Refactor writing linkRegistrySnapshot to AssemblerRepositorySourcer method

Author: reakaleek

src/tooling/docs-assembler/Cli/RepositoryCommands.cs

@@ -125,14 +125,7 @@ public async Task<int> BuildAll(
 		var builder = new AssemblerBuilder(logger, assembleContext, navigation, htmlWriter, pathProvider, historyMapper);
 		await builder.BuildAllAsync(assembleSources.AssembleSets, ctx);
 
-		if (checkoutResult.LinkRegistrySnapshot is { } linkRegistry)
-		{
-			await File.WriteAllTextAsync(
-				Path.Combine(assembleContext.OutputDirectory.FullName, "docs", CheckoutResult.LinkRegistrySnapshotFileName),
-				LinkRegistry.Serialize(linkRegistry),
-				ctx
-			);
-		}
+		await cloner.WriteLinkRegistrySnapshot(checkoutResult.LinkRegistrySnapshot, ctx);
 
 		var sitemapBuilder = new SitemapBuilder(navigation.NavigationItems, assembleContext.WriteFileSystem, assembleContext.OutputDirectory);
 		sitemapBuilder.Generate();

src/tooling/docs-assembler/Sourcing/RepositorySourcesFetcher.cs

@@ -113,6 +113,12 @@ await File.WriteAllTextAsync(
 			LinkRegistrySnapshot = linkRegistry
 		};
 	}
+
+	public Task WriteLinkRegistrySnapshot(LinkRegistry linkRegistrySnapshot, Cancel ctx = default) => await File.WriteAllTextAsync(
+			Path.Combine(context.OutputDirectory.FullName, "docs", CheckoutResult.LinkRegistrySnapshotFileName),
+			LinkRegistry.Serialize(linkRegistrySnapshot),
+			ctx
+		);
 }