Gulp-typescript needs greater memory when the numbers of projects increase

[ericcaigm]

Expected behavior: I create 20 projects with the following gulpfile attached below. It need set the "--max-old-space-size=8192". My question is why it needs so much memory?

When i add this code to gulp-typescript compiler.js in the bottom of "inputDone" function. inputDone() { ... this.program = undefined; --- the added

this.project.output.finish(result); }

Then it is ok, it does not need so much memory. So, do i have method to release the typescript program in the gulpfile?

Actual behavior:

Your gulpfile: const packages: IotSdkPackage[] = [ { name: 'common', project: createProject('src/common/tsconfig.json'), }, { name: 'log-serverless', project: createProject('src/log-serverless/tsconfig.json'), }, { name: 'utils', project: createProject('src/utils/tsconfig.json'), }, { name: 'lambda', project: createProject('src/lambda/tsconfig.json'), }, // other projects ];

The tasks: function buildPackage(tsPackage: IotSdkPackage) { let releaseDir = dist; return tsPackage.project .src() .pipe(tsPackage.project()) .pipe(dest(${releaseDir}/${tsPackage.name})); }

Include your gulpfile, or only the related task (with ts.createProject).

tsconfig.json

Include your tsconfig, if related to this issue.

The main tsconfig.json

{
  "compilerOptions": {
    "target": "es2017",
    "module": "commonjs",
    "allowJs": true,
    "declaration": true,
    "sourceMap": true,
    "outDir": "./dist",
    "strict": true,
    "noImplicitAny": true,
    "strictPropertyInitialization": false,
    "moduleResolution": "node",
    "baseUrl": "./",
    "paths": {
      "*": ["node_modules/*"]
    } 
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*", "test/**/*", "test-it/**/*", "tools/**/*"],
  "exclude": ["node_modules", "./node_modules", "./node_modules/*", "./node_modules/@types/node/index.d.ts", "*.js"]
}

The sub tsconfig.json in each project
{
  "extends": "../../tsconfig.json",
  "compilerOptions": {
    "baseUrl": "./"
  },
  "include": ["*.ts", "**/*.ts"]
}

Code

Include your TypeScript code, if necessary.