Source.Python/addons/source-python/Python3/glob.py at master · srpg/Source.Python · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

"""Filename globbing utility."""

import os

import re

import fnmatch

__all__ = ["glob", "iglob", "escape"]

def glob(pathname, *, recursive=False):

"""Return a list of paths matching a pathname pattern.

The pattern may contain simple shell-style wildcards a la

fnmatch. However, unlike fnmatch, filenames starting with a

dot are special cases that are not matched by '*' and '?'

patterns.

If recursive is true, the pattern '**' will match any files and

zero or more directories and subdirectories.

"""

return list(iglob(pathname, recursive=recursive))

def iglob(pathname, *, recursive=False):

"""Return an iterator which yields the paths matching a pathname pattern.

The pattern may contain simple shell-style wildcards a la

fnmatch. However, unlike fnmatch, filenames starting with a

dot are special cases that are not matched by '*' and '?'

patterns.

If recursive is true, the pattern '**' will match any files and

zero or more directories and subdirectories.

"""

it = _iglob(pathname, recursive, False)

if recursive and _isrecursive(pathname):

s = next(it) # skip empty string

assert not s

return it

def _iglob(pathname, recursive, dironly):

dirname, basename = os.path.split(pathname)

if not has_magic(pathname):

assert not dironly

if basename:

if os.path.lexists(pathname):

yield pathname

else:

# Patterns ending with a slash should match only directories

if os.path.isdir(dirname):

yield pathname

return

if not dirname:

if recursive and _isrecursive(basename):

yield from _glob2(dirname, basename, dironly)

else:

yield from _glob1(dirname, basename, dironly)

return

# `os.path.split()` returns the argument itself as a dirname if it is a

# drive or UNC path. Prevent an infinite recursion if a drive or UNC path

# contains magic characters (i.e. r'\\?\C:').

if dirname != pathname and has_magic(dirname):

dirs = _iglob(dirname, recursive, True)

else:

dirs = [dirname]

if has_magic(basename):

if recursive and _isrecursive(basename):

glob_in_dir = _glob2

else:

glob_in_dir = _glob1

else:

glob_in_dir = _glob0

for dirname in dirs:

for name in glob_in_dir(dirname, basename, dironly):

yield os.path.join(dirname, name)

# These 2 helper functions non-recursively glob inside a literal directory.

# They return a list of basenames. _glob1 accepts a pattern while _glob0

# takes a literal basename (so it only has to check for its existence).

def _glob1(dirname, pattern, dironly):

names = list(_iterdir(dirname, dironly))

if not _ishidden(pattern):

names = (x for x in names if not _ishidden(x))

return fnmatch.filter(names, pattern)

def _glob0(dirname, basename, dironly):

if not basename:

# `os.path.split()` returns an empty basename for paths ending with a

# directory separator. 'q*x/' should match only directories.

if os.path.isdir(dirname):

return [basename]

else:

if os.path.lexists(os.path.join(dirname, basename)):

return [basename]

return []

# Following functions are not public but can be used by third-party code.

def glob0(dirname, pattern):

return _glob0(dirname, pattern, False)

def glob1(dirname, pattern):

return _glob1(dirname, pattern, False)

# This helper function recursively yields relative pathnames inside a literal

# directory.

def _glob2(dirname, pattern, dironly):

assert _isrecursive(pattern)

yield pattern[:0]

yield from _rlistdir(dirname, dironly)

# If dironly is false, yields all file names inside a directory.

# If dironly is true, yields only directory names.

def _iterdir(dirname, dironly):

if not dirname:

if isinstance(dirname, bytes):

dirname = bytes(os.curdir, 'ASCII')

else:

dirname = os.curdir

try:

with os.scandir(dirname) as it:

for entry in it:

try:

if not dironly or entry.is_dir():

yield entry.name

except OSError:

pass

except OSError:

return

# Recursively yields relative pathnames inside a literal directory.

def _rlistdir(dirname, dironly):

names = list(_iterdir(dirname, dironly))

for x in names:

if not _ishidden(x):

yield x

path = os.path.join(dirname, x) if dirname else x

for y in _rlistdir(path, dironly):

yield os.path.join(x, y)

magic_check = re.compile('([*?[])')

magic_check_bytes = re.compile(b'([*?[])')

def has_magic(s):

if isinstance(s, bytes):

match = magic_check_bytes.search(s)

else:

match = magic_check.search(s)

return match is not None

def _ishidden(path):

return path[0] in ('.', b'.'[0])

def _isrecursive(pattern):

if isinstance(pattern, bytes):

return pattern == b'**'

else:

return pattern == '**'

def escape(pathname):

"""Escape all special characters.

"""

# Escaping is done by wrapping any of "*?[" between square brackets.

# Metacharacters do not work in the drive part and shouldn't be escaped.

drive, pathname = os.path.splitdrive(pathname)

if isinstance(pathname, bytes):

pathname = magic_check_bytes.sub(br'[\1]', pathname)

else:

pathname = magic_check.sub(r'[\1]', pathname)

return drive + pathname

Source.Python/addons/source-python/Python3/glob.py at master · srpg/Source.Python · GitHub

Repository navigation

Expand file tree

Breadcrumbs

glob.py

Latest commit

History

Breadcrumbs

glob.py

File metadata and controls