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2015-06-22numfmt: avoid integer overflow when roundingPádraig Brady
Due to existing limits this is usually triggered with an increased precision. We also add further restrictions to the output of increased precision numbers. * src/numfmt.c (simple_round): Avoid intmax_t overflow. (simple_strtod_int): Count digits consistently for precision loss and overflow detection. (prepare_padded_number): Include the precision when excluding numbers to output, since the precision determines the ultimate values used in the rounding scheme in double_to_human(). * tests/misc/numfmt.pl: Add previously failing test cases. * NEWS: Mention the fix.
2015-06-21numfmt: support user specified output precisionPádraig Brady
* src/numfmt.c (usage): Update the --format description to indicate precision is allowed. (parse_format_string): Parse a precision specification like the standard printf does. (double_to_human): Honor the precision in --to mode. * tests/misc/numfmt.pl: New tests. * doc/coreutils.texi (numfmt invocation): Mention the new feature. * NEWS: Likewise.
2015-06-19numfmt: implement support for field rangesDylan Cali
* src/numfmt.c: Replace field handling code with logic that understands field range specifiers. Instead of processing a single field and printing line prefix/suffix around it, process each field in the line checking whether it has been included for conversion. If so convert and print, otherwise just print the unaltered field. (extract_fields): Removed. (skip_fields): Removed. (process_line): Gutted and heavily reworked. (process_suffixed_number): FIELD is now passed as an arg instead of using a global. (parse_field_arg): New function that parses field range specifiers. (next_field): New function that returns pointers to the next field in a line. (process_field): New function that wraps the field conversion logic (include_field): New function that checks whether a field should be converted (compare_field): New function used for field value comparisons in a gl_list. (free_field): New function used for freeing field values in a gl_list. Global variable FIELD removed. New global variable all_fields indicates whether all fields should be processed. New global variable all_fields_after stores the first field of a N- style range. New global variable all_fields_before stores the last field of a -M style range. New global variable field_list stores explicitly specified fields to process (N N,M or N-M style specifiers). (usage): Document newly supported field range specifiers. * bootstrap.conf: Include xlist and linked-list modules. numfmt now uses the gl_linked_list implementation to store the field ranges. * tests/misc/numfmt.pl: Add tests for 'cut style' field ranges. Adjust existing tests as partial output can occur before an error Remove test for the 'invalid' field -5.. this is now a valid range. * gnulib: update to avoid compiler warnings in linked-list. * NEWS: Mention the new feature.
2015-06-19numfmt: handle suffixes consistently with --{from,to}-unitPádraig Brady
* src/numfmt.c (unit_to_umax): Support SI (power of 10) suffixes with the --from-unit and --to-unit options. Treat suffixes like is done with --from=auto, which for example will change the meaning of --to-unit=G to that of --to-unit=Gi. The suffix support was previously undocumented and it's better to avoid the traditional coreutils suffix handling in numfmt by default. * doc/coreutils.texi: Document the new behavior. Also fix a typo mentioning {from,to}=units=. * tests/misc/numfmt.pl: Adjust accordingly. * NEWS: Mention the change in behavior.
2015-06-09tail: display consistent diagnostics upon file replacementPádraig Brady
* src/tail.c (recheck): Display diagnostices for replaced files even with reused inodes which is a common case. * tests/tail-2/F-vs-missing.sh: Use correct diagnostic in comment. * tests/tail-2/F-vs-rename.sh: Likewise.
2015-06-09tail: display file headers correctly with inotifyPádraig Brady
* src/tail.c (tail_forever_inotify): Use the fspec pointer to distinguish previously output files, rather than a descriptor from the inotify event. That event descriptor was that of the parent directory when files were created or renamed etc. (check_fspec): Adjust for the new comparison. Also show the header when the file is truncated, since we show data in this case also. * tests/tail-2/F-headers.sh: A new test case. * tests/local.mk: Reference the new test. * NEWS: Mention the bug fix.
2015-06-06tests: fix false failure in recent test adjustmentPádraig Brady
* configure.ac: Comment on why we link rather than run the test, and remove the moot __ELF__ check since we never ran it anyway, and the new CFLAGS and LDFLAGS are a more direct test of support. * tests/misc/wc-parallel.sh: Fix a syntax error in the previous change. * tests/misc/md5sum-parallel.sh: Use better error checking, consistent with that used in wc-parallel.sh.
