.NET Collector
Analyze .NET projects to collect project structure, target frameworks, NuGet dependencies, and test project identification. Supports C#, F#, and VB.NET with SDK-style and legacy projects.
dotnet to your lunar-config.yml:uses: github://earthly/lunar-lib/collectors/dotnet@v1.0.0
What This Integration Collects
This integration includes 3 collectors that gather metadata from your systems.
project
Detects .NET project structure including project files (.csproj, .fsproj, .vbproj), solution files (.sln), SDK configuration (global.json), MSBuild properties (Directory.Build.props), target frameworks, project types, and SDK versions. Writes project metadata to .lang.dotnet.
dependencies
Extracts NuGet dependencies from project files, including direct dependencies, project references, and dependency locking status (packages.lock.json). Writes dependency data to .lang.dotnet.dependencies.
cicd
Records every dotnet command executed in CI pipelines along with the .NET SDK version. Writes command strings and version info to .lang.dotnet.cicd for audit trails and build reproducibility analysis.
How Collectors Fit into Lunar
Lunar watches your code and CI/CD systems to collect SDLC data from config files, test results, IaC, deployment configurations, security scans, and more.
Collectors are the automatic data-gathering layer. They extract structured metadata from your repositories and pipelines, feeding it into Lunar's centralized database where guardrails evaluate it to enforce your engineering standards.
Learn How Lunar Works →Example Collected Data
This collector writes structured metadata to the Component JSON. Here's an example of the data it produces:
{
"lang": {
"dotnet": {
"sdk_version": "8.0.100",
"target_frameworks": ["net8.0"],
"project_files": [
{
"path": "MyApp/MyApp.csproj",
"type": "csharp",
"output_type": "Exe",
"target_framework": "net8.0"
}
],
"solution_files": ["MyApp.sln"],
"global_json_exists": true,
"directory_build_props_exists": false,
"packages_lock_exists": true,
"test_projects": [
{
"path": "MyApp.Tests/MyApp.Tests.csproj",
"type": "csharp",
"test_framework": "xunit"
}
],
"source": { "tool": "dotnet", "integration": "code" },
"dependencies": {
"direct": [
{
"name": "Microsoft.Extensions.Hosting",
"version": "8.0.0",
"type": "package"
}
],
"project_references": [
{
"path": "MyLibrary/MyLibrary.csproj"
}
],
"source": { "tool": "dotnet", "integration": "code" }
},
"cicd": {
"cmds": [
{"cmd": "dotnet restore", "version": "8.0.100"},
{"cmd": "dotnet build --configuration Release", "version": "8.0.100"},
{"cmd": "dotnet test --no-build", "version": "8.0.100"}
],
"source": {"tool": "dotnet", "integration": "ci"}
}
}
}
}Documentation
View on GitHub.NET Collector
Collects .NET/C# project information, dependencies, and test project detection.
Overview
This collector gathers metadata about .NET projects including project structure detection, target frameworks, NuGet dependencies, project references, and test project identification. It supports C#, F#, and VB.NET projects with both SDK-style and legacy project formats. Code hooks analyze project files statically to extract build and dependency information.
Collected Data
This collector writes to the following Component JSON paths:
| Path | Type | Description |
|---|---|---|
.lang.dotnet |
object | .NET project metadata (SDK version, frameworks, project files, test projects) |
.lang.dotnet.dependencies |
object | NuGet packages and project references from project files |
.lang.dotnet.cicd |
object | CI/CD command tracking with SDK version |
Collectors
This plugin provides the following collectors (use include to select a subset):
| Collector | Hook Type | Description |
|---|---|---|
project |
code | Detects .NET project structure, target frameworks, SDK versions, test projects |
dependencies |
code | Extracts NuGet dependencies and project references from project files |
cicd |
ci-before-command | Tracks dotnet commands in CI with SDK version |
Installation
Add to your lunar-config.yml:
collectors:
- uses: github://earthly/lunar-lib/collectors/dotnet@v1.0.0
on: ["domain:your-domain"] # replace with your own domain or tags
# include: [project, dependencies] # Only include specific subcollectors
Open Source
This collector is open source and available on GitHub. Contribute improvements, report issues, or fork it for your own use.
Common Use Cases
Explore guardrails that use data from .NET Collector.
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