[LFS Trac] #5639: diffutils-3.11

#5639: diffutils-3.11
-------------------------+----------------------
 Reporter:  Bruce Dubbs  |      Owner:  lfs-book
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  12.3
Component:  Book         |    Version:  git
 Severity:  normal       |   Keywords:
-------------------------+----------------------
 New minor version.

 Noteworthy changes in release 3.11 (2025-02-02) [stable]

 Improvements

   Programs now quote file names more consistently in diagnostics.
   For example; "cmp 'none of' /etc/passwd" now might output
   "cmp: EOF on ‘none of’ which is empty" instead of outputting
   "cmp: EOF on none of which is empty".  In diagnostic messages
   that traditionally omit quotes and where backward compatibility
   seems to be important, programs continue to omit quotes unless
   a file name contains shell metacharacters, in which case programs
   use shell quoting.  For example, although diff continues to output
   "Only in a: b" as before for most file names, it now outputs
   "Only in 'a: b': 'c: d'" instead of "Only in a: b: c: d" because the
   file names 'a: b' and 'c: d' contain spaces.  For compatibility
   with previous practice, diff -c and -u headers continue to quote for
   C rather than for the shell.

   diff now outputs more information when symbolic links differ, e.g.,
   "Symbolic links ‘d/f’ -> ‘a’ and ‘e/f’ -> ‘b’ differ", not just
   "Symbolic links d/f and e/f differ".  Special files too, e.g.,
   "Character special files ‘d/f’ (1, 3) and ‘e/f’ (5, 0) differ", not
   "File d/f is a character special file while file e/f is a character
   special file".

   diff's --ignore-case (-i) and --ignore-file-name-case options now
   support multi-byte characters.  For example, they treat Greek
   capital Δ like small δ when input uses UTF-8.

   diff now supports multi-byte characters when treating white space.
   In options like --expand-tabs (-t), --ignore-space-change (-b) and
   --ignore-tab-expansion (-E), diff now recognizes non-ASCII space
   characters and counts columns for non-ASCII characters.

 Bug fixes

   cmp -bl no longer omits "M-" from bytes with the high bit set in
   single-byte locales like en_US.iso8859-1.  This fix causes the
   behavior to be locale independent, and to be the same as the
   longstanding behavior in the C locale and in locales using UTF-8.
   [bug introduced in 2.9]

   cmp -i N and -n N no longer fail merely because N is enormous.
   [bug present since "the beginning"]

   cmp -s no longer mishandles /proc files, for which the Linux kernel
   reports a zero size even when nonempty.  For example, the following
   shell command now outputs nothing, as it should:
 {{{
   cp /proc/cmdline t; cmp -s /proc/cmdline t || echo files differ
 }}}
   [bug present since "the beginning"]

   diff -E no longer mishandles some input lines containing '\a', '\b',
   '\f', '\r', '\v', or '\0'.
   [bug present since 2.8]

   diff -ly no longer mishandles non-ASCII input.
   [introduced in 2.9]

   diff - A/B now works correctly when standard input is a directory,
   by reading a file named B in that directory.
   [bug present since "the beginning"]

   diff no longer suffers from race conditions in some cases
   when comparing files in a mutating file system.
   [bug present since "the beginning"]
-- 
Ticket URL: <https://wiki.linuxfromscratch.org/lfs/ticket/5639>
LFS Trac <https://wiki.linuxfromscratch.org/lfs/>
Linux From Scratch: Your Distro, Your Rules.

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