2015-06-06build: port to AIXPaul Eggert
Problems reported by Michael Felt, and and part of this fix taken from code suggested by Pádraig Brady in: http://bugs.gnu.org/20733#112 * configure.ac (stdbuf_supported): Check for warnings, and for -fPIC and -shared, for AIX. * src/stat.c (STRUCT_STATVFS): Define to struct statvfs64 if STATFS is statvfs64. * src/sync.c (sync_arg) [_AIX]: Open in write mode, since AIX fsync doesn't work on read-only file descriptors. * tests/misc/wc-parallel.sh: Skip test if xargs -P does not work.
2015-06-01tests: fix race in tail test without inotifyPádraig Brady
* tests/tail-2/wait.sh: Without inotify, skip a portion of the test that checks that -F never outputs from a tailed descriptor after the followed name is recreated, because tail_forever() doesn't guarantee that. Noticed at http://hydra.nixos.org/build/22766288
2015-06-01tests: fix false failure on loaded systemsPádraig Brady
* tests/misc/uniq-perf.sh: Use our standard 10s timeout, which is sufficient to trigger the failure and also avoids a false failure on slow/loaded systems. Noticed at http://hydra.nixos.org/build/22766288
2015-05-28tests: ln/hard-to-sym FAIL rather than ERROR when ln failsPádraig Brady
* tests/ln/hard-to-sym.sh: Only call framework_failure_ when ln returns success.
2015-05-28copy: prefer our hardlink to symlink emulation on OS X 10.10Pádraig Brady
* src/copy.c (CAN_HARDLINK_SYMLINKS): Don't enable use of linkat() on Darwin 14, as the gnulib fallback emulation there doesn't preserve ownership and timestamps etc. This fixes a test failure in tests/cp/link-symlink.sh * tests/cp/link-deref.sh: Adjust accordingly.
2015-05-23mkdir: fix -pZ with existing parent directoriesPádraig Brady
When the parent directory exists and has a different default context to the final directory, the context was incorrectly left as that of the parent directory. * src/mkdir.c (process_dir): Because defaultcon() is called for existing ancestors (as it must be to avoid races), then we must unconditionally call restorecon() on the last component due to the already documented caveat with make_dir_parents(). Alternatively you could temp disable o->set_security_context around make_dir_parents(), but that would be subject to races. * tests (tests/mkdir/restorecon.sh): Add a TODO for improvement. Reference mknod and mkfifo with print_ver_. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/20616
2015-05-22tests: df-output: accept multiple spaces in headerAssaf Gordon
* tests/df/df-output.sh: Allow for multiple spaces in the header line of 'df', resulting from alignment with disk sizes >= 10TB.
2015-05-19tests: fix non POSIX constructs causing failures with dashPádraig Brady
* tests/cp/no-ctx.sh: Scope of `var=val func` is inconsistent across shells, so avoid that construct with functions. * tests/df/no-mtab-status.sh: Likewise. * tests/tail-2/inotify-race.sh: `read` needs an argument. * tests/tail-2/inotify-race2.sh: Likewise.
2015-05-17build: avoid issues with case insensitive file systemsPádraig Brady
* cfg.mk (sc_case_insensitive_file_names): A new syntax-check rule. * tests/tail-2/descriptor-vs-rename.sh: Rename from tests/tail-2/f-vs-rename.sh * tests/local.mk: Reference the renamed test. Reported by Jim Meyering.
