Previously passing an empty parameter to -t would
raise an error, but now it means to treat each line
as a single field for matching. This matches the
default operation of `sort` which is usually used
in conjunction with join.
* src/join.c (main): Set the field delimiter to '\n' if
an empty parameter is passed to -t.
(usage): Mention the operation of -t ''.
* tests/misc/join: Add 2 new tests, for the existing -t '\0'
and the new -t '' functionality.
* doc/coreutils.texi (join invocation): Mention that
join -t '' always operates on the whole line, while
join -t '\0' usually does.
* NEWS: Mention the change in behavior.
This essentially allows one to use --check-order with headings.
Note join without --check-order will already handle the common case
where headings do match in each file, however using --check-order will fail
often when the header sorts after the first line of data.
Note also that this will join header lines from each file even if
they don't match, with headings from the first file being used.
* NEWS: Mention the new option.
* doc/coreutils.texi (join invocation): Describe the new option.
* src/join.c (usage): Likewise.
(join): Join the header lines unconditionally.
* tests/misc/join: Add 5 new tests.
* tests/Coreutils.pm: Add function to make limits available
* tests/test-lib.sh: ditto
* tests/misc/join: Check for both SIZE_OFLOW and UINTMAX_OFLOW
rather than using arbitrary 2^128
* tests/misc/sort: ditto
* tests/misc/uniq: ditto
* tests/misc/printf: Check for both INT_OFLOW and INT_UFLOW
rather than using arbitrary -2^31
* tests/misc/seq-long-double: Check for INTMAX_OFLOW
rather than using arbitrary 2^63
* tests/misc/split-fail: Check --lines --bytes and --line-bytes
options limits on all platforms. Note getlimits obviates the
need to use expr to check if 32 bit integers are supported,
which I think was invalid anyway as expr now supports bignum?
* tests/misc/test: Check for UINTMAX_OFLOW rather than
using arbitrary 2^64 and 2^128. Check for INTMAX_UFLOW
rather than using arbitrary -2^64
* tests/misc/timeout-parameters: Check for UINT_OFLOW
rather than using arbitrary 2^32
* tests/misc/truncate-overflow: Don't depend on truncate
to determine if we're on a 32 or 64 bit platform and
instead use the various OFF_T limits
* tests/misc/sort-merge: Check for UINTMAX_OFLOW
rather than using arbitrary 2^64+1
* tests/misc/unexpand: ditto
* tests/check.mk (TESTS_ENVIRONMENT): Save and restore TMPDIR around
envvar-check, so that the few scripts that require $TMPDIR don't fail.
This is also good to let a user's default TMPDIR setting be used e.g.,
in the search for an 'other-partition'.
FIXME: this is pretty ugly. maybe undo it and find a better way.
(TESTS_ENVIRONMENT): Invoke perl scripts with $(PERL), and use -T
if the script requires that. Otherwise, use $(SHELL).
* tests/misc/md5sum-newline: Create a file whose name contains
a newline in Perl (resort to using "system", since open refuses).
Fix old brokenness exposed by this change:
* tests/du/files0-from: Correct test not to rely on stdin
being attached to a non-tty.
* tests/misc/sort (3g, 3h, 3i): Likewise: add explicit empty input file.
Avoid warnings about using qw()-around-commas.
* tests/rm/fail-eperm: Now that this test is run from a temporary
subdirectory, adjust the full name of the "rm" program we're going
to run.
Change #!/bin/sh to #!/usr/bin/perl, and factor out the few lines
of boilerplate code to invoke perl. Do not "require 5.00x";
a configure-time Perl test handles that
* tests/dd/skip-seek:
* tests/misc/base64:
* tests/misc/basename:
* tests/misc/cut:
* tests/misc/date:
* tests/misc/dircolors:
* tests/misc/dirname:
* tests/misc/expand:
* tests/misc/expr:
* tests/misc/factor:
* tests/misc/fmt:
* tests/misc/fold:
* tests/misc/head:
* tests/misc/head-elide-tail:
* tests/misc/join:
* tests/misc/ls-misc:
* tests/misc/md5sum:
* tests/misc/md5sum-newline:
* tests/misc/mktemp:
* tests/misc/od:
* tests/misc/paste:
* tests/misc/pr:
* tests/misc/printf-cov:
* tests/misc/seq:
* tests/misc/sha1sum:
* tests/misc/sha1sum-vec:
* tests/misc/sha224sum:
* tests/misc/sha256sum:
* tests/misc/sha384sum:
* tests/misc/sha512sum:
* tests/misc/sort-merge:
* tests/misc/stat-printf:
* tests/misc/sum:
* tests/misc/tac:
* tests/misc/tail:
* tests/misc/test:
* tests/misc/test-diag:
* tests/misc/tr:
* tests/misc/tsort:
* tests/misc/tty-eof:
* tests/misc/unexpand:
* tests/misc/uniq:
* tests/misc/wc:
* tests/misc/wc-files0-from:
* tests/misc/xstrtol:
* tests/mv/i-1:
* tests/pr/pr-tests:
* tests/rm/empty-name:
* tests/rm/fail-eperm:
* tests/rm/unreadable:
