from __future__ import print_function
import __builtin__, sys, contextlib, StringIO
from md import fluid
__all__ = (
'display', 'read', 'current_input_port', 'current_output_port',
'output_to_string', 'input_from_string',
'output_to_file', 'input_from_file'
)
## Default to None. This let's the cells play more nicely with code
## that changes sys.stdout/sys.stderr directly (like doctest).
## Binding directly to sys.stdout / sys.stderr is more ideal.
CURRENT_OUTPUT_PORT = fluid.cell(None, type=fluid.acquired)
CURRENT_INPUT_PORT = fluid.cell(None, type=fluid.acquired)
def current_output_port():
return CURRENT_OUTPUT_PORT.value or sys.stdout
def current_input_port():
return CURRENT_INPUT_PORT.value or sys.stdin
def display(*args, **kwargs):
kwargs.setdefault('file', current_output_port())
return __builtin__.print(*args, **kwargs)
def read(*args):
return current_input_port().read(*args)
@contextlib.contextmanager
def output_to_string(*args):
"""zippers optionally accept a procedure that returns the email
address of the current user. This is the default."""
return 'Anonymous <*****@*****.**>'
def now():
"""The default method for determining the time a commit is
made."""
return time.time()
## The commit message is dynamically parameterized.
MESSAGE = fluid.cell('', type=fluid.private)
message = fluid.accessor(MESSAGE)
## To maintain the logical key/value space, commits use manifests and
## checkpoints use changesets. A manifest is a complete snapshot of
## the space; a changeset is a delta.
class RefMap(tree):
@classmethod
def __adapt__(cls, other):
if isinstance(obj, Mapping):
obj = obj.iteritems()
if not isinstance(obj, basestring) and isinstance(obj, Iterable):
values = cls.type
def anonymous():
"""zippers optionally accept a procedure that returns the email
address of the current user. This is the default."""
return 'Anonymous <*****@*****.**>'
def now():
"""The default method for determining the time a commit is
made."""
return time.time()
## The commit message is dynamically parameterized.
MESSAGE = fluid.cell('', type=fluid.private)
message = fluid.accessor(MESSAGE)
## To maintain the logical key/value space, commits use manifests and
## checkpoints use changesets. A manifest is a complete snapshot of
## the space; a changeset is a delta.
class RefMap(tree):
@classmethod
def __adapt__(cls, other):
if isinstance(obj, Mapping):
obj = obj.iteritems()
if not isinstance(obj, basestring) and isinstance(obj, Iterable):
values = cls.type
from md import fluid
from .. import avro, data
__all__ = (
'RepoError', 'repository', 'repository_transaction', 'source', 'use',
'branches', 'make_branch', 'open_branch', 'get_branch', 'save_branch',
'remove_branch',
'get', 'find', 'new', 'update', 'delete', 'delta'
)
RepoError = data.RepoError
## The current branch and repository are accessible in the dynamic
## context. They can be set globally using the init() method.
REPOSITORY = fluid.cell(None, type=fluid.acquired)
repository = fluid.accessor(REPOSITORY)
SOURCE = fluid.cell(None, type=fluid.acquired)
source = fluid.accessor(SOURCE)
def init_api(zs, created=False):
"""Set the global branch; this should be done near the beginning
of a program. See load.init()."""
REPOSITORY.set(zs.open())
if created:
with repository_transaction('Make initial branches.'):
make_branch('live', publish='')
make_branch('staging', publish='live')
if require and not user:
raise ValueError('User does not exist: %r.' % name)
return user
def valid_user(obj):
if isinstance(obj, User):
return obj
return get_user(obj, True)
def is_admin(obj):
return valid_user(obj).admin
### Dynamic Environment
CURRENT_USER = fluid.cell(fluid.UNDEFINED, validate=valid_user, type=fluid.acquired)
user = fluid.accessor(CURRENT_USER)
def set_user(user):
CURRENT_USER.set(user)
return user
CURRENT_AUTH = fluid.cell(None, type=fluid.acquired)
authenticator = fluid.accessor(CURRENT_AUTH)
def init_auth(auth=None, service=None, host=None):
"""Initialize the authentication service. See load.init()."""
auth = auth or LocalAuth(service, host)
CURRENT_AUTH.set(auth)
return auth
def leaf(obj):
"""Is this object a leaf object?"""