2015-05-14tests: fix check for local file system in inotify-rotate-resources.shBernhard Voelker
* tests/tail-2/inotify-rotate-resources.sh: s/(is_local_dir)/\1_/
2015-05-14tests: fix async allocation race on BTRFSPádraig Brady
* tests/dd/sparse.sh: Sync files before checking allocations, which may be done asynchronously on NFS and BTRFS at least. Also mark this test as very expensive on remote file systems. * tests/du/2g.sh: Likewise, also use fallocate if available to efficiently allocate the large file, otherwise skip on remote file systems. * tests/tail-2/inotify-rotate-resources.sh: Use the more standard is_local_dir_() to check remoteness. * tests/cp/fiemap-empty.sh: Comment on the sync issue for this currerntly unused test. Fixes http://bugs.gnu.org/20570
2015-05-13split: auto set suffix len for --numeric-suffixes=<N --number=NPádraig Brady
Supporting `split --numeric-suffixes=1 -n100` for example. * doc/coreutils.texi (split invocation): Mention the two use cases for the FROM parameter, and the consequences on the suffix length determination. * src/split.c (set_suffix_length): Use the --numeric-suffixes FROM parameter in the suffix width calculation, when it's less than the number of files specified in --number. * tests/split/suffix-auto-length.sh: Add test cases. Fixes http://bugs.gnu.org/20511
2015-05-11tail: consistently output all data for truncated filesPádraig Brady
Generally if logs are truncated, they're truncated to 0 length, so output all existing data when our heuristic determines truncation. Note with inotify, truncate() and write() are often determined independently and so all data would be written if that was the case. * src/tail.c (check_fspec): Reset file offset to 0 upon truncation. (tail_forever): Likewise. (recheck): Add a FIXME for the related issue where tail may lose data due to tail discounting older log files too early. * tests/tail-2/truncate.sh: A new test. * tests/local.mk: Reference the new test. * NEWS: Mention the fix.
2015-05-11tail: fix inotify startup racesPádraig Brady
The previous fixes to races in the various tail tests, identified actual races in the tail inotify implementation. With --follow=descriptor, if the tailed file was replaced before the inotify watch was added, then any subsequent changes were ignored. Similarly in --follow=name mode, all changes to a new name were effectively ignored if that name was created after the original open() but before the inotify_add_watch(). * src/tail.c (tail_forever_inotify): Fix 3 cases. 1. With -f, don't stop tailing when file removed before watch. 2. With -f, watch right file when file replaced before watch. 3. With -F, inspect correct file when replaced before watch. Existing tests identify these when tail compiled with TAIL_TEST_SLEEP. * tests/tail-2/inotify-rotate-resources.sh: This test also identifies the issue with --follow=name when TAIL_TEST_SLEEP is used. Adjust so the test is immune to such races, and also fail quicker on remote file systems. * tests/tail-2/inotify-race2.sh: A new test using GDB, based on inotify-race.sh, which tests the -F race without needed recompilation with sleeps. * tests/local.mk: Reference the new test. * NEWS: Mention the bug.
2015-05-11tests: cleanup background processes upon interruptionPádraig Brady
Reap background processes so that: - Stray processes aren't left on the system - Files aren't held open causing deletion issues on NFS - Partitions used to run the tests from can be unmounted * tests/tail-2/F-vs-missing.sh: Add the `kill && wait` of the background $pid(s) to cleanup_(). * tests/tail-2/F-vs-rename.sh: Likewise. * tests/tail-2/f-vs-rename.sh: Likewise. * tests/tail-2/append-only.sh: Likewise. * tests/tail-2/assert-2.sh: Likewise. * tests/tail-2/assert.sh: Likewise. * tests/tail-2/flush-initial.sh: Likewise. * tests/tail-2/inotify-hash-abuse.sh: Likewise. * tests/tail-2/inotify-hash-abuse2.sh: Likewise. * tests/tail-2/inotify-race.sh: Likewise. * tests/tail-2/inotify-rotate-resources.sh: Likewise. * tests/tail-2/inotify-rotate.sh: Likewise. * tests/tail-2/pid.sh: Likewise. * tests/tail-2/pipe-f2.sh: Likewise. * tests/tail-2/retry.sh: Likewise. * tests/tail-2/symlink.sh: Likewise. * tests/tail-2/tail-n0f.sh: Likewise. * tests/tail-2/wait.sh: Likewise. * tests/cp/existing-perm-race.sh: Likewise. * tests/cp/file-perm-race.sh: Likewise. * tests/cp/parent-perm-race.sh: Likewise. * tests/cp/sparse-to-pipe.sh: Likewise. * tests/dd/stats.sh: Likewise. * tests/du/move-dir-while-traversing.sh: Likewise. * tests/misc/cat-buf.sh: Likewise. * tests/misc/help-version.sh: Likewise. * tests/misc/printf-surprise.sh: Likewise. * tests/misc/sort-compress-proc.sh: Likewise. * tests/misc/sort-spinlock-abuse.sh: Likewise. * tests/misc/stdbuf.sh: Likewise. * tests/misc/tac-continue.sh: Likewise. * tests/misc/timeout-group.sh: Likewise. * tests/mv/i-3.sh: Likewise. * tests/rm/dangling-symlink.sh: Likewise. * tests/rm/isatty.sh: Likewise. * cfg.mk (sc_prohibit_test_background_without_cleanup_): A new syntax-check to ensure cleanup_() is defined when background tasks are created in a test.
