Paul Eggert [Mon, 21 Oct 2019 20:03:46 +0000 (13:03 -0700)]
shuf: fix bug with ‘-r -n 0’
‘shuf -r -n 0 file’ would mistakenly read from standard input.
Problem reported by my student Jingnong Qu while reimplementing a
shuf subset in Python as an exercise in UCLA Computer Science 35L:
https://web.cs.ucla.edu/classes/fall19/cs35L/assign/assign3.html
* NEWS: Mention the fix. Also, ASCIIfy a previous item.
* src/shuf.c (main): Fix bug.
* tests/misc/shuf.sh: Add a test case for the bug.
Jeff Layton [Thu, 19 Sep 2019 15:59:45 +0000 (11:59 -0400)]
ls: use statx instead of stat when available
statx allows ls to indicate interest in only certain inode metadata.
This is potentially a win on networked/clustered/distributed
file systems. In cases where we'd have to do a full, heavyweight stat()
call we can now do a much lighter statx() call.
As a real-world example, consider a file system like CephFS where one
client is actively writing to a file and another client does an
ls --color in the same directory. --color means that we need to fetch
the mode of the file.
Doing that with a stat() call means that we have to fetch the size and
mtime in addition to the mode. The MDS in that situation will have to
revoke caps in order to ensure that it has up-to-date values to report,
which disrupts the writer.
This has a measurable affect on performance. I ran a fio sequential
write test on one cephfs client and had a second client do "ls --color"
in a tight loop on the directory that held the file:
* src/stat.c: move statx to stat struct conversion to new header...
* src/statx.h: ...here.
* src/ls.c: Add wrapper functions for stat/lstat/fstat calls,
and add variants for when we are only interested in specific info.
Add statx-enabled functions and set the request mask based on the
output format and what values are needed.
* NEWS: Mention the Improvement.
Paul Eggert [Thu, 3 Oct 2019 19:41:22 +0000 (12:41 -0700)]
truncate: avoid integer-overflow assumptions
* src/truncate.c (do_ftruncate): Simplify overflow checking,
and don’t rely on theoretically-nonportable assumptions
like assuming that OFF_MAX < UINTMAX_MAX.
seq: use faster processing for integer steps from 2 to 200
* src/seq.c: (seq_fast): Accept STEP as a parameter and use that
to skip the output of generated numbers.
(main): Relax to using seq_fast for integer steps between 1 and 200.
For larger steps the throughput was faster using the standard
incrementing procedure.
(cmp): Use the equivalent but faster memcmp for equal len strings.
* tests/misc/seq.pl: Update fast path cases.
Addresses https://bugs.gnu.org/37241
The previous commit introduced a bug into the following syntax-check,
and thus effectively turned it off:
$ make sc_prohibit_test_calls_print_ver_with_irrelevant_argument; \
echo $?
prohibit_test_calls_print_ver_with_irrelevant_argument
fatal: cannot change to 'grep': No such file or directory
0
* cfg.mk (sc_prohibit_test_calls_print_ver_with_irrelevant_argument):
Remove changing directory, and pass $(srcdir) as argument to 'git -C'.
Akim Demaille [Sun, 4 Aug 2019 18:02:01 +0000 (11:02 -0700)]
maint: fix issues in syntax-check
* cfg.mk (sc_prohibit_colon_redirection): Don't expect `|` to denote
the pipe character in git grep.
(sc_tests_executable)
(sc_case_insensitive_file_names)
(sc_some_programs_must_avoid_exit_failure)
(sc_prohibit_test_background_without_cleanup_)
(sc_prohibit_test_calls_print_ver_with_irrelevant_argument)
(sc_prohibit_test_ulimit_without_require_)
(sc_prohibit_test_background_without_cleanup_)
(sc_THANKS_in_duplicates)
*sc_prohibit_test_calls_print_ver_with_irrelevant_argument):
Don't expect builddir to be a descendant of srcdir.
(sc_strftime_check): Don't check file size against 0 when "N\nq\n" was
already put in the file.
* THANKS.in: Remove me.
This is due to the "print_extra_number" logic using strings to determine
whether a 'extra number' is needed, but only one string was trimmed
when using a custom printf format.
