-# -*- coding: utf-8 -*-
"""Data interface functions for the mudpy engine."""
-# Copyright (c) 2004-2014 Jeremy Stanley <fungi@yuggoth.org>. Permission
+# Copyright (c) 2004-2016 Jeremy Stanley <fungi@yuggoth.org>. Permission
# to use, copy, modify, and distribute this software is granted under
# terms provided in the LICENSE file distributed with this software.
-import codecs
import os
import re
import stat
class DataFile:
- """A file containing universe elements."""
+ """A file containing universe elements and their facets."""
def __init__(self, filename, universe):
self.filename = filename
self.load()
def load(self):
- """Read a file and create elements accordingly."""
+ """Read a file, create elements and poplulate facets accordingly."""
self.modified = False
try:
- self.data = yaml.load(open(self.filename))
+ self.data = yaml.safe_load(open(self.filename))
except FileNotFoundError:
# it's normal if the file is one which doesn't exist yet
+ log_entry = ("File %s is unavailable." % self.filename, 6)
try:
- mudpy.misc.log("Couldn't read %s file." % self.filename, 6)
+ mudpy.misc.log(*log_entry)
except NameError:
# happens when we're not far enough along in the init process
- pass
+ self.universe.setup_loglines.append(log_entry)
if not hasattr(self.universe, "files"):
self.universe.files = {}
self.universe.files[self.filename] = self
includes.append(item)
if item not in self.universe.private_files:
self.universe.private_files.append(item)
- for element in self.data:
- if element != "__control__":
- mudpy.misc.Element(element, self.universe, self.filename)
+ for node in list(self.data):
+ if node == "__control__":
+ continue
+ facet_pos = node.rfind(".") + 1
+ if not facet_pos:
+ mudpy.misc.Element(node, self.universe, self.filename,
+ old_style=True)
+ else:
+ prefix = node[:facet_pos].strip(".")
+ try:
+ element = self.universe.contents[prefix]
+ except KeyError:
+ element = mudpy.misc.Element(prefix, self.universe,
+ self.filename)
+ element.set(node[facet_pos:], self.data[node])
for include_file in includes:
if not os.path.isabs(include_file):
include_file = find_file(
def save(self):
"""Write the data, if necessary."""
+ normal_umask = 0o0022
+ private_umask = 0o0077
+ private_file_mode = 0o0600
# when modified, writeable and has content or the file exists
if self.modified and self.is_writeable() and (
# make parent directories if necessary
if not os.path.exists(os.path.dirname(self.filename)):
+ old_umask = os.umask(normal_umask)
os.makedirs(os.path.dirname(self.filename))
+ os.umask(old_umask)
# backup the file
if "__control__" in self.data and "backup_count" in self.data[
"__control__"]:
max_count = self.data["__control__"]["backup_count"]
else:
- max_count = self.universe.categories[
- "internal"
- ][
- "limits"
- ].get("default_backup_count")
+ max_count = self.universe.contents["mudpy.limit"].get(
+ "backups")
if os.path.exists(self.filename) and max_count:
backups = []
for candidate in os.listdir(os.path.dirname(self.filename)):
backups.reverse()
for old_backup in backups:
if old_backup >= max_count - 1:
- os.remove(self.filename + "." + old_backup)
+ os.remove(self.filename + "." + str(old_backup))
elif not os.path.exists(
- self.filename + "." + old_backup + 1
+ self.filename + "." + str(old_backup + 1)
):
os.rename(
- self.filename + "." + old_backup,
- self.filename + "." + old_backup + 1
+ self.filename + "." + str(old_backup),
+ self.filename + "." + str(old_backup + 1)
)
if not os.path.exists(self.filename + ".0"):
os.rename(self.filename, self.filename + ".0")
# our data file
- file_descriptor = codecs.open(self.filename, "w", "utf-8")
-
- # if it's marked private, chmod it appropriately
- if self.filename in self.universe.private_files and oct(
- stat.S_IMODE(os.stat(self.filename)[stat.ST_MODE])
- ) != 0o0600:
- os.chmod(self.filename, 0o0600)
+ if self.filename in self.universe.private_files:
+ old_umask = os.umask(private_umask)
+ file_descriptor = open(self.filename, "w")
+ if oct(stat.S_IMODE(os.stat(
+ self.filename)[stat.ST_MODE])) != private_file_mode:
+ # if it's marked private, chmod it appropriately
+ os.chmod(self.filename, private_file_mode)
+ else:
+ old_umask = os.umask(normal_umask)
+ file_descriptor = open(self.filename, "w")
+ os.umask(old_umask)
- # write, flush and close the file
- file_descriptor.write(yaml.dump(self.data))
- file_descriptor.flush()
+ # write and close the file
+ yaml.safe_dump(self.data, allow_unicode=True,
+ default_flow_style=False, stream=file_descriptor)
file_descriptor.close()
# unset the modified flag
else:
search_path = search_path[:]
- # if there's no default path, use the last element of the search path
+ # if there's no default path, use the last component of the search path
if not default_dir:
default_dir = search_path[-1]
projects / mudpy.git / blobdiff