def gen_obj(path,
stat=None,
chksum_handlers=None,
real_location=None,
stat_func=os.lstat,
**overrides):
"""
given a fs path, and an optional stat, create an appropriate fs obj.
:param stat: stat object to reuse if available
:param real_location: real path to the object if path is the desired
location, rather then existent location.
:raise KeyError: if no obj type matches the stat checks
:return: :obj:`pkgcore.fs.fs.fsBase` derivative
"""
if real_location is None:
real_location = path
if stat is None:
try:
stat = stat_func(real_location)
except EnvironmentError as e:
if stat_func == os.lstat or e.errno != errno.ENOENT:
raise
stat = os.lstat(real_location)
mode = stat.st_mode
d = {
"mtime": stat.st_mtime,
"mode": S_IMODE(mode),
"uid": stat.st_uid,
"gid": stat.st_gid
}
if S_ISREG(mode):
d["size"] = stat.st_size
d["data"] = local_source(real_location)
d["dev"] = stat.st_dev
d["inode"] = stat.st_ino
if chksum_handlers is not None:
d["chf_types"] = chksum_handlers
d.update(overrides)
return fsFile(path, **d)
d.update(overrides)
if S_ISDIR(mode):
return fsDir(path, **d)
elif S_ISLNK(mode):
d["target"] = os.readlink(real_location)
return fsSymlink(path, **d)
elif S_ISFIFO(mode):
return fsFifo(path, **d)
else:
major, minor = get_major_minor(stat)
d["minor"] = minor
d["major"] = major
d["mode"] = mode
return fsDev(path, **d)
def gen_obj(path, stat=None, chksum_handlers=None, real_location=None,
stat_func=os.lstat, **overrides):
"""
given a fs path, and an optional stat, create an appropriate fs obj.
:param stat: stat object to reuse if available
:param real_location: real path to the object if path is the desired
location, rather then existent location.
:raise KeyError: if no obj type matches the stat checks
:return: :obj:`pkgcore.fs.fs.fsBase` derivative
"""
if real_location is None:
real_location = path
if stat is None:
try:
stat = stat_func(real_location)
except EnvironmentError as e:
if stat_func == os.lstat or e.errno != errno.ENOENT:
raise
stat = os.lstat(real_location)
mode = stat.st_mode
d = {"mtime":stat.st_mtime, "mode":S_IMODE(mode),
"uid":stat.st_uid, "gid":stat.st_gid}
if S_ISREG(mode):
d["size"] = stat.st_size
d["data"] = local_source(real_location)
d["dev"] = stat.st_dev
d["inode"] = stat.st_ino
if chksum_handlers is not None:
d["chf_types"] = chksum_handlers
d.update(overrides)
return fsFile(path, **d)
d.update(overrides)
if S_ISDIR(mode):
return fsDir(path, **d)
elif S_ISLNK(mode):
d["target"] = os.readlink(real_location)
return fsSymlink(path, **d)
elif S_ISFIFO(mode):
return fsFifo(path, **d)
else:
major, minor = get_major_minor(stat)
d["minor"] = minor
d["major"] = major
d["mode"] = mode
return fsDev(path, **d)
def __init__(self, path, **kwds):
if any(x not in kwds for x in ("major", "minor", "mode")):
try:
st = os.lstat(path)
except FileNotFoundError:
st = None
if st is None or any(f(st.st_mode) for f in
(stat.S_ISREG, stat.S_ISDIR, stat.S_ISFIFO)):
kwds["strict"] = True
else:
major, minor = fs.get_major_minor(st)
kwds["major"] = major
kwds["minor"] = minor
kwds["mode"] = st.st_mode
super().__init__(path, **kwds)
def __init__(self, path, **kwds):
if any(x not in kwds for x in ("major", "minor", "mode")):
try:
st = os.lstat(path)
except OSError, oe:
if oe.errno != errno.ENOENT:
raise
st = None
if st is None or any(f(st.st_mode) for f in
(stat.S_ISREG, stat.S_ISDIR, stat.S_ISFIFO)):
kwds["strict"] = True
else:
major, minor = fs.get_major_minor(st)
kwds["major"] = major
kwds["minor"] = minor
kwds["mode"] = st.st_mode
def __init__(self, path, **kwds):
if any(x not in kwds for x in ("major", "minor", "mode")):
try:
st = os.lstat(path)
except OSError as oe:
if oe.errno != errno.ENOENT:
raise
st = None
if st is None or any(f(st.st_mode) for f in
(stat.S_ISREG, stat.S_ISDIR, stat.S_ISFIFO)):
kwds["strict"] = True
else:
major, minor = fs.get_major_minor(st)
kwds["major"] = major
kwds["minor"] = minor
kwds["mode"] = st.st_mode
fs.fsDev.__init__(self, path, **kwds)
d["inode"] = stat.st_ino
if chksum_handlers is not None:
d["chf_types"] = chksum_handlers
d.update(overrides)
return fsFile(path, **d)
d.update(overrides)
if S_ISDIR(mode):
return fsDir(path, **d)
elif S_ISLNK(mode):
d["target"] = os.readlink(real_location)
return fsSymlink(path, **d)
elif S_ISFIFO(mode):
return fsFifo(path, **d)
else:
major, minor = get_major_minor(stat)
d["minor"] = minor
d["major"] = major
d["mode"] = mode
return fsDev(path, **d)
# hmm. this code is roughly 25x slower then find.
# make it less slow somehow. the obj instantiation is a bit of a
# killer I'm afraid; without obj, looking at 2.3ms roughly best of 3
# 100 iterations, obj instantiation, 58ms.
# also, os.path.join is rather slow.
# in this case, we know it's always pegging one more dir on, so it's
# fine doing it this way (specially since we're relying on
# os.path.sep, not '/' :P)
