dotnet-exec

Intro

dotnet-exec is a command-line tool for executing C# program without a project file, and you can have your custom entry point other than the Main method

Slides:

• Makes C# more simple -- .NET Conf China 2022
• dotnet-exec simpler C# -- .NET Conf China 2023 Watch Party Shanghai

Github Action for executing without dotnet environment

• https://github.com/WeihanLi/dotnet-exec-action
• https://github.com/marketplace/actions/dotnet-exec

Install/Update

dotnet tool

Latest stable version:

dotnet tool update -g dotnet-execute

Latest preview version:

dotnet tool update -g dotnet-execute --prerelease

Install failed? try the command below:

dotnet tool update -g dotnet-execute --prerelease --add-source https://api.nuget.org/v3/index.json --ignore-failed-sources

Container support

Execute with docker

docker run --rm weihanli/dotnet-exec:latest "1+1"

docker run --rm weihanli/dotnet-exec:latest "Guid.NewGuid()"

docker run --rm --pull=always weihanli/dotnet-exec:latest "ApplicationHelper.RuntimeInfo"

Execute with podman

podman run --rm weihanli/dotnet-exec:latest "1+1"

podman run --rm weihanli/dotnet-exec:latest "Guid.NewGuid()"

podman run --rm --pull=always weihanli/dotnet-exec:latest "ApplicationHelper.RuntimeInfo"

for the full image tag list, see https://hub.docker.com/r/weihanli/dotnet-exec/tags

Examples

Get started

Execute local file:

dotnet-exec HttpPathJsonSample.cs

Execute a local file with custom entry point:

dotnet-exec 'HttpPathJsonSample.cs' --entry MainTest

Execute remote file:

dotnet-exec https://github.com/WeihanLi/SamplesInPractice/blob/master/net7Sample/Net7Sample/ArgumentExceptionSample.cs

Execute raw code:

dotnet-exec 'Console.WriteLine(1+1);'

Execute the raw script:

dotnet-exec '1 + 1'

dotnet-exec 'Guid.NewGuid()'

References

Execute raw code with custom references:

NuGet package reference:

dotnet-exec 'CsvHelper.GetCsvText(new[]{1,2,3}).Dump();' -r "nuget: WeihanLi.Npoi,2.5.0" -u "WeihanLi.Npoi"

Local dll reference:

dotnet-exec 'CsvHelper.GetCsvText(new[]{1,2,3}).Dump();' -r "./out/WeihanLi.Npoi.dll" -u "WeihanLi.Npoi"

Local dll in a folder references:

dotnet-exec 'CsvHelper.GetCsvText(new[]{1,2,3}).Dump();' -r "folder: ./out" -u "WeihanLi.Npoi"

Local project reference:

dotnet-exec 'CsvHelper.GetCsvText(new[]{1,2,3}).Dump();' -r "project: ./WeihanLi.Npoi.csproj" -u "WeihanLi.Npoi"

Framework reference:

dotnet-exec 'WebApplication.Create().Run();' --reference 'framework:web'

Web framework reference in one option:

dotnet-exec 'WebApplication.Create().Run();' --web

Usings

Execute raw code with custom usings:

dotnet-exec 'WriteLine(1+1);' --using "static System.Console"

Execute script with custom reference:

dotnet-exec 'CsvHelper.GetCsvText(new[]{1,2,3}).Dump()' -r "nuget:WeihanLi.Npoi,2.5.0" -u WeihanLi.Npoi

More

Execute with additional dependencies

dotnet-exec 'typeof(LocalType).FullName.Dump();' --ad FileLocalType2.cs

dotnet-exec 'typeof(LocalType).FullName.Dump();' --addition FileLocalType2.cs

Execute with exacting references and usings from the project file

dotnet-exec 'typeof(LocalType).FullName.Dump();' --project ./Sample.csproj

Execute file with preview features:

dotnet-exec RawStringLiteral.cs --preview