些在线资源。如果您想了解详情，可以选择我的图书的副本。

Batching is one of the most confusing elements of MSBuild. I've put together some online resources at http://sedotech.com/Resources#batching. If you want to know more than that then you can pick up a copy of my book.

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