86 Commits

Author SHA1 Message Date
Jim Meyering
47a1f46f08 maint: update copyright dates 2023-01-01 17:19:37 -08:00
Jim Meyering
aec523d3a4 maint: make update-copyright 2022-01-03 11:49:11 -08:00
Paul Eggert
76f518677b doc: copy fdl.texi into git
This pacifies this notice from ./bootstrap: “Notice from module
fdl: Don't use this module! Instead, copy the referenced license
file into your version control repository.”
* bootstrap.conf (gnulib_modules): Remove fdl.
* doc/fdl.texi: New file, taken from Gnulib.
2021-10-16 01:11:15 -07:00
Jim Meyering
22fb055cca maint: update all copyright year number ranges
Run "make update-copyright" and then...
* gnulib: Update to latest with copyright year adjusted.
* tests/init.sh: Sync with gnulib to pick up copyright year.
* bootstrap: Likewise.
2021-01-01 17:37:49 -08:00
Jim Meyering
2280c5b4a5 doc: correct an ancient "At present"
* doc/diffutils.texi (Unified Format): Correct the now
seriously outdated "At present" (referring to early 1990s)
statement to be more of a historical note.
Reported by Roland Illig in http://bugs.gnu.org/39184.
2020-01-19 08:48:21 -08:00
Jim Meyering
351f87d0c4 maint: update all copyright year number ranges
Run "make update-copyright" and then...
* gnulib: Update to latest with copyright year adjusted.
* tests/init.sh: Sync with gnulib to pick up copyright year.
* bootstrap: Likewise.
2020-01-01 09:33:03 -08:00
Paul Eggert
2c9d956aac diff: remove unportable ‘diff -N - f <&-’ feature
* NEWS: Mention this.
* bootstrap.conf (gnulib_modules): Add stdopen.
* doc/diffutils.texi (Comparing Directories):
Do not document behavior if stdin is closed.
* src/diff.c: Include stdopen.h.
(main): Call stdopen early.
(compare_files) [__hpux]: Remove recently-introduced
special case for HP-UX exec with stdin closed.
* tests/new-file: Remove tests of the removed feature.
2019-01-05 19:20:36 -08:00
Jim Meyering
197d7d492f maint: update all copyright dates via "make update-copyright"
* gnulib: Also update submodule for its copyright updates.
2019-01-01 19:02:28 -08:00
Jim Meyering
4a38f715f1 maint: update gnulib and copyright dates for 2018
* gnulib: Update to latest.
* all files: Run "make update-copyright".
* bootstrap: Update from gnulib.
2018-01-06 16:51:19 -08:00
Jim Meyering
c881afb9b8 maint: stop using @acronym{...} in texinfo sources
* doc/diffutils.texi: Remove all uses of @acronym{...},
per recommendation by Karl Berry.
* cfg.mk (local-checks-to-skip): Remove exemption, enabling
the @acronym{-prohibiting syntax-check rule.
2017-05-06 12:24:42 -07:00
Paul Eggert
ac05c6d549 cmp: improve EOF diagnostic
This improves on yesterday's change, following up on a
remark by Jim Meyering (Bug#22816#21).
* doc/diffutils.texi (Invoking cmp, cmp Options): Follow POSIX more
closely in the documentation of the information appended to the EOF
diagnostic.
* src/cmp.c (cmp): Be more specific about the shorter file's length
and fix some off-by-1 issues in reporting line counts.
* tests/cmp: Adjust to match new behavior.
Don't assume internal details about stdio buffering.
2017-05-05 07:57:05 -07:00
Paul Eggert
1b1526b4f5 cmp: report prefix length when one file is shorter
Requested by Dan Jacobson (Bug#22816).
* NEWS:
* doc/diffutils.texi (Invoking cmp, cmp Options): Document this.
* src/cmp.c (cmp): Implement it.
* tests/Makefile.am (TESTS): Add cmp.
* tests/cmp: New file.
2017-05-04 17:54:46 -07:00
Jim Meyering
75173432ed maint: change "time stamp" to "timestamp" globally
This avoids a new syntax-check failure.
