mirror of
https://github.com/coreutils/coreutils.git
synced 2026-10-28 17:54:36 +08:00
Collin Funk
8881342a24
Map 'false' to reuse logic from 'true', instead of creating separate
binaries for each utility.
$ size src/coreutils-prev
text data bss dec hex filename
1476092 7348 2191936 3675376 3814f0 src/coreutils-prev
$ size src/coreutils
text data bss dec hex filename
1474612 7348 2191968 3673928 380f48 src/coreutils
* src/local.mk (noinst_HEADERS): Add src/true.h.
(src_false_LDADD): Organize with the rest of the reused programs. Use
$(src_true_LDADD) instead of $(LDADD).
(src_true_SOURCES, src_false_SOURCES): New variables.
* build-aux/gen-single-binary.sh (override_single): Map 'false' to
'true'.
* src/false.c: Remove file.
* po/POTFILES.in: Remove src/false.c.
* cfg.mk (_src): Match src/true-false.c and src/true-true.c.
* src/coreutils-false.c: New file.
* src/true-false.c: Likewise.
* src/true-true.c: Likewise.
* src/true.h: Likewise.
* src/true.c: Include true.h.
(EXIT_STATUS): Always define the macro to use the value of the TRUE_MODE
variable.
(PROGRAM_NAME): Likewise.
* NEWS: Mention the improvement.
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/* Exit with a status code indicating success.
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Copyright (C) 1999-2026 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "system.h"
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#include "true.h"
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#define EXIT_STATUS (true_mode != TRUE_TRUE)
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#define PROGRAM_NAME (true_mode == TRUE_TRUE ? "true" : "false")
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#define AUTHORS proper_name ("Jim Meyering")
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void
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usage (int status)
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{
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printf (_("\
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Usage: %s [ignored command line arguments]\n\
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or: %s OPTION\n\
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"),
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program_name, program_name);
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printf ("%s\n\n",
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_(EXIT_STATUS == EXIT_SUCCESS
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? N_("Exit with a status code indicating success.")
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: N_("Exit with a status code indicating failure.")));
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oputs (HELP_OPTION_DESCRIPTION);
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oputs (VERSION_OPTION_DESCRIPTION);
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printf (USAGE_BUILTIN_WARNING, PROGRAM_NAME);
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emit_ancillary_info (PROGRAM_NAME);
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exit (status);
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}
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int
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main (int argc, char **argv)
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{
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/* Recognize --help or --version only if it's the only command-line
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argument. */
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if (argc == 2)
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{
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initialize_main (&argc, &argv);
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set_program_name (argv[0]);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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/* Note true(1) will return EXIT_FAILURE in the
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edge case where writes fail with GNU specific options. */
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atexit (close_stdout);
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if (streq (argv[1], "--help"))
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usage (EXIT_STATUS);
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if (streq (argv[1], "--version"))
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version_etc (stdout, PROGRAM_NAME, PACKAGE_NAME, Version, AUTHORS,
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(char *) NULL);
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}
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return EXIT_STATUS;
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}
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