Add a website 3.0 workflow

.github/workflows/publish-site.yml

@@ -0,0 +1,36 @@
+name: Website Build
+on:
+  push:
+    branches:
+      - 'feature/website-3.0'
+  pull_request:
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build Website
+        run: |
+          git submodule update --init --recommend-shallow eng/submodules/silk.net-2.x
+          ./build.sh website
+      - name: Upload artifact
+        if: ${{ github.repository == 'dotnet/Silk.NET' && github.ref == 'refs/heads/develop/3.0' }}
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: "artifacts/docs/Silk.NET"
+  Deploy:
+    if: ${{ github.repository == 'dotnet/Silk.NET' && github.ref == 'refs/heads/develop/3.0' }}
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: Build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1

eng/build/Build.Website.cs

@@ -27,9 +27,6 @@ readonly record struct VersionDescription(
         AbsolutePath? Changelog = null
     );
 
-    // From oldest to newest. Last one is current.
-    const bool IsCurrentVersionPreview = true;
-
     [Parameter("If enabled, skips scraping the contributors for the authors.yml file of the blog.")]
     readonly bool SkipContributorsScrape;
 
@@ -107,13 +104,12 @@ await GetAuthorsContents().ToListAsync()
                 }
 
                 jsonVersions[i == versions.Length - 1 ? "current" : version.Name] = new JsonVersion(
-                    version.Changelog is { } changelog
-                        ? GetVersionFromChangelog(changelog)
+                    version.Changelog is { } changelog ? GetVersionFromChangelog(changelog)
                         : File.Exists(version.Path / "version.txt")
                             ? File.ReadAllText(version.Path / "version.txt")
-                            : Git($"describe --tags --abbrev=0", version.Path)
-                                .First(x => x.Type == OutputType.Std)
-                                .Text.Trim(),
+                        : Git($"describe --tags --abbrev=0", version.Path)
+                            .First(x => x.Type == OutputType.Std)
+                            .Text.Trim(),
                     i == versions.Length - 1 ? version.Name : null
                 );
             }