C#: implement C# loader plugin

.github/workflows/release-csharp.yml

@@ -0,0 +1,62 @@
+name: Release C#
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  release:
+    name: Release cmd/protoc-gen-csharp-tableau-loader
+    runs-on: ubuntu-latest
+    if: startsWith(github.event.release.tag_name, 'cmd/protoc-gen-csharp-tableau-loader/')
+    strategy:
+      matrix:
+        goos: [linux, darwin, windows]
+        goarch: [amd64, arm64]
+        exclude:
+          - goos: linux
+            goarch: arm64
+          - goos: windows
+            goarch: arm64
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.21.x"
+
+      - name: Download dependencies
+        run: |
+          cd cmd/protoc-gen-csharp-tableau-loader
+          go mod download
+      - name: Prepare build directory
+        run: |
+          mkdir -p build/
+          cp README.md build/
+          cp LICENSE build/
+      - name: Build
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+        run: |
+          cd cmd/protoc-gen-csharp-tableau-loader
+          go build -trimpath -o $GITHUB_WORKSPACE/build
+      - name: Create package
+        id: package
+        run: |
+          PACKAGE_NAME=protoc-gen-csharp-tableau-loader.${GITHUB_REF#refs/tags/cmd/protoc-gen-csharp-tableau-loader/}.${{ matrix.goos }}.${{ matrix.goarch }}.tar.gz
+          tar -czvf $PACKAGE_NAME -C build .
+          echo ::set-output name=name::${PACKAGE_NAME}
+      - name: Upload asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: ./${{ steps.package.outputs.name }}
+          asset_name: ${{ steps.package.outputs.name }}
+          asset_content_type: application/gzip

.github/workflows/testing-csharp.yml

@@ -0,0 +1,69 @@
+name: Testing C#
+
+# Trigger on pushes, PRs (excluding documentation changes), and nightly.
+on:
+  push:
+    branches: [master, main]
+  pull_request:
+  schedule:
+    - cron: 0 0 * * * # daily at 00:00
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            gen_script: bash gen.sh
+          - os: windows-latest
+            gen_script: cmd /c gen.bat
+
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v6
+
+      - name: Install Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: 1.21.x
+          cache: true
+
+      - name: Install .NET SDK
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Install dependencies (Ubuntu)
+        if: runner.os == 'Linux'
+        run: sudo apt-get update && sudo apt-get install -y cmake ninja-build
+
+      - name: Install dependencies (Windows)
+        if: runner.os == 'Windows'
+        run: choco install cmake ninja -y
+
+      - name: Setup MSVC (Windows)
+        if: runner.os == 'Windows'
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Init submodules and build protobuf
+        shell: bash
+        run: bash init.sh
+
+      - name: Generate protoconf
+        working-directory: test/csharp-tableau-loader
+        run: ${{ matrix.gen_script }}
+
+      - name: Build
+        working-directory: test/csharp-tableau-loader
+        run: dotnet build
+
+      - name: Run loader
+        working-directory: test/csharp-tableau-loader
+        run: dotnet run

.gitignore

@@ -39,7 +39,11 @@ node_modules
 
 cmd/protoc-gen-cpp-tableau-loader/protoc-gen-cpp-tableau-loader
 cmd/protoc-gen-go-tableau-loader/protoc-gen-go-tableau-loader
+cmd/protoc-gen-csharp-tableau-loader/protoc-gen-csharp-tableau-loader
 
 test/go-tableau-loader/go-tableau-loader
 _lab/ts/src/protoconf
 coverage.txt
+!test/testdata/bin/
+test/csharp-tableau-loader/protoconf
+

README.md

@@ -64,6 +64,20 @@ The official config loader for [Tableau](https://github.com/tableauio/tableau).
 
 - [Protocol Buffers Go Reference](https://protobuf.dev/reference/go/)
 
+## C#
+
+### Requirements
+
+- Unity 2022.3 LTS (C# 9)
+- dotnet-sdk-8.0
+
+### Test
+
+- Install: **dotnet-sdk-8.0**
+- Change dir: `cd test/csharp-tableau-loader`
+- Generate protoconf: `sh gen.sh`
+- Test: `dotnet run`
+
 ## TypeScript
 
 ### Requirements

cmd/protoc-gen-csharp-tableau-loader/embed.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"embed"
+	"path"
+
+	"github.com/tableauio/loader/cmd/protoc-gen-csharp-tableau-loader/helper"
+	"google.golang.org/protobuf/compiler/protogen"
+)
+
+//go:embed embed/*
+var efs embed.FS
+
+// generateEmbed generates related registry files.
+func generateEmbed(gen *protogen.Plugin) {
+	entries, err := efs.ReadDir("embed")
+	if err != nil {
+		panic(err)
+	}
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+
+		g := gen.NewGeneratedFile(entry.Name(), "")
+		helper.GenerateFileHeader(gen, nil, g, version)
+		// refer: [embed: embed path on different OS cannot open file](https://github.com/golang/go/issues/45230)
+		content, err := efs.ReadFile(path.Join("embed", entry.Name()))
+		if err != nil {
+			panic(err)
+		}
+		g.P(string(content))
+	}
+}