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authorOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
committerOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
commita73a964e51247ed169d322c725a3a18859f109a3 (patch)
tree3f752d117274d444bda44e85609aeac1acf313f3 /sys/lib/python/os2emxpath.py
parente64efe273fcb921a61bf27d33b230c4e64fcd425 (diff)
python, hg: tow outside the environment.
they've served us well, and can ride off into the sunset.
Diffstat (limited to 'sys/lib/python/os2emxpath.py')
-rw-r--r--sys/lib/python/os2emxpath.py423
1 files changed, 0 insertions, 423 deletions
diff --git a/sys/lib/python/os2emxpath.py b/sys/lib/python/os2emxpath.py
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--- a/sys/lib/python/os2emxpath.py
+++ /dev/null
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-# Module 'os2emxpath' -- common operations on OS/2 pathnames
-"""Common pathname manipulations, OS/2 EMX version.
-
-Instead of importing this module directly, import os and refer to this
-module as os.path.
-"""
-
-import os
-import stat
-
-__all__ = ["normcase","isabs","join","splitdrive","split","splitext",
- "basename","dirname","commonprefix","getsize","getmtime",
- "getatime","getctime", "islink","exists","lexists","isdir","isfile",
- "ismount","walk","expanduser","expandvars","normpath","abspath",
- "splitunc","curdir","pardir","sep","pathsep","defpath","altsep",
- "extsep","devnull","realpath","supports_unicode_filenames"]
-
-# strings representing various path-related bits and pieces
-curdir = '.'
-pardir = '..'
-extsep = '.'
-sep = '/'
-altsep = '\\'
-pathsep = ';'
-defpath = '.;C:\\bin'
-devnull = 'nul'
-
-# Normalize the case of a pathname and map slashes to backslashes.
-# Other normalizations (such as optimizing '../' away) are not done
-# (this is done by normpath).
-
-def normcase(s):
- """Normalize case of pathname.
-
- Makes all characters lowercase and all altseps into seps."""
- return s.replace('\\', '/').lower()
-
-
-# Return whether a path is absolute.
-# Trivial in Posix, harder on the Mac or MS-DOS.
-# For DOS it is absolute if it starts with a slash or backslash (current
-# volume), or if a pathname after the volume letter and colon / UNC resource
-# starts with a slash or backslash.
-
-def isabs(s):
- """Test whether a path is absolute"""
- s = splitdrive(s)[1]
- return s != '' and s[:1] in '/\\'
-
-
-# Join two (or more) paths.
-
-def join(a, *p):
- """Join two or more pathname components, inserting sep as needed"""
- path = a
- for b in p:
- if isabs(b):
- path = b
- elif path == '' or path[-1:] in '/\\:':
- path = path + b
- else:
- path = path + '/' + b
- return path
-
-
-# Split a path in a drive specification (a drive letter followed by a
-# colon) and the path specification.
-# It is always true that drivespec + pathspec == p
-def splitdrive(p):
- """Split a pathname into drive and path specifiers. Returns a 2-tuple
-"(drive,path)"; either part may be empty"""
- if p[1:2] == ':':
- return p[0:2], p[2:]
- return '', p
-
-
-# Parse UNC paths
-def splitunc(p):
- """Split a pathname into UNC mount point and relative path specifiers.
-
- Return a 2-tuple (unc, rest); either part may be empty.
- If unc is not empty, it has the form '//host/mount' (or similar
- using backslashes). unc+rest is always the input path.
- Paths containing drive letters never have an UNC part.
- """
- if p[1:2] == ':':
- return '', p # Drive letter present
- firstTwo = p[0:2]
- if firstTwo == '/' * 2 or firstTwo == '\\' * 2:
- # is a UNC path:
- # vvvvvvvvvvvvvvvvvvvv equivalent to drive letter
- # \\machine\mountpoint\directories...
- # directory ^^^^^^^^^^^^^^^
- normp = normcase(p)
- index = normp.find('/', 2)
- if index == -1:
- ##raise RuntimeError, 'illegal UNC path: "' + p + '"'
- return ("", p)
- index = normp.find('/', index + 1)
- if index == -1:
- index = len(p)
- return p[:index], p[index:]
- return '', p
-
-
-# Split a path in head (everything up to the last '/') and tail (the
-# rest). After the trailing '/' is stripped, the invariant
-# join(head, tail) == p holds.
