import yaml
-class DataFile:
+class Data:
"""A file containing universe elements and their facets."""
- def __init__(self, filename, universe):
- self.filename = filename
+ def __init__(self,
+ source,
+ universe,
+ flags=None,
+ relative=None,
+ ):
+ self.source = source
self.universe = universe
- self.data = {}
+ if flags is None:
+ self.flags = []
+ else:
+ self.flags = flags[:]
+ self.relative = relative
self.load()
def load(self):
"""Read a file, create elements and poplulate facets accordingly."""
self.modified = False
+ self.source = find_file(
+ self.source, relative=self.relative, universe=self.universe)
try:
- self.data = yaml.safe_load(open(self.filename))
+ self.data = yaml.safe_load(open(self.source))
except FileNotFoundError:
# it's normal if the file is one which doesn't exist yet
- log_entry = ("File %s is unavailable." % self.filename, 6)
+ self.data = {}
+ log_entry = ("File %s is unavailable." % self.source, 6)
try:
mudpy.misc.log(*log_entry)
except NameError:
self.universe.setup_loglines.append(log_entry)
if not hasattr(self.universe, "files"):
self.universe.files = {}
- self.universe.files[self.filename] = self
+ self.universe.files[self.source] = self
includes = []
- if "__control__" in self.data:
- if "include_files" in self.data["__control__"]:
- for included in self.data["__control__"]["include_files"]:
+ for node in list(self.data):
+ if node == "_load":
+ for included in self.data["_load"]:
included = find_file(
included,
- relative=self.filename,
+ relative=self.source,
universe=self.universe)
if included not in includes:
includes.append(included)
- if "include_dirs" in self.data["__control__"]:
- for included in [
- os.path.join(x, "__init__.yaml") for x in
- self.data["__control__"]["include_dirs"]
- ]:
- included = find_file(
- included,
- relative=self.filename,
- universe=self.universe
- )
- if included not in includes:
- includes.append(included)
- if "default_files" in self.data["__control__"]:
- origins = self.data["__control__"]["default_files"]
- for key in origins.keys():
- origins[key] = find_file(
- origins[key],
- relative=self.filename,
- universe=self.universe
- )
- if origins[key] not in includes:
- includes.append(origins[key])
- self.universe.default_origins[key] = origins[key]
- if key not in self.universe.categories:
- self.universe.categories[key] = {}
- if "private_files" in self.data["__control__"]:
- for item in self.data["__control__"]["private_files"]:
- item = find_file(
- item,
- relative=self.filename,
- universe=self.universe
- )
- if item not in includes:
- includes.append(item)
- if item not in self.universe.private_files:
- self.universe.private_files.append(item)
- 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)
+ mudpy.misc.Element(node, self.universe, self, 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 = mudpy.misc.Element(prefix, self.universe, self)
element.set(node[facet_pos:], self.data[node])
if prefix.startswith("mudpy.movement."):
self.universe.directions.add(
if not os.path.isabs(include_file):
include_file = find_file(
include_file,
- relative=self.filename,
+ relative=self.source,
universe=self.universe
)
if (include_file not in self.universe.files or not
self.universe.files[include_file].is_writeable()):
- DataFile(include_file, self.universe)
+ Data(include_file, self.universe)
def save(self):
"""Write the data, if necessary."""
# when modified, writeable and has content or the file exists
if self.modified and self.is_writeable() and (
- self.data or os.path.exists(self.filename)
+ self.data or os.path.exists(self.source)
):
# make parent directories if necessary
- if not os.path.exists(os.path.dirname(self.filename)):
+ if not os.path.exists(os.path.dirname(self.source)):
old_umask = os.umask(normal_umask)
- os.makedirs(os.path.dirname(self.filename))
+ os.makedirs(os.path.dirname(self.source))
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"]
- elif "mudpy.limit" in self.universe.contents:
+ if "mudpy.limit" in self.universe.contents:
max_count = self.universe.contents["mudpy.limit"].get(
"backups", 0)
else:
max_count = 0
- if os.path.exists(self.filename) and max_count:
+ if os.path.exists(self.source) and max_count:
backups = []
- for candidate in os.listdir(os.path.dirname(self.filename)):
+ for candidate in os.listdir(os.path.dirname(self.source)):
if re.match(
- os.path.basename(self.filename) +
+ os.path.basename(self.source) +
r"""\.\d+$""", candidate
):
backups.append(int(candidate.split(".")[-1]))
backups.reverse()
for old_backup in backups:
if old_backup >= max_count - 1:
- os.remove(self.filename + "." + str(old_backup))
+ os.remove(self.source + "." + str(old_backup))
elif not os.path.exists(
- self.filename + "." + str(old_backup + 1)
+ self.source + "." + str(old_backup + 1)
):
os.rename(
- self.filename + "." + str(old_backup),
- self.filename + "." + str(old_backup + 1)
+ self.source + "." + str(old_backup),
+ self.source + "." + str(old_backup + 1)
)
- if not os.path.exists(self.filename + ".0"):
- os.rename(self.filename, self.filename + ".0")
+ if not os.path.exists(self.source + ".0"):
+ os.rename(self.source, self.source + ".0")
# our data file
- if self.filename in self.universe.private_files:
+ if "private" in self.flags:
old_umask = os.umask(private_umask)
- file_descriptor = open(self.filename, "w")
+ file_descriptor = open(self.source, "w")
if oct(stat.S_IMODE(os.stat(
- self.filename)[stat.ST_MODE])) != private_file_mode:
+ self.source)[stat.ST_MODE])) != private_file_mode:
# if it's marked private, chmod it appropriately
- os.chmod(self.filename, private_file_mode)
+ os.chmod(self.source, private_file_mode)
else:
old_umask = os.umask(normal_umask)
- file_descriptor = open(self.filename, "w")
+ file_descriptor = open(self.source, "w")
os.umask(old_umask)
# write and close the file
self.modified = False
def is_writeable(self):
- """Returns True if the __control__ read_only is False."""
+ """Returns True if the _lock is False."""
try:
- return not self.data["__control__"].get("read_only", False)
+ return not self.data.get("_lock", False)
except KeyError:
return True
def find_file(
file_name=None,
+ category=None,
prefix=None,
relative=None,
search=None,
# start hunting for the file now
for each_path in clean_search:
+ # construct the candidate path
+ candidate = os.path.join(each_path, file_name)
+
# if the file exists and is readable, we're done
- if os.path.isfile(os.path.join(each_path, file_name)):
- file_name = os.path.realpath(os.path.join(each_path, file_name))
+ if os.path.isfile(candidate):
+ file_name = os.path.realpath(candidate)
+ break
+
+ # if the path is a directory, look for an __init__ file
+ if os.path.isdir(candidate):
+ file_name = os.path.realpath(
+ os.path.join(candidate, "__init__.yaml"))
break
# it didn't exist after all, so use the default path instead
projects / mudpy.git / blobdiff