* ChangeLog-2008: Perform that change.
* doc/diffutils.texi: Likewise.
* NEWS: Likewise.
* cfg.mk: Update the old news hash accordingly.
2017-01-31 10:45:20 -08:00
Jim Meyering
90106d33ab maint: update gnulib and copyright dates for 2017
* gnulib: Update to latest.
* all files: Run "make update-copyright".
2017-01-01 03:22:44 -08:00
Paul Eggert
68b82f6f84 diff: fix big performance degradation in 3.4
* NEWS, doc/diffutils.texi (Overview): Document this.
* src/analyze.c (diff_2_files): Restore too_expensive heuristic,
but this time with a floor that is 16 times the old floor.  This
should fix Bug#16848, by generating good-quality output for its
test case, while not introducing Bug#24715, by running nearly as
fast as diff-3.3 for that test case.
2016-10-25 21:58:31 -07:00
Glenn Morris
752679190c doc: fix a reference to emacs' emerge node
* doc/diffutils.texi (Interactive Merging): Correct a reference to
emacs' emerge node: s/emerge/Emerge/.
This addresses http://debbugs.gnu.org/23613
2016-05-24 19:51:36 -07:00
Jim Meyering
7346a03010 maint: update copyright year, bootstrap, init.sh
Run "make update-copyright" and then...

* gnulib: Update to latest.
* tests/init.sh: Update from gnulib.
* bootstrap: Likewise.
2016-01-01 18:00:08 -08:00
Giuseppe Scrivano
04f6d57177 diff: add --palette
* bootstrap (gnulib_modules): Add 'argmatch'.
* doc/diffutils.texi: Add documentation for --palette
* src/diff.h (set_color_palette): New prototype.
* src/diff.c (set_color_palette): New function.
(color_palette): New variable.
* src/utils.c: Include "argmatch.h".
(struct bin_str): New struct.
(struct color_ext_type): New struct.
(color_indicator): New array.
(indicator_name): New array.
(indicator_no): New enum.
(parse_state): New enum.
(put_indicator): New function.
(get_funky_string): New function. Copied from coreutils ls.
(parse_diff_color):  New function. Copied from coreutils ls
"parse_ls_color" function.
(set_color_context): Use put_indicator instead of directly
outputting the sequence.
* po/POTFILES.in: Add 'lib/argmatch.c'
2015-11-29 08:20:53 -08:00
Giuseppe Scrivano
c0fa19fe92 diff: add support for --color
* doc/diffutils.texi (diff Options): Add documentation for --color.
Copied from coreutils ls --color.
* src/context.c (pr_unidiff_hunk): Set the color context.
(print_context_header): Likewise.
(pr_context_hunk): Likewise.
* src/diff.h (enum colors_style): New enum to record when to use colors.
(colors_style): New variable to memorize the argument value.
(set_color_context): Add function definition.
* src/diff.c: : Define COLOR_OPTION.
(specify_colors_style): New function.
(longopts): Add --color.
(main): Handle --color argument.
(option_help_msgid): Add usage string for --color.
* src/normal.c (print_normal_hunk): Set the color context.
* src/side.c (print_1sdiff_line): Likewise.
* src/util.c (print_1_line_nl): New function.
(print_1_line): Make it a wrapper of 'print_1_line_nl'.
(colors_enabled): New boolean variable.
(begin_output): Call check_color_output once the output file is
configured.
(output_1_line): Periodically call `process_signals'.
(caught_signals): New sigset_t.
(colors_enabled): New boolean variable.
(interrupt_signal): New sig_atomic_t.
(stop_signal_count): New sig_atomic_t.
(check_color_output): New function.
(install_signal_handlers): Likewise. Copied from coreutils ls.
(process_signals): Likewise.  Copied from coreutils ls.
(set_color_context): New function.
(sighandler): Likewise.  Copied from coreutils ls.
(stophandler): Likewise.  Copied from coreutils ls.
