无法理解FAKE代码： - FAKE F＃MAKE

Question

我有一个示例脚本，我无法理解该文件中的一段代码，这里是代码：

Target "Package1" (fun _ ->
  NuGet (fun p ->
    { p with
      OutputPath = DeployDir
      ReleaseNotes = ReleaseNote
      WorkingDir = BuildDir
      Publish = false
      Version = PackageVersion
      Files = [
        (@"*.dll", Some "lib", None)
        (@"*.pdb", Some "lib",  None)
      ]
    })
    "src/Client/Project.Client.nuspec"
)

此目标的订单是最后一次。那么使用这个目标的目的是什么呢？什么是src/Project.Client/Project.Client.nuspec的最后一行。如果有人能详细解释这一点，那将非常有用。

Answer 1

看看缩进。 "src/Client/Project.Client.nuspec"字符串缩进进一步而不是NuGet，因为它是NuGet函数的参数之一（需要两个参数）。以下是编写此目标的另一种方式，具有相同的效果但不同的缩进：

Target "Package1" (fun _ ->
  NuGet 
    (fun p -> { p with OutputPath = DeployDir
                       ReleaseNotes = ReleaseNote
                       WorkingDir = BuildDir
                       Publish = false
                       Version = PackageVersion
                       Files = [
                         (@"*.dll", Some "lib", None)
                         (@"*.pdb", Some "lib",  None)
                       ]
              }
    )
    "src/Client/Project.Client.nuspec"
)

或者让它更清晰：

let nuGetParameterFunction = 
    (fun p -> { p with OutputPath = DeployDir
                       ReleaseNotes = ReleaseNote
                       WorkingDir = BuildDir
                       Publish = false
                       Version = PackageVersion
                       Files = [
                         (@"*.dll", Some "lib", None)
                         (@"*.pdb", Some "lib",  None)
                       ]
              }
    )

Target "Package1" (fun _ ->
  NuGet nuGetParameterFunction "src/Client/Project.Client.nuspec"
)

这两个片段与您询问的片段完全相同。只是在这些中，NuGet函数需要两个参数，这一点更为明显。

Answer 2

如果查看NuGetHelper的文档，NuGet函数的签名为setParams:(NuGetParams -> NuGetParams) -> nuspecOrProjectFile:string -> unit。

这意味着该函数采用setParams函数，该函数从默认的NuGetParams集创建一组新的NuGetParams。以及写入生成的nuspec文件的路径。

在您的示例中，setParams函数定义为（我的评论）：

fun p ->
    { p with                      // p is the default NuGetParams
      OutputPath = DeployDir      // set OutputPath from FAKE properties
      ReleaseNotes = ReleaseNote  // Set ReleaseNotes to ReleaseNote (from FAKE)
      WorkingDir = BuildDir       // Set WorkingDir from FAKE properties
      Publish = false             // Do not publish to NuGet.org
      Version = PackageVersion    // Set Version number
      Files = [                   // Put these files from WorkingDir into the package
        (@"*.dll", Some "lib", None)
        (@"*.pdb", Some "lib",  None)
      ]
    })

Target "Package1"是最后一个目标的原因是确保setParams值的所有值都有效。