python-tldp/tldp/sources.py

101 lines
3.5 KiB
Python

#! /usr/bin/python
from __future__ import absolute_import, division, print_function
import os
import errno
import collections
from .utils import logger
from .typeguesser import guess, knownextensions
class SourceDirs(collections.MutableMapping):
def __repr__(self):
return '<%s:(%s docs)>' % \
(self.__class__.__name__, len(self))
def __init__(self, args):
sourcedirs = [os.path.abspath(x) for x in args]
results = [os.path.exists(x) for x in sourcedirs]
if not all(results):
for result, sdir in zip(results, sourcedirs):
logger.critical("Directory does not exist: " + sdir)
raise IOError(errno.ENOENT, os.strerror(errno.ENOENT), sdir)
for sdir in sourcedirs:
docs = dict()
for fname in os.listdir(sdir):
possible = os.path.join(sdir, fname)
if os.path.isfile(possible):
this = SourceDocument(possible)
docs[this.stem] = this
elif os.path.isdir(fname):
stem = os.path.basename(fname)
for ext in knownextensions:
possible = os.path.join(sdir, fname, stem + ext)
if os.path.isfile(possible):
this = SourceDocument(possible)
if not docs.has_key(this):
docs[this.stem] = this
else:
logger.critical("Uh-oh, duplicate STEM near %s", fname)
logger.debug("Discovered %s documents in %s", len(docs), sdir)
self.update(docs)
logger.info("Discovered %s documents total", len(self))
def __delitem__(self, key):
del self.__dict__[key]
def __getitem__(self, key):
return self.__dict__[key]
def __setitem__(self, key, value):
self.__dict__[key] = value
def __iter__(self):
return iter(self.__dict__)
def __len__(self):
return len(self.__dict__)
class SourceDocument(object):
def __repr__(self):
return '<%s:%s (%s)>' % \
(self.__class__.__name__, self.filename, self.doctype)
def __init__(self, filename):
# -- canonicalize the pathname we are given.
self.filename = os.path.abspath(filename)
if not os.path.exists(self.filename):
logger.critical("Missing source document: %s", self.filename)
raise IOError(errno.ENOENT, os.strerror(errno.ENOENT), self.filename)
if not os.path.isfile(self.filename):
logger.critical("Source document is not a plain file: %s", self.filename)
raise TypeError("Wrong type, not a plain file: " + self.filename)
logger.debug("Found existing %s", self.filename)
self.dirname, self.basename = os.path.split(self.filename)
self.stem, self.ext = os.path.splitext(self.basename)
self.stat = os.stat(self.filename)
self.resources = False # -- assume no ./images/, ./resources/
self.singlefile = True # -- assume only one file
parentdir = os.path.basename(self.dirname)
if parentdir == self.stem:
self.singlefile = False
for rdir in ('resources', 'images'):
if os.path.exists(os.path.join(self.dirname, rdir)):
self.resources = True
@property
def doctype(self):
return guess(self.filename)
#
# -- end of file