= 1:
log.debug("not copying %s (output up-to-date)", src)
return dst, 0
try:
action = _copy_action[link]
except KeyError:
raise ValueError("invalid value '%s' for 'link' argument" % link)
if verbose >= 1:
if os.path.basename(dst) == os.path.basename(src):
log.info("%s %s -> %s", action, src, dir)
else:
log.info("%s %s -> %s", action, src, dst)
if dry_run:
return (dst, 1)
# If linking (hard or symbolic), use the appropriate system call
# (Unix only, of course, but that's the caller's responsibility)
if link == 'hard':
if not (os.path.exists(dst) and os.path.samefile(src, dst)):
os.link(src, dst)
elif link == 'sym':
if not (os.path.exists(dst) and os.path.samefile(src, dst)):
os.symlink(src, dst)
# Otherwise (non-Mac, not linking), copy the file contents and
# (optionally) copy the times and mode.
else:
_copy_file_contents(src, dst)
if preserve_mode or preserve_times:
st = os.stat(src)
# According to David Ascher , utime() should be done
# before chmod() (at least under NT).
if preserve_times:
os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))
if preserve_mode:
os.chmod(dst, S_IMODE(st[ST_MODE]))
return (dst, 1)
# XXX I suspect this is Unix-specific -- need porting help!
def move_file (src, dst, verbose=1, dry_run=0):
"""Move a file 'src' to 'dst'.
If 'dst' is a directory, the file will be moved into it with the same
name; otherwise, 'src' is just renamed to 'dst'. Return the new
full name of the file.
Handles cross-device moves on Unix using 'copy_file()'. What about
other systems???
"""
from os.path import exists, isfile, isdir, basename, dirname
import errno
if verbose >= 1:
log.info("moving %s -> %s", src, dst)
if dry_run:
return dst
if not isfile(src):
raise DistutilsFileError("can't move '%s': not a regular file" % src)
if isdir(dst):
dst = os.path.join(dst, basename(src))
elif exists(dst):
raise DistutilsFileError(
"can't move '%s': destination '%s' already exists" %
(src, dst))
if not isdir(dirname(dst)):
raise DistutilsFileError(
"can't move '%s': destination '%s' not a valid path" % \
(src, dst))
copy_it = 0
try:
os.rename(src, dst)
except os.error, (num, msg):
if num == errno.EXDEV:
copy_it = 1
else:
raise DistutilsFileError(
"couldn't move '%s' to '%s': %s" % (src, dst, msg))
if copy_it:
copy_file(src, dst, verbose=verbose)
try:
os.unlink(src)
except os.error, (num, msg):
try:
os.unlink(dst)
except os.error:
pass
raise DistutilsFileError(
("couldn't move '%s' to '%s' by copy/delete: " +
"delete '%s' failed: %s") %
(src, dst, src, msg))
return dst
def write_file (filename, contents):
"""Create a file with the specified name and write 'contents' (a
sequence of strings without line terminators) to it.
"""
f = open(filename, "w")
try:
for line in contents:
f.write(line + "\n")
finally:
f.close()