Prompted by https://lists.gnu.org/r/coreutils/2019-08/msg00001.html
* NEWS: Mention fix.
* src/seq.c (print_numbers): Trim the 'x0_str' string before comparing
it to the previous 'x_str' string.
* tests/misc/seq-extra-number.sh: Add this scenario.
* tests/local.mk (all_tests): Add new test.
Bernhard Voelker [Fri, 19 Jul 2019 00:11:03 +0000 (02:11 +0200)]
doc: improve new version sort chapter
* doc/sort-version.texi: Fix some typos, avoid overly long lines in
the generated PDF, enclose some sample strings in @samp{...} for better
readability, etc. This also avoids an sc-avoid-builtin error:
s/builtin/built-in/
Assaf Gordon [Wed, 10 Jul 2019 01:36:10 +0000 (19:36 -0600)]
doc: add "version sort ordering" chapter
* doc/sort-version.texi: New file.
* doc/local.mk (doc_coreutils_TEXINFOS): Add new file.
* doc/coreutils.texi: @include new file, replace previous "Details about
version sort" section.
Andreas Dilger [Thu, 27 Jun 2019 08:25:55 +0000 (02:25 -0600)]
stat: don't explicitly request file size for filenames
When calling 'stat -c %N' to print the filename, don't explicitly
request the size of the file via statx(), as it may add overhead on
some filesystems. The size is only needed to optimize an allocation
for the relatively rare case of reading a symlink name, and the worst
effect is a somewhat-too-large temporary buffer may be allocated for
areadlink_with_size(), or internal retries if buffer is too small.
The file size will be returned by statx() on most filesystems, even
if not requested, unless the filesystem considers this to be too
expensive for that file, in which case the tradeoff is worthwhile.
* src/stat.c: Don't explicitly request STATX_SIZE for filenames.
Paul Eggert [Thu, 20 Jun 2019 01:46:57 +0000 (18:46 -0700)]
od: use fseek on non-regular files
Problem reported by Szőts Ákos (Bug#36291).
* NEWS: Mention this.
* src/od.c (skip): Try fseek even on files that do not have usable
sizes, falling back on fread if fseek fails.
Assaf Gordon [Mon, 13 May 2019 22:37:40 +0000 (16:37 -0600)]
tests: avoid false-positive in date-debug test
When debugging an invalid date due to DST switching, the intermediate
'normalized time' should not be checked - its value can differ between
systems (e.g. glibc vs musl).
Reported by Niklas Hambüchen in
https://lists.gnu.org/r/coreutils/2019-05/msg00031.html
Analyzed by Rich Felker in
https://lists.gnu.org/r/coreutils/2019-05/msg00039.html
* tests/misc/date-debug.sh: Replace the exact normalized time
with 'XX:XX:XX' so different values would not trigger test failure.
Jeff Layton [Tue, 28 May 2019 12:21:42 +0000 (08:21 -0400)]
stat: Use statx where available and support --cached
* src/stat.c: Drop statbuf argument from out_epoch_sec().
Use statx() rather than [lf]stat() where available,
so a separate call is not required to get birth time.
Set STATX_* mask bits only for things we want to print,
which can be more efficient on some file systems.
Add a new --cache= command-line option that sets the appropriate hint
flags in the statx call. These are primarily used with network
file systems to indicate what level of cache coherency is desired.
The new option is available unconditionally for better portability,
and ignored where not implemented.
* doc/coreutils.texi: Add documention for --cached.
* man/stat.x (SEE ALSO): Mention statx().
* NEWS: Mention the new feature.
Pádraig Brady [Sat, 8 Jun 2019 21:49:01 +0000 (22:49 +0100)]
split: fix failure for certain number of specified files
* src/split.c (set_suffix_length): Use a more standard
zero based logN calculation for the number of units.
* tests/split/suffix-auto-length.sh: Add a test case.
* THANKS.in: Mention the reporter.
* NEWS: Mention the fix.
Fixes https://bugs.gnu.org/35291
Paul Eggert [Thu, 30 May 2019 20:53:54 +0000 (13:53 -0700)]
dd: be more careful about signal handling
Problem reported by Hans Henrik Bergan (Bug#36007).
