ci: Add Github Action that pushes packages to nuget (will replace appveyor)

.github/workflows/release_nuget.yml

@@ -0,0 +1,59 @@
+name: Nuget Release
+
+on:
+  release:
+    types: [created, edited]
+
+jobs:
+  run_tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.100
+      - name: Build/Check for compile errors (dotnet build)
+        run: dotnet build --configuration Release
+      - name: Run Unit Tests (dotnet test) # never ever release with failing tests!
+        run: dotnet test --configuration Release
+  push_release:
+    needs: run_tests
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: windows-latest
+    env:
+      ACTIONS_ALLOW_UNSECURE_COMMANDS: "true"
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.100
+      - uses: olegtarasov/get-tag@v2.1
+        id: tagTBC
+        with:
+          tagRegex: "v(\\d+\\.\\d+\\.\\d+)"
+      - name: Build/Check for compile errors (dotnet build)
+        run: dotnet build --configuration Release
+      - name: Create Package EDILibrary (dotnet pack)
+        working-directory: "EDILibrary"
+        run: dotnet pack EDILibrary.csproj --configuration Release -p:PackageVersion="${{ steps.tagTBC.outputs.tag }}"
+      - name: Setup Nuget.exe
+        uses: warrenbuckley/Setup-Nuget@v1
+      - name: Nuget push EDILibrary and EDILibrary.Core
+        working-directory: "EDILibrary"
+        # token: https://github.com/Hochfrequenz/EDILibrary/settings/secrets/actions/NUGET_ORG_PUSH_TOKEN
+        run: |
+          nuget setApiKey ${{ secrets.NUGET_ORG_PUSH_TOKEN }}
+          nuget push .\bin\Release\*.nupkg -Source https://api.nuget.org/v3/index.json -SkipDuplicate -NoSymbols
+      - name: Create Package EDILibrary.Standard (dotnet pack)
+        working-directory: "EDILibraryBase"
+        run: dotnet pack EDILibrary.Standard.csproj --configuration Release -p:PackageVersion="${{ steps.tagTBC.outputs.tag }}"
+      - name: Setup Nuget.exe
+        uses: warrenbuckley/Setup-Nuget@v1
+      - name: Nuget push EDILibrary.Standard
+        working-directory: "EDILibraryBase"
+        # token: https://github.com/Hochfrequenz/EDILibrary/settings/secrets/actions/NUGET_ORG_PUSH_TOKEN
+        run: |
+          nuget setApiKey ${{ secrets.NUGET_ORG_PUSH_TOKEN }}
+          nuget push .\bin\Release\*.nupkg -Source https://api.nuget.org/v3/index.json -SkipDuplicate -NoSymbols

README.md

@@ -1,15 +1,22 @@
-# Build status
-[![Build status](https://ci.appveyor.com/api/projects/status/bug7q8cj52n5mvam?svg=true)](https://ci.appveyor.com/project/JoschaMetze/edilibrary)
-# EDILibrary
-EDI Library for german energy market
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
+![Nuget Package](https://badgen.net/nuget/v/EdiLibrary.Core)
 
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+# EDILibrary
+EDI Library for German energy market
 
-#
 This library won't provide much value without the corresponding template files.
 These are distributed separately by Hochfrequenz. Please contact info (at) hochfrequenz.de for more information.
 
 # Development
-## I want to debug this library
+
+## I want to release a new version of this library
+Click on [Draft new Release](https://github.com/Hochfrequenz/EDILibrary/releases/new) to create a new release.
+When you create a new release, you may also create a new tag.
+Tags and releases should have a `v` prefix. So use `v1.2.3` and **not** `1.2.3`.
+
+Pushes of built packages to nuget [are only triggered on release](.github/workflows/release_nuget.yml), not on tag alone.
+Having releases instead of only tags is preferable, because of the release notes which are included in e.g. dependabot PRs.
+
+## I want to debug this library from a project that uses it
 EDILibrary comes with SourceLink enabled, so you can load its debugging symbols from nuget.
 In Visual Studio, under Settings➡Debugging **un**check "Enable Just My Code" (or follow the instructions [here](https://stackoverflow.com/a/654711/10009545))