2015-05-11tests: avoid hung processes due to gdb SIGCONT handlingPádraig Brady
* tests/tail-2/inotify-race.sh: Add a `wait` to ensure that we reap all background gdb and tail processes. That resulted in the test hanging intermittently and upon investigation was due to gdb intermittently failing to terminate the child process due to receiving a SIGCONT signal. Therefore we avoid using timeout(1) which sends that signal, and instead rely on tail's inbuilt --pid monitoring on a background sleep process. Given this new implementation, the VERY_EXPENSIVE guard was removed. Related issues with this test hanging were previously discussed at: https://lists.gnu.org/archive/html/bug-coreutils/2009-12/msg00025.html
2015-05-11tests: fix races in and standardize the tail testsPádraig Brady
* tests/tail-2/F-vs-missing.sh: Use standard "fastpoll" options (-s.1 --max-unchanged-stats=1) to speedup the non-inotify case. Add the non-inotify case to the test. `wait` on the background tail process to terminate which should avoid the need for the non standard `retry_delay_ cleanup ...` on NFS. * tests/tail-2/F-vs-rename.sh: Remove 'out' at the start of the loop, to avoid a race in checking its contents. Also ensure 'a' & 'b' files are present before the tail process starts. Use the standard "fastpoll" options as above. * tests/tail-2/f-vs-rename.sh: Likewise. * tests/tail-2/append-only.sh: Use more standard variable names. * tests/tail-2/flush-initial.sh: Use "fastpoll" options for non-inotify platforms. Also `wait` on the background tail to avoid stray processes and file cleanup issues on NFS. * tests/tail-2/inotify-hash-abuse.sh: Always run non-inotify case. Use "fastpoll" options. Use a more standard retry_delay_ instead of a hardcoded sleep loop. Add a `wait` on the background tail. * tests/tail-2/inotify-hash-abuse2.sh: Likewise. * tests/tail-2/inotify-rotate-resources.sh: Wait just on the specific tail $pid needed. * tests/tail-2/inotify-rotate.sh: Use "fastpoll" options. * tests/tail-2/pid.sh: Use standard variable names. Add a `wait` on the background tails. * tests/tail-2/pipe-f2.sh: Likewise. * tests/tail-2/tail-n0f.sh: Likewise. * tests/tail-2/retry.sh: Use "fastpoll" options. * tests/tail-2/symlink.sh: Likewise. * tests/tail-2/wait.sh: Likewise. Speedup by using sub second parameters to timeout(1). Improve the part ensuring that -F never follows a renamed file. * tests/tail-2/infloop-1.sh: Remove invalid test. tail(1) was not being passed the --pid=$yes_pid option, retry_delay_ wasn't used to avoid races, and yes could write huge files before being killed. * tests/local.mk: Remove the invalid test reference. * tests/tail-2/assert-2.sh: Rewrite using retry_delay_(). Since no longer hardcoding large delays, remove the VERY_EXPENSIVE tag. * tests/tail-2/assert.sh: Likewise.
2015-04-30tests: don't skip df tests with /proc/self/mountinfoPádraig Brady
* tests/df/no-mtab-status.sh: getmntent is no longer called when /proc/self/mountinfo is present, thus causing the test to be skipped. Therefore wrap fopen() to ignore mountinfo, and use the test genmntent table instead. * tests/df/skip-duplicates.sh: Likewise.
2015-04-28tests: run ls capability coloring test irrespective of $LS_COLORSPádraig Brady
* tests/ls/no-cap.sh: Ensure the test isn't skipped even if capability coloring is disabled in the current $LS_COLORS. Also just enable/disable capability coloring to avoid the dircolors(1) overhead.
