cpython/Lib/shutil.py

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1990-10-13 16:23:40 -03:00
# Module 'shutil' -- utility functions usable in a shell-like program
import posix
import path
MODEBITS = 010000 # Lower 12 mode bits
# Change this to 01000 (9 mode bits) to avoid copying setuid etc.
# Copy data from src to dst
#
def copyfile(src, dst):
fsrc = open(src, 'r')
fdst = open(dst, 'w')
while 1:
buf = fsrc.read(16*1024)
if not buf: break
fdst.write(buf)
# Copy mode bits from src to dst
#
def copymode(src, dst):
st = posix.stat(src)
mode = divmod(st[0], MODEBITS)[1]
posix.chmod(dst, mode)
# Copy all stat info (mode bits, atime and mtime) from src to dst
#
def copystat(src, dst):
st = posix.stat(src)
mode = divmod(st[0], MODEBITS)[1]
posix.chmod(dst, mode)
posix.utimes(dst, st[7:9])
# Copy data and mode bits ("cp src dst")
#
def copy(src, dst):
copyfile(src, dst)
copymode(src, dst)
# Copy data and all stat info ("cp -p src dst")
#
def copy2(src, dst):
copyfile(src, dst)
copystat(src, dst)
# Recursively copy a directory tree.
# The destination must not already exist.
#
def copytree(src, dst):
names = posix.listdir(src)
posix.mkdir(dst, 0777)
dot_dotdot = '.', '..'
for name in names:
if name not in dot_dotdot:
srcname = path.cat(src, name)
dstname = path.cat(dst, name)
#print 'Copying', srcname, 'to', dstname
try:
#if path.islink(srcname):
# linkto = posix.readlink(srcname)
# posix.symlink(linkto, dstname)
#elif path.isdir(srcname):
if path.isdir(srcname):
copytree(srcname, dstname)
else:
copy2(srcname, dstname)
# XXX What about devices, sockets etc.?
except posix.error, why:
print 'Could not copy', srcname, 'to', dstname,
print '(', why[1], ')'