Mail Archives: cygwin/2022/06/06/01:35:00
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| From: | "Cygwin coreutils Co-Maintainer" <Brian DOT Inglis AT SystematicSW DOT ab DOT ca>
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| To: | cygwin AT cygwin DOT com
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| Date: | Sun, 05 Jun 2022 23:30:12 -0600
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| Message-Id: | <announce.20220605233012.26971-1-Brian.Inglis@SystematicSW.ab.ca>
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| Subject: | [ANNOUNCEMENT] Updated: coreutils 9.1
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The following package has been in test for two weeks with no reported or
obvious issues and has now been upgraded to current stable in the Cygwin
distribution:
* coreutils 9.1
GNU core utilities (includes fileutils, shellutils and textutils)
Common core utilities include: [ arch b2sum base32 base64
basename cat chcon chgrp chmod chown chroot cksum comm cp csplit cut date
dd df dir dircolors dirname du echo env expand expr factor false fmt fold
gkill groups head hostid id install join link ln logname ls md5sum mkdir
mkfifo mknod mktemp mv nice nl nohup nproc numfmt od paste pathchk pinky
pr printenv printf ptx pwd readlink realpath rm rmdir runcon seq sha1sum
sha224sum sha256sum sha384sum sha512sum shred shuf sleep sort split stat
stdbuf stty sum sync tac tail tee test timeout touch tr true truncate
tsort tty uname unexpand uniq unlink users vdir wc who whoami yes
For more information, see the project home pages:
https://www.gnu.org/software/coreutils
https://savannah.gnu.org/projects/coreutils
In case of doubts about changes, it may be useful to check the FAQ or
Gotchas:
https://www.gnu.org/software/coreutils/faq/coreutils-faq.html
https://www.pixelbeat.org/docs/coreutils-gotchas.html
For the many changes since the previous Cygwin release, see below or
read /usr/share/doc/coreutils/NEWS after installation; for complete
details see:
https://github.com/coreutils/coreutils/blob/v9.1/NEWS
https://git.sv.gnu.org/gitweb/?p=coreutils.git;a=log;h=refs/tags/v9.1
/usr/share/doc/coreutils/ChangeLog
Noteworthy changes in release 9.1 (2022-04-15)
Bug fixes
* chmod -R no longer exits with error status when encountering symlinks.
All files would be processed correctly, but the exit status was incorrect.
[bug introduced in coreutils-9.0]
* If 'cp -Z A B' checks B's status and some other process then removes B,
cp no longer creates B with a too-generous SELinux security context
before adjusting it to the correct value.
[bug introduced in coreutils-8.17]
* 'cp --preserve=ownership A B' no longer ignores the umask when creating B.
Also, 'cp --preserve-xattr A B' is less likely to temporarily chmod u+w B.
[bug introduced in coreutils-6.7]
* On macOS, 'cp A B' no longer miscopies when A is in an APFS file system
and B is in some other file system.
[bug introduced in coreutils-9.0]
* On macOS, fmt no longer corrupts multi-byte characters
by misdetecting their component bytes as spaces.
[This bug was present in "the beginning".]
* 'id xyz' now uses the name 'xyz' to determine groups, instead of xyz's uid.
[bug introduced in coreutils-8.22]
* 'ls -v' and 'sort -V' no longer mishandle corner cases like "a..a" vs "a.+"
or lines containing NULs. Their behavior now matches the documentation
for file names like ".m4" that consist entirely of an extension,
and the documentation has been clarified for unusual cases.
[bug introduced in coreutils-7.0]
* On macOS, 'mv A B' no longer fails with "Operation not supported"
when A and B are in the same tmpfs file system.
[bug introduced in coreutils-9.0]
* 'mv -T --backup=numbered A B/' no longer miscalculates the backup number
for B when A is a directory, possibly inflooping.
[bug introduced in coreutils-6.3]
Changes in behavior
* cat now uses the copy_file_range syscall if available, when doing
simple copies between regular files. This may be more efficient, by avoiding
user space copies, and possibly employing copy offloading or reflinking.
