software/theia: fix instance error when instance is not ASCII

b'💥' is a SyntaxError in python.

Instead, switch to accessing options from option variable and apply
this to other options from this part.

This fixes this issue:

    While:
      Installing switch-softwaretype.
      Installing favicon.ico.

    An internal error occurred due to a bug in either zc.buildout or in a
    recipe being used:
    Traceback (most recent call last):
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 2360, in main
        getattr(buildout, command)(args)
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 640, in install
        self._install_parts(install_args)
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 820, in _install_parts
        installed_files = self[part]._call(recipe.install)
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 1668, in _call
        return f()
      File "slapos.cookbook-1.0.244-py3.7.egg/slapos/recipe/switch_softwaretype.py", line 108, in install
        sub_buildout.install([])
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 640, in install
        self._install_parts(install_args)
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 820, in _install_parts
        installed_files = self[part]._call(recipe.install)
      File "zc.buildout-2.7.1+slapos019-py3.7.egg/zc/buildout/buildout.py", line 1668, in _call
        return f()
      File "slapos.recipe.build-0.54-py3.7.egg/slapos/recipe/build/__init__.py", line 268, in install
        return self._shared.install(self.__install)
      File "slapos.recipe.build-0.54-py3.7.egg/slapos/recipe/__init__.py", line 150, in install
        install()
      File "slapos.recipe.build-0.54-py3.7.egg/slapos/recipe/build/__init__.py", line 278, in __install
        self._exec(self._install)
      File "slapos.recipe.build-0.54-py3.7.egg/slapos/recipe/build/__init__.py", line 261, in _exec
        code = compile(script, self.name, 'exec')
      File "favicon.ico", line 6
    SyntaxError: bytes can only contain ASCII literal characters.

software/theia/buildout.hash.cfg

@@ -15,7 +15,7 @@
 
 [instance-theia]
 _update_hash_filename_ = instance-theia.cfg.jinja.in
-md5sum = bdf824a8e09899d6da27b26706d177c5
+md5sum = 5a0caaa7004c0af8d2e8fdc7bc96a18f
 
 [instance]
 _update_hash_filename_ = instance.cfg.in

software/theia/instance-theia.cfg.jinja.in

@@ -336,14 +336,14 @@ install =
   self.buildout['buildout']['offline'] = 'false'
   try:
     gravatar_url = "https://www.gravatar.com/avatar/" + hashlib.md5(
-      b'''$${:seed}'''
+      options['seed'].encode()
     ).hexdigest() + "?s=256&d=retro"
-    shutil.copy(self.download(gravatar_url), '''$${:location}''')
+    shutil.copy(self.download(gravatar_url), options['location'])
   except Exception:
     # Because installation should work offline, if we can't download a favicon,
     # just ignore this step.
     self.logger.exception("Error while downloading favicon, using empty one")
-    open('''$${:location}''', 'w').close()
+    open(options['location'], 'w').close()
   finally:
     self.buildout['buildout']['offline'] = buildout_offline
 

software/theia/test/test.py

@@ -238,6 +238,10 @@ class TestTheia(TheiaTestCase):
     self.assertIn(b'slaprunner', self.captureSlapos('computer', 'list'))
 
 
+class TestTheiaWithNonAsciiInstanceName(TestTheia):
+  default_partition_reference = '💥'
+
+
 class TestTheiaEmbeddedSlapOSShutdown(TheiaTestCase):
   def test_stopping_instance_stops_embedded_slapos(self):
     embedded_slapos_supervisord_socket = _getSupervisordSocketPath(