[19/22] AMBARI-7138. Ambari RPM deals with jinja2 dependency incorrectly (aonishuk)
http://git-wip-us.apache.org/repos/asf/ambari/blob/658360a5/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
--
diff --git
a/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
b/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
new file mode 100644
index 000..b3d6bc7
--- /dev/null
+++ b/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
@@ -0,0 +1,1118 @@
+# -*- coding: utf-8 -*-
+
+ambari_jinja2.environment
+~~
+
+Provides a class that holds runtime and parsing time options.
+
+:copyright: (c) 2010 by the Jinja Team.
+:license: BSD, see LICENSE for more details.
+
+import os
+import sys
+from ambari_jinja2 import nodes
+from ambari_jinja2.defaults import *
+from ambari_jinja2.lexer import get_lexer, TokenStream
+from ambari_jinja2.parser import Parser
+from ambari_jinja2.optimizer import optimize
+from ambari_jinja2.compiler import generate
+from ambari_jinja2.runtime import Undefined, new_context
+from ambari_jinja2.exceptions import TemplateSyntaxError, TemplateNotFound, \
+ TemplatesNotFound
+from ambari_jinja2.utils import import_string, LRUCache, Markup, missing, \
+ concat, consume, internalcode, _encode_filename
+
+
+# for direct template usage we have up to ten living environments
+_spontaneous_environments = LRUCache(10)
+
+# the function to create jinja traceback objects. This is dynamically
+# imported on the first exception in the exception handler.
+_make_traceback = None
+
+
+def get_spontaneous_environment(*args):
+Return a new spontaneous environment. A spontaneous environment is an
+unnamed and unaccessible (in theory) environment that is used for
+templates generated from a string and not from the file system.
+
+try:
+env = _spontaneous_environments.get(args)
+except TypeError:
+return Environment(*args)
+if env is not None:
+return env
+_spontaneous_environments[args] = env = Environment(*args)
+env.shared = True
+return env
+
+
+def create_cache(size):
+Return the cache class for the given size.
+if size == 0:
+return None
+if size 0:
+return {}
+return LRUCache(size)
+
+
+def copy_cache(cache):
+Create an empty copy of the given cache.
+if cache is None:
+return None
+elif type(cache) is dict:
+return {}
+return LRUCache(cache.capacity)
+
+
+def load_extensions(environment, extensions):
+Load the extensions from the list and bind it to the environment.
+Returns a dict of instanciated environments.
+
+result = {}
+for extension in extensions:
+if isinstance(extension, basestring):
+extension = import_string(extension)
+result[extension.identifier] = extension(environment)
+return result
+
+
+def _environment_sanity_check(environment):
+Perform a sanity check on the environment.
+assert issubclass(environment.undefined, Undefined), 'undefined must ' \
+ 'be a subclass of undefined because filters depend on it.'
+assert environment.block_start_string != \
+ environment.variable_start_string != \
+ environment.comment_start_string, 'block, variable and comment ' \
+ 'start strings must be different'
+assert environment.newline_sequence in ('\r', '\r\n', '\n'), \
+ 'newline_sequence set to unknown line ending string.'
+return environment
+
+
+class Environment(object):
+rThe core component of Jinja is the `Environment`. It contains
+important shared variables like configuration, filters, tests,
+globals and others. Instances of this class may be modified if
+they are not shared and if no template was loaded so far.
+Modifications on environments after the first template was loaded
+will lead to surprising effects and undefined behavior.
+
+Here the possible initialization parameters:
+
+`block_start_string`
+The string marking the begin of a block. Defaults to ``'{%'``.
+
+`block_end_string`
+The string marking the end of a block. Defaults to ``'%}'``.
+
+`variable_start_string`
+The string marking the begin of a print statement.
+Defaults to ``'{{'``.
+
+`variable_end_string`
+The string marking the end of a print statement. Defaults to
+``'}}'``.
+
+`comment_start_string`
+The string marking the begin of a comment. Defaults to ``'{#'``.
+
+`comment_end_string`
+The string marking the end of a comment. Defaults to ``'#}'``.
+
+`line_statement_prefix`
+If given and a string, this will be used as prefix for line based
+statements. See also :ref:`line-statements`.
