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Fixed #6547: Added the ignore_dangling_symlinks option to shutil.copytree

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This commit is contained in:
Tarek Ziadé 2010-04-20 08:57:33 +00:00
parent 0d2fa4a612
commit fb437513d6
4 changed files with 52 additions and 5 deletions
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22
Lib/shutil.py
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@ -147,7 +147,8 @@ def ignore_patterns(*patterns):
return set(ignored_names)
return _ignore_patterns
def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2):
def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2,
ignore_dangling_symlinks=False):
"""Recursively copy a directory tree.
The destination directory must not already exist.
@ -156,7 +157,13 @@ def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2):
If the optional symlinks flag is true, symbolic links in the
source tree result in symbolic links in the destination tree; if
it is false, the contents of the files pointed to by symbolic
links are copied.
links are copied. If the file pointed by the symlink doesn't
exist, an exception will be added in the list of errors raised in
an Error exception at the end of the copy process.
You can set the optional ignore_dangling_symlinks flag to true if you
want to silent this exception.
The optional ignore argument is a callable. If given, it
is called with the `src` parameter, which is the directory
@ -190,9 +197,16 @@ def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2):
srcname = os.path.join(src, name)
dstname = os.path.join(dst, name)
try:
if symlinks and os.path.islink(srcname):
if os.path.islink(srcname):
linkto = os.readlink(srcname)
os.symlink(linkto, dstname)
if symlinks:
os.symlink(linkto, dstname)
else:
# ignore dangling symlink if the flag is on
if not os.path.exists(linkto) and ignore_dangling_symlinks:
continue
# otherwise let the copy occurs. copy2 will raise an error
copy_function(srcname, dstname)
elif os.path.isdir(srcname):
copytree(srcname, dstname, symlinks, ignore, copy_function)
else: