introduce compiledYamlCache

Author: KSDaemon

packages/cubejs-schema-compiler/src/compiler/DataSchemaCompiler.ts

@@ -70,6 +70,7 @@ export type DataSchemaCompilerOptions = {
   compileContext?: any;
   allowNodeRequire?: boolean;
   compiledScriptCache: LRUCache<string, vm.Script>;
+  compiledYamlCache: LRUCache<string, string>;
 };
 
 export type TranspileOptions = {
@@ -145,6 +146,8 @@ export class DataSchemaCompiler {
 
   private readonly compiledScriptCache: LRUCache<string, vm.Script>;
 
+  private readonly compiledYamlCache: LRUCache<string, string>;
+
   private compileV8ContextCache: vm.Context | null = null;
 
   // FIXME: Is public only because of tests, should be private
@@ -178,6 +181,7 @@ export class DataSchemaCompiler {
     this.workerPool = null;
     this.compilerId = options.compilerId || 'default';
     this.compiledScriptCache = options.compiledScriptCache;
+    this.compiledYamlCache = options.compiledYamlCache;
   }
 
   public compileObjects(compileServices: CompilerInterface[], objects, errorsReport: ErrorReporter) {
@@ -635,6 +639,15 @@ export class DataSchemaCompiler {
     errorsReport: ErrorReporter,
     { cubeNames, cubeSymbols, contextSymbols, transpilerNames, compilerId, stage }: TranspileOptions
   ): Promise<(FileContent | undefined)> {
+    const cacheKey = crypto.createHash('md5').update(JSON.stringify(file.content)).digest('hex');
+
+    if (this.compiledYamlCache.has(cacheKey)) {
+      file.content = this.compiledYamlCache.get(cacheKey)!;
+      file.convertedToJs = true;
+
+      return { ...file };
+    }
+
     /* if (getEnv('transpilationNative')) {
 
     } else */ if (getEnv('transpilationWorkerThreads')) {
@@ -653,6 +666,8 @@ export class DataSchemaCompiler {
       file.content = res.content;
       file.convertedToJs = true;
 
+      this.compiledYamlCache.set(cacheKey, res.content);
+
       return { ...file, content: res.content };
     } else {
       const transpiledFile = this.yamlCompiler.transpileYamlFile(file, errorsReport);
@@ -665,6 +680,8 @@ export class DataSchemaCompiler {
         file.convertedToJs = true;
       }
 
+      this.compiledYamlCache.set(cacheKey, transpiledFile?.content || '');
+
       return transpiledFile;
     }
   }

packages/cubejs-schema-compiler/src/compiler/PrepareCompiler.ts

@@ -37,6 +37,7 @@ export type PrepareCompilerOptions = {
   headCommitId?: string;
   adapter?: string;
   compiledScriptCache?: LRUCache<string, vm.Script>;
+  compiledYamlCache?: LRUCache<string, string>;
 };
 
 export interface CompilerInterface {
@@ -59,6 +60,7 @@ export const prepareCompiler = (repo: SchemaFileRepository, options: PrepareComp
   const yamlCompiler = new YamlCompiler(cubeSymbols, cubeDictionary, nativeInstance, viewCompiler);
 
   const compiledScriptCache = options.compiledScriptCache || new LRUCache<string, vm.Script>({ max: 250 });
+  const compiledYamlCache = options.compiledYamlCache || new LRUCache<string, string>({ max: 250 });
 
   const transpilers: TranspilerInterface[] = [
     new ValidationTranspiler(),
@@ -79,6 +81,7 @@ export const prepareCompiler = (repo: SchemaFileRepository, options: PrepareComp
     transpilers,
     viewCompilationGate,
     compiledScriptCache,
+    compiledYamlCache,
     viewCompilers: [viewCompiler],
     cubeCompilers: [cubeEvaluator, joinGraph, metaTransformer],
     contextCompilers: [contextEvaluator],