old_contents: import os
  import subprocess
  from django.core.management.base import BaseCommand, CommandError
  from django.conf import settings
  from wagtailnetlify.models import Deployment
  
  try:
      from wagtail.contrib.redirects.models import Redirect
  except ImportError:  # Wagtail < 2.0
      from wagtail.wagtailredirects.models import Redirect
  
  
  class Command(BaseCommand):
  
      help = 'Deploys your baked Wagtail site to Netlify'
  
      def build_redirects(self):
          # Redirects are configured in a file called '_redirects' at the root of the build directory
          if not hasattr(settings,'BUILD_DIR'):
              raise CommandError('BUILD_DIR is not defined in settings')
          redirect_file = os.path.join(settings.BUILD_DIR, '_redirects')
          fo = open(redirect_file, 'w')
          fo.write('# Redirects from what the browser requests to what we serve\n')
          # for each redirect, write old path, new url, status code
          count = 0
          for redirect in Redirect.objects.all():
              status_code = '302'
              if redirect.is_permanent:
                  status_code = '301'
              fo.write('%s\t%s\t%s\n' % (redirect.old_path, redirect.link, status_code))
              count += 1
          fo.close()
          self.stdout.write("Written %s redirect(s) to %s" % (count, redirect_file))
  
      def deploy(self):
          """
          Deploy the contents of `BUILD_DIR` to Netlify,
          using `NETLIFY_SITE_ID` and `NETLIFY_API_TOKEN` if available.
          """
  
          netlify_cli = getattr(settings, 'NETLIFY_PATH', None)
          if not netlify_cli:
              raise CommandError('NETLIFY_PATH is not defined in settings')
  
          deployment = Deployment()
          deployment.save()
  
          command = [netlify_cli, 'deploy']
          command.append('--dir={}'.format(settings.BUILD_DIR))
          command.append('--prod')
  
          site_id = getattr(settings, 'NETLIFY_SITE_ID', None)
          if site_id:
              command.append('--site={}'.format(site_id))
  
          auth_token = getattr(settings, 'NETLIFY_API_TOKEN', None)
          if auth_token:
              command.append('--auth={}'.format(auth_token))
  
          subprocess.call(command)
  
      def handle(self, *args, **options):
          self.build_redirects()
          self.deploy()
  
new_contents: import os
  import subprocess
  from django.core.management.base import BaseCommand, CommandError
  from django.conf import settings
  from wagtailnetlify.models import Deployment
  
  try:
      from wagtail.contrib.redirects.models import Redirect
  except ImportError:  # Wagtail < 2.0
      from wagtail.wagtailredirects.models import Redirect
  
  
  class Command(BaseCommand):
  
      help = 'Deploys your baked Wagtail site to Netlify'
  
      def build_redirects(self):
          # Redirects are configured in a file called '_redirects' at the root of the build directory
          if not hasattr(settings,'BUILD_DIR'):
              raise CommandError('BUILD_DIR is not defined in settings')
          redirect_file = os.path.join(settings.BUILD_DIR, '_redirects')
          fo = open(redirect_file, 'w')
          fo.write('# Redirects from what the browser requests to what we serve\n')
          # for each redirect, write old path, new url, status code
          count = 0
          for redirect in Redirect.objects.all():
              status_code = '302'
              if redirect.is_permanent:
                  status_code = '301'
              fo.write('%s\t%s\t%s\n' % (redirect.old_path, redirect.link, status_code))
              count += 1
          fo.close()
          self.stdout.write("Written %s redirect(s) to %s" % (count, redirect_file))
  
      def deploy(self):
          """
          Deploy the contents of `BUILD_DIR` to Netlify,
          using `NETLIFY_SITE_ID` and `NETLIFY_API_TOKEN` if available.
          """
  
          netlify_cli = getattr(settings, 'NETLIFY_PATH', None)
          if not netlify_cli:
              raise CommandError('NETLIFY_PATH is not defined in settings')
  
          deployment = Deployment()
          deployment.save()
  
          command = [netlify_cli, 'deploy']
          command.append('--dir={}'.format(settings.BUILD_DIR))
          command.append('--prod')
          command.append('--message="Wagtail Deployment #{}"'.format(deployment.pk))
  
          site_id = getattr(settings, 'NETLIFY_SITE_ID', None)
          if site_id:
              command.append('--site={}'.format(site_id))
  
          auth_token = getattr(settings, 'NETLIFY_API_TOKEN', None)
          if auth_token:
              command.append('--auth={}'.format(auth_token))
  
          subprocess.call(command)
  
      def handle(self, *args, **options):
          self.build_redirects()
          self.deploy()
  
subject: Add deployment message