How to auto accept changes in chromatic github workflow for main branch?

In Chromatic github workflow, how can I accept all changes automatically using the CLI option --auto-accept-changes if the branch is main?

I am using the following github chromatic workflow to deploy the components of my app in chromatic:

# .github/workflows/chromatic.yml

# Workflow name
name: 'Chromatic'

# Event for the workflow
on: push

# List of jobs
jobs:
  chromatic-deployment:
    # Operating System
    runs-on: ubuntu-latest
    # Job steps
    steps:
      - uses: actions/checkout@v1
      - name: Install dependencies
        run: yarn
        # 👇 Adds Chromatic as a step in the workflow
      - name: Publish to Chromatic
        uses: chromaui/action@v1
        # Chromatic GitHub Action options
        with:
          token: ${{ secrets.REPO_GITHUB_TOKEN }}
          # 👇 Chromatic projectToken, refer to the manage page to obtain it.
          projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}

The branch detection appears in the docs, but Im not sure how to use it in my yml file, since my action is just yarn.

Solution

You have autoAcceptChanges where you can define flag or branch name

- uses: chromaui/action@v1
  with:
    token: ${{ secrets.GITHUB_TOKEN }}
    projectToken: 'Your chromatic project token'
    buildScriptName: 'The npm script that builds your Storybook [build-storybook]'
    storybookBuildDir: 'Provide a directory with your built storybook; use if you've already built your storybook'
    allowConsoleErrors: 'Do not exit when runtime errors occur in storybook'
    autoAcceptChanges: 'Automatically accept all changes in chromatic: boolean or branchname'
    exitZeroOnChanges: 'Positive exit of action even when there are changes: boolean or branchname'
    exitOnceUploaded: 'Exit with 0 once the built version has been sent to chromatic: boolean or branchname'

so it should be:

# .github/workflows/chromatic.yml

# Workflow name
name: 'Chromatic'

# Event for the workflow
on: push

# List of jobs
jobs:
  chromatic-deployment:
    # Operating System
    runs-on: ubuntu-latest
    # Job steps
    steps:
      - uses: actions/checkout@v1
      - name: Install dependencies
        run: yarn
        # 👇 Adds Chromatic as a step in the workflow
      - name: Publish to Chromatic
        uses: chromaui/action@v1
        # Chromatic GitHub Action options
        with:
          token: ${{ secrets.REPO_GITHUB_TOKEN }}
          # 👇 Chromatic projectToken, refer to the manage page to obtain it.
          projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}
          autoAcceptChanges: 'main'