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Building the SBOM tool from source.

The SBOM tool is a cross-platform tool written in C# and is compiled using .NET 6. Follow the instructions below to build the tool from source.

Prerequisites

Understanding the source structure

All the source code for the tool lives in the src folder, and the tests in the test folder. The core engine that drives the sbom tool to generate SBOMs lives in the Microsoft.Sbom.Api project.

The code is designed to be as extensible as possible and all the interfaces that can be use to extend the SBOM tool are placed in the Microsoft.Sbom.Extensions project. Once such extension is the IManifestGenerator interface. The SBOM tool uses this interface to serialize a SBOM to a specific format, in our case, the Microsoft.Sbom.Parsers.Spdx22SbomParser project implements this interface and allows the SBOM tool to serialize a SBOM to specifically the SPDX 2.2 format. The extensions project has additional interfaces that are used to extend the SBOM tool.

The Microsoft.Sbom.Common project contains any common code, constants, etc that are used by all the projects in this solution.

The Microsoft.Sbom.Contracts project defines the interfaces that are used to call the SBOM tool through a C# API. The ISBOMGenerator class defines two methods that can be used to directly call the SBOM tool from C# code directly. The Microsoft.Sbom.Tool project defines a CLI interface to talk to the SBOM tool.

Building on Visual Studio

Start Visual Studio 2022, and open the Microsoft.Sbom.sln file in the root of the repository. You can press Ctrl + Shift + b or select Build from the menu to build the application.

  1. Set the Microsoft.Sbom.Tool project as the startup project (rightclick-> Set as Startup Project)
  2. Set Run arguments for the Microsoft.Sbom.Tool project (rightclick->properties->Debug)
    Minimum: generate -b <drop path> -bc <build components path> -pn <package name> -pv <package version> -ps <company name> -nsb <namespace uri base>
  3. Now, any time you make a change, you can press F5. This will build the changes, and start the process in debug mode (hitting any breakpoints you set)

You can follow this small tutorial to get started with Visual Studio.

Building on the command line

Go to the shell of your choice, make sure that the Dotnet SDK is installed and available on the PATH for the shell. Navigate to the root of the repository and execute the following command to build the repository.

dotnet build

You can run the tool using this minimal command

dotnet run --project src/Microsoft.Sbom.Tool generate -- -b <drop path> -bc <build components path> -pn <package name> -pv <package version> -ps <company name> -nsb <namespace uri base>

Building using Codespaces

If you have access to GitHub Codespaces, select the Code button from the repository homepage then select Open with Codespaces. That's it! You have a full developer environment that supports debugging, testing, auto complete, jump to definition, everything you would expect.

Building using Docker

Make sure you use linux system.

Clone this repo and build the docker image.

git clone https://github.com/microsoft/sbom-tool
cd sbom-tool
docker build . -t ms_sbom_tool

You can then use the tool, by mounting the directories to be scanned using docker bind mounts.