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GH-125413: Add private metadata methods topathlib.Path.info#129897

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Merged
barneygale merged 16 commits intopython:mainfrombarneygale:gh-125413-merge-copyreader
Feb 17, 2025
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4dd7c21
GH-125413: Add private metadata methods to `pathlib.Path.info`
barneygaleFeb 9, 2025
30faab7
Fix atime/mtime copying
barneygaleFeb 9, 2025
22e065d
Simplify patch
barneygaleFeb 9, 2025
cd4a1b5
Improve naming
barneygaleFeb 9, 2025
07f89a4
Return `None` if results aren't available.
barneygaleFeb 9, 2025
2026886
Merge `_create_metadata()` and `_create_symlink_metadata()`
barneygaleFeb 9, 2025
ba4d393
Simplify patch a bit
barneygaleFeb 9, 2025
6cde4fb
Further reduce diff
barneygaleFeb 9, 2025
0871a39
Stop suppressing stat() errors from new methods
barneygaleFeb 9, 2025
89e49bf
Stop using `samefile()`, add `_file_id()` and `_device_id()`
barneygaleFeb 11, 2025
86b671f
Attempt to fix access time test
barneygaleFeb 12, 2025
f6b2249
Delete `_device_id()`
barneygaleFeb 13, 2025
47616de
Merge branch 'main' into gh-125413-merge-copyreader
barneygaleFeb 13, 2025
bc9032b
Merge branch 'main' into gh-125413-merge-copyreader
barneygaleFeb 16, 2025
6c03d51
Merge branch 'main' into gh-125413-merge-copyreader
encukouFeb 17, 2025
13db1fe
`_create_metadata` -> `_copy_metadata`
barneygaleFeb 17, 2025
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Improve naming
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@barneygale
barneygale committedFeb 9, 2025
commitcd4a1b51702b2cb26d08e3772caa8725c3f6471a
101 changes: 53 additions & 48 deletionsLib/pathlib/_os.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -323,33 +323,35 @@ def _create_metadata(self, source):
"""Copy metadata from the given path to our path."""
target = self._path
info = source.info
copy_times_ns = hasattr(info, '_get_atime_ns') and hasattr(info, '_get_mtime_ns')
copy_xattrs = hasattr(info, '_get_xattrs') and hasattr(os, 'setxattr')
copy_mode = hasattr(info, '_get_mode')
copy_flags = hasattr(info, '_get_flags') and hasattr(os, 'chflags')

copy_times_ns = hasattr(info, '_access_time_ns') and hasattr(info, '_mod_time_ns')
if copy_times_ns:
atime_ns = info._get_atime_ns()
mtime_ns = info._get_mtime_ns()
if atime_ns and mtime_ns:
os.utime(target, ns=(atime_ns, mtime_ns))
access_time_ns = info._access_time_ns()
mod_time_ns = info._mod_time_ns()
if access_time_ns and mod_time_ns:
os.utime(target, ns=(access_time_ns, mod_time_ns))

copy_xattrs = hasattr(info, '_xattrs') and hasattr(os, 'setxattr')
if copy_xattrs:
xattrs = info._get_xattrs()
xattrs = info._xattrs()
for attr, value in xattrs:
try:
os.setxattr(target, attr, value)
except OSError as e:
if e.errno not in (EPERM, ENOTSUP, ENODATA, EINVAL, EACCES):
raise
if copy_mode:
mode = info._get_mode()
if mode:
os.chmod(target, S_IMODE(mode))
if copy_flags:
flags = info._get_flags()
if flags:

copy_posix_permissions = hasattr(info, '_posix_permissions')
if copy_posix_permissions:
posix_permissions = info._posix_permissions()
if posix_permissions:
os.chmod(target, posix_permissions)

copy_bsd_flags = hasattr(info, '_bsd_flags') and hasattr(os, 'chflags')
if copy_bsd_flags:
bsd_flags = info._bsd_flags()
if bsd_flags:
try:
os.chflags(target,flags)
os.chflags(target,bsd_flags)
except OSError as why:
if why.errno not in (EOPNOTSUPP, ENOTSUP):
raise
Expand All@@ -358,43 +360,46 @@ def _create_symlink_metadata(self, source):
"""Copy metadata from the given symlink to our symlink."""
target = self._path
info = source.info
copy_times_ns = (hasattr(info, '_get_atime_ns') and
hasattr(info, '_get_mtime_ns') and