* NEWS: Mention this.
* src/dd.c (iclose, ifdatasync, ifstat, ifsync):
New functions, which are more careful about SIGINT.
(cleanup): Use iclose instead of close.
(finish_up): Process signals first.
(skip, dd_copy, main): Use ifstat instead of fstat.
(dd_copy): Use ifdatasync and ifsync instead of fdatasync and fsync.
Paul Eggert [Tue, 28 May 2019 19:42:24 +0000 (12:42 -0700)]
cp: fix /dev/stdin problem on Solaris
Problem reported by Jakub Kulik (Bug#35713).
* NEWS: Mention this.
* configure.ac (DEV_FD_MIGHT_BE_CHR): New macro.
* src/copy.c (DEV_FD_MIGHT_BE_CHR): Default to false.
(follow_fstatat): New function.
(copy_internal): Use it.
* src/copy.h (XSTAT): Remove; no longer used.
Kevin Locke [Thu, 23 May 2019 03:07:50 +0000 (21:07 -0600)]
doc: clarify dd sparse detection is by *output* block
The wording of the dd --help text suggests that output will be skipped
for sparse *input* blocks (i.e. that NUL-checking is done on input
blocks) while the code actually checks/skips all-NUL *output* blocks.[1]
* src/dd.c (usage): Update the --help text to clarify the above.
* tests/dd/sparse.sh: Ensure sparseness is controlled with obs.
Paul Eggert [Wed, 15 May 2019 19:42:23 +0000 (12:42 -0700)]
b2sum: port to HP-UX aCC
Its support for the -include option is flaky. Problem reported by
Michael Osipov (Bug#35650). Plus, we could run into other
compilers that don’t support any option like -include. Change the
code so that -include is not needed. Although this causes us to
depart from the upstream version, we’re already doing that for
other reasons.
* configure.ac (USE_XLC_INCLUDE): Remove, as there’s no
guarantee a compiler will support something like -include.
* src/blake2/b2sum.c [HAVE_CONFIG_H]: Include <config.h>.
* src/local.mk (src_b2sum_CPPFLAGS): Add -DHAVE_CONFIG_H.
Do not use -include or a substitute.
Paul Eggert [Tue, 14 May 2019 16:20:56 +0000 (09:20 -0700)]
stdbuf: port configure-time checking to HP-UX aCC
Problem reported by Michael Osipov (Bug#35650).
* configure.ac: Use AC_LANG_WERROR to pay attention to compiler
and linker warnings when testing whether stdbuf will work.
Paul Eggert [Sat, 11 May 2019 20:48:16 +0000 (13:48 -0700)]
b2sum: port to HP-UX C
* src/blake2/blake2.h (BLAKE2_PACKED):
Don’t assume __attribute__ ((packed)) works on non-Microsoft
compilers. Instead, assume it works only if we have good
reason to assume so, and fall back on Microsoft (or not packing)
otherwise. In practice, not packing is good enough and the
BLAKE2_PACKED macro is mostly just for documentation.
Paul Eggert [Sat, 11 May 2019 20:01:37 +0000 (13:01 -0700)]
basenc: port to C99
* src/basenc.c: Various minor style cleanups.
(struct base_decode_context): Do not use anonymous unions, as
they’re not in C99. Use a named union instead. All uses changed.
Paul Eggert [Sat, 11 May 2019 16:32:04 +0000 (09:32 -0700)]
maint: adjust to recent verify_true removal
* src/system.h (X2NREALLOC, X2REALLOC, DECIMAL_DIGIT_ACCUMULATE):
Use verify_expr instead of verify_true, which has been removed.
(DECIMAL_DIGIT_ACCUMULATE): Remove unnecessary size check.
Shugo Maeda [Sun, 31 Mar 2019 22:43:58 +0000 (15:43 -0700)]
factor: output immediately if stdout is a tty but stdin is not
* src/factor.c (lbuf_putc): Use line buffered mode if the standard
output is a terminal in the same way as the stdio library.
User programs might use pty only for the standard out
like the example of Ruby's PTY module:
https://docs.ruby-lang.org/en/2.6.0/PTY.html#module-PTY-label-Example
* NEWS: Mention the fix.
