old_contents: #!/usr/bin/env python3
  
  import os
  import subprocess
  import sys
  
  
  cc_mapping = {'gcc': 'g++', 'clang': 'clang++'}
  thisdir = os.path.dirname(os.path.abspath(__file__))
  
  
  def update(commit, cc):
      gdt_super_dir = os.path.join(thisdir, '..', '..',)
      dockerfile = os.path.join(thisdir, 'dune-gdt-testing', 'Dockerfile')
  
      os.chdir(gdt_super_dir)
  
      cxx = cc_mapping[cc]
      commit = commit.replace('/', '_')
      repo = 'dunecommunity/dune-gdt-testing_{}'.format(cc)
      subprocess.check_call(['docker', 'build', '--no-cache=true', '-f', dockerfile,
                          '-t', '{}:{}'.format(repo, commit), '--build-arg', 'cc={}'.format(cc),
                          '--build-arg', 'cxx={}'.format(cxx), '--build-arg', 'commit={}'.format(commit),
                          '.'])
      subprocess.check_call(['docker', '--log-level="debug"', 'push', repo])
  
  
  if __name__ == '__main__':
      if len(sys.argv) > 2:
          ccs = [sys.argv[1]]
          commits = [sys.argv[2]]
      else:
          ccs = list(cc_mapping.keys())
          commits = ['master']
  
      subprocess.check_call(['docker', 'pull', 'dunecommunity/testing-base:latest'])
      for b in commits:
          for c in ccs:
              update(b, c)
      subprocess.check_call(['docker', '--log-level="debug"', 'images'])
  
new_contents: #!/usr/bin/env python3
  
  import os
  import subprocess
  import sys
  
  
  cc_mapping = {'gcc': 'g++', 'clang': 'clang++'}
  thisdir = os.path.dirname(os.path.abspath(__file__))
  
  
  def update(commit, cc):
      gdt_super_dir = os.path.join(thisdir, '..', '..',)
      dockerfile = os.path.join(thisdir, 'dune-gdt-testing', 'Dockerfile')
  
      os.chdir(gdt_super_dir)
  
      cxx = cc_mapping[cc]
      commit = commit.replace('/', '_')
      repo = 'dunecommunity/dune-gdt-testing_{}'.format(cc)
      subprocess.check_call(['docker', 'build', '--no-cache=true', '-f', dockerfile,
                          '-t', '{}:{}'.format(repo, commit), '--build-arg', 'cc={}'.format(cc),
                          '--build-arg', 'cxx={}'.format(cxx), '--build-arg', 'commit={}'.format(commit),
                          '.'])
      subprocess.check_call(['docker', 'push', repo])
  
  
  if __name__ == '__main__':
      if len(sys.argv) > 2:
          ccs = [sys.argv[1]]
          commits = [sys.argv[2]]
      else:
          ccs = list(cc_mapping.keys())
          commits = ['master']
  
      subprocess.check_call(['docker', 'pull', 'dunecommunity/testing-base:latest'])
      for b in commits:
          for c in ccs:
              update(b, c)
      subprocess.check_call(['docker', 'images'])
  
subject: fix docker call