ci: add github actions pipeline for build, test and relaese

Author: TomasPecinka

.github/workflows/ci.yml

@@ -0,0 +1,36 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  build-test:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+
+      - name: Restore
+        run: dotnet restore ExpressionTreeExplorer.sln
+
+      - name: Build
+        run: dotnet build ExpressionTreeExplorer.sln -c Release --no-restore
+
+      - name: Test
+        run: dotnet test ExpressionTreeExplorer.sln -c Release --no-build
+
+      - name: Upload VSIX artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: vsix
+          path: ExpressionTreeExplorer.Vsix/bin/Release/net8.0-windows/*.vsix
+          if-no-files-found: error

.github/workflows/release.yml

@@ -0,0 +1,86 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+
+      - name: Verify tag matches project version
+        shell: pwsh
+        run: |
+          $tag = "${{ github.ref_name }}".TrimStart('v')
+          $csproj = "ExpressionTreeExplorer.Vsix/ExpressionTreeExplorer.Vsix.csproj"
+          $version = (Select-String -Path $csproj -Pattern '<Version>(.*?)</Version>').Matches[0].Groups[1].Value
+          Write-Host "Tag version:     $tag"
+          Write-Host "Project version: $version"
+          if ($tag -ne $version) {
+            Write-Error "Tag ($tag) does not match <Version> in the .csproj ($version). Bump the project version before tagging."
+            exit 1
+          }
+
+      - name: Restore
+        run: dotnet restore ExpressionTreeExplorer.sln
+
+      - name: Build
+        run: dotnet build ExpressionTreeExplorer.sln -c Release --no-restore
+
+      - name: Test
+        run: dotnet test ExpressionTreeExplorer.sln -c Release --no-build
+
+      - name: Stage VSIX with versioned name
+        shell: pwsh
+        run: |
+          $version = "${{ github.ref_name }}".TrimStart('v')
+          $src = "ExpressionTreeExplorer.Vsix/bin/Release/net8.0-windows/ExpressionTreeExplorer.Vsix.vsix"
+          if (-not (Test-Path $src)) {
+            Write-Error "VSIX not found at $src"
+            exit 1
+          }
+          New-Item -ItemType Directory -Force -Path artifacts | Out-Null
+          Copy-Item $src "artifacts/ExpressionTreeExplorer-$version.vsix"
+
+      - name: Extract release notes from CHANGELOG
+        shell: pwsh
+        run: |
+          $version = "${{ github.ref_name }}".TrimStart('v')
+          $lines = Get-Content CHANGELOG.md
+          $notes = New-Object System.Collections.Generic.List[string]
+          $capture = $false
+          foreach ($line in $lines) {
+            if ($line -match '^## \[') {
+              if ($capture) { break }
+              if ($line -match "^## \[$([regex]::Escape($version))\]") { $capture = $true; continue }
+            }
+            elseif ($capture) {
+              $notes.Add($line)
+            }
+          }
+          $body = ($notes -join "`n").Trim()
+          if ([string]::IsNullOrWhiteSpace($body)) { $body = "Release $version" }
+          Set-Content -Path release-notes.md -Value $body -Encoding utf8
+          Write-Host "----- release notes -----"
+          Write-Host $body
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ github.ref_name }}
+          name: ${{ github.ref_name }}
+          body_path: release-notes.md
+          files: artifacts/ExpressionTreeExplorer-*.vsix