+
+`line_comment_prefix`
+If given and a
[19/22] AMBARI-7138. Ambari RPM deals with jinja2 dependency incorrectly (aonishuk)
http://git-wip-us.apache.org/repos/asf/ambari/blob/7c3ea59f/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
--
diff --git
a/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
b/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
new file mode 100644
index 000..b3d6bc7
--- /dev/null
+++ b/ambari-common/src/main/python/ambari_jinja2/ambari_jinja2/environment.py
@@ -0,0 +1,1118 @@
+# -*- coding: utf-8 -*-
+
+ambari_jinja2.environment
+~~
+
+Provides a class that holds runtime and parsing time options.
+
+:copyright: (c) 2010 by the Jinja Team.
+:license: BSD, see LICENSE for more details.
+
+import os
+import sys
+from ambari_jinja2 import nodes
+from ambari_jinja2.defaults import *
+from ambari_jinja2.lexer import get_lexer, TokenStream
+from ambari_jinja2.parser import Parser
+from ambari_jinja2.optimizer import optimize
+from ambari_jinja2.compiler import generate
+from ambari_jinja2.runtime import Undefined, new_context
+from ambari_jinja2.exceptions import TemplateSyntaxError, TemplateNotFound, \
+ TemplatesNotFound
+from ambari_jinja2.utils import import_string, LRUCache, Markup, missing, \
+ concat, consume, internalcode, _encode_filename
+
+
+# for direct template usage we have up to ten living environments
+_spontaneous_environments = LRUCache(10)
+
+# the function to create jinja traceback objects. This is dynamically
+# imported on the first exception in the exception handler.
+_make_traceback = None
+
+
+def get_spontaneous_environment(*args):
+Return a new spontaneous environment. A spontaneous environment is an
+unnamed and unaccessible (in theory) environment that is used for
+templates generated from a string and not from the file system.
+
+try:
+env = _spontaneous_environments.get(args)
+except TypeError:
+return Environment(*args)
+if env is not None:
+return env
+_spontaneous_environments[args] = env = Environment(*args)
+env.shared = True
+return env
+
+
+def create_cache(size):
+Return the cache class for the given size.
+if size == 0:
+return None
+if size 0:
+return {}
+return LRUCache(size)
+
+
+def copy_cache(cache):
+Create an empty copy of the given cache.
+if cache is None:
+return None
+elif type(cache) is dict:
+return {}
+return LRUCache(cache.capacity)
+
+
+def load_extensions(environment, extensions):
+Load the extensions from the list and bind it to the environment.
+Returns a dict of instanciated environments.
+
+result = {}
+for extension in extensions:
+if isinstance(extension, basestring):
+extension = import_string(extension)
+result[extension.identifier] = extension(environment)
+return result
+
+
+def _environment_sanity_check(environment):
+Perform a sanity check on the environment.
+assert issubclass(environment.undefined, Undefined), 'undefined must ' \
+ 'be a subclass of undefined because filters depend on it.'
+assert environment.block_start_string != \
+ environment.variable_start_string != \
+ environment.comment_start_string, 'block, variable and comment ' \
+ 'start strings must be different'
+assert environment.newline_sequence in ('\r', '\r\n', '\n'), \
+ 'newline_sequence set to unknown line ending string.'
+return environment
+
+
+class Environment(object):
+rThe core component of Jinja is the `Environment`. It contains
+important shared variables like configuration, filters, tests,
+globals and others. Instances of this class may be modified if
+they are not shared and if no template was loaded so far.
+Modifications on environments after the first template was loaded
+will lead to surprising effects and undefined behavior.
+
+Here the possible initialization parameters:
+
+`block_start_string`
+The string marking the begin of a block. Defaults to ``'{%'``.
+
+`block_end_string`
+The string marking the end of a block. Defaults to ``'%}'``.
+
+`variable_start_string`
+The string marking the begin of a print statement.
+Defaults to ``'{{'``.
+
+`variable_end_string`
+The string marking the end of a print statement. Defaults to
+``'}}'``.
+
+`comment_start_string`
+The string marking the begin of a comment. Defaults to ``'{#'``.
+
+`comment_end_string`
+The string marking the end of a comment. Defaults to ``'#}'``.
+
+`line_statement_prefix`
+If given and a string, this will be used as prefix for line based
+statements. See also :ref:`line-statements`.
+
+`line_comment_prefix`
+If given and a