2015-04-13df: fix --local hanging with inaccessible remote mountsPádraig Brady
* src/df.c (filter_mount_list): With -l, avoid stating remote mounts. * init.cfg: Avoid test hangs with inaccessible remote mounts. * tests/df/no-mtab-status.sh: Skip with inaccessible remote mounts. * tests/df/skip-rootfs.sh: Likewise. * tests/df/total-verify.sh: Likewise. * NEWS: Mention the bug fix. Reported at http://bugzilla.redhat.com/1199679
2015-03-31tail: fix -f to follow changes after a renameStephane Chazelas
* src/tail.c (tail_forever_inotify): Only monitor write()s and truncate()s to files in --follow=descriptor mode, thus avoiding the bug where we removed the watch on renamed files. Also adjust the inotify event processing code that is now significant only in --follow=name mode. * tests/tail-2/F-vs-rename.sh: Improve this existing test by running in both polling and inotify modes. * tests/tail-2/f-vs-rename.sh: A new test based on the existing one. * tests/local.mk: Reference the new test. * NEWS: Mention the bug. Fixes http://bugs.gnu.org/19760
2015-03-27tests: fix false test failure with df on Debian/kFreeBSDAssaf Gordon
* tests/fs/skip-duplicates.sh: On this platform .mnt_opts is significant so define to empty to avoid a NULL deref in read_file_system_list(). Fixes http://bugs.gnu.org/20210
2015-03-10yes: improve efficiency when all args aren't bufferedGiuseppe Scrivano
* src/yes.c (main): Even when the internal buffer isn't large enough, output what we've buffered already, and interate over the rest. This improves the performance in the edge case where there are many small arguments that overflow the buffer. * tests/misc/yes.sh: Add a test case for the many small arguments case.
2015-03-10yes: output data more efficientlyPádraig Brady
yes(1) may be used to generate repeating patterns of text for test inputs etc., so adjust to be more efficient. Profiling the case where yes(1) is outputting small items through stdio (which was the default case), shows the overhead of continuously processing small items in main() and in stdio: $ yes >/dev/null & perf top -p $! 31.02% yes [.] main 27.36% libc-2.20.so [.] _IO_file_xsputn@@GLIBC_2.2.5 14.51% libc-2.20.so [.] fputs_unlocked 13.50% libc-2.20.so [.] strlen 10.66% libc-2.20.so [.] __GI___mempcpy 1.98% yes [.] fputs_unlocked@plta Sending more data per stdio call improves the situation, but still, there is significant stdio overhead due to memory copies, and the repeated string length checking: $ yes "`echo {1..1000}`" >/dev/null & perf top -p $! 42.26% libc-2.20.so [.] __GI___mempcpy 17.38% libc-2.20.so [.] strlen 5.21% [kernel] [k] __srcu_read_lock 4.58% [kernel] [k] __srcu_read_unlock 4.27% libc-2.20.so [.] _IO_file_xsputn@@GLIBC_2.2.5 2.50% libc-2.20.so [.] __GI___libc_write 2.45% [kernel] [k] system_call 2.40% [kernel] [k] system_call_after_swapgs 2.27% [kernel] [k] vfs_write 2.09% libc-2.20.so [.] _IO_do_write@@GLIBC_2.2.5 2.01% [kernel] [k] fsnotify 1.95% libc-2.20.so [.] _IO_file_write@@GLIBC_2.2.5 1.44% yes [.] main We can avoid all stdio overhead by building up the buffer _once_ and outputting that, and the profile below shows the bottleneck moved to the kernel: $ src/yes >/dev/null & perf top -p $! 15.42% [kernel] [k] __srcu_read_lock 12.98% [kernel] [k] __srcu_read_unlock 9.41% libc-2.20.so [.] __GI___libc_write 9.11% [kernel] [k] vfs_write 8.35% [kernel] [k] fsnotify 8.02% [kernel] [k] system_call 5.84% [kernel] [k] system_call_after_swapgs 4.54% [kernel] [k] __fget_light 3.98% [kernel] [k] sys_write 3.65% [kernel] [k] selinux_file_permission 3.44% [kernel] [k] rw_verify_area 2.94% [kernel] [k] __fsnotify_parent 2.76% [kernel] [k] security_file_permission 2.39% yes [.] main 2.17% [kernel] [k] __fdget_pos 2.13% [kernel] [k] sysret_check 0.81% [kernel] [k] write_null 0.36% yes [.] write@plt Note this change also ensures that yes(1) will only write complete lines for lines shorter than BUFSIZ. * src/yes.c (main): Build up a BUFSIZ buffer of lines, and output that, rather than having stdio process each item. * tests/misc/yes.sh: Add a new test for various buffer sizes. * tests/local.mk: Reference the new test. Fixes http://bugs.gnu.org/20029
2015-03-04tee: generalize the --write-error option to --output-errorPádraig Brady
Adjust commit v8.23-140-gfdd6ebf to add the --output-error option instead of --write-error, and treat open() errors like write() errors. * doc/coreutils.texi (tee invocation): s/write-error/output-error/. * src/tee.c (main): Exit on open() error if appropriate. * tests/misc/tee.sh: Add a case to test open() errors. * NEWS: Adjust for the more general output error behavior. Suggested by Bernhard Voelker.
