|
|
"""Notebook related utilities
|
|
|
|
|
|
Authors:
|
|
|
|
|
|
* Brian Granger
|
|
|
"""
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (C) 2011 The IPython Development Team
|
|
|
#
|
|
|
# Distributed under the terms of the BSD License. The full license is in
|
|
|
# the file COPYING, distributed as part of this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
from __future__ import print_function
|
|
|
|
|
|
import os
|
|
|
import stat
|
|
|
|
|
|
try:
|
|
|
from urllib.parse import quote, unquote
|
|
|
except ImportError:
|
|
|
from urllib import quote, unquote
|
|
|
|
|
|
from IPython.utils import py3compat
|
|
|
|
|
|
# UF_HIDDEN is a stat flag not defined in the stat module.
|
|
|
# It is used by BSD to indicate hidden files.
|
|
|
UF_HIDDEN = getattr(stat, 'UF_HIDDEN', 32768)
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
def url_path_join(*pieces):
|
|
|
"""Join components of url into a relative url
|
|
|
|
|
|
Use to prevent double slash when joining subpath. This will leave the
|
|
|
initial and final / in place
|
|
|
"""
|
|
|
initial = pieces[0].startswith('/')
|
|
|
final = pieces[-1].endswith('/')
|
|
|
stripped = [s.strip('/') for s in pieces]
|
|
|
result = '/'.join(s for s in stripped if s)
|
|
|
if initial: result = '/' + result
|
|
|
if final: result = result + '/'
|
|
|
if result == '//': result = '/'
|
|
|
return result
|
|
|
|
|
|
def path2url(path):
|
|
|
"""Convert a local file path to a URL"""
|
|
|
pieces = [ quote(p) for p in path.split(os.sep) ]
|
|
|
# preserve trailing /
|
|
|
if pieces[-1] == '':
|
|
|
pieces[-1] = '/'
|
|
|
url = url_path_join(*pieces)
|
|
|
return url
|
|
|
|
|
|
def url2path(url):
|
|
|
"""Convert a URL to a local file path"""
|
|
|
pieces = [ unquote(p) for p in url.split('/') ]
|
|
|
path = os.path.join(*pieces)
|
|
|
return path
|
|
|
|
|
|
def url_escape(path):
|
|
|
"""Escape special characters in a URL path
|
|
|
|
|
|
Turns '/foo bar/' into '/foo%20bar/'
|
|
|
"""
|
|
|
parts = py3compat.unicode_to_str(path).split('/')
|
|
|
return u'/'.join([quote(p) for p in parts])
|
|
|
|
|
|
def url_unescape(path):
|
|
|
"""Unescape special characters in a URL path
|
|
|
|
|
|
Turns '/foo%20bar/' into '/foo bar/'
|
|
|
"""
|
|
|
return u'/'.join([
|
|
|
py3compat.str_to_unicode(unquote(p))
|
|
|
for p in py3compat.unicode_to_str(path).split('/')
|
|
|
])
|
|
|
|
|
|
def is_hidden(abs_path, abs_root=''):
|
|
|
"""Is a file is hidden or contained in a hidden directory.
|
|
|
|
|
|
This will start with the rightmost path element and work backwards to the
|
|
|
given root to see if a path is hidden or in a hidden directory. Hidden is
|
|
|
determined by either name starting with '.' or the UF_HIDDEN flag as
|
|
|
reported by stat.
|
|
|
|
|
|
Parameters
|
|
|
----------
|
|
|
abs_path : unicode
|
|
|
The absolute path to check for hidden directories.
|
|
|
abs_root : unicode
|
|
|
The absolute path of the root directory in which hidden directories
|
|
|
should be check for.
|
|
|
"""
|
|
|
if not abs_root:
|
|
|
abs_root = abs_path.split(os.sep, 1)[0] + os.sep
|
|
|
inside_root = abs_path[len(abs_root):]
|
|
|
if any(part.startswith('.') for part in inside_root.split(os.sep)):
|
|
|
return True
|
|
|
|
|
|
# check UF_HIDDEN on any location up to root
|
|
|
path = abs_path
|
|
|
while path and path.startswith(abs_root) and path != abs_root:
|
|
|
st = os.stat(path)
|
|
|
if getattr(st, 'st_flags', 0) & UF_HIDDEN:
|
|
|
return True
|
|
|
path = os.path.dirname(path)
|
|
|
|
|
|
return False
|
|
|
|
|
|
|
