cpython/Lib/shutil.py
Guido van Rossum c96207abb3 posix -> os
1992-03-31 18:55:40 +00:00

70 lines
1.6 KiB
Python

# Module 'shutil' -- utility functions usable in a shell-like program
import os
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 = os.stat(src)
mode = divmod(st[0], MODEBITS)[1]
os.chmod(dst, mode)
# Copy all stat info (mode bits, atime and mtime) from src to dst
#
def copystat(src, dst):
st = os.stat(src)
mode = divmod(st[0], MODEBITS)[1]
os.chmod(dst, mode)
os.utime(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 = os.listdir(src)
os.mkdir(dst, 0777)
dot_dotdot = (os.curdir, os.pardir)
for name in names:
if name not in dot_dotdot:
srcname = os.path.join(src, name)
dstname = os.path.join(dst, name)
#print 'Copying', srcname, 'to', dstname
try:
#if os.path.islink(srcname):
# linkto = os.readlink(srcname)
# os.symlink(linkto, dstname)
#elif os.path.isdir(srcname):
if os.path.isdir(srcname):
copytree(srcname, dstname)
else:
copy2(srcname, dstname)
# XXX What about devices, sockets etc.?
except os.error, why:
print 'Could not copy', srcname, 'to', dstname,
print '(', why[1], ')'