2015-02-24tee: add --write-error to control handling of closed pipesPádraig Brady
tee is very often used with pipes and this gives better control when writing to them. There are 3 classes of file descriptors that tee can write to: files(1), pipes(2), and early close pipes(3). Handling write errors to 1 & 2 is supported at present with the caveat that failure writing to any pipe will terminate tee immediately. Handling write errors to type 3 is not currently supported. To improve the supported combinations we add these options: --write-error=warn Warn if error writing any output including pipes. Allows continued writing to still open files/pipes. Exit status is failure if any output had error. --write-error=warn-nopipe, -p Warn if error writing any output except pipes. Allows continued writing to still open files/pipes. Exit status is failure if any non pipe output had error. --write-error=exit Exit if error writing any output including pipes. --write-error=exit-nopipe Exit if error writing any output except pipes. Use the "nopipe" variants when files are of types 1 and 3, otherwise use the standard variants with types 1 and 2. A caveat with the above scheme is that a combination of pipe types (2 & 3) is not supported robustly. I.e. if you use the "nopipe" variants when using both type 2 and 3 pipes, then any "real" errors on type 2 pipes will not be diagnosed. Note also a general issue with type 3 pipes that are not on tee's stdout, is that shell constructs don't allow to distinguish early close from real failures. For example `tee >(head -n1) | grep -m1 ..` can't distinguish between an error or an early close in "head" pipe, while the fail on the grep part of the pipe is distinguished independently from the resulting pipe errors. This is a general issue with the >() construct, rather than with tee itself. * NEWS: Mention the new feature. * doc/coreutils.texi (tee invocation): Describe the new option. * src/tee.c (usage): Likewise. (main): With --write-error ignore SIGPIPE, and handle the various exit, diagnostics combinations. * tests/misc/tee.sh: Tess all the new options. Fixes http://bugs.gnu.org/11540
2015-02-20tee: treat '-' operand as file name as mandated by POSIXBernhard Voelker
Since v5.2.1-1247-g8dafbe5, tee(1) treated '-' as stdout while POSIX explicitly requires to treat this as a file name. Revert this change, as the interleaved output - due to sending another copy of input to stdout - is not considered to be useful. Discussed in http://lists.gnu.org/archive/html/coreutils/2015-02/msg00085.html * src/tee.c (tee_files): Remove the special handling for "-" operands. (usage): Remove the corresponding sentence. * doc/coreutils.texi (common options): Remove the "tee -" example. (tee invocation): Document that tee(1) now treats "-" as a file name. * tests/misc/tee.sh: Add a test case for "tee -". While at it, re-indent the above multi-argument processing case and extend that to 13 operands, as POSIX mandates that, too. * tests/misc/tee-dash.sh: Remove now-obsolete test. * tests/local.mk (all_tests): Remove the above test. * NEWS (Changes in behavior): Mention the change.
2015-02-18tee: exit early if no more writable outputsPádraig Brady
* src/tee.c (main): Don't continue reading if we can't output anywhere. * tests/misc/tee.sh: Ensure we exit when no more outputs. * NEWS: Mention the change in behavior.
2015-02-18tests: support stderr verification with returns_()Pádraig Brady
* tests/init.sh (returns_): Disable tracing for this wrapper function, so that stderr of the wrapped command is unchanged, allowing for verification of the contents.
2015-02-06tail: return inotify resources where possiblePádraig Brady
Each user has a maximum number of inotify watches, so handle the cases where we exhaust these resources. * src/tail.c (tail_forever_inotify): Ensure we inotify_rm_watch() the watch for an inode, when replacing with a new watch for a name. Return all used inotify resources when reverting to polling. Revert to polling upon first indication of inotify resource exhaustion. Revert to polling on any inotify resource exhaustion. Diagnose resource exhaustion correctly in all cases. Avoid redundant reinsertion in the hash for unchanged watches (where only attributes of the file are changed). * tests/tail-2/retry.sh: Avoid false failure when reverting to polling. * tests/tail-2/inotify-rotate.sh: Likewise. * tests/tail-2/symlink.sh: Likewise. * tests/tail-2/inotify-rotate-resources.sh: New test to check that we're calling inotify_rm_watch() for replaced files. * tests/local.mk: Reference the new test. * NEWS: Mention the bug fix. * THANKS.in: Thanks for reporting and problem identification.
