有 xbuild /t:Package 支持吗？ （特拉维斯）

Question

（有点相关issue）

TravisCI 支持 C# 构建和 Elastic Beanstalk 部署。凉爽的。但我无法获取 Package 目标来构建部署到 EBS IIS 中的 zip 文件。

我的 .travis.yml 文件如下所示：

language: csharp
solution: RestfulWCFService.sln
mono:
  - latest
script:
  - xbuild RestfulWCFService.sln /p:Configuration=Release /p:Platform="Any CPU" ## OK
  - xbuild RestfulWCFService.csproj /t:Package /p:Configuration=Release ## FAIL!
deploy:
  - provider: elasticbeanstalk
  ....

单声道版：

$ mono --version
Mono JIT compiler version 4.0.1 (tarball Thu May 28 09:08:28 UTC 2015)

（OK）构建消息是：

...
Done executing task "CallTarget"
Done building target "Build" in project "/home/vagrant/syllabus/RestfulWCFService.sln".
Done building target "Build" in project "/home/vagrant/syllabus/RestfulWCFService.sln" ("/home/vagrant/syllabus/RestfulWCFService.sln").
Done building project "/home/vagrant/syllabus/RestfulWCFService.sln".

Build succeeded.

Warnings:

/home/vagrant/syllabus/RestfulWCFService.sln (default targets) ->
(Build target) ->
/home/vagrant/syllabus/RestfulWCFService.csproj (default targets) ->
/usr/lib/mono/4.5/Microsoft.Common.targets (ResolveAssemblyReferences target) ->

        /usr/lib/mono/4.5/Microsoft.Common.targets:  warning : Reference 'System.Web.Entity' not resolved

         1 Warning(s)
         0 Error(s)

(FAIL) /t:Package 消息如下所示：

...
/home/vagrant/syllabus/RestfulWCFService.csproj: Importing project /usr/lib/mono/xbuild/Microsoft/VisualStudio/v10.0/WebApplications/Microsoft.WebApplication.targets from extension path /usr/lib/mono/xbuild
Building target "_ValidateEssentialProperties" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/usr/lib/mono/4.5/Microsoft.Common.targets").
Done building target "_ValidateEssentialProperties" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/usr/lib/mono/4.5/Microsoft.Common.targets").
/home/vagrant/syllabus/RestfulWCFService.csproj: error : Target named 'Package' not found in the project.
Done building project "/home/vagrant/syllabus/RestfulWCFService.csproj".-- FAILED

Build FAILED.
Errors:

/home/vagrant/syllabus/RestfulWCFService.csproj (Package) ->

        /home/vagrant/syllabus/RestfulWCFService.csproj: error : Target named 'Package' not found in the project.

         0 Warning(s)
         1 Error(s)

所以我的问题是，为什么是Target named 'Package' not found in the project？我已经验证 /t:Package 在 Windows 机器上可以与 MSBuild 一起正常工作。

注意：我发现如果我在 .csproj 文件中添加一个空目标，例如

[Target Name="Package"\]
[/Target]

它不再抱怨缺少目标，但什么也不做：

...
/home/vagrant/syllabus/RestfulWCFService.csproj: Importing project /usr/lib/mono/xbuild/Microsoft/VisualStudio/v10.0/WebApplications/Microsoft.WebApplication.targets from extension path /usr/lib/mono/xbuild
Building target "_ValidateEssentialProperties" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/usr/lib/mono/4.5/Microsoft.Common.targets").
Done building target "_ValidateEssentialProperties" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/usr/lib/mono/4.5/Microsoft.Common.targets").
Building target "Package" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/home/vagrant/syllabus/RestfulWCFService.csproj").
Done building target "Package" in project "/home/vagrant/syllabus/RestfulWCFService.csproj" ("/home/vagrant/syllabus/RestfulWCFService.csproj").
Done building project "/home/vagrant/syllabus/RestfulWCFService.csproj".

Build succeeded.
         0 Warning(s)
         0 Error(s)

任何 xbuild 帮助将不胜感激。

Answer 1

所以我的问题是，为什么在 项目？我已经验证 /t:Package 在 Windows 上与 MSBuild 一起工作正常 机器。

xBuild 不是 MSBuild 的 100% 替代品。 MSBuild 现在已经开源，并且正在做的工作是在 xplat 世界中玩得很好，但它还没有......

因此，当 xbuild 抱怨您的项目中缺少 Package 目标时，那是因为它没有在 xbuild 的“开箱即用”可用的目标中定义。它很可能被编写为 MSBuild 加载/执行的平台相关 dll，并且没有关于他们正在做什么的公开信息，因此在 Xamarin 中从未得到任何关注，和/或没有足够的人需要该功能。另外 /t:package 会创建像“myApp.deploy.cmd”这样的文件，这些文件在 *nix 上不起作用......