* chown and chroot now warn about usages like "chown root.root f",
which have the nonstandard and long-obsolete "." separator that
causes problems on platforms where user names contain ".".
Applications should use ":" instead of ".".
* cksum no longer allows abbreviated algorithm names,
so that forward compatibility and robustness is improved.
* date +'%-N' now suppresses excess trailing digits, instead of always
padding them with zeros to 9 digits. It uses clock_getres and
clock_gettime to infer the clock resolution.
* dd conv=fsync now synchronizes output even after a write error,
and similarly for dd conv=fdatasync.
* dd now counts bytes instead of blocks if a block count ends in "B".
For example, 'dd count=100KiB' now copies 100 KiB of data, not
102,400 blocks of data. The flags count_bytes, skip_bytes and
seek_bytes are therefore obsolescent and are no longer documented,
though they still work.
* ls no longer colors files with capabilities by default, as file-based
capabilties are very rarely used, and lookup increases processing per file by
about 30%. It's best to use getcap [-r] to identify files with capabilities.
* ls no longer tries to automount files, reverting to the behavior
before the statx() call was introduced in coreutils-8.32.
* stat no longer tries to automount files by default, reverting to the
behavior before the statx() call was introduced in coreutils-8.32.
Only `stat --cached=never` will continue to automount files.
* timeout --foreground --kill-after=... will now exit with status 137
if the kill signal was sent, which is consistent with the behavior
when the --foreground option is not specified. This allows users to
distinguish if the command was more forcefully terminated.
New Features
* dd now supports the aliases iseek=N for skip=N, and oseek=N for seek=N,
like FreeBSD and other operating systems.
* dircolors takes a new --print-ls-colors option to display LS_COLORS
entries, on separate lines, colored according to the entry color code.
* dircolors will now also match COLORTERM in addition to TERM environment
variables. The default config will apply colors with any COLORTERM set.
Improvements
* cp, mv, and install now use openat-like syscalls when copying to a directory.
This avoids some race conditions and should be more efficient.
* On macOS, cp creates a copy-on-write clone if source and destination
are regular files on the same APFS file system, the destination does
not already exist, and cp is preserving mode and timestamps (e.g.,
'cp -p', 'cp -a').
* The new 'date' option --resolution outputs the timestamp resolution.
* With conv=fdatasync or conv=fsync, dd status=progress now reports
any extra final progress just before synchronizing output data,
since synchronizing can take a long time.
* printf now supports printing the numeric value of multi-byte characters.
* sort --debug now diagnoses issues with --field-separator characters
that conflict with characters possibly used in numbers.
* 'tail -f file | filter' now exits on Solaris when filter exits.
* root invoked coreutils, that are built and run in single binary mode,
now adjust /proc/$pid/cmdline to be more specific to the utility
being run, rather than using the general "coreutils" binary name.
Build-related
* AIX builds no longer fail because some library functions are not found.
[bug introduced in coreutils-8.32]
Noteworthy changes in release 9.0 (2021-09-24)
Bug fixes
* chmod -v no longer misreports modes of dangling symlinks.
[bug introduced in coreutils-5.3.0]
* cp -a --attributes-only now never removes destination files,
even if the destination files are hardlinked, or the source
is a non regular file.
[bug introduced in coreutils-8.6]
* csplit --suppress-matched now elides the last matched line
when a specific number of pattern matches are performed.
[bug introduced with the --suppress-matched feature in coreutils-8.22]
* df no longer outputs duplicate remote mounts in the presence of bind mounts.
[bug introduced in coreutils-8.26]
* df no longer mishandles command-line args that it pre-mounts
[bug introduced in coreutils-8.29]
* du no longer crashes on XFS file systems when the directory hierarchy is
heavily changed during the run.
[bug introduced in coreutils-8.25]
* env -S no longer crashes when given unusual whitespace characters
[bug introduced in coreutils-8.30]
* expr no longer mishandles unmatched \(...\) in regular expressions.
[bug introduced in coreutils-6.0]
* ls no longer crashes when printing the SELinux context for unstatable files.
[bug introduced in coreutils-6.9.91]
* mkdir -m no longer mishandles modes more generous than the umask.