2015-11-29 08:20:53 -08:00
Jim Meyering
5801f8add8 doc: --no-dereference: improve wording/description
* doc/diffutils.texi (Comparing Directories): Correct grammar.
(diff Options) [--no-dereference]: Say a little more.
2015-07-10 09:55:43 -07:00
Jim Meyering
29e8de4885 maint: update copyright year ranges to include 2015; update gnulib 2015-01-01 22:31:27 -08:00
Jim Meyering
cfcba87350 maint: update copyright year range in texinfo documentation
* doc/diffutils.texi: Update copyright.
2014-08-23 14:06:31 -07:00
Jim Meyering
667864f284 maint: update bug-reporting address
* README: Change bug-gnu-utils@... to bug-diffutils@gnu.org.
* doc/diffutils.texi: Likewise.
Reported by Jamie Landeg Jones.
2014-04-15 08:05:55 -07:00
Paul Eggert
fee3cad6b7 doc: improve documentation about reading and stdin
See Bug#17075.
* doc/diffutils.texi (Comparison): Say that files need not be read.
(Invoking diff): Remove confusing remark about 'diff - -'.
It's not that useful, and it's not portable anyway.
2014-03-25 17:56:14 -07:00
Paul Eggert
9b48bf3d3e diff: remove TOO_EXPENSIVE heuristic
Problem reported by Vincent Lefevre in <http://bugs.gnu.org/16848>.
The simplest solution is to remove the TOO_EXPENSIVE heuristic
that I added to GNU diff in 1993.  Although appropriate for
circa-1993 hardware, these days the heuristic seems to be more
trouble than it's worth.
* NEWS: Document this.
* doc/diffutils.texi (Overview): Modernize citations.
Remove mention of TOO_EXPENSIVE heuristic.
* src/analyze.c (diff_2_files): Adjust to TOO_EXPENSIVE-related
API changes in gnulib's diffseq module.
2014-02-23 22:50:37 -08:00
Paul Eggert
bc4b4b2bbf diff: exit with status 1, not 2, when binary files differ
Problem reported by Vincent Lefevre in <http://bugs.gnu.org/16608>.
* NEWS:
* doc/diffutils.texi (Binary, Invoking diff): Document this.
* src/analyze.c (briefly_report): Return void, not int.
All uses changed.  Do not futz with exit status.  Simplify.
* tests/binary: Adjust to match new behavior.
2014-01-31 17:15:54 -08:00
Paul Eggert
6e68271b69 doc: fix menu typo
* doc/diffutils.texi (Comparing Three Files): Fix out-of-order menu.
Bug caught by Texinfo 5.0.
2013-03-23 00:26:39 -07:00
Jim Meyering
a0483cb2fc maint: update all copyright year number ranges
Run "make update-copyright".
2013-01-04 11:13:02 +01:00
Paul Eggert
42f6244ee0 * doc/diffutils.texi (cmp Options): Document -l format better. 2012-10-03 21:57:45 -07:00
Jim Meyering
5cb0eea638 maint: avoid new syntax-check failure due to @xref use
* doc/diffutils.texi: Change several "; @xref{..." to ".  @xref{...",
since @xref should start a sentence.
2012-08-28 10:59:03 +02:00
Paul Eggert
7f2f4bb365 diff: -N, --unidirectional-new-file now compare to "-" too
* NEWS: Document this.
* doc/diffutils.texi (Comparing Directories): Likewise.
Also, document that these options work at the top level.
* src/diff.c (compare_files): Treat EBADF like ENOENT, to handle
the case where "-" is closed.  Allow the other file to be
STDIN_FILENO, in case it's "-".
* tests/Makefile.am (TESTS): Add new-file.
* tests/new-file: New file.
2012-02-04 22:13:48 -08:00
Paul Eggert
62ca21c8c1 maint: quote 'like this' or "like this", not `like this'
This is in response to a recent change in the GNU coding standards,
which now suggest quoting 'like this' or "like this", instead of
`like this' or ``like this''.