2015-02-06tests: fix recent regression in tail inotify testPádraig Brady
* tests/tail-2/inotify-rotate.sh (cleanup_fail_): Set fail=1 so that failures are identified. Regression in v8.23-63-g111a2b9 Also use print_ver_ rather than open coding --verbose support. Also check for more than a single 'b' which seems brittle.
2015-02-03tests: avoid a FP on aarch64 when comparing env/printenv outputBernhard Voelker
The following test fails on aarch64 on openSUSE's OpenBuildService due to glibc's execvp reversing the pointers of 'environ', i.e., the output of "env|tac" equals "env env" on that platform. * tests/misc/printenv.sh: Use 'env env' to work around the behavior on that platform. While at it, fix the grep pattern which suppressed all environment variables starting with an underscore "_" instead of "$_" (and "$LD_PRELOAD") only.
2015-01-31doc,maint: fix use of "i.e." in documentation and commentsBernhard Voelker
To align with all other places (and correct grammar), change all upper-case "I.E." to "I.e.". Furthermore, ensure that "i.e." is followed by a comma. Finally, ensure to use a double-space before "I.e.," at the beginning of a sentence. The following was used to change all offending uses (apart from old ChangeLog files): $ git grep -liF 'i.e.' \ | xargs sed -i \ -e 's/I\.E\./I.e./g' \ -e 's/\. \(I\.e\.\)/. \1/g' \ -e 's/\([Ii]\.e\.\)\( \)/\1,\2/g' \ -e 's/\([Ii]\.e\.\)$/\1,/g' * cfg.mk (sc_prohibit_uppercase_id_est): Add new rule. (sc_ensure_double_space_after_dot_before_id_est): Likewise. (sc_ensure_comma_after_id_est): Likewise. (old_NEWS_hash): Refresh hash via "make update-NEWS-hash". * NEWS: Change use of "id est" abbreviation via the above command. * README: Likewise. * README-prereq: Likewise. * doc/coreutils.texi: Likewise. * gl/lib/rand-isaac.c: Likewise. * gl/lib/tempname.c.diff: Likewise. * man/stdbuf.x: Likewise. * src/cat.c: Likewise. * src/copy.c: Likewise. * src/copy.h: Likewise. * src/cp.c: Likewise. * src/cut.c: Likewise. * src/dd.c: Likewise. * src/df.c: Likewise. * src/fiemap.h: Likewise. * src/longlong.h: Likewise. * src/ls.c: Likewise. * src/numfmt.c: Likewise. * src/pr.c: Likewise. * src/shred.c: Likewise. * src/shuf.c: Likewise. * src/split.c: Likewise. * tests/Coreutils.pm: Likewise. * tests/df/df-symlink.sh: Likewise. * tests/df/skip-rootfs.sh: Likewise. * tests/init.sh: Likewise. * tests/ls/color-norm.sh: Likewise. * tests/misc/basename.pl: Likewise. * tests/misc/ls-misc.pl: Likewise. * tests/misc/md5sum-bsd.sh: Likewise. * tests/misc/shred-exact.sh: Likewise. * tests/misc/sort.pl: Likewise. * tests/misc/stdbuf.sh: Likewise. * tests/misc/tac-continue.sh: Likewise. * tests/rm/r-root.sh: Likewise. * tests/tail-2/symlink.sh: Likewise.
2015-01-28sync: support syncing specified argumentsGiuseppe Scrivano
* m4/jm-macros.m4 (coreutils_MACROS): Check for syncfs(). * man/sync.x: Add references to syncfs, fsync and fdatasync. * doc/coreutils.texi (sync invocation): Document the new feature. * src/sync.c: Include "quote.h". (AUTHORS): Include myself. (MODE_FILE, MODE_DATA, MODE_FILE_SYSTEM, MODE_SYNC): New enum values. (long_options): Define. (sync_arg): New function. (usage): Describe that arguments are now accepted. (main): Add arguments parsing and add support for fsync(2), fdatasync(2) and syncfs(2). * tests/misc/sync.sh: New (and only) test for sync. * tests/local.mk: Reference the new test. * AUTHORS: Add myself to sync's authors. * NEWS: Mention the new feature.
