NPM task is not causing an expected error if npmVersion is not set

With the following configuration, I noticed that the gradle npm task is not failing when it should. I tested this by running the npm run test task directly from the same directory and it returned the expected linting error (so there's an error yet the gradle task passes without any of the expected error output).

Command: ./gradlew lint
Ouput:

> Task :gateway:lint

> gateway@0.0.0 debug /my/user/project/modules/gateway
> npx lint


BUILD SUCCESSFUL in 0s
2 actionable tasks: 1 executed, 1 up-to-date

Command: npm run lint
Output:

> gateway@0.0.0 lint /my/user/project/modules/gateway
> npx tslint -p tsconfig.json -c tslint.json


ERROR: /my/user/project/modules/gateway/src/server/user-auth/service.ts:14:61 - Missing semicolon

npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! gateway@0.0.0 lint: `npx tslint -p tsconfig.json -c tslint.json`
npm ERR! Exit status 2

build.gradle

node {
    version = "10.15.0"
    download = true
}

task lint(type: NpmTask) {
    args = ['run', 'lint']
}

package.json

"scripts": {
    "lint": "npx tslint -p tsconfig.json -c tslint.json"
},

I've tried debugging this with a few scenarios:

•    "scripts": {
       "lint": "exit 1"
    },
  

  • This failed as expected

•    "scripts": {
       "lint": "echo $(pwd)"
    },
  

  • This prints the expected root directory of the module

I suspect it might have to do with the gradle output 1 up-to-date, which I believe is part of the incremental build system. If that's the problem how do you recommend getting past it?

Start with the NpmTask configuration shown in build.gradle and the lint script in package.json, then inspect how the plugin handles npmVersion and Gradle's up-to-date checks. Reproduce both ./gradlew lint and npm run lint with the provided configuration. Done means the Gradle task reports the lint failure and propagates its nonzero exit status.