* HACKING, NEWS, README, README-hacking, TODO, doc/diagmeet.note:
* doc/diffutils.texi, ms/config.bat, ms/config.site:
* src/analyze.c, src/cmp.c, src/context.c, src/diff.c:
* src/diff.h, src/diff3.c, src/dir.c, src/ifdef.c, src/io.c:
* src/sdiff.c, src/side.c, src/system.h, src/util.c:
* tests/help-version:
Quote 'like this' or "like this" in commentary.
* cfg.mk (old_NEWS_hash): Adjust to reflect new NEWS quoting.
* man/help2man: Update to 1.40.4 version, with quoting fixed as above.
* po/en.po: Remove translation involving `, as it's no longer needed.
* src/cmp.c (try_help, specify_ignore_initial, usage, main):
* src/diff.c (main, try_help, option_help_msgid, specify_value)
(compare_files):
* src/diff3.c (main, try_help, option_help_msgid, usage)
(read_diff):
* src/dir.c (compare_names):
* src/sdiff.c (try_help, usage, check_child_status, main):
* src/util.c (finish_output):
* tests/help-version:
Quote 'like this' in output.
2012-01-25 23:54:38 -08:00
Bruno Haible
e3324651cc New option --no-dereference.
* src/diff.h (no_dereference_symlinks): New variable.
* src/diff.c: Include xreadlink.h.
(longopts): Add --no-dereference option.
(main): Accept --no-dereference option.
(option_help_msgid): Mention the --no-dereference option.
(compare_files): If no_dereference_symlinks is true, use lstat()
instead of stat(). Compare symbolic links by comparing their values.
* bootstrap.conf (gnulib_modules): Add lstat, stat, xreadlink.
* doc/diffutils.texi (Comparing Directories, diff Options): Mention the
--no-dereference option.
* tests/no-dereference: New file.
* tests/Makefile.am (TESTS): Add it.
2012-01-08 21:26:27 +01:00
Jim Meyering
45110a7927 maint: update all copyright year number ranges
Run "make update-copyright".
2012-01-01 09:32:41 +01:00
Roland McGrath
86a40dd6ac diff, sdiff: new option --ignore-trailing-space (-Z)
Derived from Roland McGrath's patch (dated June 2004!) in:
http://lists.gnu.org/archive/html/bug-gnu-utils/2004-07/msg00000.html
* NEWS:
* doc/diffutils.texi (White Space, Blank Lines)
(sdiff Option Summary, diff Options, sdiff Options): Document -Z.
* src/diff.h (IGNORE_TRAILING_SPACE)
(IGNORE_TAB_EXPANSION_AND_TRAILING_SPACE): New constants, for -Z.
* src/diff.c (shortopts, longopts, main, option_help_msgid):
* src/sdiff.c (longopts, option_help_msgid, main):
* src/io.c (find_and_hash_each_line):
* src/util.c (lines_differ, analyze_hunk): Support -Z.
2011-08-14 22:09:21 -07:00
Tim Waugh
70febebfe5 diff: --ignore-file-name-case now applies at top level too
Derived from Tim Waugh's patch in:
http://lists.gnu.org/archive/html/bug-diffutils/2011-08/msg00034.html
* NEWS, doc/diffutils.texi (diff Options): Document this.
* src/diff.c (compare_files): Implement this, by using
find_dir_file_pathname.
* src/diff.h (find_dir_file_pathname): New decl.
* src/dir.c: Include filenamecat.h.
(find_dir_file_pathname): New function.
2011-08-13 13:17:40 -07:00
Jim Meyering
789252980f doc: relax restriction on front-cover and back-cover texts
* doc/diffutils.texi (copying): Relax restriction on front-cover
and back-cover texts (just as m4 did here:
http://git.savannah.gnu.org/cgit/m4.git/commit?id=ee1e92ec).
Reported by Santiago Vila.  Fix suggested by Eric Blake.
2011-08-04 18:59:29 +02:00
Jim Meyering
df0a31f611 doc: rename diff.texi to diffutils.texi
This makes the .texi basename the same as the package name,
which is consistent with most other GNU packages.