2015-01-20tests: use returns_ function for new split testBernhard Voelker
* tests/split/record-sep.sh: Use the recently added returns_ function to simplify the shell syntax in this test. Also remove the redirection of stdout/stderr to /dev/null as this eases analyzing errors.
2015-01-19split: new -t option to select record separatorAssaf Gordon
* src/split.c (eolchar): A new variable to hold the separator character (unibyte for now). This is reference throughout rather than hardcoding '\n'. (usage): Describe the new --separator option, and mention records along with lines so there is no ambiguity that all options treat lines and records equivalently. (main): Have -t update eolchar, or default to '\n'. * tests/split/record-sep.sh: New test case. * tests/local.mk: Reference the new test. * doc/coreutils.texi (split invocation): Document the new option. Adjust --lines, --line-bytes, --number=[lr]/... to mention they pertain to records if --separator is specified. * NEWS: Mention the new feature.
2015-01-14tests: use compare-vs-/dev/null instead of 'test -s'Bernhard Voelker
When some program produces unexpected output, that use of compare-vs-/dev/null will ensure that the surprising output is printed in the test's output. With "test -s err" only, one would have to instrument and rerun in order to see the offending output. * cfg.mk (sc_prohibit_and_fail_1): Exempt 'compare' from this check. * tests/dd/misc.sh: Change "tests -s ... || fail=1" to "compare /dev/null ... && fail=1". * tests/misc/nice.sh: Likewise. * tests/rm/read-only.sh: Likewise. * tests/tail-2/inotify-race.sh: Likewise. * tests/touch/no-dereference.sh: Likewise. Suggested by Jim Meyering in http://lists.gnu.org/archive/html/coreutils/2015-01/msg00042.html
2015-01-14tests: add extra protection against unexpected exitsPádraig Brady
Many tests use `program ... && fail=1` to ensure expected error situations are indicated. However that would mask an unexpected exit (like a crash). Therefore explicitly check the expected exit code. Note where error messages are also verified, the extra protection is not added. * tests/init.sh (returns_): A new helper function to check the return code of a command, and used throughout the tests. * cfg.mk (sc_prohibit_and_fail_1): Add a syntax check to avoid new instances of this issue.
2015-01-12tests: avoid skipping some df tests with libmountPádraig Brady
* tests/df/no-mtab-status.sh: Provide libmount placeholders, to avoid skipping the test when libmount is in use. * tests/df/skip-duplicates.sh: Likewise. * tests/df/skip-rootfs.sh: Comment that the test is moot when libmount (/proc/self/mountinfo) is being used.
2015-01-10maint: clean up some test issues identified with shellcheckPádraig Brady
* tests/cp/cp-a-selinux.sh: Comment why unused variables are assigned. Fix misspellings noticed while adjusting. * tests/cp/fiemap-perf.sh: Fix quoting. * tests/misc/shuf.sh: Avoid useless use of cat. * tests/misc/printf-surprise.sh: Likewise.
2015-01-08maint: adjustments related to previous shuf crash fixDaiki Ueno
* tests/misc/shuf.sh: Improve the test so it detects crashes in more cases. * NEWS: Mention the previous fix.
2015-01-05shuf: do not mishandle 'shuf -i0-0 1'Paul Eggert
Problem reported by Daiki Ueno in: http://bugs.gnu.org/19520 * src/shuf.c (main): Avoid core dump if !input_range. * tests/misc/shuf.sh: Test for this bug.
2015-01-01maint: update further copyright year number rangesBernhard Voelker
* bootstrap: Update copyright year manually (missing in previous gnulib update). * tests/init.sh: Likewise. The entries in the exemption list are processed by "grep -vEf ./.x-update-copyright", and therefore evaluated as an extended regular expression (ERE). Thus, the "bootstrap" entry also matched for bootstrap.conf which we want to be updated. * .x-update-copyright: Change all entries to EREs, i.e. including the caret ^ and dollar sign $ meta-characters matching the beginning and the end of a line. * bootstrap.conf: Update copyright year by "make update-copyright". Finally, the only one showing up with the following command should be the COPYING file: $ git grep 'Copyright .* Free Software' | grep -v '2015 Free Software'