-# The resulting head won't end in '/' unless it is the root.
-
-def split(p):
- """Split a pathname.
-
- Return tuple (head, tail) where tail is everything after the final slash.
- Either part may be empty."""
-
- d, p = splitdrive(p)
- # set i to index beyond p's last slash
- i = len(p)
- while i and p[i-1] not in '/\\':
- i = i - 1
- head, tail = p[:i], p[i:] # now tail has no slashes
- # remove trailing slashes from head, unless it's all slashes
- head2 = head
- while head2 and head2[-1] in '/\\':
- head2 = head2[:-1]
- head = head2 or head
- return d + head, tail
-
-
-# Split a path in root and extension.
-# The extension is everything starting at the last dot in the last
-# pathname component; the root is everything before that.
-# It is always true that root + ext == p.
-
-def splitext(p):
- """Split the extension from a pathname.
-
- Extension is everything from the last dot to the end.
- Return (root, ext), either part may be empty."""
- root, ext = '', ''
- for c in p:
- if c in ['/','\\']:
- root, ext = root + ext + c, ''
- elif c == '.':
- if ext:
- root, ext = root + ext, c
- else:
- ext = c
- elif ext:
- ext = ext + c
- else:
- root = root + c
- return root, ext
-
-
-# Return the tail (basename) part of a path.
-
-def basename(p):
- """Returns the final component of a pathname"""
- return split(p)[1]
-
-
-# Return the head (dirname) part of a path.
-
-def dirname(p):
- """Returns the directory component of a pathname"""
- return split(p)[0]
-
-
-# Return the longest prefix of all list elements.
-
-def commonprefix(m):
- "Given a list of pathnames, returns the longest common leading component"
- if not m: return ''
- s1 = min(m)
- s2 = max(m)
- n = min(len(s1), len(s2))
- for i in xrange(n):
- if s1[i] != s2[i]:
- return s1[:i]
- return s1[:n]
-
-
-# Get size, mtime, atime of files.
-
-def getsize(filename):
- """Return the size of a file, reported by os.stat()"""
- return os.stat(filename).st_size
-
-def getmtime(filename):
- """Return the last modification time of a file, reported by os.stat()"""
- return os.stat(filename).st_mtime
-
-def getatime(filename):
- """Return the last access time of a file, reported by os.stat()"""
- return os.stat(filename).st_atime
-
-def getctime(filename):
- """Return the creation time of a file, reported by os.stat()."""
- return os.stat(filename).st_ctime
-
-# Is a path a symbolic link?
-# This will always return false on systems where posix.lstat doesn't exist.
-
-def islink(path):
- """Test for symbolic link. On OS/2 always returns false"""
- return False
-
-
-# Does a path exist?
-# This is false for dangling symbolic links.
-
-def exists(path):
- """Test whether a path exists"""
- try:
- st = os.stat(path)
- except os.error:
- return False
- return True
-
-lexists = exists
-
-
-# Is a path a directory?
-
-def isdir(path):
- """Test whether a path is a directory"""
- try:
- st = os.stat(path)
- except os.error:
- return False
- return stat.S_ISDIR(st.st_mode)
-
-
-# Is a path a regular file?
-# This follows symbolic links, so both islink() and isdir() can be true
-# for the same path.
-
-def isfile(path):
- """Test whether a path is a regular file"""
- try:
- st = os.stat(path)
- except os.error:
- return False
- return stat.S_ISREG(st.st_mode)
-
-
-# Is a path a mount point? Either a root (with or without drive letter)
-# or an UNC path with at most a / or \ after the mount point.
-
-def ismount(path):
- """Test whether a path is a mount point (defined as root of drive)"""
- unc, rest = splitunc(path)
- if unc:
- return rest in ("", "/", "\\")
- p = splitdrive(path)[1]
- return len(p) == 1 and p[0] in '/\\'
-
-
-# Directory tree walk.
-# For each directory under top (including top itself, but excluding
-# '.' and '..'), func(arg, dirname, filenames) is called, where
-# dirname is the name of the directory and filenames is the list
-# of files (and subdirectories etc.) in the directory.
-# The func may modify the filenames list, to implement a filter,
-# or to impose a different order of visiting.
-
-def walk(top, func, arg):
- """Directory tree walk whth callback function.
