Tell us about your environment

• ESLint Version: v6.8.0
• Node Version: v12.14.0
• npm Version: v6.13.4

What parser (default, Babel-ESLint, etc.) are you using?

default

Please show your full configuration:

module.exports = {
    parserOptions: {
        ecmaVersion: 2015,
        sourceType: "module"
    },
};

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

Online Demo Link

/* eslint no-duplicate-imports: ["error", { "includeExports": true }] */

import foo from 'foo';
export * from 'foo';

import { a } from 'bar';
export * from 'bar';

import * as ns from 'baz';
export * from 'baz';

export { a as b } from 'quux';
export * from 'quux';

export { default } from 'quuux';
export * from 'quuux';

eslint index.js

What did you expect to happen?

I think no errors. The rule requires only 1 import/export statement per source module. I'm not sure how to rewrite any of these 5 examples to achieve that. Or any other code with export * and another import/export from the same source, including the test case:

{
    code: "import os from \"os\";\nexport * from \"os\";",
    options: [{ includeExports: true }],
    errors: [{ messageId: "exportAs", data: { module: "os" }, type: "ExportAllDeclaration" }]
}

If I'm not missing something, this rule should probably ignore export *.

What actually happened? Please include the actual, raw output from ESLint.

Errors for all 5 export * declarations:

   4:1  error  'foo' export is duplicated as import  no-duplicate-imports
   7:1  error  'bar' export is duplicated as import  no-duplicate-imports
  10:1  error  'baz' export is duplicated as import  no-duplicate-imports
  13:1  error  'quux' export is duplicated           no-duplicate-imports
  16:1  error  'quuux' export is duplicated          no-duplicate-imports

Are you willing to submit a pull request to fix this bug?

Yes.