* doc/diffutils.texi: Rename from...
* doc/diff.texi: ...removed.
* doc/Makefile.am (info_TEXINFOS): Reflect name change.
(diffutils_TEXINFOS): Likewise.
* cfg.mk (gendocs_options_): Remove this customization.  It is no
longer needed, now that the .texi name matches that of the package.
* man/Makefile.am ($(dist_man1_MANS)): Remove now-unnecessary sed
filter.
* README: Update references to diffutils.texi etc. here, too.
* .gitignore: Update here, too.
Suggested by Karl Berry.
2011-06-12 09:47:27 +02:00
Eric Blake
ffd622a281 docs: info should mention -L
* doc/diff.texi (diff Options): Document -L.
2011-03-18 15:28:44 -06:00
Jim Meyering
3f2d868741 doc: speak of the --test (-a) option, not "the -a or --test option"
Convert using this command:
perl -pi -e \
  's/(\@option{-.}) or (\@option{--.*?}) option/$2 ($1) option/' \
  doc/diff.texi
Then convert some more with this:
perl -pi -e \
    's/the (\@option{-.}) or (\@option{--.*?})$/the $2 ($1)/' \
  doc/diff.texi
Then convert more manually.

Suggested by Dan Jacobson
2011-02-15 10:21:34 +01:00
Jim Meyering
ce5367b6b3 maint: update copyright year ranges to include 2011
Run "make update-copyright", so "make syntax-check" works in 2011.
2011-01-03 22:13:35 +01:00
Jim Meyering
cadd497e27 maint: udpate GFDL license to 1.3
* doc/diff.texi: Update to use GFDL version 1.3.
2010-01-09 11:06:17 +01:00
Jim Meyering
6a44886e24 maint: update all FSF copyright year lists to include 2010
Use this command:
git ls-files |grep -vE '^(\..*|COPYING|gnulib)$' |xargs \
env UPDATE_COPYRIGHT_USE_INTERVALS=1 build-aux/update-copyright
2010-01-01 16:18:27 +01:00
Jim Meyering
9bfafb33a6 admin: update all copyright notices to include the year 2009 2009-11-11 22:18:37 +01:00
Jim Meyering
8cbaebf353 maint/sc: enable the space-TAB check
* doc/diagmeet.note: Use no TABs.
* ms/config.sed: Use TAB-space, not space-TAB in [].
* cfg.mk (local-checks-to-skip): Remove sc_space_tab.
2009-11-11 22:18:37 +01:00
Jim Meyering
036f253976 maint/sc: enable check for CVS keyword expansion
* doc/diff.texi: Remove $Id$.
* cfg.mk (local-checks-to-skip): Remove sc_prohibit_cvs_keyword.
2009-11-11 22:18:37 +01:00
Paul Eggert
8fd1173dd5 * doc/diff.texi: Update Back-Cover text to reflect new GNU wording. 2009-11-11 14:08:07 +01:00
Paul Eggert
e1820a76c0 * NEWS: New diff option --suppress-blank-empty (no longer -u default).
* doc/diff.texi (Detailed Unified): Trailing spaces are no longer
omitted.
(Trailing Blanks): New section.
(diff Options) Mention new option.
* src/diff.h (suppress_blank_entry): New decl.
* src/context.c (pr_unidiff_hunk): Support --suppress-blank-empty.
* src/util.c (print_1_line): Likewise.
* src/diff.c (longopts, main, option_help_msgid): Likewise.
(SUPPRESS_BLANK_EMPTY_OPTION): New constant.
2009-11-11 14:08:06 +01:00
Paul Eggert
e78fa51197 * doc/diff.texi (Copying This Manual): Adjust to new fdl.texi layout. 2009-11-11 14:08:06 +01:00
Paul Eggert
4805ca767a * doc/diff.texi (White Space): Note that newline always ends a line,
so -w doesn't ignore newline-related changes.  Problem reported by
David Kastrup.
2009-11-11 14:08:06 +01:00