fix(ui5-tooling-transpile): derive transpileDependencies from tsconfig (

#786)

packages/ui5-tooling-transpile/lib/util.js

@@ -78,7 +78,28 @@ module.exports = function (log) {
  const config = configuration || {};
 
  // if a tsconfig.json file exists, the project is a TypeScript project
- const isTypeScriptProject = fs.existsSync(path.join(cwd, "tsconfig.json"));
+ const tscJsonPath = path.join(cwd, "tsconfig.json");
+ const isTypeScriptProject = fs.existsSync(tscJsonPath);
+
+ // read package.json and tsconfig.json to determine whether to transpile dependencies or not
+ if (isTypeScriptProject && !config.transpileDependencies) {
+ const tscJson = JSON.parse(fs.readFileSync(tscJsonPath, { encoding: "utf8" }));
+ const tsDeps = tscJson?.compilerOptions?.types?.filter((typePkgName) => {
+ try {
+ // if a type dependency includes a ui5.yaml we assume
+ // to support transpiling of dependencies - and in case
+ // of the project is built already the js files are
+ // available and can be served directly without transpile
+ const ui5YamlPath = require.resolve(`${typePkgName}/ui5.yaml`, {
+ paths: [cwd]
+ });
+ return !!ui5YamlPath;
+ } catch (e) {
+ return false;
+ }
+ });
+ config.transpileDependencies = tsDeps?.length || 0 > 0;
+ }
 
  // derive whether TypeScript should be transformed or not
  const transformTypeScript = config.transformTypeScript ?? config.transpileTypeScript ?? isTypeScriptProject;

packages/ui5-tooling-transpile/test/__assets__/typescript/tsconfig.json

@@ -0,0 +1 @@
+{}

showcases/ui5-tsapp/ui5.yaml

@@ -41,7 +41,7 @@ server:
  afterMiddleware: compression
  configuration:
  <<: *cfgTranspile
- transpileDependencies: true
+ #transpileDependencies: true # detected automatically from tsconfig.json/package.json
  - name: ui5-tooling-modules-middleware
  afterMiddleware: ui5-tooling-transpile-middleware
  configuration: