Getting version number for package in Github Actions

I'm trying to set up my "first" GitHub action to publish the NuGet package of .NET library to my private GitHub Packages registry.

I want my action to get the version number of the package from the .csproj file. I'm trying to follow the instructions here but looks like they hard-code the version number: https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-nuget-registry

How do I get the version number from the .csproj file?

Here's my release.yml file so far:

name: Publish MyApp NuGet to GitHub Packages

on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3
    - name: Setup .NET
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: 6.0.x
    - name: Restore dependencies
      run: dotnet restore
    - name: Build
      run: dotnet build --no-restore
      
  package:
  
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3
    - name: Create NuGet package
      run: dotnet pack --configuration Release
  
  publish:
  
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3
    - name: Publish to GitHub Packages
      run: dotnet nuget push "bin/Release/MyApp.1.0.0.nupkg" --source "github"

And here's the nuget.config file:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <packageSources>
        <clear />
        <add key="github" value="https://nuget.pkg.github.com/MY_GITHUB_COMPANY_ACCOUNT/index.json" />
    </packageSources>
    <packageSourceCredentials>
        <github>
            <add key="Username" value="MY_GITHUB_USERNAME" />
            <add key="ClearTextPassword" value="MY_GITHUB_PERSONAL_ACCESS_TOKEN" />
        </github>
    </packageSourceCredentials>
</configuration>

And here's the section in .csproj file where I define package related info:

<PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
    <Authors>MyCompany, LLC</Authors>
    <Company>MyCompany, LLC</Company>
    <Description>MyApp Library</Description>
    <Version>1.2.1</Version>
    <RepositoryUrl>https://github.com/MY_GITHUB_COMPANY_ACCOUNT/my-app</RepositoryUrl>
    <Copyright>MyCompany, LLC (c) 2015 - 2023</Copyright>
</PropertyGroup>

Try using the Get CSProj Version GH Action. This action should retrieve the current version from a .NET .csproj project file and provide the output that can be used in the next steps.

Example:

...

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Get version
        id: package_version
        uses: KageKirin/get-csproj-version@v1.0.0
        with:
          file: src/project.csproj # Specify your .csproj file path

      - name: Publish to GitHub Packages
        run: dotnet nuget push "bin/Release/MyApp.${{ steps.test.package_version.version }}.nupkg" --source "github"

Similar action: get-net-sdk-project-versions-action