I've got a large solution that I'm using TFS (and MSBuild) to... well... build. However, it takes a long time to build everything, and I was wondering if it was possible to just debug the build XML file rather than doing the build itself.
I'm using VS2008 and TFS 2008.
Unfortunately the possibility to debug MSBuild scripts with Visual Studio has been unofficially introduced in .NET 4.0.
For earlier versions all you are left with is "debugging by tracing", that is inserting log statements at key points in your script, running the script and examining the output.
Here's how you would typically do it using the Message Task:
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<SomeVariable>foo</SomeVariable>
</PropertyGroup>
<Target Name="MyTarget">
<!-- Some tasks -->
<Message Text="The value of SomeVariable is: $(SomeVariable)" Importance="High" />
<!-- Some tasks -->
</Target>
</Project>
You can then invoke the script from the command line and redirect the output to a log file:
msbuild MyScript.proj /t:MyTarget > %USERPROFILE%\Desktop\MyScript.log
Related resources:
Debugging MSBuild scripts with Visual Studio (.NET 4.0)
Overview of Logging in MSBuild
Related
I want to execute a text template before my MSBuild project in Visual Studio. I have added the following to my project file:
<Target Name="TransformOnBuild" BeforeTargets="ResolveProjectReferences">
<PropertyGroup>
<_TransformExe>$(MSBuildExtensionsPath)\..\Common7\IDE\TextTransform.exe</_TransformExe>
<_TextTransform>$(ProjectDir)AssemblyInfo.tt</_TextTransform>
<_TextTransformResult>$(ProjectDir)AssemblyInfo.cs</_TextTransformResult>
</PropertyGroup>
<Exec Command="del "$(_TextTransformResult)"" />
<Exec Command=""$(_TransformExe)" "$(_TextTransform)" -out "$(_TextTransformResult)"" />
</Target>
This simply deletes my AssemblyInfo.cs and regenerates it from AssemblyInfo.tt.
I use BeforeTargets="ResolveProjectReferences" because I need this file regenerated before any of the referenced projects get built.
Basically, this already works but I have noticed something strange: When I have this in my project file while Visual Studio is open, the AssemblyInfo.cs file constantly dissappears and then reappears. To me it looks like VS repeatedly executes my build target in the background. Of course I don't want it to behave like this. I want it to regenerate the file only when I start a build.
Is there any way to achieve my goal without generating constant CPU load and annoying file-wobbling in the explorer? Maybe a different base target than ResolveProjectReferences?
I use Visual Studio Professional 2022, Version 17.2.6
Update based on latest comments.
You could also try Condition="'$(DesignTimeBuild)' != 'true'".
Details/Background.
If you can live withit never being run inside Visual Studio, you can add this condition to the target element:
Condition="'$(BuildingInsideVisualStudio)' != 'true'"
Otherwise you can try this:
<Target Name="TransformOnBuild" BeforeTargets="ResolveProjectReferences"
Inputs="$(MSBuildProjectDirectory)AssemblyInfo.tt"
Outputs="$(MSBuildProjectDirectory)AssemblyInfo.cs">
<PropertyGroup>
<!-- ... -->
</Target>
You can learn more about Inputs/Outputs here. Basically, in this case, it means that the target will only be run, when AssemblyInfo.tt is newer than AssemblyInfo.cs.
Note that VS (for intellisence, etc.) will run targets in the background.
I am new to MSBuild and busy automating tests of Visual Studio solutions.
I previously worked with the command line of Devenv, which provides a convenient /Runexit mode of operation. From the manual:
/Runexit (devenv.exe)
Compiles and runs the specified solution, minimizes the IDE when the solution is run,
and closes the IDE after the solution has finished running.
This is exactly the functionality that I need. I am now migrating to MSBuild. I have discovered that the project files in the Solution can be directly used for building, as the default target is precisely Build.
What can I do to handle a different target, that will have the same effect as /Runexit ? Can you help me through the maze ?
This is the most basic Target which runs a projects' output file:
<Target Name="RunTarget">
<Exec Command="$(TargetPath)" />
</Target>
For c++ unittests I use something like this; it's a property sheet so it's easy to add to any project without needing to manually modify it. It automatcially runs the output after the build so there is no need to specify an extra target and it works the same for VS and from the command line. Moreover in VS you'll get unittest errors from frameworks like Unittest++ or Catch displayed right away in the error list, so you can doubleclick them. Also the UnitTestExtraPath property can be set elsewhere just in case (e.g. on a buildserver we always want to keep the PATH clean but sometimes we do need to modify it to run built exes).
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup />
<ItemDefinitionGroup />
<ItemGroup />
<!--Used to be AfterTargets="AfterBuild", but that is unusable since a failing test marks the build as unsuccessful,
but in a way that VS will always try to build again. As a consequence debugging in VS is impossible since
VS will build the project before starting the debugger but building fails time and time again.-->
<Target Name="RunUnitTests" AfterTargets="FinalizeBuildStatus">
<Exec Condition="$(UnitTestExtraPath)!=''" Command="(set PATH="%PATH%";$(UnitTestExtraPath)) & $(TargetPath)" />
<Exec Condition="$(UnitTestExtraPath)==''" Command="$(TargetPath)" />
</Target>
</Project>
How can a .cmd script run from within a Visual Studio (2005, 2008, 2010, 2012 and 2013 respectively) project's pre-link stage determine whether this is a full rebuild (Build.RebuildSolution/Build.RebuildOnlyProject) or "ordinary" build (Build.BuildSolution/Build.BuildOnlyProject)?
