Adjust to parse yaml lists

Author: cotti

src/Elastic.Documentation.Configuration/Serialization/YamlStaticContext.cs

@@ -24,5 +24,5 @@ namespace Elastic.Documentation.Configuration.Serialization;
 [YamlSerializable(typeof(ProductDto))]
 [YamlSerializable(typeof(LegacyUrlMappingDto))]
 [YamlSerializable(typeof(LegacyUrlMappingConfigDto))]
-[YamlSerializable(typeof(SynonymsConfigDto))] // Add this line
+[YamlSerializable(typeof(SynonymsConfigDto))]
 public partial class YamlStaticContext;

src/Elastic.Documentation.Configuration/Synonyms/SynonymsConfiguration.cs

@@ -2,6 +2,8 @@
 // Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
 // See the LICENSE file in the project root for more information
 
+using System.Collections.Immutable;
+
 namespace Elastic.Documentation.Configuration.Synonyms;
 
 public record SynonymsConfiguration
@@ -11,15 +13,20 @@ public record SynonymsConfiguration
 
 internal sealed record SynonymsConfigDto
 {
-	public List<string> Synonyms { get; set; } = [];
+	public List<List<string>> Synonyms { get; set; } = [];
 }
 
 public static class SynonymsConfigurationExtensions
 {
 	public static SynonymsConfiguration CreateSynonymsConfiguration(this ConfigurationFileProvider provider)
 	{
 		var synonymsFile = provider.SynonymsFile;
+
+		if (!synonymsFile.Exists)
+			return new SynonymsConfiguration { Synonyms = [] };
+
 		var synonymsDto = ConfigurationFileProvider.Deserializer.Deserialize<SynonymsConfigDto>(synonymsFile.OpenText());
-		return new SynonymsConfiguration { Synonyms = synonymsDto.Synonyms };
+		var flattenedSynonyms = synonymsDto.Synonyms.Select(sl => string.Join(',', sl)).ToImmutableArray();
+		return new SynonymsConfiguration { Synonyms = flattenedSynonyms };
 	}
 }

src/tooling/Elastic.Documentation.Tooling/DocumentationTooling.cs

@@ -77,7 +77,7 @@ public static TBuilder AddDocumentationToolingDefaults<TBuilder>(this TBuilder b
 				var versionsConfiguration = sp.GetRequiredService<VersionsConfiguration>();
 				var products = sp.GetRequiredService<ProductsConfiguration>();
 				var legacyUrlMappings = sp.GetRequiredService<LegacyUrlMappingConfiguration>();
-				var synonyms = sp.GetRequiredService<SynonymsConfiguration>(); // Add this line
+				var synonyms = sp.GetRequiredService<SynonymsConfiguration>();
 				return new ConfigurationContext
 				{
 					ConfigurationFileProvider = configurationFileProvider,