try:
return obj.__leaf__()
except AttributeError:
## This is a little weird, but the default value is True
## because being a non-leaf node is opt-in.
return True
### Dynamic Context
# The original input sequence
COLLECTION = fluid.cell(())
collection = fluid.accessor(COLLECTION)
# The currently focused item
FOCUS = fluid.cell()
focus = fluid.accessor(FOCUS)
# The index of the currently focused item.
INDEX = fluid.cell()
index = fluid.accessor(INDEX)
### Top Level
def Path(exprs):
if isinstance(exprs, Sequence):
def valid_user(obj):
if isinstance(obj, User):
return obj
return get_user(obj, True)
def is_admin(obj):
return valid_user(obj).admin
### Dynamic Environment
CURRENT_USER = fluid.cell(fluid.UNDEFINED,
validate=valid_user,
type=fluid.acquired)
user = fluid.accessor(CURRENT_USER)
def set_user(user):
CURRENT_USER.set(user)
return user
CURRENT_AUTH = fluid.cell(None, type=fluid.acquired)
authenticator = fluid.accessor(CURRENT_AUTH)
def init_auth(auth=None, service=None, host=None):
"""Initialize the authentication service. See load.init()."""
def changed():
return (c.cursor for c in current_journal().changed())
### Journal
class acquire_memory(fluid.acquired):
def localize(self, loc):
if isinstance(loc.value, Journal):
return self.make_location(find_memory(loc.value))
else:
return super(acquire_memory, self).localize(loc)
def find_memory(journal):
while journal.source:
journal = journal.source
return journal
JOURNAL = fluid.cell(type=acquire_memory)
current_journal = fluid.accessor(JOURNAL, name='current_journal')
def current_memory():
return find_memory(current_journal())
def initialize(mem=None):
journal = JOURNAL.value
if isinstance(journal, Journal) and not isinstance(journal, Memory):
raise RuntimeError('Cannot uninitialize a transaction', journal)
JOURNAL.value = mem or memory()
"""tests -- unit tests
Copyright (c) 2009, Coptix, Inc. All rights reserved.
See the LICENSE file for license terms and warranty disclaimer.
"""
from __future__ import absolute_import
import unittest
from md import fluid
from . import *
## Fluid parameters representing configuration values or request
## parameters.
USER = fluid.cell()
PASS = fluid.cell()
SERV = fluid.cell('test-service')
HOST = fluid.cell('example.net')
## User database and authentication.
USERS = {'*****@*****.**': 'baz'}
AUTH = SimpleAuth(DigestMD5Password, USERS, USER.get, PASS.get, SERV.get,
HOST.get)
class TestRFC(unittest.TestCase):
"""Test the RFC parser."""
def setUp(self):
from . import rfc
self.headers = rfc.items(min=1,
from md import fluid
CURRENT_REQUEST = fluid.cell(None, type=fluid.private)
current_request = fluid.accessor(CURRENT_REQUEST, 'request')
class RequestMiddleware(object):
def process_request(self, request):
CURRENT_REQUEST.value = request
def leaf(obj):
"""Is this object a leaf object?"""
try:
return obj.__leaf__()
except AttributeError:
## This is a little weird, but the default value is True
## because being a non-leaf node is opt-in.
return True
### Dynamic Context
# The original input sequence
COLLECTION = fluid.cell(())
collection = fluid.accessor(COLLECTION)
# The currently focused item
FOCUS = fluid.cell()
focus = fluid.accessor(FOCUS)
# The index of the currently focused item.
INDEX = fluid.cell()
index = fluid.accessor(INDEX)
### Top Level
def Path(exprs):
if isinstance(exprs, Sequence):
"""tests -- unit tests
Copyright (c) 2009, Coptix, Inc. All rights reserved.
See the LICENSE file for license terms and warranty disclaimer.
"""
from __future__ import absolute_import
import unittest
from md import fluid
from . import *
## Fluid parameters representing configuration values or request
## parameters.
USER = fluid.cell()
PASS = fluid.cell()
SERV = fluid.cell('test-service')
HOST = fluid.cell('example.net')
## User database and authentication.
USERS = { '*****@*****.**': 'baz' }
AUTH = SimpleAuth(
DigestMD5Password, USERS, USER.get, PASS.get, SERV.get, HOST.get
)
class TestRFC(unittest.TestCase):
"""Test the RFC parser."""
def setUp(self):
from . import rfc