Fixes https://bugs.gnu.orv/35046
Paul Eggert [Sun, 17 Mar 2019 20:20:42 +0000 (13:20 -0700)]
ln: port to symlink ("x", ".") failing with EINVAL
Problem reported by John Marino (Bug#34894).
* src/ln.c (main): Port ln -s to Solaris symlink function,
where symlink ("x", ".") fails with errno == EINVAL.
Pádraig Brady [Sun, 10 Mar 2019 07:48:06 +0000 (23:48 -0800)]
tests: test-N: include subsecond values in gating check
* tests/misc/test-N.sh: The subsecond values for atime and mtime
were potentially seen to differ on newlyl created files.
So we include the subsecond portion when comparing stat values.
Pádraig Brady [Sun, 10 Mar 2019 04:40:34 +0000 (20:40 -0800)]
tests: wc-nbsp: fix false failures on various systems
* tests/misc/wc-nbsp.sh: Add gating checks for all characters,
as there are disparate classifications on various systems:
SunOS 5.10 treats \u202F, \u2060 as !iswprint()
SunOS 5.10 treats \u00A0, \u2007 as iswspace()
AIX 7.2, Darwin 17.4.0, NetBSD 7.1 treat \u2060 as !iswprint()
Pádraig Brady [Thu, 7 Mar 2019 05:04:26 +0000 (21:04 -0800)]
tests: id/zero: avoid false failure due to sed differences
* tests/id/zero.sh: sed on OSX will output a \n even
if the input doesn't have a \n on the last "line".
So ensure we always have a trailing '\n' to avoid the disparity.
Pádraig Brady [Thu, 7 Mar 2019 04:09:16 +0000 (20:09 -0800)]
tests: test-N: fix false positives on some systems
Testing by Assaf Gordon on OSX showed the atime wasn't
being updated when explicitly set back in time.
Also Debian 8.11 / mips64 was seen to not update the
mtime when truncating an empty file.
* tests/misc/test-N.sh: Isolate from different timestamping
behaviors of various (file) systems, by correlating
the timestamps with stat(1) before using `test -N`.
Assaf Gordon [Wed, 6 Mar 2019 06:32:34 +0000 (23:32 -0700)]
doc: replace @hashchar{} with actual hash character
Very old makeinfo-4.13 fails with:
./doc/coreutils.texi:2286: Unknown command `hashchar'.
./doc/coreutils.texi:2286: Misplaced {.
./doc/coreutils.texi:2286: Misplaced }.
Reported Bernhard Voelker in
https://lists.gnu.org/r/coreutils/2019-03/msg00016.html .
* doc/coreutils.texi (basenc invocation): Replace @hashchar{} with
actual hash character. The special syntax is only required
when referring to #line directives.
Pádraig Brady [Wed, 6 Mar 2019 18:34:16 +0000 (10:34 -0800)]
tests: wc-nbsp.sh: avoid failure on FreeBSD
* tests/misc/wc-nbsp.sh: FreeBSD and OS X don't
treat non breaking space as printable characters.
So use wc -L to determine printability before
testing non breaking space functionality.
Pádraig Brady [Wed, 6 Mar 2019 16:58:13 +0000 (08:58 -0800)]
build: fix env build where SIGNUM_BOUND is not constant
* src/env.c (initialize_signals): A new function to initialize
the signals array on the heap, to avoid a build failure on
opensolaris, where SIGNUM_BOUND is not a constant.
Pádraig Brady [Mon, 4 Mar 2019 09:12:04 +0000 (01:12 -0800)]
build: revert recent change with distributed man page handling
* man/local.mk: commit f114495e added an extra check to ensure
a binary was working before using it to generate the man page.
However this was not working for the false(1) command,
and also one can generally specify that one should not
be using generated commands on the current system by passing
'cross_compiling=yes' to the configure invocation.
Pádraig Brady [Mon, 4 Mar 2019 07:50:21 +0000 (23:50 -0800)]
env: add --list-signal-handling to output non default handling
* src/env.c (main): Output blocked or ignored signals
before a command is executed.
* doc/coreutils.texi (env invocation): Add the option.
