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95 lines
2.3 KiB
Python
95 lines
2.3 KiB
Python
"""Utility functions for copying files.
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XXX The functions here don't copy the data fork or other metadata on Mac.
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"""
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import os
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import stat
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def copyfile(src, dst):
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"""Copy data from src to dst"""
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fsrc = None
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fdst = None
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try:
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fsrc = open(src, 'rb')
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fdst = open(dst, 'wb')
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while 1:
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buf = fsrc.read(16*1024)
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if not buf:
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break
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fdst.write(buf)
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finally:
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if fdst:
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fdst.close()
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if fsrc:
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fsrc.close()
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def copymode(src, dst):
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"""Copy mode bits from src to dst"""
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st = os.stat(src)
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mode = stat.S_IMODE(st[stat.ST_MODE])
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os.chmod(dst, mode)
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def copystat(src, dst):
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"""Copy all stat info (mode bits, atime and mtime) from src to dst"""
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st = os.stat(src)
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mode = stat.S_IMODE(st[stat.ST_MODE])
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os.chmod(dst, mode)
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os.utime(dst, (st[stat.ST_ATIME], st[stat.ST_MODE]))
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def copy(src, dst):
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"""Copy data and mode bits ("cp src dst").
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The destination may be a directory.
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"""
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if os.path.isdir(dst):
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dst = os.path.join(dst, os.path.basename(src))
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copyfile(src, dst)
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copymode(src, dst)
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def copy2(src, dst):
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"""Copy data and all stat info ("cp -p src dst").
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The destination may be a directory.
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"""
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if os.path.isdir(dst):
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dst = os.path.join(dst, os.path.basename(src))
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copyfile(src, dst)
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copystat(src, dst)
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def copytree(src, dst, symlinks=0):
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"""Recursively copy a directory tree using copy2().
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The destination directory must not already exist.
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Error are reported to standard output.
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If the optional symlinks flag is true, symbolic links in the
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source tree result in symbolic links in the destination tree; if
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it is false, the contents of the files pointed to by symbolic
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links are copied.
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XXX Consider this example code rather than the ultimate tool.
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"""
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names = os.listdir(src)
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os.mkdir(dst)
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for name in names:
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srcname = os.path.join(src, name)
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dstname = os.path.join(dst, name)
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try:
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if symlinks and os.path.islink(srcname):
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linkto = os.readlink(srcname)
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os.symlink(linkto, dstname)
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elif os.path.isdir(srcname):
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copytree(srcname, dstname)
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else:
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copy2(srcname, dstname)
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# XXX What about devices, sockets etc.?
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except (IOError, os.error), why:
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print "Can't copy %s to %s: %s" % (`srcname`, `dstname`, str(why))
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