Use GitHub Actions to deploy

Create access token

https://github.com/settings/tokens/new

create a new access token and check repo scopes

then click Generate token at the bottom, keep the generated token safely

Create repository secrets

navigate to your <user>.github.io, then go to Settings

find and select Secrets tab, click New repository secret button

I’m going to name it PUBLISH_TOKEN, and paste the access token to the Value field

then click Add secret

Create workflows

create .github/workflows/deploy.yml to your repo

name: Publish Hugo site
 
# https://lijingcheng.github.io/posts/hugo/
on:
  push:
    branches:
      - master
 
jobs:
  build-deploy:
    runs-on: ubuntu-20.04
    steps:
    # https://github.com/actions/checkout
    - uses: actions/checkout@v2
      with:
        submodules: true
 
    # https://github.com/peaceiris/actions-hugo
    - name: Setup Hugo
      uses: peaceiris/actions-hugo@v2
      with:
        hugo-version: '0.80.0'

    - name: Build
      run: hugo --minify

    - name: Deploy
      uses: peaceiris/actions-gh-pages@v3
      with:
        # https://github.community/t/all-github-actions-suddenly-failing-with-github-token-secret-does-not-exist/16108/7
        github_token: ${{ secrets.PUBLISH_TOKEN }}
        publish_dir: ./public

then commit and push

after a while you should be able to see a new branch gh-pages in your repo

Select gh-pages branch as GitHub Pages

navigate to your <user>.github.io, then go to Settings

scroll down and find GitHub Pages section, change source branch to gh-pages branch

visit https://k265.github.io, you may wait a while after changes taking affect