-
- walk(top, func, arg) calls func(arg, d, files) for each directory d
- in the tree rooted at top (including top itself); files is a list
- of all the files and subdirs in directory d."""
- try:
- names = os.listdir(top)
- except os.error:
- return
- func(arg, top, names)
- exceptions = ('.', '..')
- for name in names:
- if name not in exceptions:
- name = join(top, name)
- if isdir(name):
- walk(name, func, arg)
-
-
-# Expand paths beginning with '~' or '~user'.
-# '~' means $HOME; '~user' means that user's home directory.
-# If the path doesn't begin with '~', or if the user or $HOME is unknown,
-# the path is returned unchanged (leaving error reporting to whatever
-# function is called with the expanded path as argument).
-# See also module 'glob' for expansion of *, ? and [...] in pathnames.
-# (A function should also be defined to do full *sh-style environment
-# variable expansion.)
-
-def expanduser(path):
- """Expand ~ and ~user constructs.
-
- If user or $HOME is unknown, do nothing."""
- if path[:1] != '~':
- return path
- i, n = 1, len(path)
- while i < n and path[i] not in '/\\':
- i = i + 1
- if i == 1:
- if 'HOME' in os.environ:
- userhome = os.environ['HOME']
- elif not 'HOMEPATH' in os.environ:
- return path
- else:
- try:
- drive = os.environ['HOMEDRIVE']
- except KeyError:
- drive = ''
- userhome = join(drive, os.environ['HOMEPATH'])
- else:
- return path
- return userhome + path[i:]
-
-
-# Expand paths containing shell variable substitutions.
-# The following rules apply:
-# - no expansion within single quotes
-# - no escape character, except for '$$' which is translated into '$'
-# - ${varname} is accepted.
-# - varnames can be made out of letters, digits and the character '_'
-# XXX With COMMAND.COM you can use any characters in a variable name,
-# XXX except '^|<>='.
-
-def expandvars(path):
- """Expand shell variables of form $var and ${var}.
-
- Unknown variables are left unchanged."""
- if '$' not in path:
- return path
- import string
- varchars = string.letters + string.digits + '_-'
- res = ''
- index = 0
- pathlen = len(path)
- while index < pathlen:
- c = path[index]
- if c == '\'': # no expansion within single quotes
- path = path[index + 1:]
- pathlen = len(path)
- try:
- index = path.index('\'')
- res = res + '\'' + path[:index + 1]
- except ValueError:
- res = res + path
- index = pathlen - 1
- elif c == '$': # variable or '$$'
- if path[index + 1:index + 2] == '$':
- res = res + c
- index = index + 1
- elif path[index + 1:index + 2] == '{':
- path = path[index+2:]
- pathlen = len(path)
- try:
- index = path.index('}')
- var = path[:index]
- if var in os.environ:
- res = res + os.environ[var]
- except ValueError:
- res = res + path
- index = pathlen - 1
- else:
- var = ''
- index = index + 1
- c = path[index:index + 1]
- while c != '' and c in varchars:
- var = var + c
- index = index + 1
- c = path[index:index + 1]
- if var in os.environ:
- res = res + os.environ[var]
- if c != '':
- res = res + c
- else:
- res = res + c
- index = index + 1
- return res
-
-
-# Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A/B.
-
-def normpath(path):
- """Normalize path, eliminating double slashes, etc."""
- path = path.replace('\\', '/')
- prefix, path = splitdrive(path)
- while path[:1] == '/':
- prefix = prefix + '/'
- path = path[1:]
- comps = path.split('/')
- i = 0
- while i < len(comps):
- if comps[i] == '.':
- del comps[i]
- elif comps[i] == '..' and i > 0 and comps[i-1] not in ('', '..'):
- del comps[i-1:i+1]
- i = i - 1
- elif comps[i] == '' and i > 0 and comps[i-1] != '':
- del comps[i]
- else:
- i = i + 1
- # If the path is now empty, substitute '.'
- if not prefix and not comps:
- comps.append('.')
- return prefix + '/'.join(comps)
-
-
-# Return an absolute path.
-def abspath(path):
- """Return the absolute version of a path"""
- if not isabs(path):
- path = join(os.getcwd(), path)
- return normpath(path)
-
-# realpath is a no-op on systems without islink support
-realpath = abspath
-
-supports_unicode_filenames = False