[bug introduced in coreutils-8.22]
* nl now handles single character --section-delimiter arguments,
by assuming a second ':' character has been specified, as specified by POSIX.
[This bug was present in "the beginning".]
* pr again adjusts tabs in input, to maintain alignment in multi column output.
[bug introduced in coreutils-6.9]
* rm no longer skips an extra file when the removal of an empty directory fails.
[bug introduced by the rewrite to use fts in coreutils-8.0]
* split --number=K/N will again correctly split chunk K of N to stdout.
Previously a chunk starting after 128KiB, output the wrong part of the file.
[bug introduced in coreutils-8.26]
* tail -f no longer overruns a stack buffer when given too many files
to follow and ulimit -n exceeds 1024.
[bug introduced in coreutils-7.5]
* tr no longer crashes when using --complement with certain
invalid combinations of case character classes.
[bug introduced in coreutils-8.6]
* basenc --base64 --decode no longer silently discards decoded characters
on (1024*5) buffer boundaries
[bug introduced in coreutils-8.31]
Changes in behavior
* cp and install now default to copy-on-write (COW) if available.
* cp, install and mv now use the copy_file_range syscall if available.
Also, they use lseek+SEEK_HOLE rather than ioctl+FS_IOC_FIEMAP on sparse
files, as lseek is simpler and more portable.
* On GNU/Linux systems, ls no longer issues an error message on a
directory merely because it was removed. This reverts a change
that was made in release 8.32.
* ptx -T no longer attempts to substitute old-fashioned TeX escapes
for 8-bit non-ASCII alphabetic characters. TeX indexes should
instead use '\usepackage[latin1]{inputenc}' or equivalent.
* stat will use decomposed (major,minor) device numbers in its default format.
This is less ambiguous, and more consistent with ls.
* sum [-r] will output a file name, even if only a single name is passed.
This is consistent with sum -s, cksum, and other sum(1) implementations.
New Features
* cksum now supports the -a (--algorithm) option to select any
of the existing sum, md5sum, b2sum, sha*sum implementations etc.
cksum now subsumes all of these programs, and coreutils
will introduce no future standalone checksum utility.
* cksum -a now supports the 'sm3' argument, to use the SM3 digest algorithm.
* cksum --check now supports auto detecting the digest type to use,
when verifying tagged format checksums.
* expr and factor now support bignums on all platforms.
* ls --classify now supports the "always", "auto", or "never" flags,
to support only outputting classifier characters if connected to a tty.
* ls now accepts the --sort=width option, to sort by file name width.
This is useful to more compactly organize the default vertical column output.
* ls now accepts the --zero option, to terminate each output line with
NUL instead of newline.
* nl --line-increment can now take a negative number to decrement the count.
* stat supports more formats for representing decomposed device numbers.
%Hd,%Ld and %Hr,%Lr will output major,minor device numbers and device types
respectively. %d corresponds to st_dev and %r to std_rdev.
Improvements
* cat --show-ends will now show \r\n as ^M$. Previously the \r was taken
literally, thus overwriting the first character in the line with '$'.
* cksum [-a crc] is now up to 4 times faster by using a slice by 8 algorithm,
and at least 8 times faster where pclmul instructions are supported.
A new --debug option will indicate if pclmul is being used.
* md5sum --check now supports checksum files with CRLF line endings.
This also applies to cksum, sha*sum, and b2sum.
* df now recognizes these file systems as remote:
acfs, coda, fhgfs, gpfs, ibrix, ocfs2, and vxfs.
* rmdir now clarifies the error if a symlink_to_dir/ has not been traversed.
This is the case on GNU/Linux systems, where the trailing slash is ignored.
* stat and tail now know about the "devmem", "exfat", "secretmem", "vboxsf",
and "zonefs" file system types. stat -f -c%T now reports the file system
type, and tail -f uses polling for "vboxsf" and inotify for the others.
* timeout now supports sub-second timeouts on macOS.
* wc is up to 5 times faster when counting only new line characters,
where avx2 instructions are supported.
A new --debug option will indicate if avx2 is being used.
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