* tests/misc/env-signal-handler.sh: Add a test case.
* NEWS: Mention the new feature.
Assaf Gordon [Fri, 15 Feb 2019 19:31:48 +0000 (12:31 -0700)]
env: new options --{default,ignore,block}-signal[=SIG]
New options to set signal handlers for the command being executed.
--block-signal suggested by Paul Eggert in http://bugs.gnu.org/34488#71
--default-signal is useful to overcome the POSIX limitation that shell
must not override inherited signal state, e.g. the second 'trap' here is
a no-op:
trap '' PIPE && sh -c 'trap - PIPE ; seq inf | head -n1'
Instead use:
trap '' PIPE && sh -c 'env --default-signal=PIPE seq inf | head -n1'
Similarly, the following will prevent CTRL-C from terminating the
program:
env --ignore-signal=INT seq inf > /dev/null
See https://bugs.gnu.org/34488#8
* NEWS: Mention new options.
* doc/coreutils.texi (env invocation): Document new options.
* man/env.x: Add example of --default-signal=SIG usage.
(SEE ALSO): Mention sigprocmask.
* src/env.c (signals): New global variable.
(longopts): Add new options.
(usage): Print new options.
(parse_signal_params): Parse comma-separated list of signals, store in
signals variable.
(reset_signal_handlers): Set each signal to SIG_DFL/SIG_IGN.
(parse_block_signal_params): Parse command-line options.
(set_signal_proc_mask): Call sigprocmask to block/unblock signals.
(main): Process new options.
* src/local.mk (src_env_SOURCES): Add operand2sig.c.
* tests/misc/env-signal-handler.sh: New test.
* tests/local.mk (all_tests): Add new test.
stat: print birth time on systems supporting statx
* configure.ac: Check for statx(), available on glibc >= 2.28.
* src/stat.c (get_birthtime): Call statx() when available.
* NEWS: Mention the improvement.
Pádraig Brady [Sun, 3 Mar 2019 22:35:18 +0000 (14:35 -0800)]
df: support different file system encodings when not using tty
* src/df.c (replace_problematic_chars): A new wrapper to be
more conservative in our replacement when not connected to a tty.
* tests/df/problematic-chars.sh: Add a test case.
Bernhard Voelker [Tue, 26 Feb 2019 18:06:52 +0000 (19:06 +0100)]
doc: further clarify 'yes' alternative in seq invocation
* doc/coreutils.texi (node seq invocation): Clarify to use the tool
'yes'; otherwise the reader may interpret the sentence as if one
could pass 'yes' as the INCREMENT value.
Pádraig Brady [Sun, 24 Feb 2019 05:23:47 +0000 (21:23 -0800)]
wc: treat non breaking space as a word separator
* src/wc.c (iswnbspace): A new function to match
characters in this class.
(isnbspace): Likewise for single byte charsets.
(main): Initialize posixly_correct from the environment,
to allow disabling honoring NBSP in non C locales.
(wc): Call is[w]nbspace() along with is[w]space.
* bootstrap.conf: Ensure btowc is available.
* tests/misc/wc-nbsp.sh: A new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the change in behavior.
Paul Eggert [Mon, 25 Feb 2019 07:59:22 +0000 (23:59 -0800)]
date: ‘+’ conversion specification flag
The recent Gnulib update fixed Bug#34608; document and test this.
* NEWS: Mention the change.
* doc/coreutils.texi (Padding and other flags):
Update doc to cover new flag and other POSIX.1-2017 changes.
* tests/misc/date.pl (date-century-plus): New test.
Bernhard Voelker [Mon, 26 Nov 2018 08:05:37 +0000 (09:05 +0100)]
all: detect --help and --version more consistently
For select programs which accept only --help and --version options
(in addition to non-option arguments), process these options before
any other options.
Before:
$ dd bs=1 --help
dd: unrecognized option '--help'
Try 'dd --help' for more information.
$ yes me --help
me --help
me --help
...
After:
Any occurrence of '--help' in the arguments (prior to '--') will
show the help screen.
