.. | ||
dotnetsay.csproj | ||
Program.cs | ||
README.md |
dotnetsay .NET Tool Sample
This sample demonstrates how to use and create .NET Tools. It works on Windows, macOS and Linux.
You must have the .NET SDK installed, .NET Core 2.1 or higher.
Installation
You can quickly install and try the dotnetsay:
dotnet tool install -g dotnetsay
dotnetsay
Note: You may need to open a new command/terminal window the first time you install a tool.
You can uninstall the tool using the following command.
dotnet tool uninstall -g dotnetsay
Build the Tool from source
You can build and package the tool using the following commands. The instructions assume that you are in the root of the repository.
cd samples
cd dotnetsay
dotnet pack -c Release -o nupkg
dotnet tool install --add-source .\nupkg -g dotnetsay
dotnetsay
Note: On macOS and Linux,
.\nupkg
will need be switched to./nupkg
to accomodate for the different slash directions.
You can uninstall the tool using the following command.
dotnet tool uninstall -g dotnetsay
The PackAsTool
property in the project file enables packing a console application as a global tool, as you can see in the following simplified example. Applications must target .NET Core 2.1 or higher for global tools.
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.1</TargetFramework>
<PackAsTool>true</PackAsTool>
</PropertyGroup>
</Project>
Enabling SourceLink with Tools
You can make tools debuggable with sourcelink by adding the following properties and PackageReference
. The example is specific to git and GitHub. See dotnet/sourcelink for other options.
<PropertyGroup>
<PublishRepositoryUrl>true</PublishRepositoryUrl>
<DebugType>embedded</DebugType>
<EmbedUntrackedSources>true</EmbedUntrackedSources>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All"/>
</ItemGroup>
The dotnetsay project doesn't add these properties or the PackageReference
but relies on the same information in the Directory.build.props in the parent directory.
Note: The approach used in Directory.build.props conditionalizes sourcelink properties and
PackageReference
to theContinuousIntegrationBuild
property being set. There is no problem running SourceLink on every build, however, it isn't necessary.
Use ContinuousIntegrationBuild
when producing official builds. If you don't, the sourcelink information will be wrong. The simplest way to do that is by packing with an additional property set, as follows.
dotnet pack /p:ContinuousIntegrationBuild=true
Make sure to build official packages from branches/repositories with stable commit hashes. If you build from a branch whose commits are later squashed, then the commit hashs will not be found and sourcelink will not work correctly.
SourceLink will fail if it cannot find a .git
directory. This can happen if you build projects in containers at solution root and not repo root for example. There are solutions to that problem described at the sourcelink repo.
Debug Tools with Visual Studio
You can debug sourcelink-enabled .NET Core Global tools with Visual Studio, using the Developer Command Prompt for VS 2017
. The following example launches dotnetsay
for debugging:
devenv /debugexe c:\Users\rich\.dotnet\tools\dotnetsay.exe
Set Debugger Type
to Managed (CoreCLR)
in Properties
. Then Step Into new instance
from the Debug
menu.
You will be asked if you want to download source from GitHub. After that, you will then be able to step through the execution of the tool.