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# -*- coding: utf-8 -*-
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Author: Mauro Soria
import os
import os.path
class File(object):
def __init__(self, *path_components):
self._path = FileUtils.build_path(*path_components)
self.content = None
@property
def path(self):
return self._path
@path.setter
def path(self, value):
raise NotImplementedError
def is_valid(self):
return FileUtils.is_file(self.path)
def exists(self):
return FileUtils.exists(self.path)
def can_read(self):
return FileUtils.can_read(self.path)
def can_write(self):
return FileUtils.can_write(self.path)
def read(self):
return FileUtils.read(self.path)
def update(self):
self.content = self.read()
def content(self):
if not self.content:
self.content = FileUtils.read()
return self.content()
def get_lines(self):
for line in FileUtils.get_lines(self.path):
yield line
def __cmp__(self, other):
if not isinstance(other, File):
raise NotImplementedError
if self.content() < other.content():
return -1
elif self.content() > other.content():
return 1
else:
return 0
def __enter__(self):
return self
def __exit__(self, type, value, tb):
pass
class FileUtils(object):
@staticmethod
def build_path(*path_components):
if path_components:
path = os.path.join(*path_components)
else:
path = ""
return path
@staticmethod
def get_abs_path(file_name):
return os.path.abspath(file_name)
@staticmethod
def exists(file_name):
return os.access(file_name, os.F_OK)
@staticmethod
def can_read(file_name):
try:
with open(file_name):
pass
except IOError:
return False
return True
@staticmethod
def can_read_dir(directory):
for root, _, files in os.walk(directory):
for file in files:
if not FileUtils.can_read(os.path.join(root, file)):
return False
return True
@staticmethod
def can_write(file_name):
return os.access(file_name, os.W_OK)
@staticmethod
def read(file_name):
return open(file_name, "r").read()
@staticmethod
def read_dir(directory):
data = {}
for root, _, files in os.walk(directory):
for file in files:
data[file] = FileUtils.read(os.path.join(root, file))
return data
@staticmethod
def get_lines(file_name):
with open(file_name, "r", errors="replace") as fd:
return fd.read().splitlines()
@staticmethod
def is_dir(file_name):
return os.path.isdir(file_name)
@staticmethod
def is_file(file_name):
return os.path.isfile(file_name)
@staticmethod
def create_directory(directory):
if not FileUtils.exists(directory):
os.makedirs(directory)
@staticmethod
def write_lines(file_name, lines):
if type(lines) is list:
content = "\n".join(lines)
else:
content = lines
with open(file_name, "w") as f:
f.writelines(content)
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