Pádraig Brady [Mon, 18 Feb 2019 03:16:37 +0000 (19:16 -0800)]
sort: clarify in --debug; only text comparisons affected
* src/sort.c (main): Adjust the debug info regarding locales,
to clarify that only textual comparisons are affected.
* tests/misc/sort-debug-warn.sh: Adjust accordingly.
Fixes https://bugs.gnu.org/34490
Pádraig Brady [Mon, 11 Feb 2019 01:40:36 +0000 (17:40 -0800)]
comm,join: ensure warnings are apparent upon exit
* src/comm.c (main): Output a warning right before exit,
in case previous errors have scrolled from view.
* src/join.c (main): Likewise.
* tests/misc/comm.pl: Addjust accordingly.
* tests/misc/join.pl: Likewise.
Fixes https://bugs.gnu.org/34347
Pádraig Brady [Mon, 11 Feb 2019 03:25:22 +0000 (19:25 -0800)]
gnulib: update to use new strtold module
* gnulib: Update to make the new strtold module available.
* bootstrap.conf: strtod is now a dependency of c-strtod,
which in turn is a dependency of cl-strtod. This treats
strtold and strtod similarly.
* gl/lib/cl-strtod.c: Adjust to assume strtold is available.
* tests/misc/sort-float.sh: Likewise.
* src/sort.c: Likewise.
(nan_compare): Adjust comment to indicate
we still have to init padding bits as per
https://sourceware.org/bugzilla/show_bug.cgi?id=13246
Pádraig Brady [Sun, 3 Feb 2019 03:16:02 +0000 (19:16 -0800)]
seq: output decimal points consistently with invalid locales
* src/seq.c (print_numbers): Only reset the locale if it
was successfully set originally.
* tests/misc/seq-locale.sh: Add a new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the fix.
Pádraig Brady [Wed, 30 Jan 2019 04:44:23 +0000 (20:44 -0800)]
build: ensure sys/select.h is included
bootstrap.conf: Explicitly depend on select, rather than transitively.
* src/tail.c: Unconditionally include select.h as we use select()
outside inotify contexts now.
Pádraig Brady [Wed, 30 Jan 2019 04:32:53 +0000 (20:32 -0800)]
stat,tail: fix android build and support inotify
* src/extract-magic: Treat android like linux,
which fixes the build by ensuring the constants are defined.
* src/stat.c: Support all constants on android, including
the android specific "sdcardfs".
* src/tail.c: Fix inclusion of statfs headers to be independent
of inotify availability, as fremote() is used on linux even
if inotify has been disabled. Also enable fremote() on android.
* NEWS: Mention the improvment.
Fixes https://bugs.gnu.org/34239
These commands now accept floating-point numbers in the
current locale, as well as in the C locale.
Compatibility problem reported by Robert Elz.
* NEWS: Document this.
* bootstrap.conf (gnulib_modules): Add cl-strtod, cl-strtold.
Remove c-strtold.
* doc/coreutils.texi (Floating point, tail invocation)
(printf invocation, timeout invocation, sleep invocation)
(seq invocation): Document this.
* gl/lib/cl-strtod.c, gl/lib/cl-strtod.h, gl/lib/cl-strtold.c:
* gl/modules/cl-strtod, gl/modules/cl-strtold: New files.
* src/printf.c, src/seq.c, src/sleep.c, src/tail.c, src/timeout.c:
Include cl-strtod.h instead of c-strtod.
* src/printf.c (vstrtold):
* src/seq.c (scan_arg, print_numbers):
* src/sleep.c (main):
* src/tail.c (parse_options):
* src/timeout.c (parse_duration):
Use cl_strtold instead of c_strtold.
Paul Eggert [Fri, 25 Jan 2019 19:15:31 +0000 (11:15 -0800)]
sleep: improve doc
Problem reported by Robert Elz.
* doc/coreutils.texi (sleep invocation):
Say that arguments must be non-negative, which means they cannot
be arbitrary floating-point numbers. Mention POSIX, not
“historical implementations” that are no longer of practical
interest. List the extensions to POSIX.
* src/sleep.c (usage): Omit needless words, removing dubious
commentary about “most implementations” and incorrect commentary
about “arbitrary”. Details about exactly which numbers are
allowed can be found in the documentation.
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