This is an external script (LuaJIT, if you must know) and I don't want to rebuild the library every single build of the project. Instead I'd like to limit the complete rebuild to situations where I choose exactly that option.
How can a .cmd script run from within a Visual Studio (2005, 2008, 2010, 2012 and 2013 respectively) project's pre-link stage determine whether this is a full rebuild ... or "ordinary" build ... ?
I do not know if the exact thing that you are asking can be done - perhaps someone else knows how to do it. I will, however, suggest an alternate approach.
My approach is to remove the build of the Lua library from the pre-link step to a separate Visual Studio NMake project. If you create an NMake project, you will be able to know which type of build (build or rebuild) is occurring.
Note that later versions of Visual Studio simply refer to the project type as "Make". For discussion purposes here, I will refer to the project type as "NMake". I believe this is just a naming difference, and that the underlying build project remains the same between the two versions.
As a simple test, I created two Visual Studio applications: 1) an NMake project that calls a batch file to create a static library, and 2) a console application that consumes the library from step 1.
The NMake Project
In Visual Studio, if you create a new NMake project, you will see a dialog that allows you to provide MS-DOS commands:
As you can see, there are commands for: Build, Clean, Rebuild, and others. I don't have a screen shot of the above dialog with my commands, but here is my NMake project's properties:
My Build command just checks for the existence of the output file (lua.lib). If it does not exist, then it calls the rebuild.bat batch file. My Rebuild command always calls the batch file. My Clean command just deletes the output. I am not really sure what the Output command is used for, but I just filled in the path to the build output (lua.lib).
Now if you do a build, the lua.lib file will only be created if it is not there. If it is already there, nothing is done. If you do a rebuild, then a new lua.lib file is created.
The Console Application
In my console application, I added a reference to the NMake project - this way the NMake project is built prior to the console application. Here is the console application's reference page:
I also added the lua.lib file as an input during the application's link stage:
When the console application is built (during a build), it will build the NMake project if needed, and use the output (lua.lib) during the linker stage. When the console application is rebuilt (during a rebuild), it will also rebuild the NMake project.
Other Thoughts
My screen shots above only show the debug version of the properties. Your projects will have to account for the release version. There probably is a VS macro to handle this, but I am not sure since it has been ages since I've done anything with C/ C++.
In my testing above I use a single build batch file for both the build and rebuild. Obviously, you could do the same or you could use different batch files.
It may be a bit of a hack, but in .csproj file there are sections
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
You can set an variable from BeforeBuild and retrieve it from cmd script. Later on reset this variable in AfterBuild and you should be good to go.
Ok, this is going to be a long one.
First of all - do not take my code 'as is' - it is terrible one with lots of hacks, I had no idea msbuild is so broken by default (it seems at work I have access to waaaay more commands that make life easier). And another thing - it seems vcxproj is broken at some poin - I was not able to integrate the way I wanted with only BeforeRebuild and AfterRebuild targets - I had to redefine hole Rebuild target (it is located in C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets)
So, the idea is the following: when a Rebuild is happening we create an anchor. Then, during PreLink stage we execute cmd which is able to use created anchor. If the anchor is in place - we deal with Rebuild, if there is no anchor - it is a simple Build. After Rebuild is done - we delete the anchor.
modifications in vcxproj file:
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
....
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
....
<PreLinkEventUseInBuild>true</PreLinkEventUseInBuild>
....
</PropertyGroup>
....
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
.....
<PreLinkEvent>
<Command>D:\PreLink\b.cmd</Command>
</PreLinkEvent>
.....
</ItemDefinitionGroup>
.....
