mirror of
https://github.com/git/git.git
synced 2024-11-15 13:43:45 +01:00
84d32bf767
Sparse issues 68 errors (two errors for each main() function) such
as the following:
SP git.c
git.c:510:5: error: too many arguments for function mingw_main
git.c:510:5: error: symbol 'mingw_main' redeclared with different type \
(originally declared at git.c:510) - different argument counts
The errors are caused by the 'main' macro used by the MinGW build
to provide a replacement main() function. The original main function
is effectively renamed to 'mingw_main' and is called from the new
main function. The replacement main is used to execute certain actions
common to all git programs on MinGW (e.g. ensure the standard I/O
streams are in binary mode).
In order to suppress the errors, we change the macro to include the
parameters in the declaration of the mingw_main function.
Unfortunately, this change provokes both sparse and gcc to complain
about 9 calls to mingw_main(), such as the following:
CC git.o
git.c: In function 'main':
git.c:510: warning: passing argument 2 of 'mingw_main' from \
incompatible pointer type
git.c:510: note: expected 'const char **' but argument is of \
type 'char **'
In order to suppress these warnings, since both of the main
functions need to be declared with the same prototype, we
change the declaration of the 9 main functions, thus:
int main(int argc, char **argv)
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/*
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* This program can either change modification time of the given
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* file(s) or just print it. The program does not change atime nor
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* ctime (their values are explicitly preserved).
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*
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* The mtime can be changed to an absolute value:
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*
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* test-chmtime =<seconds> file...
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*
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* Relative to the current time as returned by time(3):
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*
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* test-chmtime =+<seconds> (or =-<seconds>) file...
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*
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* Or relative to the current mtime of the file:
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*
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* test-chmtime <seconds> file...
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* test-chmtime +<seconds> (or -<seconds>) file...
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*
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* Examples:
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*
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* To just print the mtime use --verbose and set the file mtime offset to 0:
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*
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* test-chmtime -v +0 file
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*
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* To set the mtime to current time:
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*
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* test-chmtime =+0 file
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*
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*/
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#include "git-compat-util.h"
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#include <utime.h>
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static const char usage_str[] = "-v|--verbose (+|=|=+|=-|-)<seconds> <file>...";
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static int timespec_arg(const char *arg, long int *set_time, int *set_eq)
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{
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char *test;
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const char *timespec = arg;
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*set_eq = (*timespec == '=') ? 1 : 0;
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if (*set_eq) {
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timespec++;
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if (*timespec == '+') {
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*set_eq = 2; /* relative "in the future" */
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timespec++;
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}
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}
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*set_time = strtol(timespec, &test, 10);
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if (*test) {
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fprintf(stderr, "Not a base-10 integer: %s\n", arg + 1);
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return 0;
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}
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if ((*set_eq && *set_time < 0) || *set_eq == 2) {
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time_t now = time(NULL);
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*set_time += now;
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}
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return 1;
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}
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int main(int argc, char *argv[])
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{
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static int verbose;
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int i = 1;
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/* no mtime change by default */
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int set_eq = 0;
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long int set_time = 0;
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if (argc < 3)
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goto usage;
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if (strcmp(argv[i], "--verbose") == 0 || strcmp(argv[i], "-v") == 0) {
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verbose = 1;
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++i;
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}
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if (timespec_arg(argv[i], &set_time, &set_eq))
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++i;
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else
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goto usage;
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for (; i < argc; i++) {
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struct stat sb;
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struct utimbuf utb;
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if (stat(argv[i], &sb) < 0) {
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fprintf(stderr, "Failed to stat %s: %s\n",
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argv[i], strerror(errno));
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return -1;
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}
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#ifdef WIN32
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if (!(sb.st_mode & S_IWUSR) &&
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chmod(argv[i], sb.st_mode | S_IWUSR)) {
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fprintf(stderr, "Could not make user-writable %s: %s",
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argv[i], strerror(errno));
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return -1;
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}
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#endif
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utb.actime = sb.st_atime;
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utb.modtime = set_eq ? set_time : sb.st_mtime + set_time;
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if (verbose) {
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uintmax_t mtime = utb.modtime < 0 ? 0: utb.modtime;
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printf("%"PRIuMAX"\t%s\n", mtime, argv[i]);
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}
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if (utb.modtime != sb.st_mtime && utime(argv[i], &utb) < 0) {
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fprintf(stderr, "Failed to modify time on %s: %s\n",
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argv[i], strerror(errno));
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return -1;
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}
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}
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return 0;
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usage:
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fprintf(stderr, "usage: %s %s\n", argv[0], usage_str);
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return -1;
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}
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