javascript - How to delete a file in NX generator - Stack Overflow

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According to /recipes/generators/creating-files

Generators provide an API for managing files within your workspace. You can use generators to do things such as create, update, move, and delete files.

it's possible to delete files in an NX generator.

I have the following code that generates a node application but I want to delete some of the generated files.

import { readProjectConfiguration, Tree } from '@nrwl/devkit';
import { applicationGenerator } from '@nrwl/node'

export interface Schema {
  name: string
}

export default async function (tree: Tree, schema: Schema) {

  // create node application with name `schema.name`
  await applicationGenerator(tree, {
    name: schema.name
  })

  const projectRoot = readProjectConfiguration(tree, schema.name).sourceRoot
  if (!projectRoot) throw new Error(`${schema.name} is not a project found in project configuration`)

  // here I want to delete generated files:
  // apps/myapp/src/app/.gitkeep
  // apps/myapp/src/assets/.gitkeep
  // apps/myapp/src/environments/environment.prod.ts
  // apps/myapp/src/environments/environment.ts
}

Output

CREATE apps/myapp/src/app/.gitkeep
CREATE apps/myapp/src/assets/.gitkeep
CREATE apps/myapp/src/environments/environment.prod.ts
CREATE apps/myapp/src/environments/environment.ts
CREATE apps/myapp/src/main.ts
CREATE apps/myapp/tsconfig.app.json
CREATE apps/myapp/tsconfig.json
CREATE apps/myapp/project.json
CREATE apps/myapp/.eslintrc.json
CREATE apps/myapp/jest.config.ts
CREATE apps/myapp/tsconfig.spec.json

What API is used for deleting files?

According to https://nx.dev/recipes/generators/creating-files

Generators provide an API for managing files within your workspace. You can use generators to do things such as create, update, move, and delete files.

it's possible to delete files in an NX generator.

I have the following code that generates a node application but I want to delete some of the generated files.

import { readProjectConfiguration, Tree } from '@nrwl/devkit';
import { applicationGenerator } from '@nrwl/node'

export interface Schema {
  name: string
}

export default async function (tree: Tree, schema: Schema) {

  // create node application with name `schema.name`
  await applicationGenerator(tree, {
    name: schema.name
  })

  const projectRoot = readProjectConfiguration(tree, schema.name).sourceRoot
  if (!projectRoot) throw new Error(`${schema.name} is not a project found in project configuration`)

  // here I want to delete generated files:
  // apps/myapp/src/app/.gitkeep
  // apps/myapp/src/assets/.gitkeep
  // apps/myapp/src/environments/environment.prod.ts
  // apps/myapp/src/environments/environment.ts
}

Output

CREATE apps/myapp/src/app/.gitkeep
CREATE apps/myapp/src/assets/.gitkeep
CREATE apps/myapp/src/environments/environment.prod.ts
CREATE apps/myapp/src/environments/environment.ts
CREATE apps/myapp/src/main.ts
CREATE apps/myapp/tsconfig.app.json
CREATE apps/myapp/tsconfig.json
CREATE apps/myapp/project.json
CREATE apps/myapp/.eslintrc.json
CREATE apps/myapp/jest.config.ts
CREATE apps/myapp/tsconfig.spec.json

What API is used for deleting files?

• javascript
• nrwl-nx
• nrwl
• nx-devkit

Share Improve this question Follow edited Nov 14, 2022 at 13:36 Andrew Allen asked Nov 14, 2022 at 13:24 Andrew AllenAndrew Allen 8,13277 gold badges3737 silver badges8080 bronze badges

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 9

Turned out to be very simple.

tree.delete(filePath)

In my case,

  ...
  // Delete generated files:
  // apps/myapp/src/app/.gitkeep
  // apps/myapp/src/assets/.gitkeep
  // apps/myapp/src/environments/environment.prod.ts
  // apps/myapp/src/environments/environment.ts

  tree.delete(joinPathFragments(projectRoot, 'src/app'))
  tree.delete(joinPathFragments(projectRoot, 'src/assets'))
  tree.delete(joinPathFragments(projectRoot, 'src/environments'))

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