systems with a buggy readdir affecting file systems inaccessible
at configure time.
In some unusual circumstances `rm -r' would fail to remove --
or even consider -- all entries in a directory with more than 254
(SunOS) or 338 (Darwin) entries. This could cause trouble even on
other types of systems when using an affected file system via e.g.,
NFS. The underlying cause was a bug in readdir on those systems.
Coreutils-5.2.1 and earlier used a configure-time test designed
to detect precisely those problem systems, but it would detect
the problem and enable remove.c's work-around code only when its
configure-time test was run on a losing file system. Obviously,
it couldn't detect a problem if the offending file system wasn't
tested or even mounted at coreutils configure time. Now, rm itself
performs a minimal-cost run-time test to detect the problem.
(CONSECUTIVE_READDIR_UNLINK_THRESHOLD): Define.
(remove_cwd_entries): When readdir returns NULL for a directory from
which we've removed more than CONSECUTIVE_READDIR_UNLINK_THRESHOLD
entries, call rewinddir and then resume the readdir/unlink loop.
(UNLINK_CAN_UNLINK_DIRS): Rename from ROOT_CAN_UNLINK_DIRS.
This makes `mv -i --reply=no f1 f2' work as expected (in not
performing the move operation). But note that specifying `-i'
after `--reply=no' does *not* work.
Tiny patch from Vlada Macek.
(diagnose_surprises): New var.
(process_file): Diagnose surprises. Simplify the logic a bit,
while we're at it.
(main): Prepare to diagnose surprises. Remove useless code for
'-' option.
for -p.
(indicator_style_args, indicator_style_types): Set it appropriately.
(decode_switches, gobble_file, print_type_indicator):
(length_of_file_name_and_frills):
Implement the change described in NEWS.
(decode_switches): Quote ">", too.
(usage): Update to match the new behavior. Describe ">".
(reference_file): Move this static var to inside "main".
(process_file, process_files): Remove CHANGES arg; now taken from
static var. All uses changed.
(usage): Fix incorrect description of MODE operand.
(main): For invalid mode usages, output a brief usage message.
Adjust to new modechange API.
(obsolete_usage): Remove.
(join_field_1, join_field_2): Initialize to SIZE_MAX to indicate
they haven't been set yet.
(tab): Now int, not char. Initialize to -1 to indicate white space
separates columns, so that we can use NUL as a separator.
All uses changed.
(OBSOLETE_LONG_OPTIONS, get_option): Remove.
(string_to_join_field): Remove ERR_MSG_FMT arg; a single format
suffices. Use xstrtoul for sizes; it suffices.
(decode_field_spec): Report an error and exit on failure. Return void,
not bool.
(add_field_list): Likewise.
(set_join_field): New function.
(enum operand_status): New enum.
(add_file_name): New args OPERAND_STATUS, JOPTION_COUNT,
PREV_OPTC_STATUS, OPTC_STATUS to handle the bewildering array of
possibilities with obsolete option parsing.
(main): Use it. Do not depend on POSIX version.
Check for conflicting options. Parse obsolete options -j1 and -j2
so that it is a pure extension to POSIX 1003.1-2001.
Allow '-t\0' to specify a NUL tab, stealing the code from 'sort'.
(shortopts): New constant. -DIGIT now always takes an optional arg.
(main): Revamp parsing of -DIGIT to let parse_tab_stops handle it.
Don't complain about -DIGIT.
Jim Meyering
Paul Eggert