copy_times_ns = (hasattr(info, '_access_time_ns') and
hasattr(info, '_mod_time_ns') and
os.utime in os.supports_follow_symlinks)
copy_xattrs = (hasattr(info, '_get_xattrs') and
if copy_times_ns:
access_time_ns = info._access_time_ns(follow_symlinks=False)
mod_time_ns = info._mod_time_ns(follow_symlinks=False)
if access_time_ns and mod_time_ns:
os.utime(target, ns=(access_time_ns, mod_time_ns), follow_symlinks=False)

copy_xattrs = (hasattr(info, '_xattrs') and
hasattr(os, 'setxattr') and
os.setxattr in os.supports_fd)
copy_mode = (hasattr(info, '_get_mode') and
hasattr(os, 'lchmod'))
copy_flags = (hasattr(info, '_get_flags') and
hasattr(os, 'chflags') and
os.chflags in os.supports_follow_symlinks)

if copy_times_ns:
atime_ns = info._get_atime_ns(follow_symlinks=False)
mtime_ns = info._get_mtime_ns(follow_symlinks=False)
if atime_ns and mtime_ns:
os.utime(target, ns=(atime_ns, mtime_ns), follow_symlinks=False)
if copy_xattrs:
xattrs = info._get_xattrs(follow_symlinks=False)
xattrs = info._xattrs(follow_symlinks=False)
for attr, value in xattrs:
try:
os.setxattr(target, attr, value, follow_symlinks=False)
except OSError as e:
if e.errno not in (EPERM, ENOTSUP, ENODATA, EINVAL, EACCES):
raise
if copy_mode:
mode = info._get_mode(follow_symlinks=False)
if mode:

copy_posix_permissions = (hasattr(info, '_posix_permissions') and
hasattr(os, 'lchmod'))
if copy_posix_permissions:
posix_permissions = info._posix_permissions(follow_symlinks=False)
if posix_permissions:
try:
os.lchmod(target,S_IMODE(mode))
os.lchmod(target,posix_permissions)
except NotImplementedError:
pass
if copy_flags:
flags = info._get_flags(follow_symlinks=False)
if flags:

copy_bsd_flags = (hasattr(info, '_bsd_flags') and
hasattr(os, 'chflags') and
os.chflags in os.supports_follow_symlinks)
if copy_bsd_flags:
bsd_flags = info._bsd_flags(follow_symlinks=False)
if bsd_flags:
try:
os.chflags(target,flags, follow_symlinks=False)
os.chflags(target,bsd_flags, follow_symlinks=False)
except OSError as why:
if why.errno not in (EOPNOTSUPP, ENOTSUP):
raise
Expand DownExpand Up@@ -476,37 +481,37 @@ def is_symlink(self):
return False
return S_ISLNK(st.st_mode)

def_get_mode(self, *, follow_symlinks=True):
"""Return the POSIX filemode, or zero if stat() fails."""
def_posix_permissions(self, *, follow_symlinks=True):
"""Return the POSIX filepermissions, or zero if stat() fails."""
st = self._stat(follow_symlinks=follow_symlinks)
if st is None:
return 0
return st.st_mode
returnS_IMODE(st.st_mode)

def_get_atime_ns(self, *, follow_symlinks=True):
def_access_time_ns(self, *, follow_symlinks=True):
"""Return the access time in nanoseconds, or zero if stat() fails."""
st = self._stat(follow_symlinks=follow_symlinks)
if st is None:
return 0
return st.st_atime_ns

def_get_mtime_ns(self, *, follow_symlinks=True):
def_mod_time_ns(self, *, follow_symlinks=True):
"""Return the modify time in nanoseconds, or zero if stat() fails."""
st = self._stat(follow_symlinks=follow_symlinks)
if st is None:
return 0
return st.st_mtime_ns

if hasattr(os.stat_result, 'st_flags'):
def_get_flags(self, *, follow_symlinks=True):
def_bsd_flags(self, *, follow_symlinks=True):
"""Return the flags, or zero if stat() fails."""
st = self._stat(follow_symlinks=follow_symlinks)
if st is None:
return 0
return st.st_flags

if hasattr(os, 'listxattr'):
def_get_xattrs(self, *, follow_symlinks=True):
def_xattrs(self, *, follow_symlinks=True):
"""Return the xattrs as a list of (attr, value) pairs, or an empty
list if extended attributes aren't supported."""
try:
Expand Down
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