因此，您走在正确的轨道上，将 Package 目标添加到您的项目并定义您需要它执行的任务，以模拟内置 Web 打包基础架构 Package 在 Windows 上所做的事情，但在 xplat 环境中。我会假设一些消息，路径组合，执行和复制任务来创建/移动 zip 文件。如果您确实需要“myApp.SetParameters.xml”文件，您也可以执行此任务。

“Microsoft.Common.targets”中的 xbuild v12 预定义目标

Target Name="_ValidateEssentialProperties"
Target Name="PrepareForBuild" DependsOnTargets="$(PrepareForBuildDependsOn)"
Target Name="AssignLinkMetadata"
Target Name="GetFrameworkPaths"
Target Name="GetReferenceAssemblyPaths" DependsOnTargets="$(GetReferenceAssemblyPathsDependsOn)"
Target Name="GenerateTargetFrameworkMonikerAttribute"
Target Name="ResolveReferences" DependsOnTargets="$(ResolveReferencesDependsOn)"
Target Name="BeforeResolveReferences"
Target Name="AfterResolveReferences"
Target Name="ResolveAssemblyReferences" DependsOnTargets="$(ResolveAssemblyReferencesDependsOn)"
Target Name="SplitProjectReferencesByExistent"
Target Name="_ComputeNonExistentFileProperty"
Target Name="BuildOnlySettings"
Target Name="BeforeBuild"
Target Name="AfterBuild"
Target Name="Build" DependsOnTargets="$(BuildDependsOn)" Outputs="$(TargetPath)"
Target Name="BeforeCompile"
Target Name="AfterCompile"
Target Name="Compile" DependsOnTargets="$(CompileDependsOn)"
Target Name="PrepareForRun" DependsOnTargets="$(PrepareForRunDependsOn)"
Target Name="PrepareResources" DependsOnTargets="$(PrepareResourcesDependsOn)"
Target Name="SplitResourcesByCulture" DependsOnTargets="AssignTargetPaths"
Target Name="GenerateSatelliteAssemblies"
Target Name="DeployOutputFiles"
Target Name="_CopyDeployFilesToOutputDirectory"
Target Name="_CopyDeployFilesToOutputDirectoryPreserveNewest"
Target Name="_CopyDeployFilesToOutputDirectoryAlways"
Target Name="_CopyAppConfigFile" Condition="'@(AppConfigWithTargetPath)' != ''"
Target Name="GetTargetPath" Outputs="$(TargetPath)"
Target Name="GetCopyToOutputDirectoryItems"
Target Name="PreBuildEvent"
Target Name="PostBuildEvent"
Target Name="_TimestampBeforeCompile" Condition="'$(RunPostBuildEvent)' == 'OnOutputUpdated'"
Target Name="_TimestampAfterCompile" Condition="'$(RunPostBuildEvent)' == 'OnOutputUpdated'"
Target Name="BeforeRebuild"
Target Name="AfterRebuild"
Target Name="Rebuild"
Target Name="_RecordCleanFile"
Target Name="_GetCompileOutputsForClean"
Target Name="_GetCleanFileWrites"
Target Name="CleanReferencedProjects"
Target Name="Clean" DependsOnTargets="$(CleanDependsOn)"
Target Name="BeforeClean"
Target Name="AfterClean"
Target Name="CoreClean" DependsOnTargets="_GetCleanFileWrites"
Target Name="ImplicitlyExpandDesignTimeFacades"

xbuild 任务（在 v12 / Microsoft.Build.Tasks.* 中定义）：

Microsoft.Build.Tasks.AL"
Microsoft.Build.Tasks.AssignTargetPath"
Microsoft.Build.Tasks.AssignLinkMetadata"
Microsoft.Build.Tasks.AssignCulture"
Microsoft.Build.Tasks.AssignProjectConfiguration"
Microsoft.Build.Tasks.CallTarget"
Microsoft.Build.Tasks.CombinePath"
Microsoft.Build.Tasks.Copy"
Microsoft.Build.Tasks.CreateCSharpManifestResourceName"
Microsoft.Build.Tasks.CreateVisualBasicManifestResourceName"
Microsoft.Build.Tasks.CreateItem"
Microsoft.Build.Tasks.CreateProperty"
Microsoft.Build.Tasks.Csc"
Microsoft.Build.Tasks.Delete"
Microsoft.Build.Tasks.Error"
Microsoft.Build.Tasks.Exec"
Microsoft.Build.Tasks.FindAppConfigFile"
Microsoft.Build.Tasks.FindUnderPath"
Microsoft.Build.Tasks.GenerateResource"
Microsoft.Build.Tasks.GetAssemblyIdentity"
Microsoft.Build.Tasks.GetFrameworkPath"
Microsoft.Build.Tasks.GetFrameworkSdkPath"
Microsoft.Build.Tasks.GetReferenceAssemblyPaths"
Microsoft.Build.Tasks.LC"
Microsoft.Build.Tasks.MakeDir"
Microsoft.Build.Tasks.Message"
Microsoft.Build.Tasks.MSBuild"
Microsoft.Build.Tasks.ReadLinesFromFile"
Microsoft.Build.Tasks.RemoveDir"
Microsoft.Build.Tasks.RemoveDuplicates"
Microsoft.Build.Tasks.ResolveAssemblyReference"
Microsoft.Build.Tasks.SignFile"
Microsoft.Build.Tasks.Touch"
Microsoft.Build.Tasks.Vbc"
Microsoft.Build.Tasks.Warning"
Microsoft.Build.Tasks.WriteCodeFragment"
Microsoft.Build.Tasks.WriteLinesToFile"