cache introspection and generate in parallel

Author: tocsoft

Tocsoft.GraphQLCodeGen.Cli/Program.cs

@@ -101,16 +101,23 @@ public static void MainApplication(CommandLineApplication app)
 
                 IEnumerable<CodeGeneratorSettings> settings = settingsLoader.GenerateSettings(loaderSettings, sourceArgument.Values);
                 HashSet<string> generatedFiles = new HashSet<string>();
-                foreach (CodeGeneratorSettings s in settings)
-                {
-                    CodeGenerator generator = new CodeGenerator(consoleLoger, s);
 
-                    if (await generator.GenerateAsync())
+                var tasks = settings.Select(Generate).ToList();
+                Task Generate(CodeGeneratorSettings s)
+                {
+                    return Task.Run(async () =>
                     {
-                        // generated code in here
-                        generatedFiles.Add(s.OutputPath);
-                    }
+                        CodeGenerator generator = new CodeGenerator(consoleLoger, s);
+                        if (await generator.GenerateAsync())
+                        {
+                            // generated code in here
+                            generatedFiles.Add(s.OutputPath);
+                        }
+                    });
                 }
+
+                await Task.WhenAll(tasks);
+
                 if (inMsbuildMode)
                 {
                     foreach (string result in generatedFiles)

Tocsoft.GraphQLCodeGen.Cli/SchemaIntrospection/JsonIntrospection.cs

@@ -18,8 +18,14 @@ public Task<string> LoadSchema(SchemaSource source)
         {
             if (!parseCache.TryGetValue(source.Location, out var schema))
             {
-                schema = ConvertJsonToSchema(File.ReadAllText(source.Location));
-                parseCache.Add(source.Location, schema);
+                lock (parseCache)
+                {
+                    if (!parseCache.TryGetValue(source.Location, out schema))
+                    {
+                        schema = ConvertJsonToSchema(File.ReadAllText(source.Location));
+                        parseCache.Add(source.Location, schema);
+                    }
+                }
             }
             return Task.FromResult(schema);
         }