netlify.toml

[build]
  # Directory to change to before starting a build.
  # This is where we will look for package.json/.nvmrc/etc.
  base = "site"

  # Directory (not? relative to root of your repo) that contains the deploy-ready
  # HTML files and assets generated by the build. If a base directory has
  # been specified, include it in the publish directory path.
  publish = "public"

  # Default build command.
  command = "NODE_ENV=production npm run build"

  # Base-path relative command to determine if site has changed.
  #
  # "An exit-code of 1 indicates the contents have changed, so if your command returns that code the build process will continue per usual.
  # An exit-code of 0 indicates that the build should return early."
  # https://docs.netlify.com/configure-builds/file-based-configuration/#ignore-builds
  # diff => 1
  # no diff => 0
  # deploy if diff, ignore when no diff
  ignore = "git diff --quiet HEAD^ HEAD ."