MSBuild Exec 任务是否在 STDOUT 中搜索字符串 "error"？

Question

我有一个小型 NUnit 测试套件，其中包含一个被忽略的测试。我现在正在编写一个简单的 MSBuild 脚本来恢复和发布等。我试图让 dotnet test 任务工作

<Target Name="test" DependsOnTargets="restore">
    <Exec Command="dotnet test"
          WorkingDirectory="test\Example.Tests" />
</Target>

但是，它每次都以代码 -1 退出！

PS> dotnet msbuild /t:test build.xml
Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

    Restore completed in 50.88 ms for C:\...\src\Example\Example.csproj.
    Restore completed in 57.18 ms for C:\...\test\Example.Tests\Example.Tests.csproj.
  Build started, please wait...
  Build completed.

  Test run for C:\...\test\Example.Tests\bin\Debug\netcoreapp1.1\Example.Tests.dll(.NETCoreApp,Version=v1.1)
  Microsoft (R) Test Execution Command Line Tool Version 15.0.0.0
  Copyright (c) Microsoft Corporation.  All rights reserved.

        Starting test execution, please wait...
  NUnit Adapter 3.8.0.0: Test execution started
  Running all tests in C:\...\test\Example.Tests\bin\Debug\netcoreapp1.1\Example.Tests.dll
  NUnit3TestExecutor converted 26 of 26 NUnit test cases
  Skipped  FilterEndpointWithCompletelyFilteredSystemsReturnsNotFound("foo")
EXEC : error Message:  [C:\...\build.xml]
   OneTimeSetUp: Having trouble constructing this scenario with the current command catalog

  NUnit Adapter 3.8.0.0: Test execution complete

  Total tests: 26. Passed: 25. Failed: 0. Skipped: 1.
  Test Run Successful.
  Test execution time: 2.8322 Seconds


C:\...\build.xml(16,9): error MSB3073: The command "dotnet test" exited with code -1.

如果我直接在我的控制台中运行命令，没问题。

PS> dotnet test
Build started, please wait...
Build completed.

Test run for C:\...\test\Example.Tests\bin\Debug\netcoreapp1.1\Example.Tests.dll(.NETCoreApp,Version=v1.1)
Microsoft (R) Test Execution Command Line Tool Version 15.0.0.0
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
NUnit Adapter 3.8.0.0: Test execution started
Running all tests in C:\...\test\Example.Tests\bin\Debug\netcoreapp1.1\Example.Tests.dll
NUnit3TestExecutor converted 26 of 26 NUnit test cases
Skipped  FilterEndpointWithCompletelyFilteredSystemsReturnsNotFound("foo")
Error Message:
 OneTimeSetUp: Having trouble constructing this scenario with the current command catalog

NUnit Adapter 3.8.0.0: Test execution complete

Total tests: 26. Passed: 25. Failed: 0. Skipped: 1.
Test Run Successful.
Test execution time: 3.6485 Seconds

我四处寻找帮助，但没有找到任何明确的信息。我的印象是 Exec task 在 STDOUT 中搜索某种错误消息，可能只是单词 "error"，以便设置退出 code/status.

这确实出现在我的控制台上（出于某种原因，NUnit 为 ignored/skipped 测试打印 "Error Message"）。

Skipped  FilterEndpointWithCompletelyFilteredSystemsReturnsNotFound("foo")
Error Message:
 OneTimeSetUp: Having trouble constructing this scenario with the current command catalog

如果我注释掉这个测试，运行通过（通过 msbuild）。

我对 Exec 任务的看法是否正确？我会 "fix" 通过覆盖 CustomErrorRegularExpression 参数来解决问题吗？我找不到关于此参数的任何有用信息...我可以将其设置为空字符串吗？

Answer 1

如果提供，Exec checks the output against CustomErrorRegularExpression and CustomWarningRegularExpression first. If those do not match or were not provided, Exec then uses 以下正则表达式：

            new Regex
            (
            // Beginning of line and any amount of whitespace.
            @"^\s*"
                // Match a [optional project number prefix 'ddd>'], single letter + colon + remaining filename, or
                // string with no colon followed by a colon.
            + @"(((?<ORIGIN>(((\d+>)?[a-zA-Z]?:[^:]*)|([^:]*))):)"
                // Origin may also be empty. In this case there's no trailing colon.
            + "|())"
                // Match the empty string or a string without a colon that ends with a space
            + "(?<SUBCATEGORY>(()|([^:]*? )))"
                // Match 'error' or 'warning'.
            + @"(?<CATEGORY>(error|warning))"
                // Match anything starting with a space that's not a colon/space, followed by a colon.
                // Error code is optional in which case "error"/"warning" can be followed immediately by a colon.
            + @"( \s*(?<CODE>[^: ]*))?\s*:"
                // Whatever's left on this line, including colons.
            + "(?<TEXT>.*)$",
            RegexOptions.IgnoreCase | RegexOptions.Compiled
            )

计算出以下 example 格式的行被解释为错误或警告（取决于这两个词中的哪一个在 "Cat." 部分）。

Main.cs(17,20):Command line warning CS0168: The variable 'foo' is declared but never used
-------------- ------------ ------- ------  ----------------------------------------------
Origin         SubCategory  Cat.    Code    Text

Would I "fix" the problem by overriding the CustomErrorRegularExpression parameter?

编辑

（我自己的问题：为什么在 地球上 我一开始就说 "Yup" 而我的第二句话直接与此相矛盾？）

没有。 :) 将 IgnoreStandardErrorWarningFormat 设置为 true。来自您在问题中链接的 documentation：

IgnoreStandardErrorWarningFormat: Optional Boolean parameter.

If false, selects lines in the output that match the standard error/warning format, and logs them as errors/warnings.

If true, disable this behavior.

The default value is false.

MSBuild Exec 任务是否在 STDOUT 中搜索字符串 "error"？

Does the MSBuild Exec task search STDOUT for the string "error"?

msbuild

msbuild-task