<Target Name="BeforeRebuild">
<Exec Command="echo 2 > D:\PreLink\2.txt" />
</Target>
<Target Name="AfterRebuild">
<Exec Command="del D:\PreLink\2.txt" />
</Target>
<!-- This was copied from MS file -->
<PropertyGroup>
<_ProjectDefaultTargets Condition="'$(MSBuildProjectDefaultTargets)' != ''">$(MSBuildProjectDefaultTargets)</_ProjectDefaultTargets>
<_ProjectDefaultTargets Condition="'$(MSBuildProjectDefaultTargets)' == ''">Build</_ProjectDefaultTargets>
<RebuildDependsOn>
BeforeRebuild;
Clean;
$(_ProjectDefaultTargets);
AfterRebuild;
</RebuildDependsOn>
<RebuildDependsOn Condition=" '$(MSBuildProjectDefaultTargets)' == 'Rebuild' " >
BeforeRebuild;
Clean;
Build;
AfterRebuild;
</RebuildDependsOn>
</PropertyGroup>
<Target
Name="Rebuild"
Condition=" '$(_InvalidConfigurationWarning)' != 'true' "
DependsOnTargets="$(RebuildDependsOn)"
Returns="$(TargetPath)"/>
<!-- End of copy -->
</Project>
And the cmd looks like this:
if exist 2.txt (
echo Rebuild818181
) else (
echo Build12312312
)
The output from Output window:
1>Task "Exec" (TaskId:41)
1> Task Parameter:Command=D:\PreLink\b.cmd
1> :VCEnd (TaskId:41)
1> Build12312312 (TaskId:41)
Things to improve:
Use normal variables instead of external file (it seems MsBuild extension pack should do it)
Probably find a way to override only BeforeRebuild and AfterRebuild instead of the hole Rebuild part
It is much easier. Just add the following target to your build file or visual Studio Project
<Target Name="AfterRebuild">
<Message Text="AFTER REBUILD" Importance="High" />
<!--
Do whatever Needs to be done on Rebuild - as the message shows in VS Output
window it is only executed when an explicit rebuild is triggered
-->
</Target>
If you want a two step solution use this as a template:
<PropertyGroup>
<IsRebuild>false</IsRebuild>
</PropertyGroup>
<Target Name="BeforeRebuild">
<Message Text="BEFORE REBUILD" Importance="High" />
<PropertyGroup>
<IsRebuild>true</IsRebuild>
</PropertyGroup>
</Target>
<Target Name="BeforeBuild">
<Message Text="BEFORE BUILD: IsRebuild: $(IsRebuild)" Importance="High" />
</Target>
I have a simple MSBuild file that I'm learning with.
Here it is:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Clean" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup Label="Globals">
<ProjectGuid>{D5A16164-962E-4A6D-9382-240F31AB6C50}</ProjectGuid>
</PropertyGroup>
<Target Name="Clean">
<ItemGroup>
<BinFiles Include="bin\*.*" />
<fff Include="f\*.*" />
</ItemGroup>
<Delete Files="#(BinFiles)" />
<Delete Files="#(fff)" />
</Target>
</Project>
Now I want to include this in a Visual Studio solution and be able to run the "clean" target from Visual Studio 2012. I tried naming it testproject.msbuildproj like the internet seems to suggest "works", but it doesn't work. When I run the clean command I just get "unexpected error".
If I rename the project to testproject.csproj, it does some unintuitive things like creating compilation directories, but it does actually run my clean command properly. However, this is undesireable because it creates obj and bin/x86/debug type directories. It also looks goofy in Visual Studio because it still gives the References drop down.
How can I use just a plain vanilla MSBuild project from Visual Studio without random errors or false assumptions?
Note I only am having a problem with this from Visual Studio. Using msbuild from the command line it works perfectly
Visual Studio creates bin / obj folders when it opens csproj file. When you click Build / Rebuild / Clean it just uses appropriate targets from the project file.
You cannot stop VS from creating these folders, but you can ask it to create them in say temp folder by setting appropriate properties - refer this MSDN article for details.
So the steps are to rename your project to csproj, and add the following lines into project:
<PropertyGroup>
<OutputPath>$(Temp)\bin</OutputPath>
<IntermediateOutputPath>$(Temp)\obj</IntermediateOutputPath>
</PropertyGroup>
I usually use a bit different approach to work with MSBUILD files from VS:
I use regular csproj file with removed Import ... CSharp.targets part as pure container for my Build projects.
I add actual build files with targets and logic, and all properties, necessary artifacts like XSLT etc using "Include into project", so I can manage hierarchy and change any file from within VS.Net.
I redefine Build / Rebuild targets in csproj file for whatever I need, for example Build may contain minimum output, and while rebuild diagnostic one.
Like this:
<Target Name="Build">
<Exec Command="%windir%\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe Builds\build.proj /t:Build /v:m" />
</Target>
<Target Name="Rebuild">
<Exec Command="%windir%\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe Builds\build.proj /t:Build /v:d" />
</Target>
From a brand new console application template in visual studio, I edited the .csproj to build another project like this:
...
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<Target Name="BeforeBuild">
<MSBuild Projects=".\other.mproj"/>
</Target>
...
Where other.mproj is:
<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
<Target Name="Build">
<Message Text="kikou" />
</Target>
</Project>
After a while I discovered that modifying the content of other.mproj (for instance, by introducing errors or changing text kikou to something else) would not be taken into account unless unloading/reloading the project in visual studio.
Building from the command line with 'msbuild myproj.csproj' immediatly detect changes in 'other.mproj'. So it all looks like visual studio is working from a cached version of other.mproj file.
Why is visual studio caching this other script (which is even not included to the project), and how can I solve this issue ?
Update: I also tried this UseHostCompilerIfAvailable, it doesn't work.
NB1: I didn't add other.mproj as a project reference in the .csproj because it is not a .NET project at all (it just creates resources files for the .csproj from other inputs before the build)
NB2: I'm using VS2010 (10.0.10219.1SP1Rel + MSBuild 4.0.30319.1)
Visual Studio caches all MSBuild files, this is done for performance reasons. You will not be able to have an MSBuild only way around this. It may be possible to achieve this via a VS add-in but I'm not 100% sure of that.