spacebetween / eslint-annotate-action

A GitHub action that takes ESLint results from a JSON file and adds them as annotated pull request comments

ESLint Annotate from Report JSON

Version 1.3.0

Description

Analyzes an ESLint a report JSON file and posts the results.

On pull_request annotates the pull request diff with warnings and errors

On push creates a ESLint Report Analysis with a summary of errors and warnings, including links to the line numbers of the violations.

Why another ESLint action?

The others I tried to use ran ESLint in NodeJS themselves. With this action, I can take an ESLint report generated from the command line and process the results.

This allows for more flexibility on how ESLint is run. This action is agnostic enough to handle different configurations, extensions, etc. across projects without making assumptions on how ESLint should be run.

Inputs

Name	Description	Required	Default Value
repo-token	The GITHUB_TOKEN secret	Yes	N/A
report-json	The path to the ESLint report JSON file	No	eslint_report.json
only-pr	Only annotate files changed when run on the pull_request event	No	true
only-changed-files	Only annotate changed files	No	false
fail-on-warning	Fail the GitHub Action when ESLint warnings are detected. Set to true to enable.	No	false

Usage Example

In .github/workflows/nodejs.yml:

name: Example NodeJS Workflow

on: [pull_request]

jobs:
  node_test:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Node.JS 14
        uses: actions/setup-node@v2
        with:
          node-version: 14
      - name: Cache node modules
        uses: actions/cache@v1
        with:
          path: ~/.npm
          key: ${{ runner.OS }}-build-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.OS }}-build-${{ env.cache-name }}-
            ${{ runner.OS }}-build-
            ${{ runner.OS }}-
      - name: Install Node Dependencies
        run: npm install
        env:
          CI: TRUE
      - name: Test Code Linting
        run: npm run lint
      - name: Save Code Linting Report JSON
        # npm script for ESLint
        # eslint --output-file eslint_report.json --format json src
        # See https://eslint.org/docs/user-guide/command-line-interface#options
        run: npm run lint:report
        # Continue to the next step even if this fails
        continue-on-error: true
      - name: Annotate Code Linting Results
        uses: ataylorme/[email protected]
        with:
          repo-token: "${{ secrets.GITHUB_TOKEN }}"
          report-json: "eslint_report.json"
      - name: Upload ESLint report
        uses: actions/upload-artifact@v2
        with:
          name: eslint_report.json
          path: eslint_report.json